BLAKEBOROUGH Process Control Valves and Desuperheating Equipment
PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Blakeborough Weir Valves & Controls The key to the success of Weir Valves & Controls is our capability to deliver engineering solutions that add value to the customer s process. We offer a total package of products to meet end-to-end project requirements. Using our own analysis and configuration system, we will design and deliver the optimum valves and controls solution to protect the value of the production process. A rigorous programme of information management means that the division is able to take a more anticipatory role in defining the future needs and expectations of the market by fully utilising the organisation's critical resources to provide whole process isolation and control valve solutions for the global Energy sector. With a comprehensive range of engineered valve products Weir Valves & Controls have developed an extensive global installed base and expertise across a wide range of industry sectors: Power Generation General Industrial Oil & Gas Production Refining Petrochemical Chemical Pulp & Paper Desalination 2 Weir Valves & Controls First choice for process protection
Blakeborough PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Quality assurance Weir Valves & Controls operates quality programmes to cover the full scope of their activities. Comprehensive quality systems have been developed to serve the power, oil and gas and industrial markets which they serve. The company holds approvals to: ASME Section III N, NPT, NV ASME Section I V BS EN ISO 9001:1994 API Q1 TO API LICENCES API 6D (6D-0182) AND API 6A (6A-0445) TUV - AD MERKBLATT WRD HP 0 BLAKEBOROUGH The Control Valve business unit have designed and manufactured valves for in excess of 40 years. Their control valve product range offers an extensive choice in terms of size, pressure class, body/trim materials, and includes top, top & bottom guided and cage guided valves. In addition they also supply a wide range of desuperheating equipment to satisfy power and steam conditioning applications. 6A-0445 6D-0182 The Quality systems have been approved for the supply of products to meet the requirements of the Pressure Equipment Directive (PED) and compliance modules A,D1,H,B&D have been applied in categories I through IV respectively. The company is committed to compliance with legislation and has an established environment and health and safety policy. An ongoing commitment to customer care is met through the process of continuous improvement and the further development of our systems and processes towards meeting ISO 9001:2000. Valve Testing Facilities All pressure containing items are hydrostatically tested, seat leakage tested and functionally tested. In addition, gas, packing emission, cryogenic and advanced functional testing can be arranged. Material testing facilities Non-destructive examination by radiography, ultrasonics, magnetic particle and liquid penetrant. Chemical analysis by computer controlled direct reading emission spectrometer. Mechanical testing for tensile properties at ambient and elevated temperatures, bend and hardness testing. Charpy testing at ambient, elevated and sub-zero temperatures. Further technical information can be obtained from our Web site: http://www.weirvalve.com Contents Industry applications 4 Severe service 5 Product range 6 Cage trim valves 12 X-Stream trim 16 Low flow cage trim valves 28 Top & bottom guided valves 33 Three way valves 39 Desuperheating equipment 44 Diaphragm, manual & lever operated actuators 52 Multi spring actuators 58 Actuator coding 63 Weir Valves & Controls First choice for process protection 3
PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Blakeborough Applications The Blakeborough range has valves for applications on process plant throughout industry where there is a requirement for automatic flow control, temperature control or pressure reducing. Power industry Fossil fired and nuclear power stations. Combined cycle power stations. Desalination plants. main uses are on boiler steam, desuperheating, feedwater, feed pump leak-off, turbine systems and oil systems. Oil and gas Blakeborough equipment has been supplied to many internationally known companies for high integrity service. Production, processing and transportation. Oil and gas offshore platforms. Compressor anti-surge valves. Part of a large order engineered for a gas plant in Abu Dhabi. Cage trim control valves supplied to a power station in China for boiler feedwater duties. Compressor anti-surge valves. Part of a large order engineered for a gas plant in Abu Dhabi. A pressure reducing and desuperheating unit operated by electrohydraulic actuator. The application was turbine bypass on a large power station. Hydraulically operated stainless steel and carbon steel valves for remotely operated offshore platforms in the North Sea. Petrochemicals and processing Hydrocracker duties. Chemical production melamine, ethylene, polyethylene, sulphuric/ phosphoric/hydrochloric/hf acids. Pulp and paper plants, Sugar industry beet and cane. A variety of control valves for oil systems and turbine duties on a combined cycle gas turbine power station. Steam heating was incorporated in these valves for handling polyethylene for a plant in Korea. 4 Weir Valves & Controls First choice for process protection
Blakeborough PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Three-stage ceramic trim used on pump leak-off applications. Differential pressure is 290 bar, 4205 ft/in 2. X-Stream severe service trim. Patent applied for. Seismic testing of a control butterfly valve for nuclear industry applications. Valves with low-trim outlet silencers destined for a desalination plant in the Middle East. Special/severe applications Blakeborough control valves can be used over a complete range of applications up to the most severe operating conditions. Valves can be supplied in a wide range of body and trim materials ranging from carbon steel through to exotic alloys such as Hastelloy. Trim materials and designs are selected to eliminate/minimise erosion and corrosion. Our range of special trim materials include tungsten carbide, stellite, inconel and ceramic, all of which can be supplied on liquid and gas application to greatly extend service life. In addition to standard cage trim designs which incorporate up to five stages of let-down, special designs can be provided to meet specific process requirements, such as the newly developed X- Stream trim. Blakeborough silencers, developed from the company s research into aerodynamic noise generation, can also be utilised to provide a cost effective solution to noise problems. Blakeborough can offer solutions to: Blowdown/de-pressurisation Compressor re-cycle/anti-surge Gland steam control Pump leak-off Minimum flow re-cycle valves Multi-phase fluids (including sand contamination) Oil pipeline surge relief Cryogenic valves Polyethylene service (steam jacketed valves) Research and development Blakeborough has a continuous product development policy which includes testing of new materials and components with potential benefits to the division s product range. Examples of test work conducted are, ceramic materials, valve packings and instrumentation smart positioners and most recently the X-Stream trim. In addition to the Blakeborough test facilities the extensive test services of Hopkinsons and other Weir Group companies are utilised when required. Emission testing of gland packing fitted to a valve pressurised with helium at 40 bar, 580 lb/in 2, at a temperature of 200 C, 392 F. Weir Valves & Controls First choice for process protection 5
PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Blakeborough Cage trim valves Low Flow Applications A range of small bore valves in globe and angle body configurations caters for small flow applications and offers accurate control. The design has a separate non-threaded seat ring held in position by a guide. Non-balanced construction allows high integrity valve shut-off. Ratings up to ANSI Class 4500 Globe pattern (BV502) Angle pattern (BV503) Forged body valve (BV504) Sizes: 15, 20 & 25 mm 1 2, 3 4 & 1 in Stepcone trim anti-cavitation trims. Medium/Large Flow Applications This range in the cage trim series offers a system of parts interchangeability. During service life valve trims can be easily changed to different performance characteristics if process control conditions alter. All essential components are easily removable without special tools whilst the body remains undisturbed in the pipeline. A cage, which incorporates the flow control element, also provides a plug guide giving stable support on hardened surfaces down to the point of seating. Ratings up to ANSI Class 600 Globe pattern (BV500 & BV502) Angle pattern (BV501 & BV503) Ratings ANSI Class 900 to 4500 Globe pattern (BV990) Angle pattern (BV992) Sizes: 40 750 mm 1 1 2 30 in Sizes: 40 750 mm 1 1 2 30 in Multiflow a low noise design for high pressure drop applications. Spine trim high rangeability for very small flow rates. Cage trim valve for small flow applications shown with the optional contour trim which is suitable for most applications. Valve with multi-flow trim (anti-cavitation/low noise) fitted as standard is suitable for general to moderately severe applications. For noise reduction/cavitation treatment cascade trim is recommended. Up to five stages of pressure let-down are fitted as standard. 6 Weir Valves & Controls First choice for process protection
Blakeborough PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Top & bottom guided valves Top and bottom guided valves come in two basic types, single seated and double seated. Both types feature a reversible plug which allows the fail action of the valve to be changed on site should there be a requirement to reverse the stroke direction. Double seated valves are specified for applications requiring high capacity, low to medium pressure conditions and where a tight shut-off is not essential. Low noise trims are available. Top and bottom guided valve, double seated type, arranged for pull stem to open. The valve illustrated is shown with linear contoured trim. There is a variety of other trim design options. The single seated valve design offers tight shutoff, high rangeability and can be supplied with anticavitation/low noise trim. Ratings up to ANSI Class 1500 Top and bottom guided valves double seated type: PULL stem to open (BV800) PUSH stem to open (BV801) Sizes: 40 400 mm 1 1 2 16 in Top and bottom guided valves single seated type: PULL stem to open (BV802) PUSH stem to open (BV803) Sizes: 40 250 mm 1 1 2 10 in Three way valves Valves in the three way series are most commonly used for proportional blending or splitting of two flows. There are two basic configurations: The two inlet connections with common branch outlet type (BV830) allows proportional blending of two flows into one stream. The valve can also be used for flow splitting duties with one inlet and two outlets if flow is in reverse. For proportional flow splitting the two outlet with common inlet branch type (BV831) is recommended. The valve is designed to divert a quantity of the process medium from one section of the system to another. Ratings up to ANSI Class 1500 Mixing flow type (BV830) Splitting flow type (BV831) Sizes: 40 250 mm 1 1 2 10 in Three way valve for flow mixing applications. The valve can also be used for flow splitting if the flow is in reverse. Weir Valves & Controls First choice for process protection 7
TOP & BOTTOM GUIDED VALVES BV800/1/2/3 Blakeborough Bonnet forms Standard For applications where the temperature of the controlled fluid is between -18 C and (O F) and 232 C (450 F). May be used with graphite packing up to 315 C (600 F). Although modern packagings are suitable for much higher temperatures it is recommended that the normalising bonnet be fitted in cases where the temperatures exceed the above values to accommodate lagging of the control valve body. Normalising For protection of the gland packing at temperatures above 232 C (450 F) and below -18 C (O F) down to -100 C (-150 F) The bonnet is designed with fins which dissipate the heat from process fluid and help protect the packings and actuator assembly from high temperatures. In addition the normalising bonnet is longer than the standard plain bonnet so that the valve can easily be lagged without interference with the actuator. Bellows Seal A positive leakproof stem seal for cases where gland leakage cannot be permitted. The standard bellows material is 321 stainless steel, although many other materials are available on request. The design consists of a welded flexible steel bellows which is clamped in an extended bonnet/bonnet hood. This effectively cuts out any possible leakage path around the plug stem and therefore prevents emissions from the valve packings. Packings are fitted in these valves but only act as a backup to the bellows. Cryogenic Used for temperatures below -100 C (-150 F). The bonnet designed with a long necked section which distances the packing away from the process fluid. The necked section is designed with a minimum wall section to minimise heat transfer. Cold box extension/cryogenic bonnets are also available. Packing Packings are selected based on fluid temperature and fluid type. The most common packing system materials are PTFE for low temperature and graphite to high temperature. For hydrocarbons service and where emission levels need to be controlled there are two further types of packings available. These incorporate specially selected materials and live loading to both minimise emissions and extend packing life allowing for cyclic operation. These packings are referred to as LTEP and HTEP. Packings have been tested to prove emission levels of less than 500 parts per million over 50,000 cycles and under thermal cycling conditions. PTFE Chevron is used for applications where the temperature is between cryogenic to 232 C (450 F) Grafoil is used on high temperature applications where the temperature exceeds 232 C (450 F) LTEP low emission packing, temperatures below 260 C (500 F) HTEP low emission packing, temperatures above 260 C (500 F) Other packing types can be accommodated as required. Standard Silencers Normalising Silencers/Dynamic Attenuator Bellows Seal This equipment is used on gas/vapour services to control fluid velocity and to produce dynamic attenuation. Each silencer is designed for its specific application and is considered in conjunction with the selection of the upstream control valve/trim. In selecting the silencer design all operating conditions are considered to ensure acceptable performance. PTFE Chevron Grafoil Cryogenic 8 Weir Valves & Controls First choice for process protection
Blakeborough LOW FLOW CAGE TRIM VALVES BV502/3/4/5 Characteristics Linear This characteristic provides a flow rate which is directly proportional to the valve lift. The proportional relationship produces a characteristic with a constant slope, so that with constant pressure drop the valve gain will be the same at all flows. The linear valve plug is commonly specified for liquid level control and for flow control applications requiring constant gain. Equal Percentage Equal increments of valve lift produce equal percentage changes in the fluid flow. The change in flow rate is always proportional to the flow rate just before the change in plug position is made. The equal percentage characteristic is generally used on pressure control applications, and on other applications where a large percentage of pressure drop is normally absorbed by the system itself. Valves with this characteristic should also be considered where highly varying pressure drop conditions occur or high rangeability is required. Quick Opening This provides for maximum change in flow rate at low valve lifts with a fairly linear relationship. Additional increases in valve lift give sharply reduced changes in flow rate, when the valve plug nears the wide open position, the change in flow rate approaches zero. Intermediate Other intermediate or special characteristics are available on request to meet specific control requirements. Weir Valves & Controls First choice for process protection 9
PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Blakeborough Desuperheating equipment Blakeborough offers an unsurpassed range of desuperheating equipment developed to meet all duties. A complete package is offered including the related control systems required for efficient desuperheating. Combined Pressure Reducing Desuperheating Units For the safe handling of very high drops and the control of high velocities associated with steam power generation, the combined pressure reducing and desuperheating unit is the ideal solution. A major use is with back-pressure turbines supplying exhaust steam to process. Should the turbine be shut down for any reason the steam rejected is bypassed through the valves, which serve to reduce it to the required process conditions. The unit comprises a valve body with special outlet branch incorporating a spray water injection system for steam cooling and a combined mixer/silencer device. The actuator operated valve is automatically positioned by instrument control according to downstream pressure, while the spray water supply is governed by a separate small bore control valve responding to a downstream temperature controller. Variable Orifice Desuperheaters The variable orifice desuperheater is designed to inject several finely atomised jets of spraywater into the steam flow. The head of the desuperheater is mounted into the steam pipe, and the unique design of the spray nozzles ensures that water is easily absorbed by the steam. Control of the spraywater is achieved by a conventional actuator mounted on the spraynozzle body. Ratings up to ANSI Class 2500 Variable orifice (BV985) Sizes: 25 & 40 mm 1 & 1 1 2 in Ratings up to ANSI Class 4500 Globe pattern (BV994) Angle pattern (BV995) Mini Desuperheating Equipment Sizes: Inlet 15 & 600 mm 1-24 in The mini desuperheater is used in low capacity applications where steam demand is relatively low. It consists of a spray ring with radially drilled holes which is mounted in the steam pipe where spray water is injected into the steam as a fine jet. Ratings up to ANSI Class 1500 Mini desuperheater (BV986) Sizes: 15 & 200 mm 1 2-8 in 10 Weir Valves & Controls First choice for process protection
Blakeborough PROCESS CONTROL VALVES & DESUPERHEATING EQUIPMENT Actuators and instrumentation Pneumatic Diaphragm actuators are suitable for most applications and are available in direct acting or reverse acting models. Piston actuators are used where a high thrust is needed to operate the valve. Blakeborough manufactures two types of pneumatic actuators, diaphragm and piston. There is a choice of mechanical handwheel and limit stops to suit all units. Pneumatic diaphragm Direct acting (A40) Sizes: 320-1610cm 2 Reverse acting (A41) 50-300in 2 Pneumatic piston Direct acting /spring return(a30) Sizes: 320-3220cm 2 Reverse acting /spring return (A31) 50-600in 2 Double acting/valve positioner (A36) Electric The Autotork Division of Hopkinsons Limited manufactures a full range of rotary electric actuators in modulating and on-off/regulating types. Thyristor drives and custom designed control systems up to nuclear industry standards are also produced. Other types Most other forms of actuation, such as electrohydraulic (bottom right), can be fitted to Blakeborough valves as required. Valves fitted with Autotork modulating actuators supplied for installation on a combined cycle gas turbine power plant. Instrumentation Blakeborough will select/design instrumentation to meet the needs of the most exacting process requirements. One of a large consignment of valves with fast operating control for duties on a gas plant in Abu Dhabi. Instrumentation required to give onesecond open/close on modulating and trip conditions. The cage trim type valves, supplied for steam condensate dump applications, were arranged with 125mm, 5in, travel. Weir Valves & Controls First choice for process protection 11
CAGE TRIM VALVES BV500/1 & BV990/2 Blakeborough Description The Blakeborough cage trim series of control valves BV500 and BV990, is designed to meet the requirements of most process control applications. These ranges of control valves have been developed by Blakeborough to meet the ever increasing demands of modern day processing plant. The valves incorporate high integrity features of previous designs together with a highly flexible philosophy of trim design options. There is a wide range of standard and high duty trims available which can be fitted within the same valve body. The options include Multi-Flow, Cascade (2 to 5 stages of letdown) and various designs which can be manufactured to suit the specific application. At the enquiry stage Blakeborough will consider the most suitable combination of valve components for each application. Pressure drop, noise, potential for cavitation are all considered to give the most cost effective solution for the particular application. Design features Cage guided Wide range of trim options High stability Easy maintenance Pressure rating Class 150lb to 4500lb PN10 to PN640 Sizes 40mm to 750mm 1 1 2" to 30" Travels 28.5mm to 300mm 1 1 8" to 12" End connections Flanged (all current standards) Butt weld Socket weld Screwed Clamped ends Cage Trim Valve with Multi Flow cage. Cage Trim Valve with Cascade Cage. 12 Weir Valves & Controls First choice for process protection
Blakeborough CAGE TRIM VALVES BV500/1 & BV990/2 Body Materials The Cage Trim series valves can be produced in most forms of castable alloys. Standard body materials are:- Carbon steel; Grade WCB Stainless steel; Grade 316/304/347 1.1/4% chrome moly. steel; Grade WC6 2.1/4% chrome moly.steel; Grade WC9 Monel Aluminium Bronze Hastelloy B/C Duplex/Super duplex Most other materials can be cast in the on site foundry Trim Options Multi-Flow (MF) standard Cascade (CS) severe service duties Soft faced for tight shut off Variable Stage Cascade (VS) Single stage Multi-Flow (SS) Flash cone Pilot balanced X-Stream Versatility Blakeborough Cage Trim Valves offer a wide choice of options to meet most system requirements, eliminating or greatly reducing the multiplicity of valve designs that would otherwise be required. This flexible range of valves offers an extensive selection of trim designs, materials and sizes, and is therefore able to meet the ever increasing demands of modern day plant. All parts are interchangeable between globe and angle style valves in a given size and pressure rating. Parts substitution, internal inspection and maintenance are effected with minimum trouble, the essential working components being removable while the body remains undisturbed in the pipeline. Simple, low cost, in line maintenance Comprehensive interchangeable parts systems High-stability plug guiding High flow capacity Main design standards ASME B16.34 Valves-Flanged, Threaded & Welding End ANSI FCI 70-2 Control Valve Seat Leakage ASME B16.25 Butt Welding Ends ASME B16.5 Pipe Flanges & Flange Fittings NACE MR-01-75 Valve Materials (option) BS1560 Circular Flanges for Pipes, Valves & Fittings BS4504 Circular Flanges for Pipes, Valves & Fittings Features Pressure Ratings ANSI Class 150lb to 600lb (BV500 Series) ANSI Class 900lb to 4500lb (BV990 Series) Equivalent metric pressure ratings Body A choice of globe or angle patterns available BV500 & BV990 Globe body BV501 & BV992 Angle body Weir Valves & Controls First choice for process protection 13
CAGE TRIM VALVES BV500/1 & BV990/2 Blakeborough Cage designs Multi-Flow (MF) - Single stage of pressure drop This form of trim design is fitted as standard and is suitable for most flow control applications (refer to front cover detail). In this design the flow is broken up into multiple jets by a number of radical holes in the cage. The flow is conventionally from outside to inside the trim so that jet impingement/high turbulence levels are controlled within the confines of the valve cage. Impingement of the jets within the valve cage produces a more stable downstream flow, reduces the effect of large scale separation and produces a smaller scale turbulence structure in the valve outlet. This in turn leads to a reduction in acoustic efficiency and changes the power spectrum of the generated noise, both of which contribute to a noise level reduction of between 15 and 20 dba compared to a contoured or ported trim valve. Further noise reduction in this style of trim can be achieved by reducing the size of the jets in the cage by drilling smaller holes, this design is referred to as the Single Stage Multi-Flow (SS), and can lead to a further 5 dba reduction in noise level. Cascade (CS) (Refer to front cover for details) The Cascade valve trim is a further advancement over the standard Multi-flow valve cage. It is used in control applications where high noise levels or cavitation would be predicted, with a standard trim design. Noise, flow erosion and/or vibration can result in a high pressure drop/ratio application if attention to controlling the pressure drop is not considered. The cascade trim has been specifically designed to eliminate these problems at source by controlling the pressure drop through a number of discrete stages of let-down. The Cascade cage is manufactured to close tolerances and consists of a series of sleeves. The number of sleeves (stages of let-down) required depends upon the amount of treatment necessary for the particular application. Each successive sleeve, has a number of radial holes, and a carefully calculated increase in flow area to ensure correct apportionment of the pressure drop. Thus, the small radial jets pass through a tortuous flow path resulting in high frictional and impingement losses. At the same time the impingement of the jets onto the outer radially drilled sleeves control the shock wave formation which has a major influence on overall noise reduction in gas/vapour applications. Variable Stage Cascade (VS) Is available when multiple stages of pressure letdown are required at low valve openings. This design particularly suits applications where there is a high-pressure drop at low flows, and a reduced pressure drop at normal to maximum flow-rates. The design philosophy of the Cascade and Multi- Flow Trims designs is combined within this trim. Variable Stage Cascade Body Protection Unit This design option is utilised on flashing liquid, multi-phase fluids, and on contaminated gas/vapour flows. The unit is designed to prevent erosive outlet flow, from the valve seat, directly impinging onto the pressure containing body walls. It is manufactured from hardened or hard-faced material to reduce erosion rates. The design breaks the erosive fluid flow into small jets and directs the bulk of the flow towards the valve outlet. Body Protection Unit 14 Weir Valves & Controls First choice for process protection
Blakeborough CAGE TRIM VALVES BV500/1 & BV990/2 Plug designs Balanced The balanced plug design is utilised to greatly reduce fluid forces acting on the valve plug allowing economical actuation and stable control. The cylindrical plug head is drilled with balancing ports to admit pressure above the plug head. The annular leakage flow between the valve plug and cage is minimised by a sealing ring retained within a plug groove. The standard sealing rings are carbon graphite which give Class III leakage. Alternatively a U seal can be fitted to give either Class IV or Class V leakage dependent on seating load applied by the actuator. Solid (Unbalanced) The design is used on relatively low-pressure drop and/or on-off applications. It generally requires the use of much larger actuators than would be required on the balanced plug design and in all but small valve sizes is not suited to control applications. Pilot Balanced Trim The pilot balanced plug design incorporates two plugs, the main larger diameter plug used for control and the smaller pilot situated inside the main plug significantly reduces fluid forces acting on the main plug. This design produces a high integrity metal temperature where a resilient seal would be unsuitable. Opening of the valve is by the pilot plug, which lifts from its seat prior to the main plug head. This produces a flow passage to equalise the pressure above and below the valve plug, thereby significantly reducing the fluid forces acting on the valve plug. in the closed position the inlet pressure is admitted above the plug to produce a high downward seat load and the only leakage path is across metal to metal seating. Flash-cone This plug design is specified on applications requiring a very high rangeability. At low openings the conical plug nose fits inside a matching conical seat. The plug nose has a number of circumferantial grooves, which produce a staging of the pressure drop as the flow passes between the small annular passage between the plug and the valve seat. In addition to the increased rangeability this trim also allows the valve to handle higher-pressure drops at low valve openings than can be adequately handled by a standard plug design. Soft seat Is specified on applications where it is desirable to have a maximum closure on the control valve. The soft seat design consists of a resilient seal ring clamped into the plug by a face ring. When the soft seal contacts the valve seat, a lip on the seat bites into the face of the seal and effectively prevents leakage through the seat. The soft seat design can be specified in both balanced and un-balanced designs. Seal Rings On balanced design valves the valve plug is designed to incorporate a seal ring which prevents leakage around the periphery of the valve plug. Depending upon the desired leakage and temperature through the valve a variety of seal rings are specified. Carbon Ring Triple Seal Ring U Seal Weir Valves & Controls First choice for process protection 15
X-STREAM CONTROL VALVE TRIM Blakeborough A new, technologically advanced valve trim for extreme process conditions The new Weir Valves & Controls X-Stream trim has been specifically developed to eliminate the problems of erosion, cavitation and noise on both your severe and problematic services. Through it s unique flow path design, consisting of a multitude of staggered cylinders, the X-Stream is the first of its kind to provide 3D-flow control which stems from the understanding and control threedimensionality within the fluid flow as it passes through the valve. This is important because it is in these highly three dimensional areas where problems first start to occur. The X-Stream trim itself is the product of an extensive research and development programme which has used a combination of proven computational fluid dynamics (D) and actual flow visualisation techniques to evaluate and eliminate problematic areas within the design of the trim. This means that the X-Stream trim is able to ensure superb fluid control and continued reliability through a more accurate and thorough prediction of the fluid flow through the valve. As well as providing complete 3D flow control, the X- Stream is available in the usual variety of materials and has been designed with long term reliable service and ease of maintenance in mind. The disc stack is designed to be separable, increasing ease of on-site maintenance and keeping spares costs to a minimum. A leak resistant seal is achieved using integral, three-ringed metal seals. However, the trim is also available in a welded version if required. Features 3D flow control leading to reduced noise, cavitation, erosion and vibration problems on severe service/high-pressure applications. Trim design equated to up to 40 stages of pressure letdown, keeping extreme velocities and fluid turbulence to a minimum. Reduced maintenance due to natural self cleaning/anti-clogging capabilities reducing possibility of trim blockage on contaminated services which would result in poor flow control and expensive maintenance costs. Suitable for liquid, steam and gas applications as a solution to potentially excessive noise, cavitation, vibration and erosion problems. Custom designed to meet individual application needs, incorporating linear, equal percentage and custom characterised flow characteristics. On-site maintainable due to single unit, cageguided trim design allowing quick installation and removal. Disc stack is separable for ease of handling. Available for retrofit or as complete control valve package by incorporation into both the BV500 and BV990 range of Blakeborough globe and angle valves. Recommended applications Turbine Bypass Choke Valves Minimum Pump Flow Recirculation Anti Surge Boiler Feedwater Attemperator Spray Valve Overboard Dump 16 Weir Valves & Controls First choice for process protection
Blakeborough X-STREAM CONTROL VALVE TRIM How it works! The X-Steam's unique flow path is a multi-stage design, which has been specifically designed using modern analysis equipment, to safely control stage pressure drops and fluid velocity through the trim. Therefore reducing and eliminating the effects of such problems as noise, cavitation and erosion within the control valve. The strong relationship between pressure drop and fluid velocity means that the less pressure drop taken across the valve trim, the lower the fluid velocities through it. As it is not practical to have several valves in series to achieve large pressure drops, the X-Stream trim works by dividing this pressure drop over several stages of pressure letdown within the trim itself. This allows velocities to be controlled to within desired levels, and problems related to high velocities, such as noise and erosion can be reduced, see Figure 1. This pressure drop / velocity control also means that the X-Stream trim is ideally suited for controlling cavitation which is caused by the static fluid pressure falling below the vapour pressure of the liquid, therefore causing it to vapourise and form tiny bubbles of gas. These bubbles then implode as the static pressure subsequently rises back above the vapour pressure, and it is this implosion which creates most of the damage and noise problems associated with cavitating applications. By using several stages of pressure letdown as with the X- Stream trim, the minimum static pressure in the valve can be increased so that it does not fall below the vapour pressure, hence eliminating cavitation, see Figure 2. The X-Stream's flow path design of using several rows of flow obstructions to impede the flow has the effect of controlling the energy dissipation, cause by the drop in pressure, by forcing the fluid to impinge on itself rather than on the inner surfaces of the valve and trim. Trim designs using a torturous path to dissipate energy relay heavily on the impingement of the fluid on the inner surfaces of the trim and may therefore be prone to erosion in these areas on severe applications. The flow path design also provides the X-Stream trim with its unique self-cleaning ability. As part of the customised design process the spacing between flow obstructions will be sized to allow free passage of any expected line debris and once any particles have entered the trim there is nowhere for them to become lodged. However, should and unexpected debris become wedged between the flow obstructions the individual flow paths in the X-Stream trim are designed to offer several alternative routes for the fluid so as to minimise the effect on the valves performance. By working in conjunction with The University of Manchester UK, Hopkinsons has used modern computational fluid analysis in conjunction with traditional design methods to develop the X-Stream control valve trim and to ensure that it can meet the high performance demands of modern day, extreme process applications. Patent applied for. Pressure drop profile Velocity Profile Fig 1 Fig 2 Weir Valves & Controls First choice for process protection 17
CAGE TRIM VALVES BV500/1 & BV990/2 Blakeborough Table 1 Materials of construction Cage Plug Plug Stem Seat Service 420 ST.ST. Hardened 17-4PH ST.ST. Hardened / Integral with Cage/ -35 C to 399 C 17.4 PH / -30 F to 750 F 420 ST.ST. Hardened with 316 + Stellite 400 C to 565 C Stellite face & Guide 750 F to 1050 F / with Chrome Plated NACE MR-01-75 17-4PH ST.ST. Guide Diameter -35 C to 232 C -30 F to 450 F 420 ST.ST. Hardened 17-4PH ST.ST. -35 C to 232 C Hardened with PTFE Face -30 F to 450 F Monel K500 Monel 400 Monel 400/ Integral with Cage/ -35 C to 500 C Monel K500 Monel K500-30 F to 932 F Hastelloy C Hastelloy C Hastelloy C Integral with Cage/Hastelloy C Duplex Duplex Duplex Integral with cage/duplex Ceramic/420 ST.ST. + Ceramic + Ceramic *options for Stellite face or full Stellite available for most materials. Table 2 Leakage glass Leakage Class Seal Ring Material Temperature Class 111 Carbon Graphite -35 C (-30 F) to 565 C (1050 F) Class IV & V Carbon PTFE U Seal -35 C (-30 F) to 260 C (500 F) Class IV & V High temp U Seal 260 C (500 F) to 350 C (660 F) Class IV & V Virgin PTFE U Seal Cryogenic to -35 C (-30 F) Class IV Carbon Triple Seal 350 C (660 F) to 565 C (1050 F) Class V & MSS-SP-61 Pilot Balanced -35 C (-30 F) to 565 C (1050 F) Class VI Soft Face Seat -35 C (-30 F) to 232 C (450 F) Class III, IV & V None (un-balanced) Cryogenic to 565 C (1050 F) 18 Weir Valves & Controls First choice for process protection
Blakeborough CAGE TRIM VALVES BV500/1 & BV990/2 Table 3 Recommended limiting velocities Metric Units US Units Body Size (MM) Liquid (M/S) Steam or Gas (M/S) Body Size (IN) Liquid (FT/S) Steam or Gas (Ft/S) 40, 50 13.5 150 1 1 2, 2 44 490 80, 100 13.5 150 3, 4 44 490 150, 200, 250, 300 13.5 150 6, 8, 10, 12 44 490 350, 400, 450, 500 12 130 14, 16, 18, 20 39 425 600 8.5 120 24 28 390 Note: Maximum outlet velocity (steam or gas) = 0.65 x sonic Table 4 Rangeability Body Size MF1 & MF2 MF3 & MF4 MF5 & MF6 MF7 & MF8 MM IN SS1 & SS2 SS3 & SS4 SS5 & SS6 SS7 & SS8 40 to 80 1 1 2 to 3 50:1 45:1 30:1 20:1 100 to 200 4 to 8 65:1 55:1 45:1 35:1 250 to 400 10 to 16 70:1 65:1 55:1 45:1 450 to 750 18 to 30 80:1 70:1 60:1 50:1 Note: Maximum outlet velocity (steam or gas) = 0.65 x sonic Weir Valves & Controls First choice for process protection 19
CAGE TRIM VALVES BV500/1 & BV990/2 Blakeborough Table 5 - BV500 & BV501 series valves - multi-flow trim design CV SIZE TRAVEL MF1 MF2 MF3 MF4 MF5 MF6 MF7 MF8 (mm) =% LIN =% LIN =% LIN =% LIN =% LIN =% LIN =% LIN =% LIN 1 1 2 40mm 28.5mm 32 35 26 28 21 22 12 14 9 9 2 50mm 28.5mm 53 55 40 45 32 35 26 28 21 22 12 14 9 9 3 80mm 38mm 125 145 105 124 86 104 70 86 55 66 37 43 21 27 15 15 4 100mm 38mm 180* 235 166 200 142 168 125 116 86 106 61 72 45 45 25 30 6 150mm 57mm 410* 455 350 420 298 385 240 315 193 243 120 162 100 130 80 100 8 200mm 89mm 760* 760* 680 720 610 610 520 520 385 445 250 305 190 190 120 162 10 250mm 89mm 1050 1200 900 1050 720 750 585 600 360 420 275 300 220 260 12 300mm 89mm 1200 1400 1050 1150 725 800 570 625 420 450 400 127mm 1520 1600 1400 14 350mm 152mm 1940 2200 127mm 1750 1900 1400 1600 89mm 980 1100 16 400mm 178mm 2500 2750 152mm 2200 2400 1940 2200 127mm 1750 1900 1400 1600 89mm 980 1100 18 450mm 254mm 3100 3500 178mm 2170 2450 152mm 1830 2100 127mm 1550 1750 20 500mm 254mm 3900 4300 3100 3500 178mm 2170 2450 152mm 1830 2100 127mm 1550 1750 24 600mm 305mm 5700 6000 254mm 4750 5000 178mm 3330 3500 152mm 2840 2990 *Indicates modified =% trim 20 Weir Valves & Controls First choice for process protection
Blakeborough CAGE TRIM VALVES BV500/1 & BV990/2 Table 6 BV500 series valve - cascade trim design CV VALVE SIZE CS 2 CS 3 CS 4 CS 5 YOKE VALVE MOD LINEAR MOD LINEAR MOD LINEAR MOD LINEAR MOUNTING TRAVEL =% =% =% =% 1 1 2 40mm & 2 50mm 14 25 7 12 2 1 8 54mm 1 1 8 28.5mm 20 33 10 16 2 13 16 71mm 1 1 2 38mm 3 80mm 40 48 20 24 10 12 2 13 16 71mm 1 1 2 38mm 60 72 30 36 15 18 3 9 16 90mm 2 1 4 57mm 4 100mm 64 64 32 32 16 16 8 8 2 13 16 71mm 1 1 2 38mm 96 96 48 48 24 24 12 12 3 9 16 90mm 2 1 4 57mm 6 150mm 108 144 54 72 27 36 13 18 3 9 16 90mm 2 1 4 57mm 168 224 84 112 42 56 21 28 3 9 16 90mm 3 1 2 89mm 8 200mm 200 263 100 132 50 66 25 33 3 9 16 90mm 3 1 2 89mm 282 450 141 225 70 112 35 56 5 125mm 5 127mm 340 450 170 225 85 112 42 56 5 125mm 6 152mm 10 250mm 370 495 185 248 92 124 46 62 5 125mm 3 1 2 89mm 530 708 265 354 132 177 66 88 5 125mm 5 127mm 640 850 320 425 160 212 80 106 5 125mm 6 152mm 12 300mm 470 625 235 312 117 156 60 78 5 125mm 3 1 2 89mm 670 893 335 446 167 223 83 112 5 125mm 6 152mm 940 1250 470 625 235 312 117 156 5 125mm 7 178mm Weir Valves & Controls First choice for process protection 21
CAGE TRIM VALVES BV500/1 & BV990/2 Blakeborough Table 7 BV990 and BV992 series valve - multi-flow trim design CV VALVE SIZE MF1 MF2 MF4 MF6 VALVE =% LINEAR =% LINEAR =% LINEAR =% LINEAR TRAVEL 1 1 2 40mm 30 30 20 20 14 14 8 8 1 1 8 28.5mm 2 50mm 38 45 32 32 23 23 13 13 1 1 8 28.5mm 3 80mm 84 100 72 72 50 50 29 29 1 1 2 38mm 4 100mm 155 200 130 130 90 90 52 52 2 1 4 57mm 6 150mm - 360 280 280 195 195 112 112 2 1 4 57mm 400 450 3 1 2 89mm 8 200mm 550 620 520 520 365 365 210 210 3 1 2 89mm 600 700 5 127mm 10 250mm 830 830 750 750 525 525 300 300 3 1 2 89mm 900 1100 5 127mm 12 300mm - - 1100 1100 770 770 440 440 3 1 2 89mm 1400 1600 5 127mm 14 350mm 1940 2200 1600 1600 1400 1400 1200 1200 7 175mm 16 400mm 2500 2750 2200 2200 1750 1750 1400 1400 7 175mm 18 450mm 3100 3500 2800 280 2200 2200 1750 1750 10 250mm 20 500mm 3900 4430 3100 3100 2800 2800 2200 2200 10 250mm 24 600mm 5700 6000 3900 3900 3100 3100 2800 2800 12 300mm 30 750mm = Consult factory. Table 8 BV990 and BV992 series valve - cascade trim design CV VALVE SIZE RATING CS 2 CS 3 CS 4 CS 5 VALVE MOD LINEAR MOD LINEAR MOD LINEAR MOD LINEAR TRAVEL =% =% =% =% 1 1 2 40mm ALL 20 33 10 12 1 1 18 28.5mm 2 50mm 900, 1500 & 2000LB 20 33 10 12 1 1 2 38mm 2500LB & 4500LB 20 33 12 16 1 1 2 38mm 3 80mm 900, 1500 & 2000LB 40 48 8 10 1 1 2 38mm 2500LB & 4500LB 40 48 20 24 10 12 1 1 2 38mm 900, 1500 & 2000LB 60 72 12 16 2 1 4 57mm 2500LB & 4500LB 60 72 30 36 15 18 2 1 4 57mm 4 100mm 900, 1500 & 2000LB 72 96 36 36 18 18 9 9 2 1 4 57mm 2500LB & 4500LB 96 96 48 48 24 24 12 12 2 1 4 57mm 6 150mm ALL 108 144 54 72 27 36 13 18 2 1 4 57mm ALL 168 224 84 112 42 56 21 28 3 1 2 89mm 8 200mm 900, 1500 & 2000LB 200 263 84 112 42 56 21 28 3 1 2 89mm 340 450 140 188 70 94 35 47 6 150mm 2500LB & 4500LB 200 263 100 132 50 66 25 33 3 1 2 89mm 340 450 170 225 85 112 42 56 6 150mm 10 250mm ALL 370 495 185 248 92 124 46 62 3 1 2 89mm ALL 640 850 320 425 160 212 80 106 6 150mm 12 300mm ALL 470 625 235 312 117 156 58 78 3 1 2 89mm ALL 670 893 335 446 167 223 83 112 6 150mm ALL 940 1250 470 625 235 312 117 156 7 175mm 22 Weir Valves & Controls First choice for process protection
Blakeborough CAGE TRIM VALVES BV500/1 & BV990/2 L M L N F/2 F Table 9 BV500 series valves dimensions BV500 F/2 BV501 BV500 Extension Bonnet Valve Size 1 1 2" 2" 3" 4" 6" 8" 10" 12" 14" 16" 18" 20" 24" 30" 40mm 50mm 80mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 600mm 750mm Up to ANSI 9 1 4 10 1 2 12 1 2 14 1 2 18 5 8 22 3 8 28 1 4 30 1 2 41 5 8 41 5 8 47 54 60 66 300 Class RF and BS4504 235 267 317 368 473 568 718 775 1057 1057 1194 1372 1524 1676 Up to ANSI 9 3 4 11 1 8 13 1 8 15 1 8 19 1 4 23 28 7 8 31 1 8 42 1 4 42 1 4 47 5 8 54 5 8 60 5 8 66 5 8 300 Class RTJ 248 283 333 384 489 584 733 791 1073 1073 1210 1388 1540 1692 Class 300 Butt Weld F 9 7 8 11 1 4 13 1 4 15 1 2 20 24 30 30 1 2 41 5 8 41 5 8 47 54 60 66 251 286 337 394 508 610 762 775 1057 1057 1194 1372 1524 1676 BS, PN64, PN100, ANSI 600 9 7 8 11 1 4 13 1 4 15 1 2 20 24 30 32 1 4 43 5 8 43 5 8 49 1 4 60 63 70 Class RF Flanged & Butt Weld 251 286 337 394 508 610 762 820 1108 1108 1251 1524 1600 1778 ANSI 600 Class RTJ 9 7 8 11 3 8 13 3 8 15 5 8 20 1 8 24 1 8 30 1 8 32 3 8 43 3 4 43 3 4 49 3 8 60 1 8 63 1 8 70 1 8 251 289 340 397 511 613 765 823 1111 1111 1254 1527 1603 1781 Plain Bonnet (L) 5 13 16 5 13 16 7 9 16 7 5 8 9 15 16 13 3 16 18 11 16 20 3 16 23 3 8 23 3 8 37 7 8 37 7 8 43 7 8 148 148 185 193 252 335 475 513 721 721 963 963 1114 Plain Bonnet (M) 4 7 8 4 7 8 5 1 2 6 5 16 7 7 16 9 5 16 124 124 140 160 189 237 Norm Bonnet (L) 10 11 16 10 11 16 11 3 4 12 1 16 14 7 16 18 25 3 4 28 1 2 41 5 8 41 5 8 52 52 59 272 272 298 306 368 457 655 724 1057 1057 1321 1321 1499 Norm Bonnet (M) 9 3 4 9 3 4 9 15 16 10 3 4 12 14 1 8 248 248 253 273 305 359 Bellows Bonnet (L) 13 9 16 13 9 16 16 15 16 16 15 16 22 9 16 30 1 16 32 33 9 16 344 344 430 430 572 763 815 853 Bellows Bonnet (M) 12 5 8 12 5 8 15 5 8 15 5 8 20 1 16 26 3 16 320 320 397 397 509 665 Extension Bonnet (L) 17 1 4 17 1 4 17 13 16 17 13 16 21 5 8 25 3 8 35 7 8 438 438 455 455 550 645 910 Extension Bonnet (M) 16 5 16 16 5 16 16 9 16 16 9 16 20 1 8 21 1 2 414 414 421 421 511 546 N 3 1 2 3 5 8 4 11 16 5 5 16 6 3 4 8 1 2 10 5 8 12 1 8 16 16 18 5 8 18 5 8 21 3 8 89 92 119 135 172 216 270 308 406 406 473 473 543 Standard Travel 1 1 8 1 1 8 1 1 2 1 1 2 2 1 4 3 1 2 3 1 2min 3 1 2min 7 7 10 10 12 (Also refer to Table 8) 28.5 28.5 38 38 57 89 89 89 178 178 254 254 305 Bonnet Mount Dia 2 1 8 2 1 8 2 13 16 2 13 16 3 9 16 3 9 16 5 5 5 5 5 5 5 54 54 71 71 90 90 127 127 127 127 127 127 127 Extended Travels for Cascade Trim Valves Extended travel 1 1 2 1 1 2 2 1 4 2 1 4 3 1 2 6 6 7 (Refer Table 9) 38 38 57 57 89 152 152 178 Bonnet Mount Dia 2 13 16 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 71 71 90 90 90 127 127 127 Plain L 8 1 8 8 1 8 10 9 16 9 7 8 13 5 16 18 5 8 22 26 207 207 268 251 338 473 555 650 Norm L 12 3 4 12 3 4 16 15 1 3 16 18 13 16 24 30 34 1 2 324 324 400 386 478 600 765 877 RF = Raised Face. RTJ = Ring Type Joint. Face-to-Face and Face to Centre Line Dimensions are generally in accordance with ISA 5.75.03. = Consult Factory. Weir Valves & Controls First choice for process protection 23
CAGE TRIM VALVES BV500/1 & BV990/2 Blakeborough Table 10 BV990 series valves dimensions VALVE SIZE 1 1 2 2 3 4 6 8 10 12 14 16 18 20 24 30 40mm 50mm 80mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 600mm 750mm RATINGS UP TO AND INCLUDING ANSI CLASS 1500lb ANSI 900 12 13 1 4 15 1 2 18 1 2 21 7 8 36 3 4 36 44 1 2 56 56 68 68 1 2 RF & PN160 305 337 394 470 556 934 914 1130 1422 1422 1727 1740 ANSI 900 RTJ 12 13 3 8 15 5 8 18 5 8 22 36 7 8 36 1 8 44 1 2 56 56 68 68 1 2 305 340 397 473 559 937 918 1130 1422 1422 1727 1740 ANSI 1500 RF & PN250 F 12 305 13 1 4 337 16 1 4 413 19 1 4 489 24 610 39 990 45 1142 45 1 8 1146 56 1422 56 1422 68 1727 68 1 2 1740 ANSI 1500 12 13 3 8 16 3 8 19 3 8 24 1 4 39 3 8 45 3 8 45 1 8 56 56 68 68 1 2 RTJ 305 340 416 492 616 1001 1153 1146 1422 1422 1727 1740 ANSI 900 & 1500 PN160 12 13 1 4 16 1 4 19 1 4 24 39 3 8 45 45 1 8 56 56 68 68 1 2 & PN250 Butt Weld 305 337 413 489 610 1001 1142 1146 1422 1422 1727 1740 Plain Bonnet 7 7 8 8 1 2 9 3 8 11 3 4 11 7 8 19 5 8 23 3 4 26 3 4 28 3 4 28 3 4 37 41 1 2 L 200 215 238 298 302 498 602 680 730 730 940 1054 Norm Bonnet 12 5 16 12 7 8 14 16 16 5 16 27 v 29 1 2 31 1 2 35 1 2 35 1 2 43 1 2 49 1 4 46 3 8 313 327 355 406 415 695 750 800 902 902 1105 1250 1178 N 3 3 8 3 3 4 5 5 7 8 7 3 8 11 1 4 12 3 8 13 13 1 2 13 1 2 17 3 4 19 5 8 22 7 8 86 95 126 149 188 286 315 330 342 342 451 500 582 Standard Travels 1 1 8 1 1 8 1 1 2 2 1 4 2 1 4 3 1 2 3 1 2 REFER TO TRIM SELECTION 28.6 28.6 38 57 57 89 89 Bonnet Mount Dia 2 1 8 2 1 8 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 5 5 5 5 5 54 54 71 90 90 90 127 127 127 127 127 127 127 127 ANSI CLASS 2000lb ANSI 2000 F 12 14 1 4 20 24 32 39 44 15 16 52 68 Butt Weld 305 368 508 610 813 990 1142 1321 1727 Plain 7 7 8 8 9 16 9 7 8 12 1 8 13 3 4 19 5 8 22 3 4 26 1 4 33 7 8 Bonnet L 200 217 251 309 350 499 603 667 859 Norm 12 5 16 13 9 16 15 1 8 16 5 8 20 27 3 8 31 1 2 34 1 8 Bonnet 313 344 385 422 507 696 800 867 N 3 3 8 4 1 16 5 6 1 16 9 1 4 11 1 4 13 3 8 15 5 8 86 103 128 154 235 286 339 397 Travel 1 1 8 1 1 8 1 1 2 2 1 4 2 1 4 3 1 2 3 1 2 REFER TO TRIM SELECTION 28.6 28.6 38 57 57 89 89 Bonnet Mount Dia 2 1 8 2 1 8 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 5 5 5 5 5 54 54 71 90 90 90 127 127 127 127 127 127 127 127 ANSI CLASS 2500lb ANSI 2500 F 14 1 8 16 1 4 21 1 2 25 5 8 35 7 16 45 1 4 55 1 8 63 71 Butt Weld 359 413 546 650 900 1150 1400 1600 1803 Plain Bonnet 8 7 8 10 1 4 11 5 8 15 20 1 4 25 1 2 L 225 260 296 381 514 649 Norm Bonnet 14 14 7 8 16 5 8 19 7 8 26 3 8 45 1 4 355 377 422 504 669 846 N 4 4 3 8 5 7 9 3 8 12 3 8 100 110 128 177 238 315 Travel 1 1 8 1 1 8 1 1 2 2 1 4 2 1 4 3 1 2 3 1 2 REFER TO TRIM SELECTION 28.6 28.6 38 57 57 89 89 Bonnet Mount Dia 2 13 16 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 5 5 5 5 5 5 71 71 90 90 90 127 127 127 127 127 127 127 127 127 = Consult Factory Consult factory for ANSI Class 4500lb Rated Valves 24 Weir Valves & Controls First choice for process protection
Blakeborough CAGE TRIM VALVES BV500/1 & BV990/2 L N M F/2 BV990 F BV992 F/2 Table 11 BV992 series valves dimensions VALVE SIZE 1 1 2 2 3 4 6 8 10 12 14 16 18 20 24 30 40mm 50mm 80mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm 450mm 500mm 600mm 750mm RATINGS UP TO AND INCLUDING ANSI CLASS 1500lb ANSI 900 6 7 8 1 8 9 1 4 12 13 16 RF & PN160 152 178 206 235 310 ANSI 900 RTJ 6 7 1 16 8 13 16 9 5 16 12 1 4 152 179 208 237 311 ANSI 1500 F 6 7 8 2 9 5 8 13 1 4 RF & PN250 2 152 178 216 244 337 ANSI 1500 6 7 1 16 8 9 16 9 11 16 13 5 16 RTJ 152 179 218 246 338 ANSI 900 & 1500 PN160 6 6 5 8 8 1 2 9 5 8 13 1 4 & PN250 Butt Weld 152 168 216 244 337 Plain Bonnet 6 7 8 7 7 7 16 9 1 16 M 175 178 188 230 Norm Bonnet 11 3 8 11 7 16 12 13 3 8 288 290 304 339 Standard Travels 1 1 8 1 1 8 1 1 2 2 1 4 2 1 4 3 1 2 3 1 2 REFER TO TRIM SELECTION 28.6 28.6 38 57 57 89 89 Bonnet Mount Dia 2 1 8 2 1 8 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 5 5 5 5 5 54 54 71 90 90 90 127 127 127 127 127 127 127 127 ANSI CLASS 2000lb ANSI 2000 F 6 7 4 10 12 16 19 1 4 22 1 4 24 3 4 Butt Weld 2 152 184 254 305 407 495 565 629 Plain 6 7 8 7 7 13 16 9 7 16 12 3 16 16 1 4 Bonnet M 175 178 199 239 310 413 Norm 11 3 8 12 13 1 8 13 7 8 Bonnet 288 306 333 352 Travel 1 1 8 1 1 8 1 1 2 2 1 4 2 1 4 3 1 2 3 1 2 REFER TO TRIM SELECTION 28.6 28.6 38 57 57 89 89 Bonnet Mount Dia 2 1 8 2 1 8 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 5 5 5 5 5 54 54 71 90 90 90 127 127 127 127 127 127 127 127 ANSI CLASS 2500lb ANSI 2500 F 6 8 8 1 8 10 3 4 12 13 16 17 3 4 22 5 8 27 9 16 31 1 2 Butt Weld 2 175 207 273 325 450 575 700 800 Plain Bonnet M Norm Bonnet Travel 1 1 8 1 1 8 1 1 2 2 1 4 2 1 4 3 1 2 3 1 2 REFER TO TRIM SELECTION 28.6 28.6 38 57 57 89 89 Bonnet Mount Dia 2 13 16 2 13 16 3 9 16 3 9 16 3 9 16 5 5 5 5 5 5 5 5 5 71 71 90 90 90 127 127 127 127 127 127 127 127 127 = Consult Factory Consult factory for ANSI Class 4500lb Rated Valves Weir Valves & Controls First choice for process protection 25