type ace97 Pad-Depad valve

Transcription

1 June 2013 type ace9 Pad-Depad valve Bubble Tight Shutoff Frictionless Pilot Valve Pilot Controlled Maximum Vapor Space Control Stainless Steel Self-Contained Diagnostics Fully Balanced W8161 Figure 1. Type ACE9 Pad-Depad Valve D221X0

2 Specifications Pad Specifications Pad Body Sizes NPS 1/2, 1, and 2 / DN 1, 2, and 0 Maximum Operating Inlet Pressure (1) 200 psig / 13.8 bar Maximum Main Valve Inlet Pressure (1) 200 psig 13.8 bar Control Pressure Ranges (1) See Table 1 Maximum and Minimum Differential Pressures (1) Minimum: 2 psig / 1. bar Maximum: 200 psig / 13.8 bar Maximum Backpressure (1) 20 psig / 1.4 bar Flow Coefficients for Relief Valve Sizing (1% of rated ) = 0.2 use = 0.22 =. use = 8.2 = 0.4 use = 0.44 = use = 11 = 1 use = 1.1 = 20 use = 22 = 2 use = 2.2 = 4 use = 0 = 4 use = 4.4 = use = 66 Depad Specifications Depad Body Sizes NPS 1, 2, 3, and 4 / DN 2, 0, 80, and 0 Depad Pressure Ranges (1) See Table 1 Valve Coefficients NPS 1 / DN 2 body: = 3, =, or = 1 NPS 2 / DN 0 body: = 20, = 3, or = 0 NPS 3 / DN 80 body: = 6, = 90, = 11, or = 140 NPS 4 / DN 0 body: =, = 200, or = 280 General Type ACE9 Specifications Pressure Registration External Temperature Capabilities Nitrile (NBR): -20 to 180 F / -29 to 82 C Fluorocarbon (FKM): 0 to 2 F / -18 to 0 C Ethylenepropylene (EPDM - FDA): -20 to 2 F / -29 to 0 C Perfluoroelastomer (FFKM): -20 to 2 F / -29 to 0 C Construction Materials Pad Body and Bonnet NPS 1/2 and 1 / DN 1 and 2; = 0.2 and = 0.4: 316L Stainless steel NPS 1 and 2 / DN 2 and 0; = 1 to 4 and = to : 316 Stainless steel NPS 2 / DN 0; = 20 to : CF3M/CF8M Stainless steel Depad Body and Bonnet: 316 Stainless steel Cage: 316 Stainless steel Actuator: 316 Stainless steel Trim: stainless steel Elastomers: Nitrile (NBR), Fluorocarbon (FKM), Perfluoroelastomer (FFKM), or Ethylenepropylene (EPDM - FDA) Diaphragm: Nitrile (NBR), Fluorocarbon (FKM), or Ethylenepropylene (EPDM - FDA) Approximate Weights NPS 1/2 x 1 x 1 / DN 1 x 2 x 2: 0 pounds / 32 kg NPS 1 x 2 x 2 / DN 2 x 0 x 0: pounds / 48 kg NPS 2 x 3 x 3 / DN 0 x 80 x 80: 1 pounds / 9 kg 1. The pressure/temperature limits in this Bulletin or any applicable standard limitation should not be exceeded. Introduction The Type ACE9 Pad-Depad valve is a self-contained, pilotoperated valve that maintains a blanket of inert gas on top of a stored product to protect it from atmospheric contamination. It reduces combustibility, decreases vaporization, controls vapor space pressure during pump-in and pump-out operations, and helps prevent the tank from entering a vacuum condition and collapsing upon itself. The Type ACE9 valve provides excellent and accurate pressure control of the vapor space in the tank. Blanketing pressure is kept to a minimum in order to conserve the use of blanketing gas. Pad (Tank Blanketing) ensures a minimum pressure is maintained in the tank vapor space during normal operation. Depad (Vapor Recovery) limits tank pressure to a maximum value during normal operation. Tank and vapor recovery connections are available to meet most customer requirements. A Single Array Manifold (SAM) provides a single tank and sensing connection and is required for tanks having a single nozzle. Accessories include gauges, purge meters, pressure switches, and check valves. Features and Benefits Pilot Controlled: Type ACE9 valves (NPS 1 / DN 2 and larger) are pilot-operated for a higher degree of accuracy and control. Fully Balanced: A fully balanced valve eliminates setpoint changes caused by variations in inlet pressure. Options and Accessories Inlet Pressure Gauge: Displays pressure of blanketing gas supply to the blanketing valve. Control Pressure Gauge: Low-pressure gauge measures tank pressure. Pressure Switch: Allows for the installation of an alarm system to indicate either low or high-pressure on the tank. Flow Indicator: Provides a visual indication of blanketing gas flow. Outlet Check Valve: Prevents corrosive gases and vapors from flowing back into the blanketing system. Diagnostic Gauge: Allows analysis of valve operation in the field, simplifying service and reliability. (Only available on NPS 1 and 2 / DN 2 and 0 pad valve.) 2

3 depad pilot valve Depad main valve actuator vent gas inlet pad valve inlet filter E063 to AND FROM tank Figure 2. Type ACE9 Pad-Depad Valve Parts Single Array Manifold (SAM): Provides sense line connection and main valve connection through a single tank nozzle. Purge Meters: Prevents corrosive tank vapors from damaging upstream equipment. Principle of Operation Pad (Figure 3) NPS 1 and 2 / DN 2 and 0 Pad Valves (Figure 3) When tank pressure decreases below the pad setpoint (due to pump out operations or thermal cooling), the actuator diaphragm moves downward pushing open the pad pilot. This creates flow from the pad loading chamber to downstream. When pad loading pressure decreases, the force created by inlet pressure on the pad main valve plug overcomes the main spring force and opens the main valve plug allowing flow through the pad valve to the tank. Once tank pressure reaches pad setpoint, the pad pilot closes, pad loading pressure equalizes with inlet pressure and the pad valve closes. NPS 1/2 / DN 1 Pad Valves (Not Shown) moves downward pushing the valve plug open and allowing flow through the pad valve to the tank. Depad (Figure 4) When tank pressure increases above the depad setpoint (due to pump-in operations or thermal heating), the actuator diaphragm moves upward and pushes open the depad pilot. This releases depad loading pressure (nitrogen or other supply gas). When depad pilot loading pressure decreases, the depad main valve opens by a spring and allows flow from the tank to the vent or recovery system. Diagnostics Tank blanketing valves are often installed in locations that are difficult to access. Type ACE9 valves are available with a diagnostics feature that allows analysis of valve operation in the field, making maintenance easier and more reliable. The diagnostics feature relies uses relationship of pressure in the pilot and main valve chambers to analyze valve performance. The NPS 1/2 / DN 1 Pad valve has a main valve only. When tank pressure decreases below the pad setpoint the actuator diaphragm 3

4 loading pressure exhausted back to tank depad pilot on/off diagnostic gauge adjustable deadband cage inlet poppet o-ring seat inlet bleed regulator actuator controlled pressure range spring depad main valve vent rolling diaphragm sensing connection open pilot E000 INLET PRESSURE ATMOSPHERIC PRESSURE TANK PRESSURE PILOT LOADING PRESSURE VENT HEADER PRESSURE INLET BLEED PRESSURE Figure 3. Type ACE9 Pad On / Depad Off main valve spring inert gas in loading pressure exhausted back to tank pad valve depad pilot diagnostic port tank connection on/off diagnostic gauge cage poppet regulator controlled pressure range spring depad main valve inlet o-ring seat rolling diaphragm actuator Vent sensing connection E0004 closed pilot main valve spring diagnostic port INLET PRESSURE ATMOSPHERIC PRESSURE TANK PRESSURE PILOT LOADING PRESSURE VENT HEADER PRESSURE inert gas in pad valve tank connection Figure 4. Type ACE9 Pad Off / Depad On 4

5 Table 1. Control Pressure Ranges Controlled Pressure RANGEs Pad Setpoint Depad Setpoint (Above Pad) SPRING FREE LENGTH SPRING WIRE DIAMETER Inch w.c. mbar Inch w.c. mbar Inch mm Inch mm 0. to 3 1 to 4 to to to 1 to 1 4 to 6 to to 13 to 32 4 to 16 to to to 2 (1) 16 to 8 40 to 194 (1) to to 2 (1) 16 to 8 40 to 194 (1) to 1.4 psig 0.03 to 0. bar 0.2 to 1 psig 0.02 to 0.0 bar to 2.2 psig 0.0 to 0.1 bar 0.2 to 2.0 psig 0.02 to 0.14 bar Two nested springs are used. System Sizing Tank Blanketing systems must be properly sized to have capacity to supply enough blanketing gas to maintain the setpoint pressure, yet large enough to vent excess gas without having tank vapor space pressure rise above allowable limits. Pad valves must not be so large that they cause overpressure. Sizing must also take into account applicable codes and standards as they apply to the installation. For proper sizing of the pad and depad valves, certain information is required. Proper sizing is essential to protect the product, the tank, the environment, and personnel. Sizing Information The following list contains all necessary information to properly size a valve once system parameters are determined. The customer must provide the following: Pump-in rate (for depad calculation) Pump-out rate (for pad calculation) Inert (blanketing) gas specific gravity Inert gas supply pressure (for pad selection) Tank volume (for API sizing both pad and depad) Stored fluid flash point (for API sizing depad) Stored fluid boiling point (for API sizing depad) Vent gas specific gravity (SG) (for API sizing depad) Depad setpoint Vent piping backpressure Sizing method (Direct Displacement or API 2000) Direct Displacement The direct displacement method should be used with extreme caution. The direct displacement method determines the amount of blanketing gas required to replace liquid pumped out of the tank and the amount of gas that must be removed due to liquid pump in. Direct displacement does not account for fluctuating temperature or other factors that may affect pressure in the vapor space. This method is typically applied to tanks containing non-flammable, non-volatile products. Pad Sizing Q pad = Q pump-out where, Q pad = Required Pad Flow Rate Q pump-out = Required Flow Rate for displacement due to pump-out (See Table 2) Depad Sizing Q depad = Q pump-in where, Q depad = Required Depad Flow Rate Q pump-out = Required Flow Rate for displacement due to liquid pump-in. (See Table 2) API 2000 The American Petroleum Institute Standard 2000 (API 2000) sizing criteria accounts for liquid pump-in and pump-out as well as contraction and expansion of tank vapors due to heating and cooling. When using API 2000 methods: Pad Sizing Q pad = Q pump-out + Q thermal where, Q pad = Required Pad Flow Rate Q pump-out = Required Flow Rate for displacement due to pump-out (See Table ) Q thermal = Required Flow Rate due to thermal cooling (See Table 6) Depad Sizing Q depad = Q pump-in + Q thermal where, Q pad = Required Depad Flow Rate Q pump-in = Required Pump-In Rate (See Table ) Q thermal = Required Flow Rate due to thermal expansion (See Table 6) Supplemental Venting Depending on the method, there can be a significant difference in the calculated required capacity. No matter which method is used, the tank must be equipped with supplemental venting to protect the tank, product, and personnel in cases of equipment failure, fire exposure, or other conditions that could cause the tank pressure or vacuum to exceed operating limits. Capacity Information Pad Valves In the case of pad valves, the tables are based on 0.9 specific gravity nitrogen. If it is desired to convert nitrogen flow rates of another gas, multiply the flow rate value from the capacity table by the following correction factor in Table 3. Depad Valves In the case of depad valves, the tables are based on air (1.0 specific gravity). Always use the differential pressure between tank pressure (depad setpoint) and vent header (vapor recovery) pressure to calculate flow through the depad valve.

6 Table 2. Flow Rate Conversion multiply maximum pump rate by to obtain: U.S. GPM U.S. GPH m 3 /hr Barrels/hr Barrels/day SCFH SCFH Nm 3 /h SCFH SCFH Table 3. Correction Factors (For Converting Nitrogen Flow Rates to Other Gas Flow Rates) BLANKET GAS SPECIFIC GRAVITY CORRECTION FACTOR Natural Gas Air Dry CO Correction Factor = SG Table 4. Correction Factors (For Converting Air Flow Rates to Other Gas Flow Rates) VENT GAS SPECIFIC GRAVITY Correction Factor = 1.00 SG CORRECTION FACTOR Table. Flow Rate Requirements for Liquid Pump-In Pump-Out per API 2000 Flashpoint > 0 F / 38 C or Normal Boiling Point > 0 F / 149 C Flashpoint < 0 F / 38 C or Normal Boiling Point < 0 F / 149 C Pump-Out (Inbreathing).6 SCFH / 0.1 Nm 3 /h of air per barrel/hour of liquid 8.0 SCFH / 0.21 Nm 3 /h of air per GPM of liquid 3.1 SCFH / 0.94 Nm 3 /h of air per m 3 /hr of liquid.6 SCFH / 0.1 Nm 3 /h of air per barrel/hour of liquid 8.0 SCFH / 0.21 Nm 3 /h of air per GPM of liquid 3.1 SCFH / 0.94 Nm 3 /h of air per m 3 /hr of liquid Pump-In (Outbreathing) 6 barrels/hour of SCFH air per barrel/hour of liquid 8.6 SCFH / 0.23 Nm 3 /h of air per GPM of liquid 3. SCFH / 1.01 Nm 3 /h of air per m 3 /hr of liquid SCFH / 0.32 Nm 3 /h of air per barrel/hour of liquid 1 SCFH / 0.46 Nm 3 /h of air per GPM of liquid.3 SCFH / 2.02 Nm 3 /h of air per m 3 /hr of liquid Table 6. Gas Flow Required for Thermal Cooling (Inbreathing) or Heating (Outbreathing) per API 2000 (Interpolate for Intermediate Sizes) VESSEL CAPACITY Barrels Gallons Liters ,000 1,000 20,000 2,000,000 3,000 40,000 4,000 0,000,000 0,000 80,000 90,000 0,000 0, ,000 1, ,000 42,000 84,000 6, ,000 2, ,000 6, ,000 1,00,000 1,2,000 1,40,000 1,680,000 1,890,000 2,0,000 2,20,000 2,940,000 3,3,000 3,80,000 4,200,000,040,000,880,000 6,20, ,000 9,00 19, ,000 4, ,000 9,000 1,90,000 2,38,000 3,180,000 3,9,000 4,69,000,64,000 6,39,000,14,000,949,000 9,39,000 11,9,000,19,000 14,9,000 1,899,000 19,09,000 22,28,000 2,438,000 Inbreathing AIR FLOW RATE REQUIRED Outbreathing Flashpoint < 0 F / 38 C or Normal Boiling Point < 0 F / 149 C Flashpoint > 0 F / 38 C or Normal Boiling Point > 0 F / 149 C SCFH Nm³/h SCFH Nm³/h SCFH Nm³/h ,000 1,000 20,000 24,000 28,000 31,000 34,000 3,000 40,000 44,000 48,000 2,000 6,000,000 68,000,000 82, ,000 1,000 1,000 19,000 21,000 23,000 24,000 2,000 29,000 31,000 34,000 36,000 41,000 4,000 0, ,000 1,000 20,000 24,000 28,000 31,000 34,000 3,000 40,000 44,000 48,000 2,000 6,000,000 68,000,000 82, ,000,,000 28,618,000 90, , ,

7 Table. NPS 1/2 / DN 1 Pad Valve Capacities of 0.9 Specific Gravity Nitrogen CAPACITIES IN SCFH / Nm 3 /h OF NITROGEN INLET PRESSURE = 0.2 = 0.4 psig bar kg/cm 2 kpa SCFH Nm 3 /h SCFH Nm 3 /h Table 8. NPS 1 / DN 2 Pad Valve Capacities of 0.9 Specific Gravity Nitrogen CAPACITIES IN SCFH / Nm 3 /h OF NITROGEN INLET PRESSURE C V = 1 C = 2 C V V = 4 C V =. C V = psig bar kg/cm 2 kpa SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h Typical accuracy when flowing to 0% of table value is ± 0. inch w.c. / 1 mbar ,200 11,000 11,800,0 13,400 14,200 1,000 1,800 16, ,00,0 13,900 1,0 1,200 18,800 20,400 22,000 23,0 2,200 26,800 28,400,000 31,00 33, ,000 11,0 14,000 1,0 20,0 23,200 26,200 29,200 32,200 3,0 38,0 41,0 44,0 4,0 0,0 3,400 6,400 9,400 62, ,000 1,0 18,00 22,800 26,900,000 34,900 39,000 43,000 4,000 1,000,0 9,0 63,0 6,0 1,200,200 9,200 83, Table 9. NPS2 / DN 0 Pad Valve Capacities of 0.9 Specific Gravity Nitrogen CAPACITIES IN SCFH / Nm 3 /h OF NITROGEN INLET PRESSURE C V = 20 C V = 4 C V = psig bar kg/cm 2 kpa SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h Typical accuracy when flowing to 0% of table value is ± 0. inch w.c. / 1 mbar. 26,00,200 3,00 4,00 3,800 61,800 69,900 8,000 86,000 2,0 6,0 142, , ,200 68,0 84,00 2,800 1, ,200 14,400 1,00 193,0 238, , ,400 34, ,000 90,800 1,00 13,0 161,400 18,0 209, ,000 28,200 6,00 38,900 42, , ,1 11,449 13,389

8 Table. NPS 1 / DN 2 Depad Valve Capacities of 1.0 Specific Gravity Air differential pressure (1) flow capacity in scfh / Nm 3 /h of 1.0 specific gravity air = 3 = 6 = = 1 Inch w.c. mbar SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h psig 1.1 psig 1.2 psig 1.3 psig 1.4 psig 1. psig 1.6 psig 1. psig 1.8 psig 1.9 psig 2.0 psig 2.1 psig 2.2 psig 2.3 psig 2.4 psig 2. psig 2.6 psig 2. psig 2.8 psig Always use the differential pressure between tank pressure (depad setpoint) and vent header (vapor recovery) pressure to calculate flow through the depad valve

9 Table 11. NPS 2 / DN 0 Depad Valve Capacities of 1.0 Specific Gravity Air differential pressure (1) flow capacity in scfh / Nm 3 /h of 1.0 specific gravity air = 20 = 3 = 0 Inch w.c. mbar scfh Nm 3 /h scfh Nm 3 /h scfh Nm 3 /h psig 1.1 psig 1.2 psig 1.3 psig 1.4 psig 1. psig 1.6 psig 1. psig 1.8 psig 1.9 psig 2.0 psig 2.1 psig 2.2 psig 2.3 psig 2.4 psig 2. psig 2.6 psig 2. psig 2.8 psig ,000,0,0,900 11,200 11,400 11,00,000,200,00,00 13,000 13, ,4 11,20,040,0 13,40 14,0 14,0 1,30 1,9 16,490 1,800 16,0 1,0 18,000 18,00 19,400 20,000 20,0 21,200 21,800 22,400 22,900 23,00 24,000 24,00 2,000 2,00 26,000 26,00 1. Always use the differential pressure between tank pressure (depad setpoint) and vent header (vapor recovery) pressure to calculate flow through the depad valve

10 Table. NPS 3 / DN 80 Depad Valve Capacities of 1.0 Specific Gravity Air differential pressure (1) flow capacity in scfh / Nm 3 /h of 1.0 specific gravity air = 90 = 11 = 140 Inch w.c. mbar scfh Nm 3 /h scfh Nm 3 /h scfh Nm 3 /h psig 1.1 psig 1.2 psig 1.3 psig 1.4 psig 1. psig 1.6 psig 1. psig 1.8 psig 1.9 psig 2.0 psig 2.1 psig 2.2 psig 2.3 psig 2.4 psig 2. psig 2.6 psig 2. psig 2.8 psig ,200,900 11,0,200 13,400 14,400 1,400 16,400 1,0 18,0 18,900 19,00 20,400 21,200 20,0 21,0 22,0 23,200 24,0 24,900 2,00 26,00 2,0 28,0 28,800 29,00,200,900 21,0 32,200 32,900 33,00 34, ,000,0 13,000 13,900 14,800 1,0 1,0 18,00 19,00 20,900 22,0 23,200 24,200 2,200 26,0 2,0 26,000 2,0 28,00 29,0,800 31,800 32,900 33,900 34,900 3,900 36,800 3,00 38,0 39,00 40,0 41,200 42,000 42,800 43, ,400,000 13,400 14,00 1,900 1,000 18,000 19,000 20,800 22,00 24,000 2,00 26,900 28,200 29,00,00 31,800 32,900 31,0 33,200 34,00 36,0 3,00 38,800 40,0 41,0 42,00 43,00 44,800 4,900 4,000 48,0 49,0 0,0 1,0 2,0 3,0 1. Always use the differential pressure between tank pressure (depad setpoint) and vent header (vapor recovery) pressure to calculate flow through the depad valve

11 Table 13. NPS 4 / DN 0 Depad Valve Capacities of 1.0 Specific Gravity Air differential pressure (1) flow capacity in scfh / Nm 3 /h of 1.0 specific gravity air = = 200 = 280 Inch w.c. mbar SCFH Nm 3 /h SCFH Nm 3 /h SCFH Nm 3 /h psig 1.1 psig 1.2 psig 1.3 psig 1.4 psig 1. psig 1.6 psig 1. psig 1.8 psig 1.9 psig 2.0 psig 2.1 psig 2.2 psig 2.3 psig 2.4 psig 2. psig 2.6 psig 2. psig 2.8 psig ,0,900 14,400 1,800 1,000 18,200 19,0 20,400 22,0 24,0 2,800 2,0 28,800,200 31,0 32,900 34,0 3,0 33,900 3,0 3,200 38,00 40,0 41,0 42,900 44,0 4,00 46,800 48,000 49,200 0,400 1,00 2,0 3,00 4,800,900 6, ,0 14,900 1,200 19,200 21,000 22,00 24,0 2,800 2,200 29,800 32,200 34,400 36,00 38,400 40,0 42,0 43,800 4,00 4,0 4,200 4,400 49,0 1,0 3,00,400,200 9,000,00 62,400 64,000 6,0 6,200 68,00 0,200 1,00 3,0 4,00, ,000 20,800 24,0 26,900 29,00 31,800 34,000 36,0 38,0 41,00 4,000 48,0 1,0 3,800 6,00 9,000 61,400 63,00 6,900 63,0 66,400 69,400 2,200,000,0 80,200 82,0 8,0 8,400 89,00 91,900 94,0 96,200 98,0 0,0 2,0 4,0 6, Always use the differential pressure between tank pressure (depad setpoint) and vent header (vapor recovery) pressure to calculate flow through the depad valve

12 18. / 14. / 318 SENSING NPS 1 / DN 2, VAPOR RECOVERY 22. / 2 C 6.0 / B 1 NPT BLANKETING GAS A 3.0 / 6 TANK.2 / 183 SENSING 2. / 64 NPS 1 x 1 x 1 OR 2 / DN 2 x 2 x 2 OR 0 with options 24.1 / 6. / / 3 VAPOR RECOVERY SENSING B SENSING C 8.1 / NPT BLANKETING GAS A 6.3 / 1 TANK.2 / / 64 INCHES / mm Figure. Type ACE9 Pad/Depad Valve Dimensions NPS 1 x 3 x 3 OR 4 / DN 2 x 80 x 80 OR 0 with options Table 14. Type ACE9 Pad/Depad Valve Dimensions DIMENSIONS IN INCH / mm FOR NPS 1 x 1 x 1 OR 2 / DN 2 x 2 x 2 OR 0 BODy WITH OPTIONS A B C NPT NPT NPT 9.4 / / / / / / NPT DIMENSIONS IN INCH / mm FOR NPS 1 x 3 x 3 or 4 / DN 2 x 80 x 80 OR 0 BODy WITH OPTIONS NPS 1 / DN 2, A B C NPS 1-1/2 / DN 40, NPS 2 / DN 0, 3 NPT NPS 3 or 4 / DN 80 or 0, 4 NPT NPS 3 or 4 / DN 80 or 0, 11. / / / / / / 4.8 / / 396

13 . / 318 BLANKETING GAS VAPOR RECOVERY 13.3 / 33 SENSING B C.3 / 18 TANK 8.0 / 203 A 3.0 / 6 NPS 1/2 x 1 x 1 OR 2 / DN 1 x 2 x 2 OR 0 with options 2. / 64. / 318 BLANKETING GAS NPS 1 or 2 / DN 2 or 0, VAPOR RECOVERY 13.3 / 33 B C A 3.0 / 6 TANK NPS 1/2 x 1 x 2 / DN 1 x 2 x 0 WITH SINGLE ARRAY MANIFOLD 8.0 / 203 INCHES / mm Figure. Type ACE9 Pad/Depad Valve Dimensions (continued) Table 14. Type ACE9 Pad/Depad Valve Dimensions (continued) Without Filter DIMENSIONS IN INCH / mm FOR NPS 1/2 x 1 x 1 OR 2 / DN 1 x 2 x 2 OR 0 BODy WITH OPTIONS With Filter A B C NPS 1/2 / DN 1, Without Filter NPS 1/2 / DN 1, With Filter 1 NPT NPS 1 or 2 / DN 2 or 0, 1 NPT NPS 1 or 2 / DN 2 or 0,.4 / / 3 14 / / / 93 8 / / 1.6 / 269 Without Filter DIMENSIONS IN INCH / mm FOR NPS 1/2 x 1 x 2 / DN 1 x 2 x 0 BODY WITH SINGLE ARRAY MANIFOLD With Filter A B C NPS 1/2 or 1 / DN 1 or 2, Without Filter NPS 1/2 or 1 / DN 1 or 2, With Filter 1 NPT NPS 1 or 2 / DN 2 or 0, NPS 2 / DN 0,.4 / / 3 14 / / / 93 8 / /

14 Information Required In order to complete the specification worksheet, the following information must be provided. Operating pressures and temperatures must be within the ranges listed within this bulletin. Please specify measurement units: Imperial (USA) or Metric Pad Information 1. Maximum Inert Gas Flow - SCFH or Nm3/hr: or Pad Valve Cv: 2. Inert Gas: or Inert Gas Specific Gravity: 3. Supply Pressure, Inert Gas - Maximum: Minimum: 4. Operating Temperature - F: or C:. Pad Setpoint: inches w.c. or mbar Depad Information 6. Maximum Vent Gas Flow - SCFH or Nm 3 /hr: or Depad Valve :. Vent Gas Specific Gravity: 8. Vent Gas Temperature - F: or C: 9. Depad Setpoint: inches w.c. or mbar. Relief Header Pressure at Depad Outlet, Flowing Conditions, Maximum: inches w.c. or mbar 11. Stored Liquid Flash Point - F: or C: or Stored Liquid Boiling Point - F: or C: (Require at least one for API sizing). Storage Temperature of Product - F: or C: 13. Depad Materials of Construction Compatible with Stored Liquid and Vapors Metals: 316 SST or Elastomers: Nitrile (NBR), Fluorocarbon (FKM), Ethylenepropylene (EPDM-FDA), Perfluoroelastomer (FFKM), or Other 14. Product to be Blanketed: 1. Optional Equipment Required: 16. Emergency Pressure Vent Setpoint: inches w.c. (separate device) Connections 1. Inert Gas Supply - NPT: Flanged: Other (specify): 18. Tank Connection - NPT: Flanged: Other (specify): 19. Header Connection - NPT: Flanged: Other (specify): Notes If the required Pad or Depad valve value is unknown, refer to the Sizing section for more details or contact your local Sales Office. If the required Pad or Depad valve value is known, continue with the Ordering worksheet. 14

15 Ordering Guide Pad and Depad Valve Bodies (Select One) CF8M Stainless steel CF3M Stainless steel Body Size and Coefficient (Select One from Each Category) Pad Valve Body NPS 1/2 / DN 1 NPS 1 / DN 2 NPS 2 / DN 0 = 0.4 = 1 = 20 = 0.2 = 2 = 4 = 4 = =. = Depad Valve Body NPS 1 / DN 2 NPS 2 / DN 0 = 3 = 20 = 6 = 3 = = 0 = 1 NPS 3 / DN 80 NPS 4 / DN 0 = 90 = = 11 = 200 = 140 = 280 Pad Inlet Connection (Select One) NPS 1/2 / DN 1 Body Size NPT threaded flange and nipple NPS 1 / DN 2 Body Size NPT threaded flange and nipple NPS 2 / DN 0 Body Size NPT threaded flange and nipple Tank Connection (Must Match or be Larger than the Largest Pad or Depad Valve Body Size) NPS 1 / DN 2, NPS 2 / DN 0, NPS 3 / DN 80, NPS 4 / DN 0, Diaphragm (Select One) Nitrile (NBR) Ethylenepropylene (EPDM - EPA) Fluorocarbon (FKM) Other Elastomers (Select One) Nitrile (NBR) Ethylenepropylene (EPDM - EPA) Fluorocarbon (FKM) Perfluoroelastomer (FFKM) Control Pressure Ranges - Pad Setpoint and Depad Setpoint (above Pad Setpoint) (Select One) Pad Setpoint: 0. to 3-inches w.c. / 1 to mbar Depad Setpoint: 4 to -inches w.c. / to 2 mbar Pad Setpoint: 0. to -inches w.c. / 1 to 1 mbar Depad Setpoint: 4 to 6-inches w.c. / to 1 mbar Pad Setpoint: 3 to 13-inches w.c. / to 32 mbar Depad Setpoint: 4 to 16-inches w.c. / to 40 mbar Pad Setpoint: 4 to -inches w.c. / to 2 mbar Depad Setpoint: 16 to 8-inches w.c. / 40 to 194 mbar Pad Setpoint: 0. to 1.4 psig / 0.03 to 0. bar Depad Setpoint: 0.2 to 1 psig / 0.02 to 0.0 bar Pad Setpoint: 1 to 2.2 psig / 0.0 to 0.1 bar Depad Setpoint: 0.2 to 2 psig / 0.02 to 0.14 bar S.A.M. (Single Array Manifold) Tank Connection for a Single Nozzle Tank Connection (Optional) Yes No Options (Select as many as Desired) Pad inlet pressure gauge, stainless steel Dwyer control pressure gauge, 1 psig / 1.0 bar max 2 Dwyer control pressure gauges (to span pad and depad setpoints) Control pressure gauge, above 4-inch w.c. / mbar range, 4-inch / 2 mm diameter (max pressure limited to 1% of gauge span) with shutoff valve, stainless steel 2 control pressure gauges, same as above (to span pad and depad setpoints) Sensing line purge, stainless steel Main line purge, stainless steel Dwyer XP pressure switch, aluminum housing Pad main line check valve for pad valve, stainless steel Diagnostic and inlet gauges (NPS 1 or 2 / DN 2 or 0 pad valve only) Note: Standard sense line connection is. Dwyer is a mark owned by Dwyer Instruments Inc. 1

16 Industrial Regulators Emerson Process Management Regulator Technologies, Inc. USA - Headquarters McKinney, Texas , USA Tel: Outside U.S Asia-Pacific Shanghai 2006, China Tel: Europe Bologna 40013, Italy Tel: Middle East and Africa Dubai, United Arab Emirates Tel: For further information visit Natural Gas Technologies Emerson Process Management Regulator Technologies, Inc. USA - Headquarters McKinney, Texas , USA Tel: Outside U.S Asia-Pacific Singapore 8461, Singapore Tel: Europe Bologna 40013, Italy Tel: Chartres 28008, France Tel: TESCOM Emerson Process Management Tescom Corporation USA - Headquarters Elk River, Minnesota 3-244, USA Tels: Europe Selmsdorf 23923, Germany Tel: Asia-Pacific Shanghai 2006, China Tel: The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser. Emerson Process Management Regulator Technologies, Inc., 2002, 2013; All Rights Reserved