Series 3240 Globe Control Valve Type 3241 (241) Pneumatic Control Valves Type 3241/3271 (241-1) and Type 3241/3277 (241-7)

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1 Series 32 Globe Control Valve Type 3241 (241) Pneumatic Control Valves Type 3241/3271 (241-1) Type 3241/3277 (241-7) Application Control valve for process engineering plants with industrial requirements. Nominal valve sizes ½ 10 ( 2 mm) Pressure ratings ANSI Class Temperatures 320 F +0 F ( 196 C +427 C) The control valves consist of a body with trim, bonnet pneumatic actuar, optionally with metal bellows or insulating extension. The valves may be also equipped with electric, electrohydraulic, or h-operated actuars, as well as control accessories other instrumentation. Features Modular design, rugged heavy duty construction, full range of body trim materials One-piece ultra-rigid valve bonnet yoke up size 6 Field retrofittable extension bonnets metal bellows seals Many configurations, e.g. Cryogenic or Lethal service Self-adjusting, live-loaded PTFE V-ring stuffing box Port-guided V-port asymetric plugs above C V 20 stard Excellent dynamic response high trim stability Self-locking seats, exchangeable for various C V values Low height, reversible, multi-spring/rolling diaphragm actuar NAMUR (IEC 534-6) accessory mounting stard Complete selection of actuars options, positioners control accessories Stard versions available combinations: see Table 1 Body ASTM Cast A 126 Cl. B, A 216 WCB, A 351 CF8M, alternatively Forged A105 or A 182 F316 End connections ANSI Class 125 with FF-Flanges, Class 2 Female threaded NPT, Class 1 or 300 with RF-Flanges Packing PTFE V-ring spring-loaded/self-adjusting, temperature range F 430 F ( 10 C +220 C) Trim equal percentage characteristic, metal--metal seal Fig. 1 Type 3241/3271 (Type 241-1); sizes ½ 10 Fig. 2 Type 3241/3277 (Type 241-7) Forged steel version; sizes ½ Options Body materials optionally A 352 LCB, LC3, A 351 CF8, CF3, Hastelloy, Monel, others On request Packing Adjustable PTFE, graphite or others On request Extension bonnet module For extreme temperatures F ( C) with PTFE packing Metal bellows seal module For complete seal between process atmosphere, with test connection PTFE packing Characteristic Linear (quick-opening on request) Trim materials Hardened, Hast. C, Monel, other versions Plug seal PTFE soft seal or lapped-in metal seal Flow dividers For noise reduction See Tech. Data Sheet T 81 Pressure-balanced version For high differential pressures Heating jacket, double stuffing box, micro trim, versions for sour gas according NACE On request DIN Versions See Data Sheet T JIS On request Fig. 3 Type 3241/3271 (Type 241-1) with NPT thread; sizes ½ Actuar combinations Type 3241/3271 (241-1) (Fig. 1) With Type 271 Actuar (see T 8310) Type 3241/3277 (241-7) (Fig. 2) With Type 3277 Actuar for integral positioner attachment (see T 8311) Type 3241/3273 (241-3) With Type 3273 (273) Hoperated Actuar (see T 8312) Type 3241/3274 (241-4) With Type 3274 Electrohydraulic Actuar (see T 83) Associated Information Sheets Valves T 00 Actuars T 8300 Accessories T 83 Edition July 1998 ANSI Version Technical Data Sheet T 12

2 Fail-safe action Depending on the arrangement of the diaphragm plate springs within the actuar, the control valve offers two different fail-safe actions upon loss of air supply (see Technical Data Sheets T 8310 T8311 for details): Actuar extends stem (fail-close) The actuar springs close the valve upon loss of air supply. Actuar retracts stem (fail-open) The actuar springs open the valve upon loss of air supply. Notes on the differential pressure tables 4a 5d The differential pressure tables listed have been prepared under the following conditions: Process medium flow directed against the closing direction of the valve plug (flow--open valve) Version with PTFE stuffing box With the maximum differential pressures specified, the leakage rates specified in Table 1 (ANSI/FCI Class IV) are not exceeded. The differential pressure specified must not exceed the pressure rating (see Pressure-Temperature Diagram). For valve sizes ½ 3" with actuars containing an effective diaphragm area of 700 cm 2 (108 in 2 ), the maximum permissible supply pressure is 60 psi (4 bar). For versions with metal bellows seal, soft-sealed plugs p 2 0 psi (0 bar), consult SAMSON. Fig. 5 Type 3241 Globe Valve, forged steel version (up size ) with metal bellows seal module Fig. 4 Type 3241 Globe Valve, sizes with Type 3271 Pneumatic Actuar Fig. 6 Type 3241 Globe Valve size 8 10'' 2 T 12

3 Table 1 Technical data Nominal valve size in ½... 2 ½ ½, 1, 1½, 2, 3 ½ ½, 1, 1½, 2, 3 Body material, ASTM (also see Table 2) A 126 Class B A 216 Grade WCB A 105 A 351 Grade CF8M A 182 Grade F316 End connection Flange Thread Flange Flange Form of connection Flat Face NPT-F Raised Face 1) Raised Face 1) Pressure rating, ANSI (B16.34) Class or or Face--face dimension According ANSI/ISA S (Flanges according ASME/ANSI B16.5) Seat/plug seal Metal, soft or lapped-in metal Packing design V-ring, spring-loaded, self-adjusting Flow direction (stard) Flow open (FTO) Seat bore diameter, rated travel, C V/K VS See Table 3 Characteristic Equal percentage or linear Terms for valve sizing according ISA- S75.02 IEC , parts F L = 0.95, x T = 0.75 (at 75% rated travel) Rangeability :1 for sizes ½... 30:1 for sizes 2½ Dimensions Weights See Tables 7, 8 9 Temperature ranges F ( C) Max. operating pressures acc. pressure-temperature diagram (see Information Sheet T 00-2) Body without insulating section Body with Insulating section Bellows section F ( C) Short F ( C) F ( C) F ( C) Long F ( C) Short F ( C) F ( C) F ( C) Long F ( C) Valve plug Unbalanced Metal sealing F ( C) Valve plug Soft sealing F ( C) Balanced With PTFE ring F ( C) With graph. ring F ( C) Leckage rate class according ANSI/FCI F70-2 (IEC Part 4) Metal seal Class IV Unbalanced PTFE soft sealed Class VI Lapped-in metal s. Class VI (IEC: IV-S2 For 4 or above, Class IV-S1) Balanced Metal sealed With PTFE balancing seal: Class IV With graphite balancing seal: Class III Metal-sealed plug Fig. 7 Trim versions PTFE soft-sealed plug Flow divider St I, for cavitation protection with liquids noise reduction with liquids, gases steam Flow divider St III, for noise reduction with gases steam 3 T 12

4 Fig. 8 Type 3241 Globe Valve components Nominal valve size ½ 6'' Metal bellows seal module Nominal sizes ½ 6'' Nominal size 8 10 (cast body available only) Table 2 Materials (WN = Material Number according DIN) Item Description ASTM/AISI Material Description 1 Body (LC3, CF3, CF8, others, on request) Gray Iron Cast A 126 Cl.B Carbon steel Cast A 216 WCB Forged A 105 Carbon steel Cast A 352 LCB Stainless steel Cast A 351 CF8M Forged A 182 F316 Monel (WN ) / Hastelloy C (WN ) 2 Bonnet A 105 A 3 LF2 A 182 F316 Monel/Hastelloy C 3 Yoke, (8, 10 ) A 395 (WN ) (per application) 4 Seat 1) AISI 410 (WN 1.06) AISI 316Ti (WN ) Monel/Hastelloy C 5 Plug 1), 2) AISI 410 (WN 1.06) AISI 316Ti (WN ) Monel/Hastelloy C 6 Plug stem AISI 410 (WN 1.06) AISI 316Ti (WN ) Monel/Hastelloy C 7 Guide bushing AISI 430F (WN ) nitrided AISI 316Ti (WN ) nitr. Monel/Hastelloy C 8 Packing nut AISI 316Ti (WN ) with carbon insert (guide) Monel/Hastelloy C 9 Coupling nut AISI 430F (WN ) 10 Counter nut AISI 430F (WN ) 11 Spring AISI 301 (WN ) Monel/Hastelloy C 12 Washer AISI 316Ti (WN ) Monel/Hastelloy C 13 Body stud A 307 B A 193 B7 A 320 L7 A 193 B8M Cl.2 (per application) 14 Hex nut A 307 B A 193 B7 A 194 Gr.4 A194 8M (per application) Packing PTFE-carbon composite (types A, B, C, H, W, others on request) 17, 39 Gasket Graphite laminate with AISI 316Ti (WN ) core Graph. w/hast.c 19 Packing spacer (2.5, ) AISI 316Ti (WN ) Monel/Hastelloy C 22 Extension A 105 A 3 LF2 A 182 F316 Monel/Hastelloy C 24 Guide bushing AISI 316Ti (WN ) Hastelloy C 30 Lock washer AISI 304 LN (WN ) Hastelloy C 32 Hex bolt A 193 B7 A 320 L7 A 193 B8M C12 (per application) 33 Hex nut A 193 B7 A 194 Gr.4 A 194 8M (per application) 37 Extended stem/bellows AISI 316Ti (WN ) Hastelloy C 41 Bellows retaining nut AISI 316Ti (WN ) Monel/Hastelloy C 42 Test connection nut AISI 316Ti (WN ) Monel/Hastelloy C 26, 84 Label, indicar, bracket, screw, nameplate, rivets AISI 304 (WN ) 1) Seats metal-sealing plugs also available with Stellite 6 facing; for nominal sizes 4, plugs up SB 48 mm also available of pure Stellite 6. Seats plugs of Monel (WN ), Hastelloy C (WN ), hard-metal (e.g. tungsten carbide, WN ) or others on request. 2) Soft-sealed plug version, with PTFE-glass fiber composite. Pressure-balanced versions with flow dividers, materials on request. 4 T 12

5 Table 3 C v K vs values Table 3a Overview C v C v I C v III Seat ID, Ø in Travel in K vs K vs I K vs III Seat ID, Ø mm Travel mm Table 3b Stard versions (without flow divider) Versions in shadowed fields are also available with balanced valve plugs. C v K vs Size in mm ½ ¾ ½ 2 2½ Table 3c Versions with St I flow divider (C v I/K vs I) Versions in shadowed fields are also available with balanced valve plugs. C v I K vsi Size in mm ½ ¾ ½ 2 2½ Table 3d Versions with St III flow divider (C v III/K vs III) Versions in shadowed fields are also available with balanced valve plugs. C v III K vsiii Size in mm ½ ¾ ½ 2 2½ T 12

6 Table 4 Differential pressure tables Unbalanced valve plugs Values specified in the shadowed columns correspond the stard application, i.e. rated travel Differential pressures specified in the white columns apply maximum pre-stressed springs (max. bench setting range). Differential pressures enclosed in parentheses refer mid-travel position. Observe the notes on the differential pressure tables, listed on page 2. Table 4a Permissible differential pressures p Pressures in psi For actuars employing fail-safe action: Actuar extends stem Valve closed at supply pressure 0 psi Bench range (psi) for actuars with effective area (in 2 ): ) , 54, ( ) 108 ( ) ( ) (39...) Required supply pressure (psi) DN Actuar C v K vs in mm in 2 cm 2 ½ 1 ½ ¾ 1½ ½ p with p 2 = 0 psi (5) (5) (5) (5) (5) (5) (5) (333) (7) (520) (5) (305) (320) (475) , 6, ) Not for actuar with effective area 18.5 (120 cm 2 ) 6 T 12

7 Table 4b Permissible differential pressures p Pressures in bar For actuars employing fail-safe action: Actuar extends stem Valve fully closed at supply pressure 0 bar Bench range (bar) for actuars with effective area (cm 2 ): ) ,3, ( ) 700 ( ) ( ) ( ) Required supply pressure (bar) Size Actuar C v K vs in mm in 2 cm 2 ½ 1 ½ ¾ 1½ 1½ 2½ p with p 2 = 0 bar () () () () () () () (23) (35) (36) () (21) (22) (33) , 6, ) Not for actuar with effective area 120 cm 2 (18.5 in 2 ) 7 T 12

8 Table 4c Permissible differential pressures p For actuars employing fail-safe action: Actuar retracts stem Valve closed at required supply pressure Table 4c Pressures in psi Bench range (bar/psi) for actuars with 217 ( ) effective area (in 2 ): 434 (4... ) Required supply pressure (bar/psi) Size C v K vs Actuar in mm in 2 cm 2 p with p 2 = 0 psi ½ 1 ½ ¾ 1½ 1½ 2½ T 12

9 Tables 4d Permissible differential pressures p For actuars employing fail-safe action: Actuar retracts stem Valve closed at required supply pressure Table 4d Pressures in bar Bench range (bar/psi) for actuars with 10 ( ) effective area (cm 2 ): 20 ( ) Required supply pressure (bar/psi) Size C v K vs Actuar p with p 2 = 0 bar in mm in 2 cm 2 ½ 1 ½ ¾ 1½ 1½ 2½ T 12

10 Table 5 Differential pressure tables Balanced valve plugs with PTFE balancing seal (without bellows) Values specified in the shadowed columns correspond the stard application, i.e. rated travel Differential pressures specified in the white columns apply maximum pre-stressed springs (max. bench setting range). Fail-safe action: Actuar extends stem Valve closed at supply pressure 0 psi (0 bar) Fail-safe action: Actuar retracts stem Valve closed at required supply pressure Tables 5a 5b Permissible differential pressures p Pressures in psi Table 5a Actuar extends stem Table 5b Stem retracts Bench range psi Required supply pressure psi Size Actuar C v K vs p with p 2 = 0 psi in mm in 2 cm 2 2½ Tables 5c 5d Permissible differential pressures p Pressures in bar Table 5c Actuar extends stem Table 5d Stem retracts Bench range bar Required supply pressure bar Size Actuar C v K vs p with p 2 = 0 bar in mm in 2 cm 2 2½ Fig. 9 Version with pressure-balanced plug bonnet 10 T 12

11 Table 6 Differential pressure tables Balanced valve plugs with PTFE balancing seal with metal bellows seal Values specified in the shadowed columns correspond the stard application, i.e. rated travel Differential pressures specified in the white columns apply maximum pre-stressed springs (max. bench setting range). Differential pressures enclosed in parentheses refer mid-travel position. Fail-safe action: Actuar extends stem Valve closed at supply pressure 0 psi (0 bar) Fail-safe action: Actuar retracts stem Valve closed at required supply pressure Tables 6a 6b Permissible differential pressures p Pressures in psi Table 6a Actuar extends stem Bench range psi ( ) Table 6b Stem retracts Required supply pressure psi Size Actuar C v K vs p with p 2 = 0 psi in mm in 2 cm 2 2½ (5) (5) Tables 6c 6d Permissible differential pressures p Pressures in bar Table 6c Actuar extends stem Bench range bar ( ) Table 6d Stem retracts Required supply pressure bar Size Actuar C v K vs p with p 2 = 0 bar in mm in 2 cm 2 2½ () () T 12

12 Table 7a Dimensions of the stard versions in inches Globe valve Size in ½ ¾ 1 1½ 2½ NPT ½ ¾ 1 1½ 2 125/1 in Length L Class 300 in Length L1 Class 2 in H1 700 cm 2 in actuars with 10 cm 2 in 31.7 effective area: 20 cm 2 in 41.7 H2 (approximately) in H2 (approx.), forged steel in Pneumatic actuar Size in Diaphragm D in H in H3 1) in Thread M 30 x 1.5 M 60 x 1.5 M x 2 a (for Type 3271 Actuar) 2) NPT 1 8 NPT 1 4 NPT 3 8 NPT 3 4 NPT 1 a2 (for Type 3277 Actuar) 2) NPT 3 8 1) Minimum clearance for actuar disassembly (for both Types ) 2) ISO G (straight) thread also available, on request Table 8a Weights in lbs Globe valve Size inch ½ ½ 2½ Weight, without actuar lbs Size Pneumatic actuar in Weight of Type 271 lbs Weight of Type 3277 lbs H3 ØD a H3 H ØD a H3 ØD a H H H1 H1 a2 H1 H2 L H2 L H2 L NPT L1 Type 3241/3271 ½ 6 Type 3241/ Type 3241/3277 ½ 6 Type 3241 NPT ½" 2" 12 T 12

13 Table 7b Dimensions of the stard versions in mm Globe valve Size in ½ ¾ 1 1½ 2½ mm NPT ½ ¾ 1 1½ 2 125/1 mm Length L Class 300 mm Length L1 Class 2 mm H1 700 cm 2 mm actuars with 10 cm 2 mm 5 effective area: 20 cm 2 mm 1060 H2 (approximately) mm H2 (approx.) forged steel mm Pneumatic actuar cm Diaphragm D mm H mm H3 1) mm Thread M 30 x 1.5 M 60 x 1.5 M x 2 a (for Type 3271 Actuar) 2) NPT 1 8 NPT 1 4 NPT 3 8 NPT 3 4 NPT 1 a2 (for Type 3277 Actuar) 2) NPT 3 8 1) Minimum clearance for actuar disassembly (for both Types ) 2) ISO G (straight) thread also available, on request Table 8b Weights in kg Globe valve Size in ½ ½ 2½ mm Weight, without actuar kg Pneumatic actuar cm Weight of Type 3271 kg Weight of Type 3277 kg H3 ØD a H3 H ØD a H3 ØD a H H H1 H1 a2 H1 H2 L H2 L H2 L NPT L1 Type 3241/3271 ½ 6 Type 3241/ Type 3241/3277 ½ 6 Type 3241 NPT ½" 2" 13 T 12

14 Table 9 Dimensions weights of special versions with insulating section or metal bellows seal (without actuar) Table 9a Nominal sizes ½ 6 NPT ½ in inches lbs Globe valve Size/NPT in ½ ¾ 1 1½ 2½ 4 6 Height H4 Short insul. or bell. sect. Long. insul. or bell. sect. in in Approximate weight lbs Table 9b Nominal sizes 8 10 in inches lbs Version with Insulating section Metal bellows section Size Pneumatic actuar in H4 for nom. sizes 8, 10 in Approximate weight in lbs for nominal sizes Table 9c Nominal sizes ½ 6 NPT ½ in mm kg in ½ ¾ 1 1½ 2½ 4 6 Globe valve Size/NPT mm Short insul. mm or bell. sect. Height H4 Long. insul. mm or bel. sect. Approximate weight kg Table 9d Nominal sizes 8 10 in mm kg Version with Insulating section Metal bellows section Pneumatic actuar cm H4 for sizes 200, 2 mm Approximate weight in kg for nominal sizes Dimensions weights of versions with heating jacket are available on request. Type 3241 (241) Globe Valve with insulating section or metal bellows seal H4 H4 H4 Sizes ½ 6 Sizes 8 10 NPT ½ 14 T 12

15 Pressure-Temperature Diagram According ASME/ANSI B16.34, Cast Iron according B16.1 (Flanged) B16.4 (NPT) For reference only. For exact values, consult the respective ANSI stard. [bar] 60 [psi] 900 A 126 B A 216 WCB A 351 CF8M 700 Class Class Class 2 Class 1 10 Class 125 Class 1 [ F] t Long insulating section Long bellows section - Short insul. section Without insulating section Short insulating section [ C] Short bellows section Installation Arbitrary mounting orientation. If the mounting orientation is inclined, the actuar valve must be supported. Observe the clearance is adequate allow actuar, bonnet plug removal (H3 in the table of dimensions). Direction of flow as indicated by the arrow on the valve body Registered Trade Marks Monel, Hastelloy, Stellite are referred within this publication with the understing that the names are Registered Trade Marks of their respective owners, which include Cabot Wrought Products, International Nickel Co., Carpenter Technology, or the rightful owner, in the past as well as in future cases. T 12

16 Ordering information Globe Control Valve Type 3241 (241): Nominal valve size 1) Body material ASTM Pressure rating ANSI Class C V -/K VS -value 1) Characteristic Options/Special version Special testing/preparation Actuar: Type Ordering information 5) Fail-safe position Operating conditions 2) : Process fluid 3) Flow rate 4) Inlet pressure Outlet pressure 4) Temperature Maximum shuff p for actuar sizing Air/power supply available for actuar, max./min. Accessories: Positioner, Switches, Transmitter, Solenoid valve, Filter/regular, Bypass, Volume/pressure amplifier, Lockup relay Type Ordering information 5) Tubing fittings type/material Other instrumentation: Controllers, Sensors, Transmitters, Transducers, Converters Type Ordering information 5) Notes: 1) 2) 3) 4) 5) If nominal size or C V -/K VS -value unknown, specify operating conditions Specify system of units, pressures: specify gauge or absolute Provide minimum, normal, maximum values, where applicable. Gases, vapors: specify flow rate under stard or actual conditions Non-stard process fluids, specify additionally: Density, Specific gravity, or Molecular weight Liquids: Vapor pressure, Critical pressure, Viscosity Gases, Vapors: Ratio of specific heats, Compressibility facr Or, specify required valve flow coefficient C V,K VS Ordering information per the applicable Technical Data Sheet. Specifications subject change without notice. SAMSON CONTROLS INC Riviera Drive Markham Ontario Canada L3R 5J7 SAMSON CONTROLS INC Cedar Boulevard Baywn Texas USA Tel. (905) Telefax (905) Tel. (281) Telefax (281) T 12 T 12 CA