PACIFIC VALVES BOLTED BONNET API 600 By Subject Product Overview...2-4 Gate Valves Major Features...5 Gate Valves Optional Features...6 Materials of Construction: Gate Valves...7 Gate Valves Product Line...8-10 Globe Valves Major Features...11 Globe Valves Optional Features...12 Materials of Construction: Globe Valves...13 Globe Valves Product Line...14-17 Globe Stop Check Valves Major Features...18 Globe Stop Check Valves Product Line...19-21 Swing Check Valves Major Features...22 Swing Check Valves Optional Features...23 Materials of Construction: Swing Check Valves...24 Swing Check Valves Product Line...25-27 Materials of Construction: Tilting Disc Check Valves...28 Tilting Disc Check Valves Product Line...29-31 Service Recommendations...32 Materials and Trims...33
Product Overview GATE VALVES Gate valves are the most commonly used shutoff valve in the industry today. They are used where minimum pressure drop and bi-directional on-off service is required. Gate valves are not designed for throttling service. Prolonged use in the partially open position will generally damage seating surfaces. Gate valves are available with a number of wedge configurations (solid, flexible and split) to best meet the specific service conditions (see page 6). Gate valves normally are handwheel operated, but are also available with gearing, electric motor actuators, or cylinder (pneumatic or hydraulic) actuators for remote operation. See Actuators and Accessories section for more detail. GLOBE VALVES Globe valves are used where throttling or both throttling and shutoff are required. They can also be used for on-off service, but because of high pressure drop, this is generally confined to applications where the valve is normally closed and pressure drop is not important when the valve is open. Normally globe valves are installed with flow under the disc, but under certain conditions flow over the disc may have advantages. Standard globe valves, because they are designed for both throttling and shutoff, should not be used for prolonged throttling at less than 10% open. Internal damage can occur. Using a smaller valve or V-port trim to increase the percent open will often solve this problem. V-port trim has a more linear throttling curve than plug or ball discs, but none of these trims are recommended for continuous severe throttling which may require using a control valve. Pacific Valves will be glad to advise you on your application. Globe valves are available with a complete range of manual or remote actuators. See Actuators and Accessories section for more detail. Selection TYPE AND SIZE Select the best type of valve for the intended service (gate, check, etc.). Gate and globe valves are available with a selection of wedge or disc configurations for different services. Valves may be sized to match existing lines, but swing check and stop-check valves should also be sized according to flow conditions for maximum service life. RATINGS Valves must only be used in operating conditions within the appropriate ANSI pressure-temperature ratings for valve class rating and body/bonnet material (see Technical Data section). TEMPERATURE LIMITATIONS Only use valves within the temperature limitations of their construction. Temperature limitations of body/bonnet materials, trim, bolting, packing and gaskets must all be considered. Special construction for extended service temperatures are available on application. MATERIAL AND SERVICE Cast steel bolted bonnet valves are available in a variety of body/bonnet materials and trims. General service recommendations for body/bonnet materials appear on page 37 and for trims on page 38. Specified materials should be compatible with the service. -2-
Product Overview GLOBE CHEC VALVES Stop check valves are globe valves with the added ability to prevent flow reversal. In the open position, they function as a lift check valve. In the closed position, they are seated by thrust from the stem like a globe valve. Stop check valves must be installed with the stem vertical and flow from below the disc. When the stem is opened, pressure from below the disc opens the valve and flow proceeds until it reverses. Uses and limitations of stop check valves included in this section are the same as lift check valves, except that they have this added ability to provide positive shutoff in either direction when the stem is in the closed position. Most common use of this type valve is to replace an isolation valve (gate, globe or angle) and a check valve on the discharge of pumps or to protect equipment from reverse flow from a common header. Pacific stop check valves are available with a complete range of manual or remote actuators covered in the Actuators and Accessories section of this catalog. SWING CHEC VALVES Swing check valves are used to prevent flow reversal in piping systems. They are suitable for service in horizontal or vertical (flow up through valve only) piping runs. Swing check valves have low pressure drop and are best suited for moderate velocity applications. Correct sizing of swing check valves is important (see page 25). Either too low a line velocity or too high a velocity can damage valve internals and shorten valve life. Service in systems involving rapid and frequent flow reversals, pulsation or turbulent flow should be avoided. Relocating swing check valves within the piping system can often minimize or eliminate problems caused by this type of application. Pacific Valves will be glad to advise you on your application. PACIFIC VALVES CODES AND STANDARDS Years of research and development, together with practical experience in reconditioning all types of valves, have gone into the design and manufacture of Pacific valves. High quality material and workmanship, combined with the modern manufacturing methods used in producing these valves, is your assurance of a dependable, uniform product. Pacific valves are designed in accordance with the applicable requirements of the latest edition of the following standards: API American Petroleum Institute MSS Manufacturers Standardization Society of the Valve and Fittings Industry ANSI American National Standards Institute ASME American Society of Mechanical Engineers -3-
Product Overview Tilting Disc Check Valves Tilting disc check valves are designed to handle applications requiring higher velocities and pressures. With seat rings welded into the valve bodies, these valves prevent damage due to turbulence and avoid damage from corroded seats. Perfectly cleaned before assembly, the valves seat rings are forged or rolled into one piece and heat treated to obtain the required surface hardness. Tilting disc check valves are noted as non-slam check valves for their quick and quiet closing capability. Available in Class 150, 300 and 600, these valves feature a double offset pivot (hinge pin) which reduces wear between the seat and seal while the valve is in motion. Line fluid flows both over and under the disc of each valve, cushioning closure by the line fluid itself. The body-cover joints of these Pacific valves are machined male and female fits for all class types. -4-
Gate Valves Major Features Pacific cast steel bolted bonnet gate valves are designed and manufactured to provide maximum service life and dependability. All gate valves are full ported and meet the design requirements of AP1-600 and ANSI B16.34. Valves are available in a complete range of body/ bonnet materials and trims. Rising Stem easily visible open-close indication. Grease Fittings yokesleeves equipped with fittings to minimize wear and operating torque. Handwheel large handwheels for easy operation. Also available with gearing, motor actuators or cylinder actuators for more difficult services. Yokesleeves furnished in ductile Ni-resist or aluminum-bronze to reduce operating torque. Swing Bolts facilitate easier maintenance and packing replacement. Stuffing Box optional lantern rings and grease injectors are available. Backseat machined bonnet stem bushing provides back-up stem seal. Bonnet Joint joint design varies with ANSI class rating. Gland two-piece gland/gland flange is self-aligning to eliminate stem damage from cocked gland. Stem all Pacific wedge gate valves are provided with upset forged T-head stems. By forging the T-head, the stem at the stem-wedge connection is stregthened. This design also allows the wedge to self-align, eliminating the possibility of a bent stem jamming the wedge. Body full ported, heavy duty body with API 600 wall thickness for maximum service life. Provided with bosses for optional by-passes or drains. Seat Rings separate heavy duty, full ported rings for easy maintenance. Wedge heavy pattern, fully guided wedge precision fitted to body seats for maximum shutoff. Available in H.I.S. design. End Connections flanged end options are raised face smooth finish or ring type joint. Range of Materials Standard body/bonnet materials include nine grades of carbon, low alloy and stainless steels. For special applications they can be supplied in other grades of alloy and stainless steel. There s a full range of trim materials to match any service. Optional packing and gasket materials are available for a full range of service conditions. Actuator Flexibility All valves are available with handwheels, gearing, electric motor actuators or pneumatic or hydraulic cylinder actuators. Easy Maintenance By providing a choice of wedge types, the valve can be matched up with the service conditions, thus enhancing operability and lessening the possibility of binding. Full body wedge guides assure wedgeto-seat alignment. Yokesleeve with needle bearings reduce operating torque for easy manual operation. Easy Operation Threaded or welded seat rings are easily accessible for repair or replacement. Packing swing bolts on most valves simplify packing replacement. All Pacific bolted bonnet designs facilitate fast disassembly. Longer Life Rugged construction provides years of reliable service. Forged T-head stem/ wedge design permits the wedge to selfalign for extended seat life. A two piece packing gland prevents cocking and stem damage. -5-
Gate Valves Optional Features Choice of Wedge Types Pacific cast steel bolted bonnet gate valves are available with a full selection of wedge types to match operating service conditions. Specify the type best suited to your service conditions. This is the most common wedge type. It is also the strongest, simplest and most economical of the various wedge types. The advantages of this wedge are that it is highly resistant to corrosion and vibration. Disadvantages are that it is not self-compensating to seat distortion caused by high temperature thermal expansion or bending moments applied to the valve by piping loads which may cause the wedge to stick in the seats. The flex wedge is cast or machined with a circumferential groove to allow the seating faces to move independently and adjust to movement of the body seats. It is used where line loads or thermal expansion of the system is likely to distort the seat face in the valve. The flex wedge is especially useful to prevent sticking where valves are closed when hot and opened when cold. This type of wedge is ideally suited for steam or other high temperature services. Solid Wedge Flex Wedge The split wedge provides complete flexibility between the two halves of the wedge to compensate for seat distortion, especially in light weight, low pressure valves. This style is also used for high pressure gas or corrosive services. It is not recommended for high velocity flow or services where suspended particles can foul the wedge. Because of the complexity of this design, it is generally more expensive than the solid or flex designs. For services that require bubble tight shutoff, the High Integrity Shutoff (HIS) design is the best option. This fire safe design provides a zero leakage barrier on both upstream and downstream seats. A full range of trim and shell materials are available for corrosive service and temperatures up to 450 F. Split Wedge High Integrity Shutoff Wedge Standard Bonnet Joints Body/bonnet joints on Pacific valves are designed for rugged services with a more than adequate number of bonnet bolts. The standard joint varies, depending on valve class. These standard joints are shown. Class 150 The standard, flat, oval bonnet joint is the simplest and most economical configuration for low pressure services and is required to maintain ANSI face-to-face dimensions on Class 150 valves sizes 4"-36". Our standard gasket is corrugated metal, but flat gaskets of other materials are available when specified. 1½" thru 3" valves are furnished with a circular male and female bonnet joint and spiral wound gasket. Class 300 The circular male and female bonnet joint are self- aligning and well suited for intermediate pressure classes. Our standard gasket is spiral wound. Valves in these classes are also available with double jacketed or ring joint gaskets when specified. Class 600-1500 The circular ring joint bonnet seal has proven to be the best bolted high pressure bonnet joint available. The ring joint is self-aligning; the gasket may be reused unless it is physically damaged. Valves in these classes are also available with spiral wound gasket bonnet joints when specified. -6-
Materials of Construction: Gate Valves 54 31 5 7 16a 52 46 16b 30 98 11 10 50 56 77 35 36 49 32 55 70 71 Part Name Material 54 Handwheel Nut Carbon Steel 50 Handwheel Malleable or Ductile Iron 31 Yokesleeve Ductile Ni-Resist or Aluminum-Bronze 56 Yokesleeve Jam Nut Carbon Steel 5 Grease Fitting Carbon Steel 77 Yoke Carbon Steel 16a Eyebolt Nut Carbon Steel 36 Gland Flange Carbon Steel 52 Eyebolt Carbon Steel 35 Gland 300 Series SS 49 Eyebolt Pin Carbon Steel Trim Parts 32 Bonnet Stem Bushing 70 Stem (See page 33 for Trim Materials) 71 Wedge (See Note 1) 11 Seat Ring (See Note 1) See below for balance Note 1: Wedge and seat ring may either be solid facing material or a base material equal to or better than the body/bonnet material with facing as shown. Part Name Carbon Steel LCB LC3 WC6 WC9 46 Packing (H) Graphitic PTFE (A) PTFE (A) Graphitic Graphitic 30 Bonnet ASTM A216 Gr WCB ASTM A352 Gr LCB ASTM A352 Gr LC3 ASTM A217 Gr WC6 ASTM A217 Gr WC9 55 Bonnet Gasket Class 150 (F) Mild Steel Corr. 304 SS Corr. 304 SS Corr. 304 SS Corr. 304 SS Class 300 Steel (G) 304 SS (G) 304 SS (G) 304 SS (G) 304 SS (G) Class 600 & up Steel ring 304 SS ring 304 SS ring 304 SS ring 304 SS ring 16b Bonnet Stud Nuts ASTM A194 Gr 2H ASTM A194 Gr 7 ASTM A194 Gr 7 ASTM A194 Gr 2H ASTM A194 Gr 2H 98 Bonnet Studs ASTM A193 Gr B7 ASTM A320 Gr L7 ASTM A320 Gr L7 ASTM A193 Gr B7 (B) ASTM Al93 Gr B7 (B) 10 Body ASTM A216 Gr WCB ASTM A352 Gr LCB ASTM A352 Gr LC3 ASTM A217 Gr WC6 ASTM A217 Gr WC9 Part Name C5 C12 CA6NM CF8C CF8M 46 Packing (H) Graphitic Graphitic Graphitic Graphitic Graphitic 30 Bonnet ASTM A217 Gr C5 ASTM A217 Gr C12 ASTM A487 Gr CA6NM ASTM A351 Gr CF8C ASTM A351 Gr CF8M 55 Bonnet Gasket Class 150 (F) Corr. 304 SS Corr. 304 SS Corr 304 SS Corr. 347 SS Corr. 316 SS Class 300 304 SS (G) 304 SS (G) 304 SS (G) 347 SS (G) 316 SS (G) Class 600 & up 304 SS ring 304 SS ring 304 SS ring 347 SS ring 316 SS ring 16b Bonnet Stud Nuts ASTM A194 Gr 2H (C) ASTM A194 Gr 2H (C) ASTM A194 Gr 2H ASTM A194 Gr 2H (D) ASTM A194 Gr 2H (E) 98 Bonnet Studs ASTM A193 Gr B7 (C) ASTM A193 Gr B7 (C) ASTM A193 Gr B7 ASTM A193 Gr B7 (D) ASTM A193 Gr B7 (E) 10 Body ASTM A217 Gr C5 ASTM A217 Gr C12 ASTM A487 Gr CA6NM ASTM A351 Gr CF8C ASTM A351 Gr CF8M (A) Limits std. const. to +500 F. (B) Limits std. const. to +1000 F. Special const. for max. temp. between +1000 F and +110 F available on application. (C) Limits std. const. to +1000 F. Special const. for max. temp. between +1000 F and +1200 F available on application. (D) Limits std. const. to temp. between -20 F and +1000 F Special const. for temp. between +1000 F and +1200 F available on application. (E) Limits std. const. to temp. between -20 F and +1000 F. Special const. for lower temp. or temp. between +1000 F and +1200 F available on application. (F) 1½", 2" & 3" Class 150 valves use a spiral wound graphite gasket the same size as Class 300 valves. (G) Spiral wound construction. (H) For services over 850 F Pacific Valves recommends special high temperature packing. Please consult factory when ordering. THE RIGHT IS RESERVED TO CHANGE OR MODIFY PRODUCT DESIGN OR CONSTRUCTION WITHOUT PRIOR NOTICE AND WITHOUT INCURRING ANY OBLIGATION TO MAE SUCH CHANGES AND MODIFICATIONS ON PRODUCTS PREVIOUSLY OR SUBSEQUENTLY SOLD. -7-
Gate Valves ANSI Class 150 Fig. No. 150 solid wedge 1½"-36" Fig. No. 150-BTT H.I.S. wedge 2"-24" Fig. No. 2150 split wedge 2"-24" Fig. No. 2155 flexible wedge 2½"-36" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of solid, flex or split wedge design Forged T-head stem Flanged or butt weld ends OS&Y construction Full port design Renewable seat rings seal welded Full length wedge guides Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and AP1-600 Optional elastomer seals for High Integrity Shutoff Fig. No. 150 DIMENSIONS and WEIGHTS FIGURE NUMBERS: 150, 2150 (3) & 2155 VALVE SIZE (inches) Dim Description 1.5 4 2 4 2.5 4 3 4 4 2 6 2 8 10 12 14 16 18 20 24 30 36 A in. 6.50 7.0 7.5 8.0 9.0 10.5 11.5 13.0 14.0 15.0 16.0 17.0 18.0 20.0 24.0 28.0 mm 165 178 191 203 229 267 292 330 356 381 406 432 457 508 610 711 A in. 6.50 8.5 9.5 11.13 12.0 15.88 16.5 18.0 19.75 22.5 24.0 26.0 28.0 32.0 36.0 40.0 1 End to End mm 165 216 241 283 305 403 419 457 502 572 610 660 711 813 914 1016 A in. 7.00 7.5 8.0 8.5 9.5 11.0 12.0 13.5 14.5 15.5 16.5 17.5 18.5 20.5 24.5 28.5 2 RTJ mm 178 191 203 216 241 279 305 343 368 394 419 445 470 521 622 724 in. 12.76 14.45 15.63 18.03 22.05 30.04 37.80 45.91 53.90 59.65 71.80 74.80 83.50 98.50 126.00 140.20 Center to Top Open mm 324 367 397 458 560 763 960 1166 1369 1515 1824 1900 2124 2502 3200 3561 M in. 10 10 10 10 10 14 14 24 24 24 24 28 28 34 34 34 Handwheel Dia. mm 254 254 254 254 254 356 356 610 610 610 610 711 711 864 864 864 lbs. 65 68 119 128 135 232 352 593 807 1053 1337 1898 2228 3350 6145 8170 kg 29 31 54 58 62 106 160 269 366 477 606 860 1010 1518 2787 3700 lbs. 61 64 115 117 127 219 338 553 682 899 1125 1704 2023 3171 5311 7790 kg 28 29 52 53 58 100 154 251 309 408 510 772 917 1437 2409 3534 M A A 2 M A 1 Notes: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. 2. For the following valves with HIS option the center to top dimensions (open and closed) must be increased approximately 2 inches, consult factory for exact dimensions. 4 inch, Class 150 6 inch, Class 150 3. Consult factory for centerline to top dimensions (open and closed) for split wedge valves. 4. 1½" thru 3" furnished with round bonnet configuration. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -8-
Gate Valves ANSI Class 300 Fig. No. 350 solid wedge 1½"-36" Fig. No. 350-BTT H.I.S. wedge 2"-24" Fig. No. 2350 split wedge 2"-24" Fig. No. 2355 flexible wedge 2½"-36" Fig. No. 350 FEATURES Full range of body/bonnet materials Full range of trim materials Choice of solid, flex or split wedge design Forged T-head stem Flanged or butt weld ends OS&Y construction Full port design Renewable seat rings seal welded Full length wedge guides Spiral wound graphitic bonnet gasket Male and female bonnet joint Anti-friction ball bearing yoke sleeve Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and AP1-600 Optional elastomer seals for High Integrity Shutoff DIMENSIONS and WEIGHTS FIGURE NUMBERS: 350, 2350 (3) & 2355 VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 2 6 8 10 12 14 16 18 20 24 30 36 A A 1 A 2 M End to End RTJ Center to Top Open Handwheel Dia. in. 7.5 8.5 9.5 11.13 12.0 15.88 16.5 18.0 19.75 30. 33.0 36.0 39.0 45.0 55.0 68.0 mm 191 216 241 283 305 403 419 457 502 762 838 914 991 1143 1397 1727 in. 7.5 8.5 9.5 11.13 12.0 15.88 16.5 18.0 19.75 30.0 33.0 36.0 39.0 45.0 55.0 68.0 mm 191 216 241 283 305 403 419 457 502 762 838 914 991 1143 1397 1727 in. 8.0 9.13 10.13 11.75 12.63 16.5 17.13 18.63 20.38 30.63 33.63 36.63 39.63 45.88 56.0 69.13 mm 203 232 257 299 321 419 435 473 518 775 854 930 1007 1165 1422 1756 in. 15.00 15.94 17.32 19.69 23.31 32.13 41.02 48.31 56.77 62.52 74.41 80.31 86.50 121.18 127.60 159.60 mm 381 405 440 500 592 816 1042 1227 1442 1588 1890 2040 2197 3078 3241 4040 in. 10 10 10 10 14 18 24 24 24 24 28 28 28 34 34 34 mm 254 254 254 254 356 457 610 610 610 610 711 711 711 864 864 864 lbs 67 70 126 135 215 386 658 998 1317 1915 2608 3319 4278 7529 10817 15300 kg 30 32 57 61 98 175 297 453 597 868 1182 1504 1938 3411 4907 6940 lbs 62 65 122 124 168 318 544 825 1090 1577 2224 2747 3722 6737 9500 14400 kg 28 29 55 56 77 145 374 247 494 715 1008 1245 1687 3052 4310 6632 Notes: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. 2. For the following valves with HIS option the center to top dimensions (open and closed) must be increased approximately 2 inches, consult factory for exact dimensions. 3. Consult factory for centerline to top dimensions (open and closed) for split wedge valves. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -9-
Gate Valves ANSI Class 600 Fig. No. 650 solid wedge 1½"-36" Fig. No. 650-BTT H.I.S. wedge 2"-24" Fig. No. 2650 split wedge 3"-24" Fig. No. 2655 flexible wedge 2½"-36" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of solid, flex or split wedge design Forged T-head stem Flanged or butt weld ends 0S&Y construction Full port design Renewable seat rings seal welded Full length wedge guides Ring joint bonnet gasket Anti-friction ball bearing yoke sleeve Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and AP1-600 Optional elastomer seals for High Integrity Shutoff Fig. No. 650 DIMENSIONS and WEIGHTS FIGURE NUMBERS: 650, 2650 (2) & 2655 A A 1 A 2 M End to End RTJ Center to Top Open Handwheel Dia. VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 10 12 14 16 18 20 24 30 36 in. 9.5 11.5 13.0 14.0 17.0 22.0 26.0 31.0 33.0 35.0 39.0 43.0 47.0 55.0 65.0 82.0 mm 241 292 330 356 432 559 660 787 838 889 991 1092 1194 1397 1651 2083 in. 9.5 11.5 13.0 14.0 17.0 22.0 26.0 31.0 33.0 35.0 39.0 43.0 47.0 55.0 65.0 82.0 mm 241 292 330 356 432 559 660 787 838 889 991 1092 1194 1397 1651 2083 in. 9.5 11.63 13.13 14.13 17.13 22.13 26.13 31.13 33.13 35.13 39.13 43.13 47.25 55.37 65.5 82.63 mm 241 295 334 359 435 562 664 791 842 892 994 1096 1200 1406 1664 2099 in. 16.65 17.99 20.12 25.00 37.72 42.44 48.86 56.69 60.09 71.06 78.11 79.92 107.00 155.98 165.38 mm 419 457 511 635 958 1078 1241 1440 1628 1805 1984 2030 2718 3962 4201 in. 8 10 10 10 14 18 24 24 28 28 34 34 34 34 34 34 mm 203 254 254 254 356 457 610 610 711 711 864 864 864 864 864 864 lbs 91 110 119 188 355 726 1175 1661 2332 2964 3668 5114 6870 8500 16000 25000 kg 41 50 54 86 161 329 533 753 1058 1343 1662 2320 3116 3856 7256 11340 lbs 62 86 116 147 278 604 1012 1386 1972 2644 3380 4400 5915 7150 14000 22000 kg 28 39 53 67 126 274 454 628 895 1198 1532 1996 2683 3244 6350 9980 Notes: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. 2. Consult factory for centerline to top dimensions (open and closed) for split wedge valves. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -10-
Globe Valves Major Features Pacific cast steel bolted bonnet globe valves are designed and manufactured to provide maximum service life and dependability. Valves meet the design requirements of AP1-600 and ANSI B16.34. Valves are available in a complete range of body/bonnet materials and trims. Yokesleeves furnished in aluminum-bronze to reduce operating torque. Most sizes furnished with ball bearing yokesleeves. Handwheel large handwheels for easy operation. Also available with gearing, motor actuators or cylinder actuators for more difficult services. Swing Bolts facilitate easier maintenance and packing replacement. Stuffing Box optional lantern rings and grease injectors are available. Gland two-piece gland/gland flange is self-aligning to eliminate stem damage from cocked gland. Stem precision machined stem has a backseat design. Bonnet Joint joint varies with ANSI class rating. Backseat machined bonnet stem bushing provides back-up stem seal. Seat Rings separate heavy duty, full ported rings for easy maintenance. Disc heavy duty disc available in plug, ball or V-port design. Body full ported, heavy duty body with API 600 wall thickness for maximum service life. Provided with bosses for optional by-passes or drains. End Connections choice of flanged or butt weld ends for piping flexibility. Range of Materials Standard body/bonnet materials include nine grades of carbon, low alloy and stainless steels. For special applications they can be supplied in other grades of alloy and stainless steel. There s a full range of trim materials to match any service. Optional packing and gasket materials are available for a full range of service conditions. Actuator Flexibility All valves are available with hand-wheels, gearing, electric motor actuators or pneumatic or hydraulic cylinder actuators. Easy Operation Threaded seat rings are easily accessible for repair or replacement. Packing swing bolts on most valves simplify packing replacement. All Pacific bolted bonnet designs facilitate fast disassembly. Longer Life Rugged construction provides years of reliable service. A two piece packing gland prevents cocking and stem damage. -11-
Globe Valves Optional Features Disc Types Pacific globe valves are available with a choice of disc types to meet specific shutoff and throttling applications. See service recommendations (page 37) for throttling applications. Plug Disc Simplest and most economical disc type available. The disc is stem guided on all sizes. Disc has a differential angle front the seat to provide a line contact for maximum sealing. Simplest disc type for field repair. V-Port Disc Optional disc configuration, where more linear throttling characteristics are required. The bottom of the disc is guided by the body seat ring for maximum disc stability in throttling applications. Valves with V-port trim are provided with non-revolving stems and position indicator assemblies on the yoke. Ideal for non-severe throttling service where near linear characteristics are required. Ball Type Disc Optional disc configuration which provides line contact between spherical disc and conical body seat. This design minimizes galling tendency with non-hardened stainless steel seats and is less likely to stick in the body seat. Optional Soft Seated Trim All globe valves are available with optional Teflon disc. The molded teflon ring is bonded into a groove in the disc for maximum service life. This design is excellent for lower temperature service where tight shutoff is required. Specify T trim (see page 38). Standard Bonnet Joints Body/bonnet joints on Pacific valves are designed for rugged services with a more than adequate number of bonnet bolts. The standard joint varies, depending on valve class. These standard joints are shown. Class 150 The standard, circular bonnet joint is the simplest and most economical configuration for low pressure services. The male and female joint confines the gasket O.D. and I.D. Our standard gasket is corrugated metal, but flat gaskets of other materials are available when specified. Class 300 The circular male and female bonnet joint is self-aligning and encapsulates the gasket. Our standard gasket is double jacketed metal. Valves in these classes are also available with spiral wound or ring joint gaskets when specified. Class 600 and 900 The circular ring joint bonnet seal has proven to be the best bolted high pressure bonnet joint available. The ring joint is self-aligning; the gasket may be reused unless it is physically damaged. Valves in these classes are also available with spiral wound gasket bonnet joints when specified. -12-
Materials of Construction: Globes Valve 54 16a 52 49 46 16b 30 55 72 11 10 50 31 77 36 35 70 98 32 71 Part Name Material 54 Handwheel Nut Carbon Steel 50 Handwheel Malleable or Ductile Iron 31 Yokesleeve Ductile Ni-Resist or Aluminum-Bronze 77 Yoke Carbon Steel 16a Eyebolt Nut Carbon Steel 36 Gland Flange Carbon Steel 52 Eyebolt Carbon Steel 35 Gland 300 Series SS 49 Eyebolt Pin Carbon Steel Trim Parts 72 Disc Nut 32 Bonnet Stem Bushing 70 Stem (See page 38 for Trim Materials) 71 Disc (See Note 1) 11 Seat Ring (See Note 1) See below for balance Note 1: Disc and seat ring may either be solid facing material or a base material equal to or better than the body/bonnet material with facing as shown. Part Name Carbon Steel LCB LC3 WC6 WC9 46 Packing (G) Graphitic PTFE (A) PTFE (A) Graphitic Graphitic 30 Bonnet ASTM A216 Gr WCB ASTM A352 Gr LCB ASTM A352 Gr LC3 ASTM A217 Gr WC6 ASTM A217 Gr WC9 55 Bonnet Gasket Class 150 & 300 Mild Steel (F) 304 SS (A) (F) 304 SS (A) (F) 304 SS (F) 304 SS (F) Class 600 & up Steel ring 304 SS ring 304 SS ring 304 SS ring 304 SS ring 16b Bonnet Stud Nuts ASTM A194 Gr 2H ASTM A194 Gr 7 ASTM A194 Gr 7 ASTM A194 Gr 2H ASTM A194 Gr 2H 98 Bonnet Studs ASTM A193 Gr B7 ASTM A320 Gr L7 ASTM A320 Gr L7 ASTM A193 Gr B7 (B) ASTM A193 Gr B7 (B) 10 Body ASTM A216 Gr WCB ASTM A352 Gr LCB ASTM A352 Gr LC3 ASTM A217 Gr WC6 ASTM A217 Gr WC9 Part Name C5 C12 CA6NM CF8C CF8M 46 Packing (G) Graphitic Graphitic Graphitic Graphitic Graphitic 30 Bonnet ASTM A217 Gr C5 ASTM A217 Gr C12 ASTM A487 Gr CA6NM ASTM A351 Gr CF8C ASTM A351 Gr CF8M 55 Bonnet Gasket Class 150 & 300 Corr. 304 SS (F) Corr. 304 SS (F) Corr. 304 SS (F) Corr. 347 SS (F) Corr. 316 SS (F) Class 600 & up 304 SS ring 304 SS ring 304 SS ring 347 SS ring 316 SS ring 16b Bonnet Stud Nuts ASTM A194 Gr 2H (C) ASTM A194 Gr 2H (C) ASTM A194 Gr 2H ASTM A194 Gr 2H (D) ASTM A194 Gr 2H (E) 98 Bonnet Studs ASTM A193 Gr B7 (C) ASTM A193 Gr B7 (C) ASTM A193 Gr B7 ASTM A193 Gr B7 (D) ASTM A193 Gr B7 (E) 10 Body ASTM A217 Gr C5 ASTM A217 Gr C12 ASTM A487 Gr CA6NM ASTM A351 Gr CF8C ASTM A351 CF8M (A) Limits std. const. to +500 F. (B) Limits std. const. to +1000 F Special const. for max. temp. between +1000 F and +1100 F available on application. (C) Limits std. const. to +1000 F Special const. for max. temp. between +1000 F and +1200 F available on application. (D) Limits std. const to temp. between -20 F and +1000 F. Special const. for temp. between +1000 F and +1200 F available on application. (E) Limits std. const. to temp. between - 20 F and +1000 F. Special const. or lower temp or temp. between +1000 F and +1200 F available on application. (F) Class 150 gaskets are corrugated. Class 300 gaskets are double jacketed construction. (G) For services over 850 F Pacific Valves recommends special high temperature packing. Please consult factory when ordering. THE RIGHT IS RESERVED TO CHANGE OR MODIFY PRODUCT DESIGN OR CONSTRUCTION WITHOUT PRIOR NOTICE AND WITHOUT INCURRING ANY OBLIGATION TO MAE SUCH CHANGES AND MODIFICATIONS ON PRODUCTS PREVIOUSLY OR SUBSEQUENTLY SOLD. -13-
Globe Valves ANSI Class 150 Fig. No. 160 solid wedge 1½"-12" Fig. No. 160B ball disc 1½"-12" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of plug or ball disc OS&Y construction Flanged or butt weld ends Full port design-api wall thickness Renewable seat rings also available seal welded Male and female bonnet joint Corrugated metal bonnet gasket Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and API-600 Fig. No. 160 DIMENSIONS and WEIGHTS FIGURE NUMBERS: 160, 160B VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 10 12 A A 1 A 2 M End to End RTJ Center to Top Open Handwheel Dia. in. 6.50 8.00 8.50 9.50 11.50 16.00 19.50 24.50 27.50 mm 165 203 216 241 292 406 495 622 699 in. 6.50 8.00 8.50 9.50 11.50 16.00 19.50 24.50 27.50 mm 165 203 216 241 292 406 495 622 699 in. 7.00 8.50 9.00 10.00 12.00 16.50 20.00 25.00 28.00 mm 178 216 229 254 305 419 508 635 711 in. 11.42 12.44 12.99 14.37 16.30 19.87 24.53 31.61 33.03 mm 290 316 330 364 414 505 623 803 839 in. 8 8 10 10 10 14 18 18 18 ` mm 203 2203 254 254 254 356 457 457 457 lbs 30 50 69 84 138 238 411 598 824 kg 14 23 32 38 63 108 186 271 374 lbs 23 42 56 69 117 199 361 527 718 kg 11 19 25 31 53 90 164 239 326 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -14-
Globe Valves ANSI Class 150 Fig. No. 161 V-port disc 2"-10" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of plug or ball disc OS&Y construction Flanged or butt weld ends Full port design API wall thickness Renewable seat rings also available seal welded Male and female bonnet joint Corrugated metal bonnet gasket Meet design requirements of ANSI B16.5 B16.34, B16.25, B16.10 and API-600 Fig. No. 161 DIMENSIONS and WEIGHTS FIGURE NUMBER: 161 VALVE SIZES (inches) Dim Description 2 3 4 6 8 10 A in. 8.00 9.50 11.50 16.00 19.50 24.50 A 1 A 2 M End to End RTJ Center to Top Open Handwheel Dia. mm 203 241 292 406 495 622 in. 8.00 9.50 11.50 16.00 19.50 24.50 mm 203 241 292 406 495 622 in. 8.50 10.00 12.00 16.50 20.00 25.00 mm 12.44 14.37 16.30 19.87 24.53 31.61 in. 316 364 414 505 623 803 mm 400 498 540 721 848 895 in. 8 10 14 14 18 18 mm 203 254 356 356 457 457 kg 29 49 73 123 202 304 lbs 56 90 137 240 397 573 kg 25 41 62 109 180 260 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -15-
Globe Valves ANSI Class 300 Fig. No. 360 plug disc 1½"-12" Fig. No. 360B ball disc 1½"-12" Fig. No. 361 V-port disc 1½"-8" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of plug or ball disc OS&Y construction Flanged or butt weld ends Full port design API wall thickness Renewable seat rings also available seal welded Male and Female bonnet joint Double jacketed graphite bonnet gasket Anti-friction ball bearing yoke sleeve 10" and larger Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and API-600 Fig. No. 360 DIMENSIONS and WEIGHTS FIGURE NUMBERS: 360, 360B VALVE SIZES (inches) FIGURE NUMBER: 361 VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 10 12 1.5 2 3 4 6 8 9.00 10.50 12.50 14.00 17.50 22.00 A in. 9.00 10.50 11.50 12.50 14.00 17.50 22.00 24.50 28.00 mm 229 267 292 318 356 445 559 622 711 229 267 318 356 445 559 A 1 A 2 in 9.00 10.50 11.50 12.50 14.00 17.50 22.00 24.50 28.00 9.00 10.50 12.50 14.00 17.50 22.00 End to End mm 229 267 292 318 356 445 559 622 711 229 267 318 356 445 559 in. 9.50 11.13 12.13 13.12 14.63 18.13 22.62 25.13 28.63 9.50 11.12 13.12 14.62 18.12 22.62 RTJ mm 241 283 308 333 371 460 575 638 727 241 283 333 371 460 575 13.78 16.54 19.37 24.41 31.22 in. 13.78 15.39 16.54 19.37 24.41 31.22 45.08 49.61 Center to Top Open mm 350 391 420 492 620 793 1145 1260 350 420 492 620 793 8 8 10 14 18 18 M in. 8 8 10 10 14 18 18 34 34 Handwheel Dia. mm 203 203 254 254 356 457 457 864 864 203 203 254 356 457 457 lbs 60 79 104 137 224 388 635 1258 1698 70 94 157 248 418 669 kg 27 36 47 62 102 176 288 571 770 32 43 71 112 190 303 lbs 47 66 85 110 183 321 539 1114 1474 60 85 135 203 362 565 kg 21 30 39 50 83 146 244 505 669 27 39 61 92 164 256 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -16-
Globe Valves ANSI Class 600 Fig. No. 660 plug disc 1½"-12" Fig. No. 660B ball disc 1½"-12" Fig. No. 661 V-port disc 2"-4" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of plug or ball disc OS&Y construction Flanged or butt weld ends Full port design API wall thickness Renewable seat rings also available seal welded Ring joint bonnet gasket Anti friction ball bearing yoke sleeve 6" and larger Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and API-600 Fig. No. 660 M DIMENSIONS and WEIGHTS FIGURE NUMBERS: 660, 660B VALVE SIZES (inches) FIGURE No: 661 VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 12 2 3 4 A in. 9.50 11.50 13.00 14.00 17.00 22.00 26.00 33.00 mm 241 292 330 356 432 559 660 838 11.50 14.00 17.00 292 356 432 A 1 End to End in. 9.50 11.50 13.00 14.00 17.00 22.00 26.00 33.00 mm 241 292 330 356 432 559 660 838 11.50 14.00 17.00 292 356 432 A A2 M A 2 RTJ Center to Top Open in. 9.50 11.63 13.13 14.13 17.13 22.13 26.13 33.13 mm 241 295 333 359 435 562 664 841 in. 15.43 17.00 18.82 20.87 26.57 28.39 42.28 mm 392 432 478 530 675 721 1074 11.63 14.13 17.13 295 359 435 15.43 18.82 20.87 392 478 530 M Handwheel Dia. in. 8 10 10 14 18 24 24 34 mm 203 254 254 356 457 610 610 864 lbs 76 115 138 191 318 782 1224 2820 kg 34 52 63 87 144 355 555 1280 10 14 18 254 356 457 130 211 342 59 96 155 lbs 70 97 116 166 272 656 1100 2500 kg 32 44 53 75 123 298 499 1134 113 186 296 51 84 134 A 1 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -17-
Globe Stop Check Valves Major Features Yokesleeves furnished in aluminum-bronze to reduce operating torque. Most sizes furnished with ball bearing yokesleeves. Eye Bolts swing bolts facilitate easier maintenance and packing replacement. Handwheel large handwheels for easy operation. Also available with gearing, motor actuators or cylinder actuators for more difficult services. Stem precision machined stem has a backseat design. Bonnet Joint joint varies with ANSI class rating. Backseat machined bonnet stem bushing provides back-up stem seal. Seat Ring heavy duty, full ported ring threaded into body for easy maintenance. Disc heavy duty disc available in plug, ball or V-port design. Body full ported, heavy duty body with API 600 wall thickness for maximum service life. Provided with bosses for optional by-passes or drains. End Connections choice of flanged or butt weld ends for piping flexibility. Sizing For best performance, stop-check valves should operate within a flow range sufficient to hold the valve fully open, but not so high that it produces excessive turbulence and pressure drop. Either extreme may damage valve internal parts and shorten valve life. The most effective method to correctly size a stop-check valve is to calculate the valve seat port velocity (see Technical Data section) at the operating flow rate. The ideal seat port velocity for a stop-check valve should fall within the velocity range expressed by the following formula: 40 v velocity (fps) 120 v Where v = Square root of specific volume of flow media at operation conditions. Valve size should be adjusted up or down until the seat port velocity is within this range for maximum value service life. -18-
Globe Stop Check Valves ANSI Class 150 Fig. No. 160S globe 1½"-10" FEATURES Full range of body/bonnet materials Full range of trim materials Choice of plug or ball disc OS&Y construction Flanged or butt weld ends Full port design API wall thickness Renewable seat rings also available seal welded Horizontal service Male and female bonnet joint Corrugated metal bonnet gasket Meet design requirements of ANSI B16.5, B16.34, B16.25, B16.10 and API-600 Fig. No. 160S DIMENSIONS and WEIGHTS FIGURE NUMBER: 160S VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 10 A A 1 A 2 M in. 6.50 8.00 8.50 9.50 11.50 16.00 19.50 24.50 mm 165 203 216 241 292 406 495 622 End to End in. 6.50 8.00 8.50 9.50 11.50 16.00 19.50 24.50 mm 165 203 216 241 292 406 495 622 in. 7.00 8.50 9.00 10.00 12.00 16.50 20.00 25.00 RTJ mm 178 216 229 254 305 419 508 635 Center to Top in. 5.11 6.30 6.70 7.49 8.87 10.18 12.60 13.72 Open mm 130 160 170 190 225 260 320 350 Handwheel in. 8 8 10 10 10 14 18 18 Dia. mm 203 203 254 254 254 356 457 457 lbs. kg lbs. kg 30 14 23 11 50 23 42 19 69 32 56 25 84 38 69 31 138 63 117 53 238 108 199 90 411 186 361 164 598 271 527 239 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -19-
Globe Stop Check Valves ANSI Class 300 Fig. No. 360S globe 1½"-12" FEATURES Full range of body/bonnet materials Full range of trim materials OS&Y construction Flanged or butt weld ends Full port design API wall thickness Renewable seat rings also available seal welded Horizontal service Male and female bonnet joint Double jacketed metal bonnet gasket Meet design requirements of ANSI B16.5 and B16.34 Fig. No. 360S DIMENSIONS and WEIGHTS FIGURE NUMBER: 360S VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 10 12 A A 1 A 2 M End to End RTJ Center to Top Open Handwheel Dia. in. 9.00 10.50 11.50 12.50 14.00 17.50 22.00 mm 229 267 292 318 356 445 559 in. 9.00 10.50 11.50 12.50 14.00 17.50 22.00 mm 229 267 292 318 356 445 559 in. 9.50 11.13 12.13 13.13 14.63 18.13 22.63 mm 241 283 308 333 371 460 575 in. 6.30 7.44 7.83 8.95 10.94 12.68 15.08 17.13 mm 160 189 199 227 278 322 383 435 in. 8 8 10 10 14 18 18 mm 203 203 254 254 356 457 457 lbs 60 79 104 137 224 388 635 kg 27 36 47 62 102 176 288 lbs 47 66 85 110 183 321 539 kg 21 30 39 50 83 146 244 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -20-
Globe Stop Check Valves ANSI Class 600 Fig. No. 660S globe 1½"-8" FEATURES Full range of body/bonnet materials Full range of trim materials OS&Y construction Flanged or butt weld ends Full port design API wall thickness Renewable seat rings also available seal welded Horizontal service Ring joint bonnet gasket Anti friction ball bearing yoke sleeve 6" and larger Meet design requirements of ANSI B16.5 and B16.34 Fig. No. 660S DIMENSIONS and WEIGHTS FIGURE NUMBER: 660S VALVE SIZES (inches) Dim Description 1.5 2 2.5 3 4 6 8 A in. mm 9.50 11.50 13.00 14.00 17.00 22.00 26.00 241 292 330 356 432 559 660 A 1 End to End in. mm 9.50 11.50 13.00 14.00 17.00 22.00 26.00 241 292 330 356 432 559 660 A 2 RTJ in. mm 9.50 11.63 13.13 14.13 17.13 22.13 26.13 241 295 333 359 435 562 664 Center to Top Open in. mm 7.38 8.25 10.06 12.94 14.31 187 210 256 329 363 M Handwheel Dia. in. mm 8 10 10 14 18 24 24 203 254 254 356 457 610 610 lbs. kg 76 115 138 191 318 782 1224 34 52 63 87 144 355 555 lbs. kg 70 97 116 166 272 656 1100 32 44 53 75 123 298 499 Note: 1. Dimensions, weights and other engineering data are subject to change or modification. This data is not to be used for construction unless confirmed by the factory. RELATED DATA Available materials and trims, see page 38. See Technical Data section for: Temperature/pressure data; Raised face or ring joint flanges; Butt weld ends; Flow calculations (Cv). See Actuators & Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc. -21-
Swing Check Valve Major Features All Pacific cast steel bolted bonnet swing check valves are available in a complete range of body/bonnet materials and trims (see page 38). The valves are designed to provide fast check valve action and maximum service life. All swing check valves are full ported, have full API 600 wall thickness, and meet the design requirements of ANSI B16.34. Bonnet Joint joint design varies with ANSI class rating. Hinge Pin precision machined solid pin for maximum strength and service life. Hinge designed to withstand the shock load of quick closing to insure longer life and continued shut-off. Seat Ring heavy duty, full ported seal welded into body. Disc Stop provides positive stop in open position; positions disc to effectively function in either horizontal or vertical (flow-up) pipe runs. Anti-Rotation Lugs lugs allow disc to seat freely and prevent disc spinning and wear. Disc rugged disc is bolted and pinned to hinge; ground seating surface is mated to seat ring for positive shutoff. End Connections choice of flanged end or butt weld for piping flexibility Body full ported, heavy duty body with API 600 wall thickness for maximum service life. Provided with bosses for optional drains. Range of Materials Standard body/bonnet materials include nine grades of carbon, low alloy and stainless steels. For special applications, they can be supplied in other grades of alloy and stainless steel. There s a full range of trim materials to match any service. Standard and optional gaskets are available for a wide variety of service conditions. Sizing Swing Check Valves Three factors should be considered when sizing swing check valves; the pressure drop across the valve, the flow velocity of the fluid through the valve, and the location of the valve in relation to other piping components. For best performance swing check valves should operate with fluid velocity sufficient to hold the disc in a stable position off the seat or fully open against the disc stop. Extremely high velocities should be avoided due to possible cavitation. In addition, there is a mid-range of velocity where the disc may become unstable as it approaches the disc stop. Operation in these velocity ranges should be avoided to achieve best performance and valve life. Calculating Pressure Drop Please refer to Flow Calculations in the Technical Data section for swing check valve flow coefficient (Cv) and equations to calculate pressure drop through the valve. Calculating Velocity Velocity equations are included in the Technical Data Section. When sizing swing check valves, the seat port velocity should be controlled within the general ranges specified below. Reliable Operation Valves are designed to close quickly with positive shutoff in either horizontal or vertical (flow up) pipe runs. The body seat ring is installed on a 3 angle. This allows our swing check valve to close completely even when installed in a horizontal pipe run with no flow. Easy Maintenance Our bolted bonnet design is simple to disassemble, easy to maintain. For example, our unique threaded seat rings are easily accessible for repair or replacement. 0 v 55 v Avoid this range. 55 v 240 v Longer Life Our rugged hinge pin/hinge and disc construction is designed to withstand the shock of quick closing and provides years of service. Anti-rotation lugs on discs extend service life in turbulent, high velocity services which can otherwise cause spinning and wear. Generally optimum operating velocity range (See note). Over 240 v Avoid this range. Where: v = The specific volume in ft 3 /lb of the fluid flowing. Note: There is an intermediate operating velocity within this range at which the disc may become unstable. This non-optimum operating velocity range is generally from 115 v to 135 v, however, upstream piping components placed in close proximity to the valve will tend to increase this range. Influence of Valve Position Swing check valves can be adversely affected by turbulence if placed too closely to other piping components such as pumps, control valves, meters, reducers, tees, elbows, etc. In general a minimum of 10 pipe diameters of straight pipe should be provided upstream of a swing check valve to minimize adverse conditions. -22-
Swing Check Valves Optional Features Anti-rotation Disc Two integrally cast lugs on the disc prevent the disc from spinning in service. This exclusive feature helps extend valve life in difficult services by eliminating disc spinning. Outside Lever and All external hinge pin swing check valves 12" and smaller are available with an optional outside lever and weight. This feature can be used to either dampen or assist closing of the check valve disc depending on orientation. By using the lever and weight to counterbalance the disc, the valve opens at lower flow rates. By orienting the weight to add to the disc weight, the weight closes the valve faster. Please specify which orientation is desired when requesting this feature. Optional Seat Types Heavy duty, full ported seat rings have controlled seat width to provide maximum sealing force. Our optional threaded design allows simple, low cost replacement. For high temperature service, seat rings should be lock welded or seal welded. Please specify. Seat ring facings are available in many materials, including Co-Cr-A alloy hardfacing, commonly specified for its excellent resistance to wear and damage. See page 38 for available trims. Standard Bonnet Joints Body/bonnet joints on Pacific valves are designed for rugged services with a more than adequate number of bonnet bolts. The standard joint varies, depending on valve class. These standard joints are shown. Class 150 Standard joint is a circular male and female configuration with a corrugated metal gasket. The male and female joint confines the gasket O.D and I.D. When specified, gaskets of other materials are available as an option. Class 300 The circular male and female bonnet joint is self-aligning and encapsulates the gasket. Our standard gasket is double jacketed metal. Valves in these classes are also available with spiral wound or ring joint gaskets when specified. Class 600, 900 and 1500 The circular ring joint bonnet seal has proven to be the best bolted high pressure bonnet joint available. The ring joint is self-aligning; the gasket maybe reused unless it is physically damaged. Valves in these classes are also available with spiral wound gaskets when specified. -23-