Trunnioun Ball Valves

Production Range

API603/ASME 16.34 API600/BS1414 Class Size Class Size 150 2"~ 12" 150 2"~ 24" 300 2"~ 12" 300 2"~ 16" 600 2"~ 12" 600 2"~ 12" 900 2"~ 12" 1500 2"~ 12"

Design Standards

Pressure-Temperature rating ANSI B16.34 Face to Face Dimensions ANSI B16.10 End Flange Dimensions ASME B16.5 Testing API598/MSS-SP-41 Bonnet Bolt ASTM A193/ ASTM A320 BonbetNut ASTM A194 Marking MSS-SP-25 Light wall Thickness API603/ANSI B16.34 Heavy Wall thickness PI 600/ BS 1873

DESIGN FEATURE

Seat Sealing

Soft seats are standard. Seat inserts of synthetic material such as Nylon,PTFE, RTFE or Peek are containedwithin a metal seat ring. With no orvery low line pressure, sealing betweenthe seats and ball is achieved by seatsprings. With higher line pressure, theline pressure, in conjunction with thespring load, forces the upstream seatring against the ball, which results intighter sealing.0-ring seat insertdesign is available.

Self Reli eving Seat

This standard feature is designed to prevent excessive pressure buildupwithin the valve by automaticallyrelieving pressure when body cavitypressure exceeds the spring load onthe seatsDouble Piston Seat is also available asan option.

Sealant Inject Fitting

This feature is standard except in sizes 2"-4" for pressure classes 150,300and 500, In case of seat ring damage,sealant injection provides a fast,reliable way to restore tight sealing,This injection system can also be usedfor routine flushing of the seat ring areawhile in service.

Double Seals at all joints

All connecting parts employ a doublr sealing design incorporating a spiralwound 316ssigraphite gasket ando-ring to ensure positive sealing.Delta ring is used optionally for class1500-2500.

Stem Sealing&Sealant lnjection Fitting

Two o-rings and graphite packing are used for pressure classes 150through 600. One each of lipseal ando-ring plus graphite packing are usedfor pressure classes 900 through2500, In case of damage to the o-rirglipseal, sealant injection stops leakingand restores tight sealing

Seat Ring Sealing

All connecting parts employ a double sealing design incorporating a spiralwound 316ssigraphite gasket ando-ring to ensure positive sealing.Delta ring is used optionally for class1500-2500

Actuation

JMC® Trunnion ball valves are designed to easily install a variety of actuatots including pneumatic,hydraulic, electric actuators, electro-mechanical, electro-hydraulic, vane, Hand operated valves are normally etc supplied with a lever or gear operator High-performance hydraulic actuators, which have been specialty developed for JMC® trunnion ball valves, can be supplied directly from SAMJIN JMCFurther information can be received on request.

Double Block and Bleed

JMC㉧ Trunnion ball valves provide a positive seal at both upstream and downstream independently, Since pressure on each side of the ball is blocked from the body cavity, a pressure releasing device can be used by an operator to check the integrity of the upstream anddownstream seats

Low Friction Stem/Trunnion Bea rings and Thrust WRshers

Heavy duty PTFE lined carbon or stainless steel bearing and thrust washers ensure durable and low torque operation.

Other Features

-Anti Static Device for Grounding ISO5211 Mounting pad and Adaptability forall types of Actuator mounting -Blow-Out Proof Stem -Stem extension pieces or pups PART LIST AND STANDARD MATERIAL SPEC NO Part Name CarbonSteel NACE Low Temp NACE Stainless Steel NACE 1 Body A105 A350 LF2 A182 F316 2 Cap A105 A350 LF2 A182 F316 3 Stem AISI 1020+ENP AISI 4140+ENP/A182 F316 A182 F316/A564 630 4 Seat Ring A105+ENP A350 LF2+ENP/A182 F316 A182 F316 5 Ball A105+ENP A350 LF2+ENP/A182 F316 A162 F316/A351 CF8M 6 Seat Insert Nylon/PTFE/RTFE/PEEK 7 Trunnion AISI 1020/A105+ ENP AISI 4140/A350 LF2+ ENP A479 361 8 Gland AISI1020/A105 AISI 4141/A350 LF2 A479 361 9 Adapter Plate AISI1045 LF2+ ENP1045 A479 361 10 Sten O-ring* Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 11 Stem Sub-seal** Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 12 Gland O-ring* Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 13 Seat O-ring* Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 14 Seat Sub-seal** Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 15 Cap O-ring* Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 16 Trunnion O-ring* Viton A HNBR/Polymite/Viton GLT HNBR/Viton GLT 17 Cap Backup Ring PTFE/Nylon PTFE/Nylon PTFE/Nylon 18 Gland Baxkup Ring PTFE/Nylon PTFE/Nylon PTFE/Nylon 19 Seat Backup Ring PTFE/Nylon PTFE/Nylon PTFE/Nylon 20 Trunnion Backup Ring PTFE/Nylon PTFE/Nylon PTFE/Nylon 21 Gland Seal Spiral Wound Gasket 316SS + Graphite 22 Cap Seal Spiral Wound Gasket 316SS + Graphite 23 Trunnion Seal Spiral Wound Gasket 316SS + Graphite 24 Stem Packing Graphite 25 Seat Spring inconel X-750 26 Bearing SS316+PTFE/Carbon Steel+PTFE 27 Thrust Washer SS316+PTFE/Carbon Steel+PTFE 28 Sealant Fitting AISI 4140/A479 316 29 Socket Bolt A193 B7M A320 L7M A193 B8M 30 Hex/Socket Bolt A193 B7M A320 L7M A193 B8M 31 Stud Bolt A193 B7M A320 L7M A193 B8M 32 Hex.Nut A194 2HM A194 7M A194 8M 33 Grounding Pin A479 316 34 Grounding Spring A479 316 35 Key AISI 1045 A479 316 36 Dowel Pin AISI 1045 A479 316 37 Relief Plug A105 A182 F316 38 Drain Plug A105 A182 F316 39 Mounting Plate AISI 1045 A182 F316 40 Gear Operator A536 Case / A322 Worm Gear 41 Hand Wheel A53