
Trunnion Mounted Ball Valves – API 6D, 2"–56", Class 150–2500
J-VALVES manufactures API 6D trunnion mounted ball valves from 2" to 56" (DN50-DN1400), Class 150 to 2500, in 2-piece, 3-piece and top-entry designs. Forged (A105, LF2, F316) and cast (WCB, CF8M, duplex) bodies,Titanium alloy, Inconel alloy, Monel alloy, bronze alloy and other special materials, soft or metal seated, with manual, pneumatic and electric actuation - engineered for high-pressure, large-bore pipeline isolation in oil & gas, LNG and offshore service.
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- Top entry trunnion mounted ball valve with a one piece body that removes the bolted body joint from the pressure boundary. Seats and seals are serviced through the top cover without cutting the valve out of the pipeline.Nominal Size: 1 inch to 36 inch
Pressure Class: ASME Class 150 to 2500
Body Material: WCB, LCC, CF8M, CF3M, A105 forged
Body Style: One piece top entry
Ball & Stem: CF8M or F316 with ENP coating
Seat Material: PTFE, RPTFE, PEEK or metal
End Connection: Flanged RF / RTJ, butt weld
Operation: Gear, pneumatic or electric actuator
Maintenance: In line, through the top cover
Design Standard: API 6D / ISO 14313
Test Standard: API 598, API 607 fire safe
Options: Sealant injection, cavity relief, extended stemBrand:J-VALVES - A high pressure trunnion mounted ball valve for Class 900 to 2500 service, built to API 6D PSL3 with a forged or cast body, spring loaded seats, double block and bleed and sealant injection ports. Suited to wellheads, gas gathering and high pressure process isolation.Nominal Size: 2 inch to 24 inch (DN50 to DN600)
Pressure Class: ASME Class 900 / 1500 / 2500
Body Material: A105 forged, WCB cast, A182 F316, F51 duplex
Ball & Stem: A182 F316 with ENP or hard chrome
Seat Material: PTFE, RPTFE, PEEK or metal to metal
End Connection: Flanged RF / RTJ, butt weld, hub
Operation: Gear, pneumatic or electric actuator
Design Standard: API 6D / ISO 14313, ASME B16.34
Test Standard: API 598, shell 1.5x and seat 1.1x
Fire Safe: API 607 / API 6FA
Material Certificate: EN 10204 3.1 with heat number traceability
Temperature Range: -29 C to +200 C, trim dependentBrand:J-VALVES - Nominal Size: 16" (DN400)
Pressure Class: 300LB (PN50)
Temperature Range: -29℃ to +425℃
Body / Bonnet: Cast Carbon Steel ASTM A216 WCB
Ball: A105N / WCB with hard chrome plating, or 304 / 316 stainless steel (optional)
Stem: 17-4PH Precipitation Hardening Stainless Steel or 316 Stainless Steel
Seat: PTFE, RPTFE, PPL, Nylon (auxiliary seal for medium and low pressure); metal seal with Stellite hardfacing available for primary seal (optional)
Sealing Materials: PTFE / RPTFE / PPL (seat), Flexible Graphite (stem packing)
Bearing / Trunnion: 440C Stainless Steel with self-lubricating bearing, or Inconel alloy
End Connection: Flanged (RF Raised Face or RTJ Ring Type Joint, in accordance with ASME B16.5)
Operation: Manual (worm gear / bevel gear with bearing torque reduction), pneumatic, electric, hydraulic (high-torque actuator required)
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimension: Conforms to ASME B16.10Brand:J-VALVES - Nominal Size: 6×4" (DN150×DN100)
Pressure Class: 300LB (PN50)
Temperature Range: -29℃ to +425℃
Body / Bonnet: ASTM A216 WCB cast carbon steel
Ball: A105N / WCB with hard chrome plating, or 316 stainless steel (optional)
Stem: 17-4PH stainless steel or 316 stainless steel
Seat: PTFE, RPTFE, PPL, nylon, or metal seal (Stellite alloy hardfacing)
Sealing Material: F236 (FKM fluoroelastomer, oil-resistant and high-temperature resistant); EPDM, PTFE, etc. are available upon request
Bearing / Support Shaft: Stainless steel with self-lubricating bearings (e.g. PTFE/graphite composite)
End Connection: Flanged (RF Raised Face or RTJ Ring-Type Joint, in accordance with ASME B16.5)
Operation: Manual (worm gear / bevel gear), pneumatic, electric, hydraulic (optional)
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimension: In accordance with ASME B16.10Brand:J-VALVES - Nominal Size: 6″ (DN150)
Pressure Class: 900LB (PN150)
Temperature Range: -29℃ to +425℃
Body / Bonnet: ASTM A182 F316 (316 stainless steel); optional F316L (low-carbon, intergranular corrosion resistant), F321/F347 (stabilized, anti-sensitization), or F44/F904L (super austenitic, extreme corrosion resistant)
Ball: F316 + ENP (electroless nickel plating) / hard chrome plating / HVOF tungsten carbide coating / Stellite alloy hardfacing
Trunnion / Support: Surface-hardened F316 or 17-4PH precipitation hardening stainless steel
Stem: 17-4PH precipitation hardening stainless steel, F316 + ENP, or Inconel 718
Seat Seal:
PTFE/RPTFE (-196℃ ~ 200℃)
PPL (-40℃ ~ 280℃)
PEEK (-60℃ ~ 260℃)
Metal seal with flexible graphite (-29℃ ~ 650℃)
Packing: Flexible graphite reinforced with Inconel wire
Gasket: Flexible graphite stainless steel spiral wound gasket or metal ring gasket (octagonal / oval)
Bolting: ASTM A193 B8M (316 stainless steel) or B7 (alloy steel), with A194 8M / 2H nuts
End Connection: Flanged (RF Raised Face / RTJ Ring Type Joint, ASME B16.5); optional BW butt-weld ends (ASME B16.25)
Operation: Manual (worm gear box, standard for large-bore high-pressure service); pneumatic (single/double acting), electric (multi-turn / quarter-turn), hydraulic, and gas-hydraulic actuator
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimensions: In accordance with ASME B16.10Brand:J-VALVES - Nominal Size: 14″ (DN350)
Pressure Class: 300LB (PN50)
Temperature Range: -29℃ to +425℃
Body / Bonnet: ASTM A216 WCB cast carbon steel; optional A105 forged steel (higher strength) or A350 LF2 (low-temperature service)
Ball: WCB/A105 with ENP (electroless nickel plating) / hard chrome plating / stainless steel overlay
Trunnion / Support: A105 with surface hardening treatment or 17-4PH precipitation hardening stainless steel
Stem: 17-4PH precipitation hardening stainless steel, A105 with ENP
Seat Seal: PTFE / RPTFE (-29℃~180℃); PPL (-29℃~280℃); PEEK (-60℃~260℃); metal seal + flexible graphite (-29℃~425℃)
Packing: Flexible graphite reinforced with Inconel wire, or PTFE V-rings
Gasket: Flexible graphite stainless steel spiral wound gasket or metal ring gasket
Bolts: ASTM A193 B7/B7M (alloy steel) or B8M (stainless steel), with A194 2H/2HM/8M nuts
End Connections: Flanged (RF Raised Face, ASME B16.5); optional BW butt-weld ends (ASME B16.25)
Operation: Manual (worm gear box, standard for large bore); pneumatic (single/double acting), electric (multi-turn / rotary), hydraulic, pneumatic-hydraulic
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimension: In accordance with ASME B16.10Brand:J-VALVES - Size Range: 2″ to 56″ (DN50 to DN1400)
Pressure Class: 150LB to 2500LB (PN20 to PN420)
Temperature Range: -29℃ to +425℃
Body / Bonnet: ASTM A105 (carbon steel), A350 LF2 (low-temperature steel), A182 F304/F316 (stainless steel), A182 F51/F53 (duplex stainless steel), Inconel and other special alloys
Ball: Forged steel base with ENP (electroless nickel plating) / hard chrome plating / HVOF tungsten carbide coating / Stellite alloy hardfacing
Trunnion / Support: Forged steel with surface hardening treatment or stainless steel
Stem: 17-4PH precipitation hardening stainless steel, A105+ENP, F316, etc.
Seat Seal:
PTFE/RPTFE (-196℃ ~ 200℃)
PPL (-40℃ ~ 280℃)
PEEK (-60℃ ~ 260℃)
Metal seal with flexible graphite (-29℃ ~ 650℃)
Gasket: Flexible graphite stainless steel spiral wound gasket, metal ring gasket (octagonal / oval)
Bolting: ASTM A193 B7/B7M/B8/B8M, with A194 2H/2HM/8/8M nuts
End Connection: Flanged (RF Raised Face / RTJ Ring Type Joint), optional butt-weld (BW) ends
Operation: Manual (lever / worm gear box, standard for large sizes), pneumatic (spring-return single-acting / double-acting), electric (on-off / modulating), hydraulic, gas-hydraulic actuator
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimensions: In accordance with ASME B16.10Brand:J-VALVES - Nominal Size: 4×3″ (DN100×DN80)
Pressure Class: 1500LB (PN260)
Temperature Range: -29℃ to +425℃
Body / End Caps: ASTM A105N (normalized forged carbon steel); optional A350 LF2 (low-temperature steel down to -46℃) or A182 F316 (upgraded stainless steel)
Ball: A105N with ENP (electroless nickel plating) / hard chrome plating / HVOF tungsten carbide coating / Stellite alloy overlay
Trunnion / Supports: Surface-hardened A105N or 17-4PH precipitation hardening stainless steel
Stem: 17-4PH precipitation hardening stainless steel, A105N with ENP, or Inconel 718
Seat Sealing: PTFE/RPTFE (-29℃~180℃); PPL (-29℃~280℃); PEEK (-60℃~260℃); metal seal with flexible graphite (-29℃~425℃)
Packing: Flexible graphite reinforced with Inconel wire
Gasket: Metal ring joint gasket (octagonal / oval type, soft iron / low-carbon steel / F316 plated)
Bolts: ASTM A193 B7/B7M (alloy steel) or B8M (stainless steel), with A194 2H/2HM/8M nuts
End Connection: Flanged (RTJ ring type joint, ASME B16.5); optional BW butt weld ends (ASME B16.25)
Operation: Manual (worm gearbox, standard for ultra-high pressure); pneumatic (high-torque cylinder with gas-hydraulic actuation); electric (multi-turn motor); hydraulic
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimension: In accordance with ASME B16.10Brand:J-VALVES - Nominal Size: 6″ (DN150)
Pressure Class: 2500LB (PN420)
Temperature Range: -29℃ to +425℃
Body / End Cap: ASTM A182 F316 (316 stainless steel); optional F316L (low-carbon grade, resistant to intergranular corrosion), F321 / F347 (stabilized grade, anti-sensitization), or F44 / F904L (super austenitic grade for extreme corrosion service)
Ball: F316 with ENP (electroless nickel plating) / hard chrome plating / HVOF tungsten carbide coating / Stellite alloy hardfacing
Trunnion / Support: Surface-hardened F316 or 17-4PH precipitation-hardening stainless steel
Stem: 17-4PH precipitation-hardening stainless steel, F316 with ENP, or Inconel 718 (high strength for ultra-high pressure)
Seat Seal:
PTFE / RPTFE (-29℃ ~ 200℃)
PPL (-29℃ ~ 280℃)
PEEK (-60℃ ~ 260℃)
Metal seal + flexible graphite (-29℃ ~ 650℃)
Packing: Flexible graphite reinforced with Inconel wire
Gasket: Metal ring joint gasket (octagonal / oval type, F316L / soft iron / low-carbon steel plated)
Bolts: ASTM A193 B8M (316 stainless steel) or B7 (alloy steel), with A194 8M / 2H nuts
End Connection: Flanged (RTJ ring joint face, ASME B16.5); optional BW butt weld ends (ASME B16.25)
Operation: Manual (worm gear box, standard for ultra-high pressure high torque); pneumatic-hydraulic (pipeline linebreak / ESD emergency shutdown), electric (multi-turn motor), hydraulic
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face: Complies with ASME B16.10Brand:J-VALVES - Nominal Size: 10″ (DN250)
Pressure Class: 300LB (PN50)
Temperature Range: -29℃ to +425℃
Body / Bonnet: Cast carbon steel ASTM A216 WCB; optional A105 forged steel (higher strength) or A350 LF2 (low-temperature service)
Ball: WCB / A105 with ENP (electroless nickel plating) / hard chrome plating / stainless steel hardfacing
Trunnion / Support: Surface-hardened A105 or 17-4PH precipitation-hardening stainless steel
Stem: 17-4PH precipitation-hardening stainless steel, A105 with ENP
Seat Seal:
PTFE / RPTFE (-29℃ ~ 180℃)
PPL (-29℃ ~ 280℃)
PEEK (-60℃ ~ 260℃)
Metal seal + flexible graphite (-29℃ ~ 425℃)
Packing: Flexible graphite reinforced with Inconel wire
Gasket: Flexible graphite stainless steel spiral wound gasket or metal ring joint gasket
Bolts: ASTM A193 B7 / B7M (alloy steel) or B8M (stainless steel), with A194 2H / 2HM / 8M nuts
End Connection: Flanged (RF raised face / RTJ ring-type joint face, ASME B16.5); optional BW butt weld ends (ASME B16.25)
Operation: Manual (worm gear box, standard for large bore); pneumatic (single / double acting), electric (multi-turn / quarter-turn), hydraulic, pneumatic-hydraulic
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face: Complies with ASME B16.10Brand:J-VALVES - Nominal Size: 16″ (DN400)
Pressure Class: 300LB (PN50)
Temperature Range: -29℃ to +425℃
Body / Bonnet: Cast carbon steel ASTM A216 WCB; optional A105 forged steel (higher strength) or A350 LF2 (for low-temperature service)
Ball: WCB / A105 with ENP (electroless nickel plating) / hard chrome plating / stainless steel overlay
Trunnion / Supports: Surface-hardened A105 or 17-4PH precipitation hardening stainless steel
Stem: 17-4PH precipitation hardening stainless steel, A105 with ENP
Seat Sealing: PTFE / RPTFE (-29℃~180℃); PPL (-29℃~280℃); PEEK (-60℃~260℃); metal seal with flexible graphite (-29℃~425℃)
Packing: Flexible graphite reinforced with Inconel wire, or PTFE V-rings
Gasket: Flexible graphite stainless steel spiral wound gasket or metal ring joint gasket
Bolts: ASTM A193 B7 / B7M (alloy steel) or B8M (stainless steel), with A194 2H / 2HM / 8M nuts
End Connection: Flanged (RF Raised Face, ASME B16.5); optional BW butt weld ends (ASME B16.25)
Operation: Manual (worm gearbox, standard for large size); pneumatic (single / double acting), electric (multi-turn / quarter-turn), hydraulic, gas-hydraulic
Design Standards: ASME B16.34, API 6D, API 608
Testing Standards: API 598, API 6D
Face-to-Face Dimension: In accordance with ASME B16.10Brand:J-VALVES - Nominal Size: DN50 (2″)
Pressure Class: PN63 (6.3MPa)
Body Material: ASTM A182 F304L
Temperature Range: -29℃ to +425℃
Body / Side Body: ASTM A182 F304L
Ball: A351 CF3M (316L) / CF8M (316), standard ENP electroless nickel plating or STL Stellite alloy spraying for abrasive services
Stem: F304L / F316L / 17-4PH, high strength and corrosion resistant
Seat: RPTFE (standard) / PEEK / Nylon / F316L with STL hardfacing (metal seated)
Packing: PTFE V-type combination / Flexible graphite / Special low-temperature graphite
Bolts: ASTM A193 B8M (stainless steel, corrosion resistant) / B7 (carbon steel, ambient temperature)
Nuts: ASTM A194 8M / 2H
Gasket: Stainless steel spiral wound gasket (316L/flexible graphite filled) / Metal ring gasket (octagonal / oval)
End Connection: Flanged (Type B Raised Face / Type E Ring Joint Face), conforming to EN 1092-1 PN63; BW butt-weld ends available on request
Flange Face Dimensions: In accordance with ASME B16.5
Face-to-Face Dimensions: In accordance with EN 558 / ISO 5752, approximately 216mm for DN50 PN63 trunnion mounted ball valve (subject to manufacturer’s data)
Operation: Manual (lever / worm gear), pneumatic (double acting / single acting), electric (on-off / modulating / intelligent), hydraulic
Design Standards: API 608, ASME B16.34, API 6D
Test Standards: API 6D, API 598Brand:J-VALVES
Trunnion ball valves FAQ
Q1 What is a trunnion mounted ball valve used for?
Trunnion mounted ball valves are used for high-pressure, large-bore pipeline isolation - the ball is fixed by upper and lower trunnions, so seat sealing stays reliable at Class 150-2500 where floating designs are not practical.
Q2 What sizes do J-VALVES trunnion ball valves cover?
Q3 Can trunnion ball valves be actuated?
