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Trunnion mounted ball valves
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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.

  • Size Range: 8 inch (DN200); 2 to 24 inch in the family
    Pressure Class: Class 300 (PN50), 51.1 bar at 38°C
    Body Material: ASTM A105N forged, or A216 WCB cast
    Ball: CF8 / CF8M, or A105N with ENP / hard chrome
    Seat: PTFE, RPTFE, PPL, or A105N with Stellite hardfacing
    Stem: 316 stainless or 17-4PH, anti-blowout
    Bolting: A193 B7 studs with A194 2H nuts
    Body Joint: Single gasketed joint; spiral wound or RTJ
    Top Flange: ISO 5211 mounting pad, standard
    End Connection: Flanged RF / RTJ to ASME B16.5
    Temperature Range:-29°C to +425°C, seat dependent
    Design Standard: ASME B16.34, API 6D, API 608
    Test Standard: API 598, API 6D
    Brand:
    J-VALVES
  • Size Range: 2 to 56 inch (DN50 to DN1400)
    Pressure Class: Class 150 to 2500 (PN20 to PN420)
    Body Material: A105, A350 LF2, A182 F304 / F316, A694 F65
    Ball: A105 + ENP 50 µm min, or stainless with STL / tungsten carbide
    Seat: RPTFE, nylon, PEEK, or metal with Stellite hardfacing
    Stem :A182 F6a, F316, or F51 duplex, surface hardened
    End Connection: Flanged RF / RTJ to ASME B16.5, B16.47 above 24 inch
    Actuator: Rack and pinion or scotch yoke, double acting or spring return
    Air Supply: 0.4 to 0.7 MPa standard, 1.0 MPa option
    Mounting Interface: ISO 5211 pad and drive
    Pressure Drop: Under 0.01 bar at full open, full bore
    Temperature Range: -46°C to +200°C; -196°C or +425°C option
    Standard :API 6D, ASME B16.34, ISO 14313; test API 598, ISO 5208
    Brand:
    J-VALVES
  • Size Range: 2 to 48 inch (DN50 to DN1200)
    Pressure Class: ASME Class 150 to 2500 / PN20 to PN420
    Body Material: A105, A350 LF2, A182 F304 / F316, A351 CF8M, F51 duplex
    Ball: A105 with ENP 50 micrometres or more, or stainless with Stellite / tungsten carbide
    Seat: RPTFE, nylon, PEEK, PCTFE, or metal with Stellite
    Stem: A182 F6a, F316, F51 or 17-4PH, anti-blowout
    Actuator Type: Scotch yoke, double acting or single acting spring return
    Air Supply: 0.4 to 0.7 MPa standard, 1.0 MPa option
    Fail Position: Fail closed, fail open, or fail last
    Anti-Static: Ball to body and stem to body 10 ohm or less, measured and recorded
    Stroke Time: 1 to 60 s adjustable double acting; spring return typically 1 to 3 s
    Actuator Mounting: ISO 5211
    Design Standard: API 6D, ASME B16.34, ISO 14313
    Test Standard: API 6D, API 598, ISO 5208
    Fire Safe: API 607 / API 6FA
    Operation: Pneumatic, with manual override option
    Brand:
    J-VALVES
  • Sixteen inch Class 300 WCB trunnion mounted ball valves, full bore and gear operated, with body feet and spring loaded seats. At this size the ball and pipe loads meet at the trunnion bearings.
    Brand:
    J-VALVES
  • Three piece forged trunnion valves for welded pipelines, fire safe to API 607 with a metal shoulder behind each seat. Butt weld ends to B16.25 and two support feet on the body.
    Brand:
    J-VALVES
  • Nominal Size: 6 x 4 inch (DN150 x DN100) reduced bore; 2 to 12 inch range
    Pressure Class: ASME Class 2500 / PN420
    Cold Working Pressure: Approx. 42 MPa at 38 degrees Celsius
    Shell Test Pressure: Approx. 63 MPa, 1.5 times rating
    Seat Test Pressure: Approx. 46 MPa, 1.1 times rating
    Body Material: Forged ASTM A182 F304, F316, F316L
    Ball: F304, F316, HVOF tungsten carbide or Stellite hardfacing
    Seat: PEEK or Devlon V-API with anti-extrusion ring; Stellite or Inconel metal
    Seat Design: Double piston effect with external cavity relief
    Stem: F316, 17-4PH, Inconel 718
    Bolting: A193 B8M Class 2; Inconel 718 above 450 degrees Celsius
    Gasket: RTJ ring to ASME B16.20, or spiral wound graphite
    End Connection: Flanged RF or RTJ to ASME B16.5
    Face to Face: ASME B16.10
    Operation: Gearbox, pneumatic, electric, hydraulic, ESD
    Gearbox Ratio: 250:1 to 400:1 for metal seated, 60 to 120 handwheel turns
    Design Standard: API 6D, ASME B16.34, API 608
    Test Standard: API 6D, API 598
    Fire Safe: API 607 / ISO 10497
    Brand:
    J-VALVES
  • Three piece trunnion mounted valves forged from A105 at 6 inch Class 600, worm gear operated with a non reversing drive and a mechanical indicator, for turbine head warm up and drain lines.
    Brand:
    J-VALVES
  • Three piece trunnion mounted valves forged from normalized A105N at 6 inch Class 1500, PN 250 by its ISO designation. Bearing blocks from this size up, API 6D designed and API 598 tested.
    Brand:
    J-VALVES
  • Nominal Size: 12 x 10 inch (DN300 x DN250) reduced bore; 2 to 24 inch range
    Pressure Class: ASME Class 150 to 600 / PN20 to PN100
    Body Material: Forged ASTM A105; LF2, F304, F316 optional
    Body Construction: Two or three piece, bolted, repairable in line
    Ball: A105 with ENP, F304, F316
    Seat: RPTFE, Devlon, PPL, Stellite faced metal
    Stem: F6a, F304, F316, anti-blowout, independent of the ball
    Packing: PTFE V-ring, flexible graphite, low emission composite
    End Connection: Flanged RF or RTJ to ASME B16.5
    Face to Face: ASME B16.10
    Actuator: Hydraulic double acting or spring return, scotch yoke
    Hydraulic Supply: 10 to 25 MPa working pressure
    Accumulator: Nitrogen bladder, sized on the usable oil volume of the fail-safe stroke
    Fail Position: Fail closed, fail open, or fail last with hydraulic lock
    Closing Time: 15 to 120 seconds, independently adjustable open and close
    Hydraulic Fluid: Mineral oil, synthetic ester, or water-glycol
    Filtration: 25 micron standard, 10 micron for proportional control
    Manual Override: Hand pump with captive handle, works with the circuit at zero pressure
    Control Interface: 4-20 mA, Modbus RTU, DCS, ESD trip
    Design Standard: API 6D, API 608, ASME B16.34
    Test Standard: API 598, API 6D, ISO 5208
    Brand:
    J-VALVES
  • A two-piece reduced bore floating ball valve with DN50 flanged ends and a DN40 bore, forged A105 normalized body, PN20 / Class 150 rating and an extended stem that keeps the packing gland clear of insulation or burial. Soft seated, API 608, 178 mm face to face.
     
    Nominal Size: DN50 x DN40 (2 inch x 1.5 inch)
    Bore: Reduced bore, 38 mm through the ball
    Pressure Class: PN20 / ASME Class 150, 19.6 bar at 38 C
    Body Material: ASTM A105 forged carbon steel, normalized
    Ball Material: A105 hard chrome plated, 304 or 316 optional
    Stem Material: 410 / 420 stainless, 17-4PH optional
    Seat Material: PTFE, RPTFE or PPL
    Stem Packing: Flexible graphite or PTFE
    Body Construction: Two-piece, bolted body joint
    End Connection: RF flanged to ASME B16.5, EN 1092-1 optional
    Face to Face: 178 mm to ASME B16.10
    Extended Stem: 100 to 500 mm one piece, longer on request
    Operation: Lever, worm gear, pneumatic or electric
    Design Standard: API 608, ASME B16.34
    Test Standard: API 598, shell 1.5x and seat 1.1x
    Fire Safe: API 607 / ISO 10497
    Temperature Range: -29 C to +200 C, set by the seat
    Flow Coefficient: Kv approx 105 m3/h
    Breakaway Torque: approx 55 Nm at 19.6 bar differential
    Approx Weight: 7 kg with a 200 mm extension
    Material Certificate: EN 10204 3.1 with heat number
    Brand:
    J-VALVES
  • J-VALVES F51 duplex three piece trunnion mounted ball valve in 12x10 reduced bore, Class 2500 ring joint flanged, metal seated, with a gear operator and welded body support feet.
    Brand:
    J-VALVES
  • Size Range: 2 to 56 inch (DN50 to DN1400)
    Pressure Class: ASME Class 150, 300, 600, 900, 1500, 2500
    Body Style: Two piece, three piece, top entry, fully welded
    Bore: Full bore and reduced bore
    Body Material: WCB, LCC, CF8M, A105, F316, duplex F51
    Ball: A105 with ENP 50-75 µm, or F316 hard chrome
    Seat: RPTFE, PEEK, nylon; single or double piston effect
    Stem: A182 F6a, F316 or 17-4PH, anti-blowout
    End Connection: Flanged RF / RTJ, butt weld, socket weld
    Design Standard: API 6D, ASME B16.34, ISO 14313
    Face to Face: ASME B16.10
    Fire Safe: API 607 / API 6FA, graphite secondary seat
    Operation: Lever, gear, pneumatic, electric, gas over oil
    Brand:
    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?