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Three Piece Trunnion Mounted Ball Valve

Three Piece Trunnion Mounted Ball Valves

Warren Valve offers a 2”–48” forged steel three-piece trunnion mounted ball valves to meet the industry’s strictest specifications for a range of applications. Our products include ANSI Classes 150–2500 in carbon steel bodies with electroless nickel plating, stainless steel trim, or full stainless steel body and trim. Double block and bleed and emergency sealant injection fittings are standard, along with NACE and API 607 fire-safe.

Our commitment to quality is second-to-none and exceeds industry standards so that our customers receive only the best products available. Mill test reports are always available. Learn how to order our three piece trunion mounted ball valve today!


Size Range 2” – 48”
Pressure Range ANSI 150# through ANSI 2500# pressure class
Material Grades A105N, A182-F316 SS, A350-LF2, A350-LF6, and F51 Duplex
Port Sizes Full Bore, and Reduced Bore
Trim Materials 3MIL ENP, 316SS, and F51 Duplex
Seat Insert Material Devlon (PEEK and others available upon request)
Seal Materials HNBR 90 DURO, James Walker 101/985, FKM GLT, and AFLAS
End Configurations Raised Face (RF), Ring Type Joint (RTJ), Butt Weld (BW), and Flanged X Butt Weld

Standard Features

  • Three piece forged body and end adaptors
  • Anti Static device
  • Anti Blowout Stem
  • Pressure relief valve to avoid cavity overpressure when applicable
  • Emergency built-in stem and seat sealant injection system
  • API 641 Fire Safe, MR-0175 NACE compliant, Fugitive Emissions compliance per API 641

Valve Functionality

  • Double Block and Bleed (DB&B)
  • Double Isolation and Bleed (DIB-1 or DIB-2)

Seat Design Features

Design Standards

  • B16.34   
  • B16.10   
  • B16.5   
  • B16.25   
  • B16.47   
  • API 607 Fire Safe
  • API 641 Low Fugitive Emmisions Compliance
  • CSA Z245.15.2017   
  • API 6D

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