Welded Body Ball Valve

The Calvary Trunnion Mounted Welded Body Ball Valve is an excellent three piece all welded forged body design. It is durable for demanding requirements throughout the pipeline industry. With different trim options available, this valve can meet most specifications and handle the widest range of products and services within the oil and gas industries. Provable zero-leakage whether in the open or closed position provides the confirmation of seal integrity of both seats and achieving the double block and bleed feature. These features from this rugged design make it suitable for both common and more difficult applications.

Sizes:  6” thru 48”

Pressure Classes:  
150, 300, 600, 900, 1500

Operating Temperatures:    
-50F to +500F (-46C to +260C)

Available End Connections:

  • Raised Face Flanged
  • Ring Joint Flanged
  • Weld End Connection
  • Flanged By Weld End Connection


  • Fully Welded Body
  • Blow-out Proof Stem
  • Spring Energized Seats
  • Emergency Stem Lubricating Fitting
  • Metal or Soft Seated Double Block And Bleed Full Or Reduced Port Bore
  • Anti Blow-Out Trunnion Stem Design
  • Corrosion Resistant Low Friction Bearing Sealant Injection Fittings For emergency Stem Or Seal Sealing
  • ISO5211 Mounting Pad For Actuator Or Gear Operator
  • Removable Stem Seals Under Full Line Pressure In Fully Opened Or Closed Position
  • Self Lubricated Bearings
  • In Accordance With API 6D, API 6FA, BS 6755 And NACE 01-75 (Latest Edition)
  • Supported Trunnion Design Reduces Operating Torque
  • 8″ & Larger Valves Are Equipped With Lifting Lugs Two Sets Of O-Rings Plus Firesafe Stem Packing Prevents Leakage
  • Extensions for Above Ground Or Buried Service
  • Full Bore Thru Conduit
  • Fire Safe Design


Click here to download PDF for technical information.