Ball Valves

Severe Service

Union Tech’s Z1 Severe Service Ball Valves

Union Tech’s Severe Service Uni-Body Power Ball Valve is a one-piece, metal seated ball valve engineered and constructed for dependable zero leakage performance in high-pressure, severe service applications in power generation, steam, water treatment, oilsands, and chemical plants.  The mate-lapped ball and seats provide metal-to-metal zero leakage.

Features Include:

  • 4 Year Limited Warranty
  • Spring loaded upstream seat for constant seat loads
  • Blowout proof stem
  • Live-loaded anti-extrusion Stem Packing
  • Steel dowel pins prevent side loading and bolt stress
  • Adaptor bushing provides stable stem support and smooth operation

Available In

  • 3/4” to 4”, Socket Weld and Butt weld Ends
  • Bore sizes 0.65” to 3”
  • ANSI Class 150 to 4500
  • One Piece Forged Bar Stock Design A105, F22, F91, and 316SS Body Materials
  • HVOF or Spray & Fused Chrome Carbide Coated Ball & Seat

Severe Service

Union Tech’s Z1LW Severe Service Ball Valves

Union Tech’s Severe Service Lightweight Uni-Body Power Ball Valve is a one-piece, metal seated ball valve engineered and constructed for dependable zero leakage performance in high-pressure, severe service applications in power generation, steam, water treatment, oilsands and chemical plants.  The mate-lapped ball and seats provide metal to metal zero leakage.  Available in limited size and pressure ranges compared to the Z1.

  • 4 Year Limited Warranty
  • Spring loaded upstream seat for constant seat loads
  • Blowout proof stem
  • Live-loaded anti-extrusion stem packing
  • Steel dowel pins prevent side loading and bolt stress
  • Adaptor bushing provides stable stem support and smooth operation

Available In

  • 1/2” to 1”, socket weld and butt weld ends
  • Bore sizes 0.4” to 1”
  • ANSI Class 150 to 1500
  • One piece forged bar stock design A105, F22, F91, and 316SS body materials
  • HVOF or spray & fused chrome carbide coated ball & seat
  • Design meets ASME TDP-1-2006 bore requirements

Severe Service

Union Tech’s Z2 Severe Service Ball Valves

Union Tech’s Severe Service Z2 Flanged Ball Valve is a two-piece, metal seated ball valve engineered and constructed to be fully customizable for dependable zero leakage performance in high-pressure, severe service applications in power generation, steam, water treatment, oilsands, mining, refining, and petro-chemical plants.  The mate-lapped ball and seats provide metal to metal zero leakage.

  • 4 Year Limited Warranty
  • Uni and Bi-Directional
  • Spring loaded upstream seat for constant seat loads
  • Blowout proof stem
  • Fire safe API 607 or API6FA
  • Field replaceable ball and seats
  • Live-loaded anti-extrusion stem packing
  • Steel dowel pins prevent side loading and bolt stress
  • Adaptor bushing provides stable stem support and smooth operation

Available In

  • 1/2” To 24”, customizable end connections
  • Full and reduced ports
  • ANSI Class 150 to 2500, NPT, SW, BWE, RF, RTJ, Hub
  • A105, F22, F91, 316SS and other body materials
  • HVOF or spray & fused chrome carbide coated ball & seat (others on request)
  • Design meets ASME TDP-1-2006 bore requirements

Severe Service

Union Tech’s Z3 Severe Service Ball Valves

Union Tech’s Severe Service Z3 Power Ball Valve is a three-piece version of the Z1 with bolted end connector pieces allowing for easy in-line center-body replacement. This metal seated ball valve is engineered and constructed for dependable zero leakage performance in high-pressure, severe service applications in power generation, steam, water treatment, oilsands and chemical plants. The mate-lapped ball and seats provide metal to metal zero leakage. 

  • 4 Year Limited Warranty
  • Spring loaded upstream seat for constant seat loads
  • Blowout proof stem
  • Live-loaded anti-extrusion stem packing
  • Steel dowel pins prevent side loading and bolt stress
  • Adaptor bushing provides stable stem support and smooth operations

Available In

  • 3/4” to 2.5”, socket weld and butt weld ends
  • Bore sizes 0.65” to 2.5”
  • ANSI Class 150 to 4500
  • One piece forged bar stock design A105, F22, F91, and 316SS body materials
  • HVOF or spray & fused chrome carbide coated ball & seat
  • Design meets ASME TDP-1-2006 bore requirements

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