Gate Valves

Frontier Valve's gate valves can be customized with a wide variety of options and features ensuring that you have the right fit for your project and industry.

Features and options

  • OS & Y bonnets may be of bolted, welded, or pressure-seal design
  • Handwheel operated (locking and hammer handwheel optional)
  • Optional actuator or gear operator mounting
  • Frontier standard is half stellite (seats). Full hardfacing, or none, is available.
  • Regular or full port
  • Full material traceability
  • Exotic materials as per request
  • Integral or threaded backseat
  • Knife or slide gate style available
  • Plain or flex gate wedge
  • RTJ or spiral wound gasket for body/bonnet connection
  • Soft seat insert available
  • Seats may be pressed, welded, or threaded
  • Bellows seal option available
  • Integral or welded flanges


  • Threaded
  • Socket weld
  • Socket weld by threaded
  • Flanged
  • Buttweld
  • Special end connections
  • Combinations of above


  • API 6D - Pipeline Valves
  • API 598 - Valve Inspection and Testing
  • ASME B16.5 - Pipe Flanges and Flanged Fittings
  • ASME B16.34 - Valves - Flanged, Threaded, and Welding End
  • ASME B16.10 - Face-to-Face and End-to-End Dimensions of Valves
  • API 600 - Bolted Bonnet Steel Gate Valves for petroleum and natural gas industries
  • API 602 - Steel Gate Valves for sizes DN100 and smaller for petroleum and natural gas industries.

Whatever your needs, we can design and fabricate a custom valve solution to meet them. Contact us today to get started.