Chase International
Chase International specialists in sourcing engineering parts

Dewrance Wedge Gate and Parallel Slide Gate Valves

Dewrance Wedge Gate and Parallel Slide Valves150 to 600 ASME

Parallel Slide and Wedge type gate valves, designed for use in power industry applications.

Features & Benefits:

Excellent Reliability

  • Internal Counterweight to help balance disc under low load conditions.
  • Direct deposited seats.
  • Tilting disc design for quick closing due to lower center of gravity.
  • Lightweight disc with minimum travel, for quick closing in less than one second.
  • Designed for optimum performance under all flow conditions.
  • Self-draining geometry.
  • Pneumatic Power Assistance acts directly onto disc, without leakage to help avoid inhibiting operation.

Low Cost Maintenance

  • Expanded graphite gasket pressure seal design.
  • Nitrided hinge pin, supported in nitrided bearings, helps give a low coefficient of friction and hard wearing surface for maximum performance.
  • Easy access through cover.
  • Longer seat life due to non-scuffing action of seat to disc geometry.
  • Simplified seat refurbishment, only requires lapping.

Improved Performance

  • Aerodynamic self aligning tilting disc design for low pressure drop characteristics.
  • Automatic self closure on flow reversal.
  • Inclined seat geometry, combined with conical seat and disc, for tight seal without scuffing.
  • No hinge pin gland helps avoid inhibiting performance.