Dewrance Tilting Disc Valves
A range of swing check and tilting disc check valves, designed
in accordance with ASME B16.34, for power industry services.
Features & Benefits:
Excellent Reliability
- Direct deposited seats hard-faced with Stellite® or Equivalent
- Tilting Disc design balanced for quick opening and immediate closing on flow reversal
- Lightweight disc with minimum travel
- Optimum performance underall flow conditions
- Self-draining geometry
Low Cost Maintenance
- Expanded graphite pressure seal design
- Nitrided hinge pin, supported in nitrided bearings, giving a low coefficient of friction and hardwearing surface for maximum performance
- Easy access through pressure seal cover
- Simplified seat refurbishment, only requires lapping
- Longer seat life due to non-scuffing action of seat to disc geometry
Improved Performance
- Aerodynamic self-aligning tilting disc design for low pressure drop characteristic
- Automatic self closure on flow reversal
- Inclined seat geometry combined with conical seat and disc for tight seal without scuffing
Typical Applications
- Main Steam Isolation
- Boiler Feed Pump Isolation
- Deaerator Recirculation
- Economizer Recirculation
- Spray Water Isolation
- Attemperator Spray
- Chemical injection