Coil Options

• The gate is designed for opening status, which will not
  influence the water supply function under unstable inlet
  pressure condition.
• When the outlet pressure responds directly to the pressure
  control chamber and adjusts the setting pressure, it responds
  quickly and adjusts the pressure accurately.

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• Valve Body is made by Stainless Steel #316, suitable for fluid, and Vapor.
• The gate is designed for opening status, which will not influence the water supply function under unstable inlet pressure condition.
• When the outlet pressure responds directly to the pressure control chamber and adjusts the setting pressure, it responds quickly and adjusts the pressures accurately.
• Design of piston and disphragm improves the inability of sustaining pressure and leakage.

• Back Pressure (Sustaining) Valve:
  Installed inbranch pipe to maintain the Stable pressure of fluid inside pipe. When pressure exceeds
  setting valve, it will automatically release over high pressure.
• Pressure Relief Valve:
  Installed in branch pipe. When pressure exceeds setting valve, valve gate will quickly and fully open
  to release pressure. As pipeline pressure goes down to certain level, valve gate will close slowly.
• Appliedcondition of Back Pressure Valve:

The silent check valve is applied on lift pipe or fluid pipe with pressure. The valve gate,with restoring force, will be closed at suitable speed when pump is shut down to sparate the collision
and noise between the inertia fluid ( positive pressure ) and the back flow (negative pressure) caused by power off.

The silent check valve plays an important role on piping,especially applied on the outlet of the pump. The silent check valve applied on the outlet of the pum should be selected carefully, and it must be able to resist the highest presure, the largest water hammer effect
and the biggest fluid impact. if the flowing back and losing pressure or more serious, the damaged parts will fall on the blades and damage the pump seriously and hence loses more money.

To avoid the defects mentioned above, our company manufacture a
more practical and economical model, called
" FULL OPEN STYLE SILENT CHECK VALVE "

FEATURE

• The design of the valve is full flow lift type and water flow does not directly push the valve gate. Hence, the valve can work for a long time and have huge flow rate.
• The design work of plug is hang type and automatically locating. It can adjust the close position of the plug no matter high or low pressure.
• The desgin of plug is semi-round and can resist higher pressure.
• When the pressure is high, plug and seat work together to prevent the sealing from being pushed by the high pressure to lengthen the longevity of sealing.
• Test pressure: Stainless Steel : 35kgf/cm²
  Ductile Iron : 35kgf/cm²; Cast Iron: 21kgf/cm²
• Maximum applied pressure : Stainless Steel :20kgf/cm²
  Ductile Iron : 20kgf/cm²; Cast Iron: 12kgf/cm²
• Applied temperature : -15℃~18℃
• Vertical and horizontal installation is acceptable.

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