Coil Options

• Pressure sustaining valve is utilezed when installing pipes for users.
  It primaritly matches up with the minimum working pressure inside the tap
  water pipe, balancing up-stream and down-stream pressure during normalcy
  and emergency, and maintains constant pressure inside the pipe.
• Pressure sustaining valve can sustain the maximum working pressure inside
  the pipe when installed in water supply areas.

• 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.

• Installing pressure reducing valve directly in sub-pipe can reduce fluid pressure inside the pipe.
• Installing a filter in the inlet of pressure reducing valve can prevent block of valve gate casued by
  impurities and limescale.
• Installing pressure relief valve downstream pressure reducing valve can protect the system.
• While using screws to connect pressure reducing vlave, joints should be installed in the inlet and
  outlet to make maintainance easy.

• Direct-activated pressure reducing valve directly opens and closes the valve gate by the outlet pressure.
  When outlet pressure is under setting pressure, valve gate automatically opens.
  To make valve gate fully open, adjustable pressure range and setting pressure are relative points.
• A : Pressure drop needed for fully-opened valve gate = B/4 ,B=Adjustable Pressure Range
  Maximum-Minimum
  B: Adjustable Pressure Range ( = Maximun Minimum Adjustable Pressure Rang )
  C: Setting Pressure of Outlet
  P: Pressure of fully-opened outlet valve gate, P=C-A
  
  Example:
• Pressure drop needed for fully-opened valve gate for adjusting pressure range 3~9 kgf/cm² of
  direct-activated pressure reducing valve. A=B/4=9-3/4=1.5 kgf/cm²
  If the setting pressure of outlet is 6 kgf/cm² , pressure of fully-opened valve gate will be
  P=6-1.5=4.5 kgf/cm² ( Outlet pressure should go down under 4.5 kgf/cm² to make valve gate fully open )