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  SHREYAS Check Valves are Bolted cover design up to 300# and above pressure seal design.
These valves are suitable for vertical as well horizontal lines.

These valves are applicable for oil, gas, water, refining, power and chemical, where the prevention of flow reversal is mandatory.
 Material Specification
  Body / Cover / Hinge      ASTM A 216 GR. WCB
   ASTM A 217 GR. WC1/WC6/WC9/WC11
   ASTM A 352 GR. LCB/LC3
   ASTM A 351 GR. CF 8 /CF 8M/CF 3/CF 3M/CN 7M
   IS 210 GR. FG 200/220/250/260
  Disc      AISI 410 (13% Cr.) /AISI 304/316/304L/316L/Alloy 20
  Seat      AISI 410 (13% Cr.) /AISI 304/316/304L/316L/Alloy 20
  Hinge Pin      AISI 410 (13% Cr.) /AISI 304/316/304L/316L/Alloy 20
  Gasket      CAF/Grafoil/S.S. Spiral Wound With CAF/Grafoil/P.T.F.E.
    Disc Lock Nut      A 194 GR. 2H/S.S. 304/316
  Stud & Nut      ASTM A 193 GR. B7/ A 194 GR. 2H/S.S. 304/316
  Wafer Design Plate Type Check Valve has short face-to-face dimensions and low weight allows a simple space saving installation between the companion flanges. The valves are suitable to mounting between weld neck or slip on type companion flanges of different standards.

They are specially developed for applications where a low-pressure loss is essential. Opening and closing of the valve will take place at an extremely low-pressure difference over the valve disc. The eccentric disc shaft combination with the disc seat guarantees a positive shut off returning media. Wafer check valves are becoming the preferred type of check valve for most applications, due to their compact design and relatively low cost.
Item Name:   Stainless Steel Screw-End Check Valve
Operating Pressure:   200 PSI WOG
Operating Temperature:   -20°C ~ 450°C
Dimensions:   1/4”~3”
  Features :
  •   Body Type: Single Plate, Short Type
  •   Suitable For Horizontal and Vertical Mounting
  •   Shorter overall length, mounting requires minimum space.
  •   Low Pressure Drop
  •   Easy to Install
  •   Less Weight
  •   Maintenance Free
  •   Seat Leakage: Zero Leakage, Tight Shut Off
  •   Temperature Range: -250 To + 2000 C
    Design Standard     API 6D
    Inspection & Testing Standard     API 6D
    Face To Face     As Per ANSI B 16.10
    End Connection     Wafer Type, Flangeless, Suitable to Mount Between Two Flanges.
    Size Range     1" To 24" 
    Pressure Rating     PN 16
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