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Boiler Feed Check Valve

Brand: Spirax Sarco

The Spirax Sarco DCV3/B boiler feed check valve is designed specifically for use on boiler feedwater systems. 

It is a stainless steel disc check valve with a soft EPDM seat to ensure tight shut-off against boiler pressure, even under poor water conditions. 

The DCV3/B is normally installed between flanges in the boiler feed water line. 

Cast-in lugs on the valve body allow the valve to be centralised easily. Face-to-face dimensions conform to EN 558 part 1, series 49.

Designed and manufactured in accordance with BS 7438.

Shut-off standard meets EN 12266-1 rate A, providing a differential pressure exists.

Specifications

Brand

Body Design Conditions

  • PN 40

Maximum Body Design Temperature

  • 400° C

Minimum Allowable Temperature

  • -10° C

Maximum Boiler Pressure

  • 32 bar g.

Maximum Feedpump Pressure

  • 40 bar g.

Maximum Feedwater Temperature

  • 120° C

Maximum Feedwater Head

  • 6 m.

Approximate Opening Pressure

  • 0.8 bar g.

Designed for a Maximum Cold Hydraulic Test Pressure

  • 60 bar g.

Materials

  • Body: Austenitic stainless steel, WS 1.4581
  • Disc: Austenitic stainless steel, BS 1449 316 S11
  • Spring Retainer: Austenitic stainless steel, BS 1449 316 S11
  • Spring: Austenitic stainless steel, BS 2056 316 S42
  • Seat: EPDM
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