Disc Check Valve

Description

The DCV1 disc check valve is of the wafer pattern designed to be sandwiched between flanges. It is suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate systems etc. Face-to-face dimensions conform to EN 558 part 1, series 49.

As standard it will be supplied with a metal-to-metal seat for use on steam applications. Where it is being used on oil, air, gas, and water applications, alternative seat material is available – see ‘Optional extras’.

Note: Wafer check valves are not suitable for use where heavy pulsating flow exists, such as close to a compressor.

Catalogue

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Optional Extras

  • Heavy duty springs (700 mbar opening pressure, up to DN65) for boiler feed applications.
  • Viton soft seats for oil, air and gas applications.
  • EPDM soft seats for water applications.

Standards

This product fully complies with the requirements of the Pressure Equipment Directive (PED).

Standard Shut-Off

Standard valves conform to EN 12266-1 rate E.

Valves conforming to EN 12266-1 rate D are available on request. Soft seated versions meet EN 12266-1 rate A, providing a differential pressure exists.

Certification

This product is available with a manufacturer’s Typical Test Report.

Note: All certification/inspection requirements must be stated at the time of order placement.

Sizes and Pipe Connections

DN15, DN20,DN25, DN32, DN40, DN50, DN65, DN80 and DN100.

Suitable for installation between BS 10 Tables ‘E’ and ‘H’, EN 1092 PN6, PN10, PN16, PN25, PN40; JIS 5, JIS 10, JIS 16, and JIS 20 flanges with the following exceptions:

Note 1: DN40, DN50, DN80, and DN100 – will not fit between JIS 5 flanges.

Note 2: DN65 and DN80 – will not fit between BS 10 ‘E’ flanges.

Operation

Disc check valves are opened by the pressure of the fluid and closed by the spring as soon as the flow ceases and before the reverse flow occurs.

SPECIFICATION