Check Valve - Casted


SALIENT FEATURES :

  • Non Return Valve Body & Cover are made from high quality casting with liberal sections. The castings are precision machined for high performance.

  • Body Seat Ring & Disc machined to close Tolerances providing smooth action and accurate seating.

  • Seat Ring Screwed in to the body are replaceable type. Seal welded type Seat Ring & Integral Seat cab also be offered on special request.

  • Stellited Seat Ring & Disc also be offered on special request.

  • In built wear life for long duration in service.  

  • The Seat-rings are cylindrical bottom seated type having ample cross section for strength are provided with welded in and threaded Seat-rings will be supplied on request. In case of SS valves the Seat-rings are integral to Body.

  • The Body to Bonnet joint is a male & female in ASME 150#, 300# & 600# valves and ring joint is used in higher classes.

  • Check Valves meet the requirements of fugitive emission levels Shell category B as per MESC SPE 77/312


TECHICAL SPECIFICATIONS :

1) Manufacturing Standard : BS 1873 / BS 1868

2) Testing and Inspection Standard : API 598 / BS 5146 / BS 5148

3) Face to Face :  ANSI B 16.10 / DIN ND 16 / DIN ND 40

4) End Connections :

a. Flanged as per ANSI B 16.5 RF

b. DIN 2533 / 2543 / 2535 / 2545 / BS 1560


TESTING :

Primary Service Rating & Test Pressure

Class

Working Pressure

Temperature

      Hydro Test Pressure

Body

Seat

PSIG

BAR

°C

°F

PSIG

BAR

PSIG

BAR

150

150

10.3

260

500

425

29.3

300

20.7

300

300

20.7

454

850

1100

75.9

800

55.2

AIR TEST – SEAT – 102 PSIG / 7.03 BAR


OPTIONS :

Swing Check valves also can be supplied with Titling disc design, Dash pot arrangement and outside lever & weight design for use where control of the disc is desires.

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