Swing Check Valve

[Non – Return Valve]

Bolted Cover Design, Flanged End

Suitable For Horizontal & Vertical Line

Dharmi Engineers Check Valves [NRV] are Swing Type and Bolted cover Construction. The one piece disc construction is securely fastened to the hinge by means of a lock nut & pin. The Disc is free to rotating type to avoid any other wear. The hinge pin offers excellent wear resistance properties.

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.

Dharmi Engineers also offer P.T.F.E. (PFA / FEP) Lined Ball Type / ”Y” Type & Rubber Lined Flap Type Check Valves for high corrosive application.

• Body & Cover 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 and replaceable type. Seal welded type Seat Ring & Integral Seat cab also be offered on special request.
• Stellated Seat Ring & Disc also can be offered on special request.
• In built wear life for long duration in service.
  

Design & Testing International Standard:

Valve Design                         : BS 1868 / API 6D

Pressure Testing                   : BS 6755-I

Face To Face                        : ANSI B 16.10

Flange Drilling                       : ANSI B 16.5 / BS 10 Table / DIN / IS / JIS Std.

Butt Weld End                       : ANSI B 16.25

Socket Weld End                  : ANSI B 16.11

Screwed End                         : ANSI B 1.20.1(BSP/NPT)

Material of Construction:

Body, Cover & Hinge Lever

☼ Cast Iron to ASTM A 126 Class B

                        IS 210 GR. FG 200 / 220 / 260

☼ Carbon Steel to IS 2062

☼ Cast Carbon Steel to ASTM A 216 GR. WCB

☼ Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M

☼ Stainless Steel to AISI 304 / 316 / 304L / 316L

☼ Hast Alloy B / C

☼ ASTM A 351 GR. CN 7M (Alloy 20)

Disc

☼ Cast Carbon Steel to ASTM A 216 GR. WCB + 13% Cr. Face

☼ Stainless Steel to ASTM A 351 GR. CF 8 / 8M / 3 / 3M

☼ Stainless Steel to AISI 304 / 316 / 304L / 316L

☼ Hast Alloy B / C

☼ ASTM A 351 GR. CN 7M (Alloy 20)

Body Seat Ring

☼ ASTM A 105 with 13% Cr. Face

☼ AISI 410 (S.S. 410 - 13% Cr. Steel)

☼ AISI 304 (S.S. 304)

☼ AISI 316 (S.S. 316)

☼ AISI 304L (S.S. 304L)

☼ AISI 316L (S.S. 316L)

☼ Integral

Wide Range of Industrial Check Valve

• Cast Iron Check Valve (Non Return Valve)
• Cast Carbon Steel Check Valve (Non Return Valve)
• Cast Stainless Steel Check Valve (Non Return Valve)
• Forged Steel Check Valve (Non Return Valve)
• Alloy Steel Check Valve (Non Return Valve)
• Alloy 20 Check Valve (Non Return Valve)
• High Pressure Check Valve (Non Return Valve)
• Swing Check Valve (Non Return Valve)
• Wafer Type Check Valve (Non Return Valve)
• Disc Check Valve (Non Return Valve)
• Lift Type Check Valve (Non Return Valve)
• Single Disc Check Valve (Non Return Valve)
• Rubber lined Check Valve (Non Return Valve)
• P.T.F.E. lined Check Valve (Non Return Valve)
• Non-Slam Type Check Valve (Non Return Valve)
• Zero Leakage Check Valve (Non Return Valve)