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DIN Lift Check Valve

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DIN Lift Check Valve, Design EN 13709, Face to face EN 558-1, End Flanges EN 1092-1, Butt Welding ends EN 12627
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Product Description

DIN Lift Check Valve

Applicable Standards:               
Design EN 13709
Face to face EN 558-1
End Flanges EN 1092-1
Butt Welding ends EN 12627
Inspection and test EN 12266-1


Size Range: DN15~DN400
Pressure Rating: PN16, PN25, PN40
Temperature Range: -50°C~650°C

Design Description:
- Bolted Bonnet and Pressure Seal
- Seat in stellite or 13%Cr
- Flange Ends
- Buttwelding Ends
- Spring Load
- One piece body
- Unidirection

BrandDIDTEK
StructureCheck
Valve MaterialDidtek provide cast steel, stainless steel, special alloy, CI, DI etc
Valve TypeDidtek Produce Check Valve
Valve Test100% quantity tested before delivery
Valve Guarantee18 months after shipments and 12 months after installed
Valve StructureLift Check Valve
Valve Delivery15 - 30 days
Valve SampleSample Available by Didtek Valve
Valve ColorCustomer request
Valve PackingPlywood Case for Check Valve
MOQ1 Set
Valve CertificateAPI6D/CE/ISO9001/ISO14001
Place of OriginZhejiang, China (Mainland)
Delivery Detail:Shipped in 15-30 days after payment
PortShanghai Or Ningbo
Payment TermsL/C,D/A,D/P,T/T, Western Union

Application & Function:
Didtek Lift check valve , or “non-return” valves as they are often called, are made in a variety of designs, including globe lift, piston, ball, swing, tilting disc, squib, flapper, etc. All serve the same function, which is to allow flow in one direction, while preventing flow in the other. The most common types of lift check  disc is spring-loaded, fully guided by the body bore and rests on the valve seat, integral with the body.

The valve is installed with the flow under the disc, such that the inlet line pressure will force the disc to “lift” off the seat and allow the line fluid to flow through the valve. Should the flow suddenly reverse itself, the disc will automatically and quickly, assisted by the weight of the disc and spring, be forced to the closed position, preventing the line fluid from returning. Some lift check valves have no spring and depend on the weight of the disc to start closure. These are called “horizontal lift check valves,” as they will only function properly when installed in a horizontal line. Spring loaded lift check valves may be installed in any position, both in horizontal and vertical piping applications. The spring also helps reduce noise, and minimize the effect of pulsating flow and “water hammer” lineshock.

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CONTACT US

Didtek Valve Group Co., Ltd
Address: No.1 Puyi Road, Oubei Town, Yongjia County, Zhejiang, P.R.China.
Cell: +86-18058825678
Tel: +86-57767378255
Fax: +86-57767338181
Skype: didvalve-sales
Email: sales@didtekvalve.com

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