Zhejiang Naibang Valve Co.,Ltd
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Products

Check Valve

Double Flanged Dual Check Valve

Double Flanged Dual Check Valve

Structural Feature Short structural length,only 1/4~1/8 of that of traditional flanged check valve; Low volume,light weight,only 1/4~1/20 of those of traditional flanged check valve; Quick valve disc closedown,low water hammer pressure; Applicable for and easily installed for vertical or...

Products Details

Double Flanged Dual Check Valve

Product Range:

End Connection: RF,RTJ

Working temperature: -196℃ - 560℃

Nominal diameter: 2" - 24"(DN15 - DN200)

Pressure range: Class150 - 900(PN16 - PN150)

Body material: Carbon steel, Stainless steel, Alloy steel, Bronze


Material for Check Valve: 

Item

Part Name

Materials

1

Body

DI, A216WCB, SS316, SS304, SS316L, CF8C, Carbon Steel, Duplex Steel, ALLOY,WCB, WC6, WC9, CF8, CF8M, CF3, CF3M

2

Stem

2cCr13, SS304, SS316

3

Gasket

Stainless Steel, 2Cr13, NBR, STL 

4

Disc

A216 WCB, Stainless Steel, WCB, WC6, WC9, CF8, CF8M, CF3, CF3M, EPDM, NBR, EPDM  

5

O-Ring

NBR, EPDM

6

Bonnet

Ductile Iron QT450-10, ASTM-A-536, GGG500-7



Technical specification

Structure formation

Double Flanged Dual Check Valve

Design standard

API 594

Face to face

ASME B16.0

Flanged ends

ASME B16.5

Test & inspection

API 598

Notes:

The sizes of valve connecting flange and butt-welding terminals can be designed according to customer’s requirement.



Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of double flanged dual check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.
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