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PTFE Seat Wafer Double Disc Check Valve

PTFE Seat Wafer Double Disc 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...
Product Details

PTFE Seat Wafer Double Disc Check Valve

Product Application

Opening and closing parts by the media flow and power to open or close on their own, in order to prevent the backflow of the media called the check valve. Check valves are automatic valves, mainly for the medium one-way flow of the pipeline, allowing the media to flow in one direction, to prevent accidents.

Design Codes

Size Range

1.5"-36" (DN40-DN900)

Pressure  Rating For ASME

1500LB,2500LB,Suit For ASME/MSS/API Flange

Pressure  Rating For ISO

PN10,PN16,PN25,PN40,Suit For ISO Flange

Pressure  Rating For JIS

5K,10K,20K,Suit For JIS Flange

Body Material

Carbon steel, Stainless steel, Alloy steel, Bronze



Design Standard

API 594 and Manafacture's

End Facing


Structural Feature

1. Low volume, light weight, only 1/4~1/20 of those of traditional flanged check valve;

2. Integrated structure, simple and compact, in beautiful shape;

3. Smooth flow passageway and small fluid resistance;

4. Flexible action and good sealing performance;

5. Long service life and good reliability.

We welcome all the world customers to contact us for more cooperation.

With our years of technical knowledge and experience,we assure you,

Naibang will be one of your best parters in China.

Any interest,please do not hesitate to contact us.

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