Zhejiang Naibang Valve Co.,Ltd
+86-577-67991298 sale@nipovalve.com


Check Valve

Dual Plate Check Valve Retainerless Design

Dual Plate Check Valve Retainerless Design

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

Dual Plate Check Valve 


Dual  Plate Check Valve is designed to operate with the minimum of flow restriction.

The twin spring loaded half disc operate with the pipeline flow and reseal back against the rubber disc seating providing a positive shut off against any back flow. The resilient seating prevent a slamming action.

Check Valves offer greater flexibility and low cost in most piping systems and moreover, of its light weight, it is so convenient to install and has smaller face to face dimension than conventional swing check valve.

These valves can be supplied to match the international standards of flange (DIN, ANSI, JIS & BS).

Product Specifications

Standard: BS5153, EN12334,API 609

Working pressure: 10bar/16bar/25bar

Testing pressure:

Shell: 15bar/24bar/37.5bar

Seal: 11bar/17.6bar/27.5bar

Material: Ductile iron GGG40/50 or Cast IronGG25

Disc: Ductile iron/Aluminum Bronze, Stainless steel

Stem: Stainless steel

Seat: EPDM/Viton

Coating: Internal and external with fusion bonded epoxy coating min250μm or Liquid Epoxy painting


1. Light weight

2. Compact design

3. Easy installation

4. Non-slam principle of operation

5. Suitable for horizontal and vertical up flow

6. Good flow characteristic and less pressure drop

Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of dual plate check valve retainerless design 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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Address: No.43 Zhongxing Road, Tangtou Industrial Zone, Oubei Town, Yongjia County, Wenzhou, Zhejiang, China
Tel: +86-577-67991298
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