30" Wafer Dual Plate Check Valve

30" Wafer

The NSV 30" wafer type dual plate check valve is designed for large bore, medium pressure piping in water treatment, power, oil & gas, and municipal applications.The dual plate design with spring assist ensures responsive operation and effectively prevents backflow and water hammer.

ASTM A216 WCB cast steel

DN750 (30")

ANSI Class 150

-29℃ to +425℃ (suitable for steam, hot water, oil)

Wafer-style, dual plate

Designed per API 594, ASME B16.34, and ISO 5208

Municipal water mains, power plant cooling circuits, refinery utility water lines, fire pump discharge, district heating networks where reliable backflow prevention is essential.

1. Q:

A: We usually manufacture valves made of various materials such as cast Iron/ carbon steel,stainless steel,Alloy steel and industrial valves such as ball, gate, globe, check, bellows seal and ETC. For detail information, please refer to " Download>E-Catalog" of homepage.
2.

A:Its carton for small valves(sample) and plywood case(don't to fumigate).

3.
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.
4.

A: If you request quote by preparing the product spec you want to request specifically through "Contact us or Feedback" of homepage, we will send reply to you ASAP. If the contents of homepage are not available, you can inquire to us via phone(86-577-67378616) or fax(86-577-67372367).

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