Bidirectional Sealing Check Valve

NSV Valve Corporation is one of the most reliable manufacturers and suppliers of bidirectional sealing check valve in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy advanced bidirectional sealing check valve made in China here from our factory.

NSV Bidirectional Sealing Check Valve

This bidirectional sealing check valve prevents reverse flow from either direction and is equipped with a handwheel for manual operation. Designed for high pressure service up to Class 2500, it is available in all sizes. The body is cast in accordance with ASTM standards, with material options including WCB, LCB, WC9, CF8M, and other casting alloys suitable for a wide range of temperature and corrosion conditions.

Key Features

Bidirectional Shut-off Reliable sealing against backflow from inlet or outlet

Handwheel for Manual Operation Enables on-site control during commissioning, testing, or maintenance

Pressure Rating Up to 2500 LB Suitable for ultra-high-pressure critical isolation

Full Size Range Available From small bore to large diameter as required

Cast Body Construction Materials include WCB, LCB, WC9, CF8M per ASTM A216, A352, A217, and A351

Commonly used in boiler feedwater systems, turbine bypass lines, pump discharge headers, and process piping where dual-directional isolation and operational flexibility are essential.

FAQ

1.Q:I want to know how to contact the person in charge.

A: When you call representative call number of company(86-577-67378616), sales team will receive your call if there is no special situation. If you let us know your inquiry, we will put you through to the person in charge. If you need a personal phone number, you have to receive it from the person in charge directly after phone call.

2. Q: What's the valves warranty?
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.
3. Q: I want to be registered as your agency.?

A: Defined inspection and manager's approval shall be required for being registered as the company's agency. For specific application method, please consult with sales team. If you are registered as the company's agency, "Agency Certificate" will be issued.

4. Q:Are you manufacturer or trading company?

A: We're manufacturer,but our factory name is not named NSV due to we're professional in promotion NSV brand with best service,and also have sold to many end user success.

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