NSV DIN Standard 316 Wafer Check Valve

NSV DIN Standard 316 Wafer Check Valve

This is a DIN-standard wafer check valve made of 316 stainless steel, offering excellent corrosion resistance and chloride stress corrosion cracking resistance. Featuring a double-disc wafer design for smooth operation and reliable sealing, it supports applications ranging from municipal water to high-pressure industrial services, with pressure ratings from PN6 up to PN400.

Key Features

Body material: CF8M (316 stainless steel)

End connection: Wafer type

Type: Double disc

Pressure rating: PN6 / PN10 / PN16 / PN25 / PN40 / PN63 / PN100 / PN160 / PN250 / PN400

Size range: DN50–DN600 (2"–24") Note: Larger sizes typically limited to medium/low pressure

Operating temperature: -20°C to 180°C (up to 300°C with metal seat)

Suitable media: Water, steam, compressed air, mild acids/bases, oils, food-grade fluids

Performance Advantages

Dual-disc design reduces cracking pressure and minimizes water hammer; robust body construction supports PN400 high-pressure service;

Compact wafer style saves space in crowded piping; 316 stainless steel resists corrosion in chlorinated, marine, and chemical environments;

Available with metal-to-metal (zero leakage) or soft seat (bubble-tight) options.

Typical Applications

Municipal water mains, power plant high-pressure feedwater, petrochemical process lines, LNG terminals, offshore platforms, pharmaceutical sterilization circuits.

Quality Assurance

Hydrostatically tested per API 598 / ISO 5208. Supplied with EN 10204 3.1 Material Test Certificate (MTC 3.1). Cast body complies with EN 10216-2 or ASTM A351 CF8M standard.

FAQ

1. Q: What's the brand of your company can supply ?

A:NSV or OEM service.

2. Q:Does your company have any agent/distributor with the exception of China?

A: At present,we have agent in Indonesia,Singapore,Canada,Mexico,Iraq,and welcome contact us if you would like to join us.

3. Q:Does "NSV" valves have supply to any value end user?

A:Yes,,it just like PETROKIMIA GRESIK in Indonesia, BP Iraq,ESFAHAN MOBARAKEH STEEL In Iran etc.

4.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.

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