SS904L Swing Check Valve

NSV SS 904L Swing Check Valve

This NSV  swing check valve manufactured in high-alloy austenitic stainless steel 904L (UNS N08904), produced via precision sand or investment casting. Features excellent resistance to sulfuric acid, chloride pitting, and crevice corrosion. Designed for non-slam, low-pressure service with tight shut-off and long-term reliability.

Key Features

Construction: SS904L

Integral casting design: One-piece valve body ensures structural integrity

Swing-type disc: Precision-cast disc with balanced geometry for smooth operation, minimal backflow, and reduced water hammer

Seat sealing:  904L seat surface

Temperature range: -29℃ to +200℃ 

Size Range: 2" -16" (DN50-DN400)

Pressure Rating: 150#-600#

End Connection: RF Flange (ANSI B16.5, cast integral)

Design Standard: API 594, ISO 12176-2, EN 12516-2

Testing: Hydrostatic shell test and pneumatic seat test per API 598

Certifications: CE, PED 2014/68/EU, ISO 9001

Typical Applications

Hot concentrated;Seawater cooling & desalination systems;FGD slurry lines and absorber circuits;Chemical processing (phosphoric acid, acetic acid, organic solvents);Offshore platforms and marine engineering

FAQ

1. 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.

2. Q:How can I get a quote?

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).

3. Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.

4. 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.