3S Series Sanitary Insert Check Valve

The 3S Series Sanitary Check Valve is an insert style, spring-loaded check valve designed for use in sanitary applications where 3-A certification, a minimum surface finish, or clean-in-place (CIP) is required.

3-A approved for use as a check valve or vacuum breaker, the 3S Series installs between new or existing sanitary ferrules, fittings, or tubing1, and includes 2 outer o-rings to provide a leak tight seal.

  • Use with liquid, gas, or steam
  • Can be installed horizontal, vertical up, or vertical down. No special option required
  • Standard 32 Ra internal finish with options 15 Ra finish available by request
  • The insert design requires no additional space by utilizing existing components, making it the ideal choice when retrofitting into existing systems
  • The open design allows the valve to be used in clean-in-place (CIP) applications
  • 3-A (58-02) approved for use as a check valve or vacuum breaker
  • Constructed of 316 Stainless with 3-A or USP Class VI elastomers

For additional information about Check Valves

What is a Silent Check Valve?
What is a Spring Loaded Check Valve?
What is a Poppet Check Valve?
What is an Inline Check Valves?

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