ICV Defender Integral Check Valve



McGuire is assisting the backflow protection profession and the plumbing industry with a valve that provides peace of mind with added protection of the potable water supply,

Julius Ballanco, P.E., CPD, FASPE, JB Engineering and Code Consulting, P.C.

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An independent analysis of McGuire's integral check valve series, ICV Defender. View, share, and print from any device.

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McGuire's mechanical integral check valve was designed to protect the buildings water supply.

Ideal for jobs such as:

  • Healthcare
  • Education
  • Hospitality
  • High-use public facilities

Designed to be an effective solution as a last line of defense against reverse flow and cross-connection contamination that results in harmful bacteria known to contaminate water systems.



The ICV Defender valve is a spring actuated integral check valve manufactured to McGuire's heavy pattern angle stop specification. It is completely serviceable and requires no third-party components. Available in IPS, sweat and compression connections both wheel handle and loose key. Backed by a 3-year warranty and IAPMO and NSF/ANSI 61 & 372 certified. Patent pending.