Skip to content
IRV75NL lead-free brass pressure relief valve, 3/4 in inlet and 1/2 in outlet, visible body and spring housing.

IRV75NL 3/4" x 1/2" Lead-Free Brass Relief Valve, 75 PSI

Brand: American Granby, Inc
Save 25%
$20.18
$15.13
SKU IRV75NL
In Stock (1)

Notify me when back in stock

The IRV75NL is a lead-free brass pressure relief valve engineered to protect shallow, deep well, and submersible pumps by releasing excess pressure at a preset 75 PSI. Its compact configuration - with a 3/4 in inlet and 1/2 in outlet - plus a spring-loaded, pre-set design provides reliable, maintenance-free operation. Third-party certification to NSF/ANSI 372 verifies lead-free compliance for potable water systems.

  • Material: lead-free brass for corrosion resistance and potable water compatibility.
  • Size: 3/4 in (inlet) x 1/2 in (outlet); male-to-female threaded connections for standard plumbing fittings.
  • Set pressure: 75 PSI, spring-loaded and factory pre-set; non-adjustable to prevent tampering.
  • Application: designed for shallow, deep well, and submersible pump protection to relieve overpressure.
  • Certification & warranty: NSF/ANSI 372 certified for lead-free compliance; backed by a 1-year manufacturer warranty from authorized distributors.

Install the IRV75NL in-line with system plumbing following local codes and manufacturer guidelines. It is intended as a safety relief device - do not attempt to modify the preset pressure. Specification sheet and catalog are available on the product page for installation dimensions and part references.

Reviews

Frequently Asked Questions

What inlet and outlet sizes does the IRV75NL use?
The valve has a 3/4 in inlet and a 1/2 in outlet, with male-to-female threaded connections for standard plumbing fittings.
Is the IRV75NL adjustable after installation?
No. It is spring-loaded and factory pre-set to 75 PSI; the relief pressure is non-adjustable to prevent tampering.
Can this valve be used on potable water systems?
Yes. The IRV75NL is certified to NSF/ANSI 372 for lead-free compliance, making it suitable for potable water and pump protection.

Add a FREE Pair of Gloves to Your Order

Spend $35+ Add a FREE Pair of Gloves to Your Order Select Your Size