American Granby irv50-100nl Pressure Relief Valve 100 Psi

Product Description

The AMERICAN GRANBY irv50-100nl is a spring-loaded, preset pressure relief valve built for water supply pump systems. Rated at 100 psi, the valve is factory set and non-adjustable, providing consistent overpressure protection without requiring field calibration. The brass body construction meets NSF/ANSI 372 lead-free requirements, making it suitable for potable water applications. Connections are 1/2 inch male threaded inlet by 1/2 inch female threaded outlet. Licensed plumbers and pump service technicians install this valve as a protective device on pump discharge lines to prevent system overpressure damage.

This relief valve is designed for use on shallow well, deep well, and submersible pump installations in residential and light commercial water supply systems. Its compact 1/2 inch configuration fits standard pump discharge piping without adapters in most setups. The spring-loaded, preset design allows straightforward installation with no on-site pressure adjustment needed, reducing installation time and the risk of improper setting in the field.

Key Features

• Factory preset at 100 psi — no field adjustment required
• Spring-loaded mechanism provides reliable, repeatable pressure relief
• NSF/ANSI 372 compliant lead-free brass body for potable water use
• 1/2 inch male threaded inlet x 1/2 inch female threaded outlet for direct in-line installation
• Suitable for shallow well, deep well, and submersible pump applications
• Sold in carton quantities of 10 for stocking convenience

Compatibility

Designed for use with shallow well, deep well, and submersible pump systems with 1/2 inch discharge piping requiring pressure relief protection at 100 psi.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off power to the pump and relieve system pressure before servicing or installing any pressure relief device. Thread sealant or tape rated for potable water should be used on all threaded connections. Do not attempt to adjust or modify the preset relief pressure setting.

Technical Specifications

• Type: Pressure Relief, Spring Loaded
• Set Pressure: 100 psi
• Inlet Size: 1/2 inch
• Outlet Size: 1/2 inch
• End Connection: Male Threaded x Female Threaded
• Body Material: Brass
• Lead Free: Yes
• Applicable Standard: NSF/ANSI 372
• Application: Submersible Pump, Shallow Well, Deep Well
• Packaging Quantity: 10 per Carton
• Warranty: 1 Year

Standard Information

• Brand: AMERICAN GRANBY
• Manufacturer Part Number: irv50-100nl