Waterman 4601001 Air Vacuum Relief Valve 1 Inch

Product Description

The WATERMAN 4601001 is a 1-inch air and vacuum relief valve designed to protect piping systems from negative pressure and air entrapment. This valve automatically releases trapped air during system startup and admits air to break vacuum conditions that can collapse pipes or cause water hammer. It is typically installed on water supply lines, irrigation mains, and similar pressurized fluid systems. Plumbers and irrigation technicians install this valve at high points in the piping where air tends to accumulate. The 1-inch port size suits standard residential and light commercial piping configurations.

The WATERMAN 4601001 is suited for installation on pressurized water distribution lines, irrigation systems, and plumbing supply mains. It performs dual duty: venting air pockets that reduce flow efficiency and admitting air to relieve vacuum conditions during system shutdown or pipe drainage. The 1-inch connection size makes it compatible with common pipe sizes found in residential and light commercial installations.

Key Features

• Dual-function design releases trapped air and admits air to break vacuum
• 1-inch port size fits standard residential and light commercial pipe
• Automatic operation requires no manual intervention during normal system cycles
• Helps prevent water hammer and pipe collapse caused by vacuum conditions
• Compact form factor suits installation at pipe high points

Compatibility

Designed as an OEM-style replacement or direct-install air and vacuum relief valve for 1-inch pressurized water supply and irrigation piping systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified irrigation technician in accordance with applicable local plumbing codes and IPC guidelines. Depressurize and drain the line before removing any existing valve or making connections. Mount the valve at the highest point of the piping run where air accumulation is most likely. Verify all connections are leak-free before returning the system to full operating pressure.

Technical Specifications

• Port Size: 1 inch
• Valve Type: Air and Vacuum Relief
• Order Increment: 1

Standard Information

• Brand: WATERMAN
• Manufacturer Part Number: 4601001