What is air relief valve?

Air Release Valves, or Air Relief Valve function to release air pockets that collect at each high point of a full pressured pipeline. This greater force opens the orifice whenever air pockets collect in the valve. Air Release Valves are essential for pipeline efficiency and water hammer protection.

What is the function of pressure relief valve?

The purpose of a pressure relief valve is to control or limit surges of pressure within pipelines, acting as protection for the system, and defending against instrument or equipment failure. They are usually present in clean water industries.

Can you adjust a pressure release valve?

Most valves have a locking nut. Once you unscrew this nut, you will be able to turn the adjustment screw, knob, or bolt. Adjust it until the pressure shown on your gauge reaches the desired level. For most residential purposes, that means a pressure below 80 psi.

How does a relief valve fail?

If your system is above pressure and your pressure relief valves have not released, this is likely a functional pressure relief valve failure. Contaminants, like dirt, lint, rust, sludge, or even the misalignment of the valve can cause the pressure relief valve to stick.

Where are air relief valves used?

An air release valve is typically used in water or irrigation schemes to ensure that any entrained air in the water system is automatically released in order to maximize the system performance. Entrained air pockets in pipes can cause excessive head loss and flow reductions if air is not effectively released.

What is a model 7000 pressure relief valve?

The Model 7000 is a pressure relief valve specifically designed to relieve excess pressure caused by pressure surges or temperature changes in all wet fire sprinkler systems.

What is a pressure relief valve and how does it work?

Both models relieve excess system pressure caused by surges or temperature changes and comply with NFPA-13 requirements that stipulate a pressure relief valve be installed on all gridded systems and downstream of all pressure reducing valves. Both models feature a bronze body, stainless steel spring, and flushing handle to remove debris.

Can a pressure relief valve be used with a testandrain valve?

The Model 7000 can be purchased individually or as part of the TESTanDRAIN Kit with all necessary drainage piping and connections for use with all AGF TESTanDRAIN valves. Pressure relief valves can be installed on a TESTanDRAIN valve without removing the valve from the line or draining the system completely.

What are the features of the model 7000?

Model 7000s feature a bronze body, stainless steel spring, and flushing handle to remove debris. The Model 7000 can be purchased individually or as part of the TESTanDRAIN Kit with all necessary drainage piping and connections for use with all AGF TESTanDRAIN valves.