Pressure vacuum breakers. The pressure type vacuum breaker evolved from the AVB. There are a number of AVB installation restrictions due to the limits of the design. One of the AVB's limitations is ...

For the more expensive pressure breaker valves, a rebuilding kit costs about $30, and you can find them at home centers or nurseries. Start by turning off the water to the valve and removing the ...

: I have a problem with my sprinkler system. At the front of my house are two sprinkler pipes that come out of the ground and are connected by some type of valve. This valve is leaking and I need t ...

Refrigerants Valves & Pumps Ice Breaker: Evap. Pressure Regulators A Look at Familiar Refrigerant Flow Control Device. By Joe Marchese. February 3, 2014. A common accessory added to multiple ...

Ice Breaker: How Automatic Expansion Valves Work. By Joe Marchese. February 2, 2009. ... The evaporator pressure will rise - and because the closing force of the needle valve is the pressure of the ...