pressure-reducing valve

Also found in: Dictionary, Medical.

pressure-reducing valve, reducing valve

2. A valve that maintains a predetermined pressure by means of an automatic valve controller.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

pressure-reducing valve

pressure-reducing valveclick for a larger image
A device that reduces the pressure of fluids from a high value to a fixed lower value.
pressure-relief valve (PRV)
i. In pneumatic and oxygen systems, the valve that ensures that the pressure of air or oxygen entering the working system is reduced to the correct value.
ii. A valve that returns the fluid to the reservoir or manifold if its pressure rises above the predetermined value. See pressure regulator.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
The fundamental concept of operation in the two-position, three-way proportional pressure-reducing valve is based on barometric pressure feedback.
He says pressure-reducing valves are required by code when the street pressure is higher than 80 psi.
Since it takes into account fluid density, it has been established that velocity head (V2/2) is a better criterion than just pure fluid velocity in judging design adequacy in pressure-reducing valves. It is very useful in eliminating the destructive effects of high fluid velocity and noise/vibration problems.
The built-in pressure compensation also reduces costs by eliminating the need for external pressure-compensated flow controls, pressure-reducing valves or flow dividers.

Full browser ?