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A pressure relief valve characterized by rapid opening or closing or by gradual opening or closing, generally proportional to the increase or decrease in pressure.
It provides equations, tables, and guidance to help with the proper application and sizing of pressure relief valves. The handbook is a technical reference for engineers working with pressure relief valves.
Relief and Sequence Valves Pressure relief valves mount between the pump and valve system to protect against overloads. A suitable pilot valve may be used to “vent” the balanced piston relief valve when the system does not require power. This venting unloads the pump through the relief valve at low pressure, avoiding energy waste and
Each relief valve incorporates a vent port that can be connected to a separate pilot control valve to remotely control or unload system pressure. Two types of valve are presented in this catalog: CG2V-***, 10 series: relief/sequence valve with integral manual adjustment of pressure setting. CG5V-***, 11 series: relief valve with
Crosby pressure relief valves described in this instruction are manufactured in accordance with the requirements of aSMe Boiler and Pressure vessel Code, Section viii. Capacities are certified by the National Board of Boiler and Pressure vessel inspectors. engineering Doc. #iS-v3117a. Emerson.com/FinalControl. 2017 emerson. all rights reserved.
This pressure relief valve is designed to protect equipment from overpressure. The valve should be handled with care, not subjected to heavy shock loads and protected to prevent contamination from getting inside. It should be installed correctly per ASME boiler and pressure vessel code requirements, where applicable.
The function of a pressure relief valve is to protect pressure vessels, piping systems, and other equipment from pressures exceeding their design pressure by more than a fixed, predetermined amount.
