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Pressure Relief Valve (PRV) A pressure relief device designed to actuate on inlet static pressure and to reclose after normal conditions have been restored. It may be one of the following types and have one or more of the following design features. A. Restricted lift PRV: a pressure relief valve in which the actual
View and Download MERCER 9100 Series manual online. DIRECT SPRING OPERATED PRESSURE RELIEF VALVE. 9100 Series control unit pdf manual download.
The pilot control valves use system pressure to keep the main valve closed. System pressure is transmitted through the pressure pickup from the inlet of the main valve, through the pilot control and into the dome of the main valve. The system pressure exerts force upon the top of
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.
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
These two-stage pressure relief valves (based on Vickers type CG2V valves featured in catalog 2323) o˚er extensive application possibilities through their ability to control the pressure setting in proportion to an applied electrical input (up to a pressure limit which is manually adjustable and lockable). Two model types are available KCG-6/8
