Direct acting PRV Mod. VRCD
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For further information please consult us at: www.comeval.es
Valves with fusion/powder coated exterior paint require flat washers to be installed
under the flange nuts when installing the valve to the pipeline flange, to prevent the
paint from cracking or chipping.
Personnel involved in the installation or maintenance of valves should be constantly
alert to possible damages caused by an improper handling of the valve.
Description
The automatic direct acting PRV Mod. VRCD consists of a upstream pressure balanced single seat
globe pattern valve, piston actuated, and equipped with a spring located in the cover to impart the
force necessary for the proper working. The operating principle is explained on the technical
catalogue, for further explanations please contact us. The VRCD will automatically throttle and
modulate the water supply to maintain a pressure downstream, regardless of upstream pressure
fluctuations. The special design of CSA with built in self cleaning piston technology guarantees
long lasting performances with a dramatic reduction of the maintenance time, minimizing the risk of
friction and malfunctioning.
Handling and Storage
Lifting the valve improperly may damage it. Lift the valve with slings, chains or cables fastened
around the valve body or eyebolts if present, or fastened to bolts or rods through bolt holes in the
flanges. Do never lift the valve by the adjusting screw. If installation will be delayed, place valve
indoors in secure, weather tight storage. If temporary outside storage is unavoidable, make sure a
vermin proof rain cover is secured around/over the valve to keep off rain and mud. Skid and set the
assembly on a flat, solid, and well drained surface for protection from ground moisture, runoff and
pooled rain water. Do not leave the valve exposed to high humidity and excessive temperature
conditions.
Fusion/Powder Coated Valves
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