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RCW Non Interlock Preaction System


The Globe Model RCW non-interlock preaction valve is a hydraulically operated external resetting differential latching style valve designed for use where quick opening and total flooding of sprinkler system piping is desired. The Model RCW valve is used as an automatic water control valve in non-interlock preaction applications. The Model RCW valve serves as the primary water control valve installed in the water supply to anon-interlock preaction sprinkler system incorporating automatic sprinklers with supervisory air monitoring the integrity of the system piping.


Instructional videos can be found here under the 'installation' category.


GFV-420_20190829CM (.pdf) Download


RCW Sell Sheet (.pdf) Download


The State of California's Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) requires manufacturers and distributors to provide special warnings to consumers for products that contain certain chemicals. The list, which must be updated at least once a year, has grown to include approximately 900 chemicals. Examples of chemicals on the list: alcoholic beverages, lead, nickel, wood dust, and Diesel/gasoline engine exhaust. Globe Fire Sprinkler cares about our customers' safety and hopes the information provided in our Proposition 65 warnings assist with your purchasing decisions. The appropriate warning labels are required for all physical and internet sales.

AutoCAD & Revit Files

GFV420- NIP (.zip) Download


Model RCW – 4 and 6-inch Automatic Water Control Valve: Where external resetting differential latching style valves are specified for use in preaction sprinkler systems they shall be specifically listed for such use. Automatic water control valves shall be ductile iron construction intended for use in vertical orientations. The bronze clapper assembly shall be mechanically seated by the pressure within the diaphragm holding the bronze plunger rod and stainless-steel roller arm in the set position against the clapper assembly. Water pressure release and operation of the valve is accomplished from the actuation of the dry pilot actuator or manual release. Automatic water control valves shall be rated for use at the maximum service pressure of 300 psi., and shall be UL listed and FM approved. Automatic Water Control Preaction Valve shall be Model RCW with appropriate releasing actuation Trim Kit; as manufactured by Globe Fire Sprinkler Corporation.


 WARNING:  Cancer and Reproductive Harm – www.P65Warnings.ca.gov.

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