Wet system valve assemblies CPF

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CPF Industriale SpA is pleased to be the first manufacturer to introduce to the European market the first valve complete of trim alarm, entirely produced in Italy, certified CE 0099 in conformity to the UNI EN 12259-2 norm. The wet valves are used in the water fire extinguishing systems with water presence upstream and downstream.  They mainly have two purposes: the first one is to allow the passage of the water in the event of break-up of one or more sprinklers, the second is the activation of an alarm that doesn't depend from power supply.  
Additional alarm systems can be implemented by using pressure switches.  
Wet valves characteristic is the extreme simplicity to access to the clappet for the inspection and for the starting. With the system idle, the water in the distribution pipelines maintains the disc of alarm valve  in closed position. With water's spillage from one or more sprinklers, the pressure in the pipeline decrease . Therefore  the pressure of the feeding water prevails and determines the automatic opening of the disc necessary to feed the working nozzles.
Once the fluid flows, the valve signals the opening of the sprinklers operating a hydraulic bell.  
With the use of the delay room of the possibilities of false alarms due to the normal pressure variations in the hydraulic network are eliminated. The purpose is that to protect the building, the people and the content from the danger of fire. 
It can cover up to 12.000 sqm. of surface in one fire compartment only and it can be fed both by a system of water pumping and  by the aqueduct network. 
C.P.F Industriale has decided to propose a preparation trim/wet valve at variable pressure with test valves of alarm muting in view to allow the  technicians to try the plant once installed getting  the test and inspection certification of the plant from the responsible persons.

PLANT  CONFIGURATION

* External screw/butterfly valve flat body shutter
* Wet valve alarm 
* Complete  test and alarm trim with accessories and manometers 
* Delay  chamber
* Water alarm pressure switch mod. PS10-1 
* Alarm hydraulic bell
* Preassembly  included

	1	Alarm hydraulic bell U.L listed composed by a light antioxidant gong,Water filter. Inlet 3/4”  female and 1”discharge outlet.
	2	Water alarm pressure switch with ½” connection
	3	C.P.F. AISI 303 stainless steel delay chamber complete  of corrosion resistant filter certified CE 0099 according to  UNI-EN 12259-2 standard
	4	Complete preassembled Trim version “ variable pressure” composed by galvanized malleable cast nipples, non return, muting and alarm tests valves.   Discharge 2” main valve. Two U.L. Listed  pressure gauge are Supplied to visualize the upstream and downstream valve pressure.
	5	C.P.F. alarm wet valve with grooved connections.   The same valve can be used both for systems with   4” (DN 100) pipes and  3” (DN 80) pipes using the joints and the reductions. Certified CE 0099 according to UNI-EN 12259-2 standard.
	C.P.F. industriale  S.p.a. can propose grooved and treaded fittings, Interdiction shutters, wafer butterfly or grooved connection valves and Its own sprinklers   certified CE 0099 according to  UNI-EN 12259-1 standard

1	Valve body and cover in spheroid castEN-GLS-400-18 Uni - EN 1563 painted
2	St-CW617N Clapet easy to disassemble for maintenance
3	EPDM Gaskets and rings with hardness 80 shores
4	TN-CW614N collar
5	AISI 304 stainless steel shaft
6	AISI 304 stainless steel spring
7	Galvanized steel screws