Bailey Technical Catalogue - Safety Systems UK Ltd

C10 Pressure Reducing ValveThe C10 balanced pressure reducing valve range isdesigned for use on water/air (gas) applications andfor installations which have varying inlet pressures andcapacities. It is particularly suitable where positiveshut-off is required under ‘no flow’ conditions andwhere compact size and economy are essential.OPERATIONThe C10 pressure regulator is operated by a springloaded piston and has a balanced main valve whichensures that the outlet dead-end pressure isunaffected by changes of inlet pressure.The valve is opened by the load on the adjustingspring and closed by reduced pressure on theunderside of the diaphragm. Under normal workingconditions, the balance of these two forces gives thedegree of valve opening for the required reducedpressure.TECHNICAL SPECIFICATIONSizeConnectionMaterial15, 20, 25, 32, 40, 50 mm( 1 ⁄2, 3 ⁄4, 1, 1 1 ⁄4, 1 1 ⁄2, 2 inch)Screwed BSP parallel femaleBronze.Temperature Range -18 to 82°CMaximum Inlet PressureMaximum Outlet Pressure*27 Barg4.8 BargMinimum Outlet Pressure* 0.7 BargOutlet pressure should not be less than 10%of the inlet pressure.* Setting including rise at dead end (see pages 56, 73 and 75).FEATURES AND BENEFITSSPRING SELECTION• Cast bronze body and stainless steel seat forextended life.• Soft disc for positive shut-off.DEAD ENDPRESSURESETTINGRANGE (Barg)DEAD ENDPRESSURESETTINGRANGE (Psig)COLOURCODE• Integral strainer to maximise operability andincrease reliability.0.7 to 4.8 10 to 70 Only 1 Spring• Fully balanced piston - allows a constant outletpressure to be maintained, irrespective of varyinginlet pressure.• Simple design - enables the valve to be easilymaintained and serviced without removal from theline, using only an adjustable spanner andscrewdriver.• Self actuation/regulation - requires no externalpower source.• Single adjustable spring - only one spring covers theentire outlet pressure range.CE MARKINGFor liquid applications the C10 is in accordance withthe PED and does not require to be CE marked.The C10 is not available for use on CE certified airduties.51