Temperature Pressure Relief Valve

Basic Info.CertificationGS, RoHS, CE, ISO9001Media Water Standard Standard Connection Mode External Thread Power Hydraulic Material Alloy Type Sleeve TrademarkSHSUOTETransport PackageWooden Carton/PalletSpecificationDN50~DN250OriginShanghaiProduct Descriptiontemperature pressure relief valve01.DescriptionPressure Relief Valve is a hydraulically operated, pilot- controlled, modulating valve designed to maintain constant upstream pressure within close limit. This valve can be used for pressure relief, pressure sustaining, and back pressure function in a by-pass system. In operation, the valve is actuated by line pressure through a pilot control system, opening fast to maintain steady line pressure but closing gradually to prevent surges. Operation is completely automatic and pressure settings maybe easily changed by adjusting screw on top of the pilot.02.Main parts&materialNo.PartMaterialChina stardard1bodyductile ironQT450-102bonnetductile ironQT450-103Seat ringstainless steelZG1Cr18Ni94Yokeductile ironQT450-105Stemstainless steel20Cr136Springstainless steel1Cr18Ni97DiaphragmrubberNBR+Reinforced nylon8Ball seatrubberNBR9Pipe fittingbrass/stainless steelHPb59-1/0Cr18Ni910Pilot Relief ValvebrassHPb59-103.Features001.Hydraulic control, no external driving force.002.The main valve has only one moving part and the failure rate is low.003.Diaphragm structure, no friction, high control sensitivity.004.The pressure behind the valve does not change with the change of the pressure in front of the valve.005.The pressure behind the valve does not change with the change of system flow;006.Good static pressure reduction effect;007.Wide range of pressure regulation after valve;04.DimensionsDNLØDØKHN-ØdØBPN10PN16PN25PN10PN16PN25PN10PN16PN25PN10PN16PN25502301651651651251251251774-Ø194-0194-019Ø99Ø99Ø99652901851851851451451452024-Ø194-0198-019Ø118Ø118Ø118803102002002001601601602198-Ø198-Ø198-019Ø132Ø132Ø1321003502202202351801801902438-Ø198-Ø198-Ø23Ø156Ø156Ø1561254002502502702102102202438-Ø198-Ø198-Ø28Ø156Ø156Ø1561504802852853002402402503338-Ø238-Ø238-Ø28Ø211Ø211Ø2112006003403403602952953104288-Ø2312-Ø2312-Ø28Ø266Ø266Ø27425073040540542535035537047812-Ø2312-Ø2812-Ø31Ø319Ø319Ø33030085046046048540041043053812-Ø2312-Ø2816-Ø31Ø370Ø370Ø389*35098052052055546047049055016-Ø2316-Ø2816-Ø34Ø429Ø429Ø448NOTE:1. *DN 125/350 use same internal as DN100/3002. AISI 304 factory standard material, consult factory for AISI 316 material05.Execution standardDesign standardCJ/T219, JB/T10674Connection standardGB/T17241.6Face spacing standardGB/T12221Inspection testing standardGB/T1392706.Technical parametersNominal diameterDN50~DN250(2"~10") PN10DN50~DN250(2"~10") PN16DN50~DN200(2"~8") PN25Nominal pressure0.3MPa~1.7MPa1.7MPa~2.1MPaOperating temperature0°C~85°CSeal test1.1PNShell test1.5PNSuitable mediumWater07.Operating principlePressure reducing sustaining valve is composed of hydraulic control valve main valve and pressure relief guide valve. It is a commonly used pressure control valve to control the opening and closing of main valve through the opening and closing of guide valve.The valve is suitable for the water supply network or building water supply system to relieve pressure, so that the system pressure is not higher than the valve set pressure value, to ensure the safety of the system pipeline or to maintain the minimum water supply pressure of the pipeline in front of the valve.2.Factory tour3.FAQQ1.How about your delivery time?A. Commonly, it is 5-10 days if in enough stock. It will takes about 20-30 days after receiving the deposit, the delivery time depends on the items and the order quantity.Q2: Are you trading company or manufacturer ?A: We are a manufacturer of hydraulic control valve,gate valve,butterfly valve,check valve,pressure reducing valve and other valve parts for Water plant, secondary water supply, municipal pipe network, reservoir, garbage treatment plant, subway and other industries in municipal engineering;Petrochemical, steel plant, power plant, shipbuilding and paper-making, bio-pharmaceutical, etcQ3: Can you produce according to our own drawings?A: Yes, please send your own drawing draft to us.OEM items are welcome. Q4: Do you provide samples ? is it free or extra ?A: Yes, we'd like to offer the sample for free charge but the freight will be on your charge. Q5: Do you have agent or representative abroad? A: We don't have any agents abroad up to now. If you have interests to join us as agent and enjoy more discounts.Just feel free to contact us then we can discuss more details. Q6: Can we print the LOGO on products?A: Yes, the OEM is available with the permission of our customers. Q7. what is your payment term?  A: T/T or L/C,if you want any other way,please contact us. Q8: what is your main market?A:Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe,  North America, South America, and so on. Q9: If products have some quality problem, how will you deal with?A: We will be responsible