Industrial Equipment & Parts,Valve

Full Lift Open Safety Valves

Media: Water

Certification: ISO, CE

Temperature: Ordinary Temperature

Connection: Flange

Pressure: Adjustable

boiler Spring loaded full lift steam safety pressure relief valve with lever type Performance:The allowable tolerance of the set pressure: <+/-3% of the set pressureOverpressure:<10% of the set pressureBlowdown:<15% of the set pressureTightness: the valves have good seat tightness, conforms to API527 Features:1)The solid nozzle screws into the body. its maintenance is easy2)The shape of the disc holder has been designed to enhance the effect of the fluid thrust for an instant lift of the disc3)Blowdown control is provided with adjustable nozzle ring only4)The adequate materials and clearance between disc holder and guide, spindle and adjusting screw assures disc to lift successfully.5)The surface of both the disc and the nozle seat is depsited with STL. Excellent flatnes and surface finish of the seating surfaces by precision machining and lapping assure safety valve to have high degree of seal tightness and long usage6)The bllows of balanced bellows safety valve not only can avoid and effect of variable back pressure in the system, but also can protect spring and other trim components from corrosive media7) The choice of material is careful. The manufacture of the spring and the bellows has strict technological process. Each of them is tesed and checked strictly. SpecificationsSafety Valves/pressure safety valves, angle typeFull lift safety valveStandard safety valve for boiler, open bonnet,metal to metal seated, with plain type lifting device,Inlet: Flanged connection acc. to ANSI B16.5Outlet: Flanged connection acc. to ANSI B16.5 ApplicationsProvided as safety device for protection against excessive pressure in pressure vessels.Approved for gases, vapours and fluidsWorking temperatures: Lower than 300°CStandards ComplianceDesign and Manufacture: API RP 520Face to Face(end to end): API 526Test and Inspection: API 527Materials for main partsNOName of partMaterials A48Y-CMaterials A48Y-PMaterials A48Y-R1BodyWCB3043162Nozzle2Cr13/ 3043043163Adjusting Ring2Cr13/ 3043043164Disc2Cr13/ 3043043165Guide sleeve2Cr13/ 3043043166BonnetZG230-450ZG230-450ZG230-4507Spring50CrVA50CrVA coated teflon50CrVA coated teflon8Stem2Cr133043169Adjusting bolt452Cr132Cr1310CapZG200-400ZG200-400ZG200-400Sealing surface of material "Y" depositing stellite Note: If you're interest, please email us request for detail technical datas and dimensions. Factory CornerTest & InspectionFAQQ. Are you a trading company or a manufacturer?A: We are a manufacturer as you can see our workshop as above.Q. What is your payment term?A:Normally T/T 30% in advance, balance to be paid before delivery.Q: What is your main market?A:North America,Greenland,South America,Africa,Southeast Assia, Former Soviet Republics ,East Assia,and Europe.Q: Can I place sample order to your factory?A: Yes, Samples can be provided.Q:What kind of trade terms can you do?A:EX-WORKS,FOB,CFR,CIF,etc.Q: How long is your delivery time?A: Generally it is 5-7 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is accordijng to quantity.

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DIN 901/ 902 Spring Loaded Steam Safety Valve / Pressure Relief Valve

Media: Steam

Certification: CCC, ISO, CE

Temperature: Ordinary Temperature

Connection: Flange

Pressure: Adjustable

DIN 901 / 902 Spring Loaded Full Lift Safety Valve Application:DIN 901 / 902 Spring Loaded Full Lift Safety Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc., which the working medium is ≤350ºC.DIN Standard Safety Valve Features: Safety valves were first used on steam boilers during the industrial revolution. Early boilers without them were prone to accidental Explosion.Safety valves also evolved to protect equipment such as pressure vessel (fired or not) and heat exchangers. Safety valve term should be limited to compressible fluid application (gas, vapor, steam).The two general types of protection encountered in industry are thermal protection and flow protection. For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the safety valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure. DIN Standard Safety Valve SpecificationTypeNominal PressureBody MaterialNominal DiameterWorking Temp.901/902/911/912PN40/161.0619+NDN20/32-DN150/250-10C~450C901/911PN40/161.4408DN20/32-DN100/150-60C~400C DN20/3225/4032/5040/6550/8065/10080/125100/150120/200/150/250Throat Diameter do(mm) 1822293645587280100125Orifice Area Ao(mm)25439866110181590268840726362882512266Weight (Kg)8.510142028405380125165A full lift safety valve is one in which the disc lifts sufficiently, so that the curtain area no longer influences the discharge area. The discharge area, and therefore the capacity of the valve are subsequently determined by the bore area. This occurs when the disc lifts a distance of at least a quarter of the bore diameter. A full lift conventional safety valve is often the best choice for general steam applications.Full lift safety valve opening height is more than one fourth times of the flow diameter. it has an advantage of discharging greatly .