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1、REV.1Customer Service CentreDirect Line：0577-67311200Sales Department：0577-67315988-8111，8222 Ttechnical Department：0577-67315988-8555Fax：0577-67315333E-mail：handbook order no.：S2001-HBaoyi Valve GroupCopyright2001Printed in ChineseThe specification in this instruction is subject to change without n
2、otice.INSTRUCTIONProduct Name： Swing Cheek VlaveModel：H44H-25Nominal Diameter：DN50500Nominal Pressure：PN2.5MPaBAOYI GROUP CO., LTD. Address：OubeiThird Bridge Industrial Estate Wenzhou 325105Tel：0577-673159882. Cleanup the valve before installation, make sure the label and marks on the valves suit th
3、e use condition. 3. Valve must be installed according to the arrow direction. Contrary installation disallowed. Installation based on the convenience of operation and maintenance . 4. Fix the valve at a horizontal or vertical pipeline. If installed at the vertical line, make sure the flow arrow dire
4、ct upwards. Medium regular flow direction is from top to bottom. Malfunctions and Methods of Settlement FaultsReasonsEliminate ways The connection between body and bonnet leakage.1.Bolts loose or unevenness. 2.Flange sealing surface damaged or dirt. 3.Gasket unavailable.1.Equably tighten up the bolt
5、s. 2.Repair sealing surfaces or weed out the dirt. 3.Change gasket. Sealing leakage.1.Sealing surfaces dirt. 2.Sealing surface damaged.1.Cleanup the surfaces. 2.Repair the sealing surfaces. Disc turned inflexible1. Disc spindle dirt. 2. The close fit between disc and spindle damaged1. Clear away the
6、 dirt. 2.T Take apart to repair.-4-Swing Cheek ValveApplication and Specification Suitable for the non corrodible medium such as water, oil and gas etc. Worked as the one way check valve equipment auto control the medium flow direction. Standarditemdesignpressure & temperatureface to faceend flange
7、diametertest and inspectionstandardGB 12236GB 9131GB 12221HG 20596JB/T 9092Specification test objectstrength testhigh - pressure sealing testlow - pressure sealing test mediumwaterair unitMPaMPaMPa pressure class2.5MPa3.752.750.40.7applicant temperature-29425applicant mediumwater, oil etc.Action Pri
8、nciple and Structure 1. Under the fluid pressure, the disc rotates around the fixed axis of the valve. 2. Fluid flows from the inlet port to the outlet port. When the inlet pressure lower than the outlet pressure, in order to prevent fluid flowing backwards disc will be auto shut off under the affec
9、t of flow pressure difference and gravity of itself etc. 3. Simple structure. Suitable for the horizontal / vertical pipelines.-1-PN2.5MPaDNExternal DiameterConnection DiameterWTmmLHD0DD1D2bfZ-dKg50230160-165125992024-182265290175-1851451182228-182980310185-2001601322428-1838100350220-2351901562428-
10、2261125400248-2702201842628-2696150480276-3002502112828-26132200550350-36031027430212-26213250650410-42537033032212-30297300750430-48543038934216-30372350850518-55549044838216-33415400950560-62055050340216-364804501025582-67060054842220-366105001150618-73066060944220-36920Main Part Material Part Nam
11、eMaterialPart NameMaterial Body, BonnetWCB/25Bolt/Nut35CrMo/45Disc, SeatWCB/25SealFlexible graphite/304 Hinge pin2Cr13 Preservation, Installation, Use and Maintenance Attention 1. If no use, Use the covers to stuff both ends of the valve passage and put the valve in the dry and ventilated room. Always check, weed out dirt and coat the exposure surface with anticorrosive paint are necessary for long preservation. -3-Mainly External Diameter and Connection DiameterDrawing-2-
