圣诞节的代价：不锈钢架旋转控制好

If buy the products before Christmas, you will get Christmas price! Stainless steel rotary control valve Rotary disc Body: stainless steel sealing: hard alloy or hard alloy+stainless steel Specification: SizeA(mm)B(mm)C(mm)D(mm)E(mm)K1(mm)K2(mm)F(mm)G(mm)H(mm)1"18626189.5381333203352191082831.5"34444297624453483502541503202"33343196624453683742541653372.5"345462101.569351.54004282831783773"308450123.562550.54124403452004164"341506132714544204423802204345"587777167.51134454535004802805116"524762153980684805344762795688"673965182.512057153559758534366510"831120023217057563070673740674712"965136625519287074083090547091014"11051572300.52232648729529805341078 The difference between rotary valve and general valve The problem during the projectThe character of the general valveSolution of rotary valveResultSealing rapidly wearingsealing and medium always keep touth on the same pointRotary valve disc,disc and seat can self-abrasive each otherDuring the use life, the disc and seat the more abrasive, the better cooperate,the good sealing effect.After valve setting, leakage rate quickly exceed the requirements.Only keep the strict seal after settingface sealed,self-rotatry,self-abrasive and rockwell hardness reach86.5 hard seal.After the setting, the valve can keep long effect seal.Material pile, miscellany enter between packingsSeat do not have self cleaning ability or under pre-pressurebig pre-pressure,shape edge of disc and flat seatPile material can be cut clean on the seal face.The material flowing case the seat surface ablate.valve plug enbossment or the change of the flow cause valve switch change the flow direction quicklyFlat sealing surface is perpendicular to the direction of flow lines, back and forth movement does not dramatically change the direction of flow linesGreatly reduce the impact of the material thereby reducing erosionleakThe valve stem extruded or scratched O type ring and packingSpring load bearing packing, non-lifting movement revolving body axis valve lever as well as dual axle sleeve The better counter-balance pressure,the temperature change,case the packing maintain uniformity pressure,and counter-balanced the side force to the packing destruction of the stem,reduce the maintence service time,enhance operating efficiencyHot lockThe different material heat expansion rate, causes the common difference coordination not to matchThe valve disk and the valve disk actuate to load the spring, smooth valve stem, non-thread structureCompensate to the vibration and termal loadExcessive pressure drop, the flow rate decreasesReducing flow channelfull port flowFluid flow without throttling, select the small size valve become possible