Ing pamagsara ning balbula metung yang importanting bage keng mabilug a balbula, ing peka sangkan na para aiwasan ing pamagtagas,ing balbulaing sealing seat ausan deng sealing ring, metung yang organisasyun na direktang makasuglung keng medium keng pipeline ampo pipigilan na ing medium a mamagus. Potang magagamit ya ing valve, atin yang miyayaliwang media ing pipeline, antimo ing likidu, gas, oil, corrosive media, atbp., at deng seal da reng miyayaliwang valve magagamit la kareng miyayaliwang lugal at malyari lang makibagay kareng miyayaliwang medium.
TWSValvepapaganaka na keka na ing materyales da reng valve seals malyari lang miyabe keng adwang kategorya, ilapin deng metal a materyales ampo deng e metal a materyales. Deng e metal a seal keraklan magagamit la kareng pipeline keng normal a temperatura ampo pressure, kabang deng metal a seal atin lang mas malawak a aplikasyun ampo malyari lang gamitan keng matas a temperatura. matas a presyur.
Ing synthetic rubber mas masanting ya kesa keng natural a goma keng pamaglaban keng langis, pamaglaban keng temperatura ampo pamaglaban keng kaagnasan. Keraklan, ing operating temperature ning synthetic rubber t≤150°C, natural rubber ya ing t≤60°C, at ing goma magagamit ya para keng pamagseal kareng globe valves, gate valves, diaphragm valves, butterfly valves, check valves, pinch valves ampo aliwang valves a maki nominal a pressure PN≤1MPa.
2. Nylon
Ing nylon atin yang katangian a malating friction coefficient ampo masanting a corrosion resistance. Ing nylon keraklan gagamitan de para kareng ball valves ampo globe valves na ating temperature t≤90°C ampo nominal pressure PN≤32MPa.
Ing PTFE keraklan gagamitan de para kareng globe valves, gate valves, ball valves, atbp. a maki temperatura t≤232°C ampo ing nominal pressure PN≤6.4MPa.
4. Cast iron
Ing cast iron magagamit ya para kareng gate valves, globe valves, plug valves, atbp. para keng temperatura t≤100°C, nominal pressure PN≤1.6MPa, gas at langis.
5. Babbitt alloy
Ing babbitt alloy magagamit ya para keng ammonia globe valve a maki temperatura t-70~150°Cat nominal pressure PN≤2.5MPa.
6. Copper alloy
Deng karaniwan a gagamitan a materyales para keng copper alloys ilapin deng 6-6-3 tin bronze ampo 58-2-2 manganese brass. Ing copper alloy atin yang masanting a wear resistance ampo masanting ya keng danum ampo steam na ating temperatura t≤200°Cat nominal pressure PN≤1.6MPa. Maralas yang magagamit kareng gate valves, globe valves, check valves, plug valves, atbp.
7. Chrome stainless steel
Deng karaniwan a gagamitan a gradu ning chromium stainless steel ilapin deng 2Cr13 ampo 3Cr13, na me-quench ampo me-temper, ampo atin lang masanting a corrosion resistance. Maralas yang gagamitan kareng balbula ning danum, singaw ampo petrolyu a maki temperatura t≤450°Cat nominal pressure PN≤32MPa.
8. Chrome-nickel-titanium stainless steel
Ing karaniwan a gagamitan a grade ning chromium-nickel-titanium stainless steel yapin ing 1Cr18Ni9ti, na atin yang masanting a resistensya keng kaagnasan, resistensya keng erosion ampo resistensya keng pali. Mayap ya keng steam ampo aliwang media na ating temperaturang t≤600°C ampo ing nominal pressure PN≤6.4MPa, at magagamit ya kareng globe valves, ball valves, atbp.
9. Nitriding steel
Ing karaniwan a gagamitan a grade ning nitriding steel yapin ing 38CrMoAlA, na atin yang masanting a corrosion resistance ampo scratch resistance kaybat ning carburizing treatment. Maralas yang gagamitan kareng power station gate valves a maki temperatura t≤540°Cat nominal pressure PN≤10MPa.
10. Boronizing
Ing boronizing diretsu yang magprosesu keng sealing surface ibat keng materyales ning valve body o disc body, at kaybat gagawan na ing boronizing surface treatment. Ing sealing surface atin yang masanting a wear resistance. Para keng power station blowdown valve.
Nung ing balbula magagamit ya, deng bage a dapat pansinan ilapin deng makatuki:
1. Ing pamag-seal ning balbula dapat yang subukan para siguraduan ing kayang pamag-perform.
2. Lawen nung ing sealing surface ning valve mesira ya, at ayusan o palitan me agpang keng sitwasyun.
Oras ning pamagpost: Jan-04-2023
