Gwoko valve ubedo piny mapire tek i valve zo, tic pare madit utiye mi juku pii ma mol,valvesealing seat julwonge bende ni sealing ring, etiye piny moko ma rwate ku piny ma iye i paip man juku piny ne kud mol. Ka valve utiye ka tic, piny matung tung utiye i pipeline, calu pii, yamu, moo, piny ma nyai, man mange, man seals pa valve matung tung jutiyu kudu ikabedu matung tung man ecopu lubo piny matung tung.
TWSValvepoyo wii nia piny ma jutiyo kudu pi ketho valve seals jupoko i dul aryo, niwacu piny ma jutiyo kudu ku cuma man piny ma jutiyo kudu ngo ku cuma. Non-metal seals pol kare jutiyo kudu i pipelines i rwom ma malu man pressure, ento metal seals utiye ku tic mapol man jucopo tiyo kudu i temperature ma malu. pressure ma malo.
Rubber ma juyubu ku cing dhanu ber uloyu rubber ma juyubu ku cing dhanu i yore mi jwigo moo, jwigo lyethu man jwigo lyethu. Pol kare, lyethu pa tic pa jam piny ma juyubu ku cing dhanu utiye t≤150°C, piny macol utiye t≤60°C, man rubber jutiyu kudu pi cego globe valves, gate valves, diaphragm valves, butterfly valves, check valves, pinch valves man valves mange ku nominal pressure PN≤1MPa.
2. Nylon
Nylon utiye ku kit pa friction coefficient ma nok man bedo maber pa corrosion. Nylon pol kare jutiyo kudu pi ball valves man globe valves ku temperature t≤90°C man nominal pressure PN≤32MPa.
PTFE pol kare jutiyo kudu pi globe valves, gate valves, ball valves, man mange ku lyethu t≤232°C man pressure ma nok PN≤6.4MPa.
4. Cast iron
Cast iron jutiyu kudu pi gate valves, globe valves, plug valves, man mange pi lyethu t≤100°C, pressure nominal PN≤1.6MPa, yamo man moo.
5. Babbitt alloy
Babbitt alloy jutiyo kudu pi ammonia globe valve ku lyethu t-70~150°Cman nominal pressure PN≤2.5MPa.
6. Copper alloy
Jam tic ma pol kare jutiyo kudu pi copper alloys utiye 6-6-3 tin bronze man 58-2-2 manganese brass. Copper alloy utiye ku tego maber man eber pi pii man lyethu ku lyethu t≤200°Cman nominal pressure PN≤1.6MPa. Pol kare jutiyo kudu i gate valves, globe valves, check valves, plug valves, man mange.
7. Chrome stainless steel
Kite ma jutiyo kudu pol kare pa chromium stainless steel utiye 2Cr13 ku 3Cr13, ma judaru juku man juyubu, man gitiye ku kero maber mi juku nyoth. Pol kare jutiyo kudu iwi valve pa pii, lyethu man petroleum ku lyethu t≤450°Cman nominal pressure PN≤32MPa.
8. Chrome-nickel-titanium stainless steel
Kite ma jutiyo kudu pol pa chromium-nickel-titanium stainless steel utiye 1Cr18Ni9ti, ma etiye ku kero maber mi juku lyethu, kero mi juku lyethu man kero mi juku lyethu. E ber pi yamo man piny mukende ma lyethu t≤600°C man pressure ma nok PN≤6.4MPa, man jutiyo kudu pi globe valves, ball valves, man mange.
9. Nitriding steel
Kite ma jutiyo kudu pol kare pa nitriding steel utiye 38CrMoAlA, ma etiye ku kero maber mi juku nyoth man kero mi juku nyai ingey carburizing treatment. Pol kare jutiyo kudu i dhugola mi kabedo mi mac ku lyethu t≤540°Cman nominal pressure PN≤10MPa.
10. Boronizing
Boronizing timo tic ikum piny ma juketho ikum valve body nyo disc body, man etimo boronizing surface treatment. Kabedo ma jugwoko i iye utiye ku kero maber mi juku nyoth. Pi kabedo mi kero pa mac.
Ka valve utiye ka tic, lembe ma umitu juketh i iye utiye ma e:
1. Tic pa valve ucikere ni temo ni neno nia etiyo maber.
2. Nen ka kabedo ma juketho i iye valve utur, man ilok nyo ilok nimakere ku lembe.
Saa mi kyewo: Jan-04-2023
