Jam tic mi juku valve ubedo piny mapire tek i juku valve. Piny ma jutiyo kudu pi juku valve ubedo ango? Wangeyo nia piny ma jutiyo kudu pi juku valve jupoko i dul aryo: cuma man piny ma juyubu ngo. Ma e piny eni utiye acaki ma nok ikum kit ma jutiyo kudu ku piny matung tung mi gwoko piny, man kit valve ma pol kare jutiyo kudu.
1. Rubber ma juyubu ku cing
Lembe ma dongo dongo pa rubber ma juyubu ku cing dhanu calu tek pa moo, tek pa lyethu man tek pa lyethu ber uloyu pa rubber ma juyubu ku cing. Pol kare, lyethu pa tiyo ku jamb tic ma juyubu utiye t≤150°C, man lyethu pa rubber ma juyubu utiye t≤60°C. Rubber jutiyo kudu pi cego globe valves,rubber seated gate valve, diaphragm valves,rubber seated butterfly valve, rubber seated swing check valve (nen valves), pinch valves man valves mukende ku pressure ma nok 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 lyethu t≤90°C man nominal pressure PN≤32MPa.
3. PTFE
PTFE pol kare jutiyo kudu pi globe valves,valves mi dhugola, ball valves, etc. ku temperature t≤232°C man nominal pressure PN≤6.4MPa.
4. Cast iron
Cast iron jutiyu kudu pivalve mi dhugola, globe valve, plug valve, etc. pi temperature t≤100°C, nominal pressure PN≤1.6MPa, gas man oil.
5. Babbitt alloy
Babbitt alloy jutiyo kudu pi ammonia globe valve ku temperature t-70~150°C man nominal pressure PN≤2.5MPa.
6. Copper alloy
Jam tic ma pol pa 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°C man pressure ma nok PN≤1.6MPa. Pol kare jutiyo kudu ivalves mi dhugola, globe valves,nen valves, plug valves, man mukende mapol.
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 i valve pi piny ma calu pii, yamo man petroleum ku lyethu t≤450°C man pressure ma nok PN≤32MPa.
8. Chromium-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, nitric acid man piny mukende ma lyethu t≤600°C man pressure PN≤6.4MPa, ma jutiyo kudu pi globe valve, ball valve, man mange.
9. Nitrided steel
Kite ma jutiyo kudu pol pa nitrided steel utiye 38CrMoAlA, ma etiye ku kero maber mi juku nyoth man kero mi juku nyai ingey carburizing treatment. Pol kare jutiyo kudu i ot tic mi mac ku lyethu t≤540°C man pressure PN≤10MPa.
10. Boronizing
Boronizing timo tic ikum piny ma juketho ikum valve nyo disc, man etimo boronizing surface treatment, piny ma juketho ikume utiye ku kero maber mi juku. Jutiyo kudu i station mi mac.
Saa mi cwalo: Jun-10-2022
