Pnevmatični previdnostni ukrepi za izbiro ventila z nizko temperaturo
Raven tlaka: Izberite ustrezno raven tlaka ventila glede na dejanski delovni tlak. Kriogeni krmilni ventili morajo biti sposobni prenesti visoke tlake pri nizkih temperaturah, zato je treba izbrati ventil z visokotlačno oceno.
Način velikosti in povezave: Izberite ustrezno velikost ventila in način povezave glede na metodo velikosti in povezave cevovoda, da zagotovite, da je ventil lahko združljiv s sistemom plinovoda.
Izbor je še vedno kombinirano z dejanskim razmeram, naše podjetje poleg pnevmatske nizkotemperaturne ventila, proizvaja tudi električni krmilni ventil, pnevmatski kroglični ventil, električni kroglični ventil, pnevmatski ventil za metulje in ventil za električni metulj, ventil obloženega s fluorijem, ventil, obložen ventil, fluor, ventil s fluorijem, ventil, obložen s fluorijem, ventil, obložen s fluorijem, ventil, obloženo s fluorijem, ventil, obložen z metuljem, ventil s fluorijem, ventil , obloženo s fluorijem, ventil, obložen z metuljem, ventil, obložen s fluorijem, ventil, obložen ventil Fluor , itd
Telo ventila
Type |
straight cage type ball valve |
Nominal diameter |
DN15-400mm |
Nominal pressure |
PN16, 40, 64; ANSI150, 300, 600 |
Connection form: |
Flange type |
Body material: |
WCB, CF8, CF8M, etc |
Valve cover form: |
-40~-196℃ extended type |
Gland form: |
bolt pressing type |
Packing: |
flexible graphite, PTFE Valve inner assembly |
Spool type: |
pressure balance spool |
Adjustment characteristics: |
equal percentage, linear |
Internal materials: |
304, 304 surfacing STL, 316, 316 surfacing STL, 316L, etc |
Izvršni mehanizem
Model: |
Film type |
Film material: |
ethylene propylene rubber sandwiched nylon |
Spring range: |
20-100KPa, 40-200KPa, 80-240KPa |
Gas supply pressure: |
140KPa, 160KPa, 280KPa, 400KPa |
Air source connector: |
Rc1/4, Rc3/8 |
Ambient temperature: |
-30 ~ +70℃ |
Action form: |
gas open (reaction), gas close (positive action) |
Note: |
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①This type of large diameter or high pressure difference regulating valve can also be equipped with straight stroke piston actuators. |
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②If the ambient temperature is lower than -30°C, please contact the western technical personnel. |
Lastnina
Leakage amount: |
Metal valve seat: Complies with ANSI B16.104 Level IV |
Non-metallic valve seat: |
conforms to ANSI B 16.104 Class VI |
Accessories (as required): |
Position, filter pressure reducing valve, hand wheel mechanism, limit switch, solenoid valve, valve position transmitter, gas control valve, speed regulator, holding valve, etc. |