Dewis model falf rheoli cryogenig niwmatig
Ystod tymheredd : Yn ôl y gofynion tymheredd isel penodol, dewiswch y model falf a all addasu i'r ystod tymheredd. Fel rheol mae angen i falfiau rheoli cryogenig allu gwrthsefyll tymereddau isel iawn, felly mae angen dewis falfiau wedi'u gwneud o ddeunyddiau arbennig.
Math o Falf : Yn ôl y senario cais penodol a gofynion rheoli, dewiswch y math o falf briodol, megis falf glôb, falf rheoleiddio, falf bêl, ac ati. Mae gan wahanol fathau o falfiau wahanol nodweddion rheoli ac ystodau cymwysiadau.
Modd Rheoli : Dewiswch falf rheoli niwmatig yn unol ag anghenion gwirioneddol, a all fod yn actio sengl (rheolaeth unffordd) neu'n actio dwbl (rheolaeth gadarnhaol a negyddol). Yn ôl gofynion y system reoli, dewiswch y modd rheoli priodol.
Gallwch ystyried y ffactorau uchod, gallwch ddewis y model falf rheoli cryogenig niwmatig addas. Mae gan ein cwmni gynhyrchion eraill hefyd: Falf Rheoli Trydan, Falf Bêl Niwmatig, Falf Pêl Drydan, Falf Glöynnod Byw Niwmatig , ac ati, Croeso i Ymgynghori.
Falf Corff
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 |
Mecanwaith Gweithredol
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. |
Eiddo
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. |