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burkert 2731-00550435隔膜閥
burkert 2731-00550435隔膜閥 The diaphragm control valve Type 2731 consists of a pneumatically operated piston actuator, a diaphragm and a valve body made of investment cast stainless steel.
更新時(shí)間:2016-01-25
2731burkert 2731-00550435隔膜閥的詳細(xì)資料
burkert 2731-00550435隔膜閥 The diaphragm control valve Type 2731 consists of a pneumatically operated piston actuator, a diaphragm and a valve body made of investment cast stainless steel. burkert 2731-00550435隔膜閥 The actuator has been designed so that the stroke can be continuously changed. This makes a favourable characteristic possible for the continuous change of the flow.
特點(diǎn):
參數(shù):
Materials Body
Actuator
Cast stainless steel 316L/1.4435
PA polyamide (PPS on request)
Diaphragm materials EPDM (AB), PTFE/EPDM (EA)
EPDM (AD), advanced PTFE/EPDM (EU) and FKM (FF) on
request
Process medium For neutral gases and liquids, high purity, sterile
aggressive or abrasive fl uids
Viscosity Up to viscous
Surface fi nish
internal mechanical polished
(external cast surface)
On request
internal electro polished
(external cast surface electro polished)
(average surface fi nish)
Ra ≤ 0.8 μm
Ra ≤ 0.6 μm
Medium temperature
EPDM (AB), PTFE/EPDM (EA)
EPDM (AD), advanced PTFE/
EPDM (EU)
FKM (FF)
-10 to + 130 °C (steam sterilisation +140 °C for 60min)
-5 to +143 °C (steam sterilisation +150 °C for 60min)
0 to +130 °C (not recommended for steam)
Ambient temperature -10 to +60 °C
Control medium
(for coupling with a positioner)
Instrumental air class 3 acc. to DIN ISO 8573-1
Pilot pressure 5.5 to 7 bar with actuator sizes Ø80 to 125 mm
Pilot air ports G1/4 (stainless steel)
Flow characteristic See chart p. 2
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