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burkert 2031隔膜閥 囯與 burkert The standard material of the actuator is PPS. With its favourable fl ow characteristics and zero dead volume, burkert 2031隔膜閥 囯與 burkert the valve housing enables high fl ow capacities and a variety of applications to be realized.

Port Connection DN 4-50
Body material Cast stainless steel 316 L/1.4435
Actuator material PPS (PA polyamide on request)
Pilot air ports Stainless steel 1.4305
 Diaphragm materials EPDM (AB), PTFE/EPDM (EA)
EPDM (AD), advanced PTFE/EPDM (EU) and FKM (FF)
on request
Medium 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)
 internal electro polished
 (external cast surface electro
 polished) (more on request)
(average surface fi nish)
Ra ≤ 0.8 μm
Ra ≤ 0.6 μm
 Media temperature
 EPDM (AB), PTFE/EPDM (EA)
 EPDM (AD), advanced PTFE/
EPDM (EU)
 FKM (FF)
-10 to +130 °C (steam sterilisation +140 °C for 60 min)
-5 to +143 °C (steam sterilisation +150 °C for 60 min)
0 to +130 °C (not recommended for steam)
 Ambient temperature
 Actuator size < 100
 Actuator size ≥ 100
+5 to +140 °C
+5 to +90 °C Briefl y up to +140 °C