BURKERT膜片阀2033系列采用无缝焊接
BURKERT膜片阀2033系列用于控制高纯度、无菌、侵蚀性或磨损性介质。这种阀门具有很小的死角体积，能够实现*的容器灌注和排空过程。阀体由一个锭块构成，该锭块无焊缝，由不锈钢制造而成。底部排放阀的法兰具有两个斜角。这种结构简化了其在容器中的定位和焊接过程。高品质的隔膜将临界性介质与伺服驱动装置密封分离。通过气动先导式阀（单个先导式阀、阀岛或控制头），可以控制气动的伺服驱动装置。控制功能 A，通过弹簧力在静止位置关闭。
BURKERT膜片阀2033系列技术参数：
Orifice | DN08 to DN100 |
Body material | Stainless steel 1.4435 acc. to BN2 / ASME BPE |
| Fe < 0.5% / C ≤ 0.03% |
Port connections |
|
Weld end | • DIN EN ISO 1127 / ISO 4200 / DIN 11866 Series B |
| • DIN 11850 Series 2 / DIN 11866 Series A |
| • ASME BPE / DIN 11866 Series C |
Clamp | • DIN 32676 Series A (DIN tube) |
| • DIN 32676 Series B (ISO tube) |
| • ASME BPE |
Surface finish (others on request) | Ra ≤ 0,5 μm (ASME BPE SF1) |
• inside mechanical polished |
|
| (external Ra ≤ 1.6 μm) |
• inside electro polished | Ra ≤ 0,38 μm (ASME BPE SF4 / DIN HE4) |
| (external Ra ≤ 1.6 μm) |
Diaphragm materials | EPDM (AB), PTFE/EPDM (EA) |
| EPDM (AD), advanced PTFE/EPDM (EU) and FKM (FF) |
| on request |
Actuator material | PPS (PA for actuator sizes ø 175/225 mm) |
Medium temperatures |
|
EPDM (AB), PTFE/EPDM (EA) | -10 to +130 °C (steam sterilisation +140 °C for 60 min) |
EPDM (AD), advanced PTFE/ | -5 to +143 °C (steam sterilisation +150 °C for 60 min) |
EPDM (EU) |
|
FKM (FF) | 0 to +130 °C (not recommended for steam) |
Ambient temperature |
|
Actuator size < 100 mm | +5 to +140 °C |
Actuator size ≥ 100 mm | +5 to +90 °C (briefl y up to +140 °C, -10 to +60 °C with PA actuator) |
Control medium | Neutral gases, air |
Pilot pressure max. | max. 7 bar, see table on page 2 |
