Purge- and connection block SBE/2-MV1
Product features
- Minimized purge volume of only 1,3 cm³
- Metal-to-metal seal to atmosphere using metal diaphragms made of Hastelloy C276
- All gas-wetted parts made of stainless steel SS 316L, Hastelloy C276 and PCTFE or PVDF respectively
- Fully functional even when valves are evacuated
- Welded valve stem / diaphragm assembly
- No parts in the gas-wetted area exposed to friction or torsional stress provide minimum particle
- Embedded soft seat seal made of PCTFE or PVDF permits frequent operation without loss of tightness
- Modular design for easy replacement of internal parts
- Clearly legible position indication (on/off)
- 100 % Helium-leak-tested
- Assembly in cleanroom class ISO 5.0
| Technical data | ||
|---|---|---|
|
Materials Body: Diaphragm: Other gas wetted parts: Valve seat: |
stainles steel 1.4404 ESU (SS 316L remelted) Hastelloy C276 stainles steel 1.4404 ESU (SS 316L remelted) PCTFE or PVDF |
|
|
Surface roughness optional: |
Ra ≤ 0,25 µm Ra ≤ 0,18 µm |
|
|
Leak rate to atmpsphere: via seat: |
< 1 x 10-9 mbar l/s He < 1 x 10-6 mbar l/s He |
|
|
Pressure range Manual valve: LP-pneumatic valve: HP-pneumatic valve: |
200 bar 25 bar 200 bar |
|
| Cv-Wert |
0,24 (kv = 0,2) |
|
|
Nominal size |
DN 4 |
|
|
Cylinder connection |
- acc. to DIN 477 depending on gas type - acc. to other standards (e.g. BS, AFNOR, UNI) upon request |
|
Скачать инструкцию в формате PDF