Spectropur Purge block SBE3
Product Features
- Purge block for hazardous gases and ultra high purity gases from grade 6.0
- Minimized purge volume of only 2,6 cm³
- Capillary tube allows purging into the cylinder valve
- Metal-to-metal seal to atmosphere
- All gas-wetted parts made of stainless steel SS316L, Hastelloy C276 and PCTFE or PVDF respectively
- Fully functional even when valves are evacuated
- Minimum particle generation, as no parts are exposed to friction and no spring is in the gaswetted area
- Embedded soft seat seal made of PCTFE permits frequent operation without loss of tightness
- Modular design for easy replacement of internal parts
- Clearly legible position indication (on/off)
- Electro-polished surfaces (gas wetted)
- 100 % Helium leak tested
- Shorter purge cycles due to minimized dead space
- Assembly in clean room class ISO 5.0
Technical Data
Working pressure
Manual valve: max. 300 bar
Pneumatic valve: 25 / 100 / 200 / 300 bar
Pneumatic valve: 25 / 100 / 200 / 300 bar
Materials
Body: stainless steel 1.4404 (SS 316L)
Diaphragms: Hastelloy C276
Other gas wetted parts: stainless steel 1.4404 (SS 316L)
Valve seat: PCTFE or PVDF
Diaphragms: Hastelloy C276
Other gas wetted parts: stainless steel 1.4404 (SS 316L)
Valve seat: PCTFE or PVDF
Surface roughness
Rₐ,max ≤ 0,25 µm
Rₐ,Avg ≤ 0,18 µm
Rₐ,Avg ≤ 0,18 µm
Leak rate
(to atmosphere) 1 x 10⁻⁹ mbar l/s He
(via seat) 1 x 10⁻⁶ mbar l/s He
(via seat) 1 x 10⁻⁶ mbar l/s He
Cᵥ-valve
0,13 (kv = 0,11)
Nominal size
DN 3
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