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Mega Valve & Fittings Sdn Bhd
5, Jalan Sungai Rasau E32/E,
Taman Perindustrian Berjaya,
40150 Shah Alam,
Selangor, Malaysia.



     Spectropur Regulator ---    Purge - and Connection Blocks    ---

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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

Other gas wetted parts:

Valve seat:

stainles steel 1.4404 ESU
(SS 316L remelted)
Hastelloy C276

stainles steel 1.4404 ESU
(SS 316L remelted)
Surface roughness
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