High pressure & high flow UHP cylinder valve – D339S
D339S valve is designed for keeping the highest level of purity of UHP, corrosive, reactive and toxic gases. No particles are generated in the gas wetted part thanks to the tied diaphragm technology. The D339S is also available with the new Open/close indicator from Rotarex Puretec.
Key advantages
  • Tied diaphragm design with minimal gas wetted volume
  • Combined soft and metal seat design with low permeation rate
  • Patented operation mechanism
  • Threaded weep hole for pipe away connection
Gas TypePure & Ultra-pure
ConnectionsAccording (inter-)national standards, customer specifications
Working pressure200 bar
Flow rateCV=0.55
Temperature range-40 to +65 °c
Body materialsStainless steel 1.4435 (AISI 316L), Hastelloy® C22
Leak rate1.10-8 M bar l/s
Seat orifice size6 Mm
Markingπ0029 (according to TPED), 3 stars, valve number, manufacturing date
Downloadable catalogs, brochures
  • Download
    Puretec overview
    Last update: Jan 15, 2024
    Available in: en
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