High pressure UHP cylinder valve with Oleo-pneumatic actuator - D389S
D389S UHP cylinder is designed for keeping the highest level of purity of the gas. The seat closure force is increased thanks to its oleo-pneumatic actuator. The tight diaphragm technology allows no particle are generation in the gas wetted parts.
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
  • Strong closing force with the use of a hydraulic amplifier
  • Possibility to connect to a leak detector
Gas TypePure & Ultra-pure
ConnectionsAccording (inter-)national standards, customer specifications
Working pressure200 bar
Flow rateCV=055
Temperature range-40 to +65 °C
Body materialsStainless steel 1.4435 (AISI 316L)/ Hastelloy® 2.4602 (UNS N 06022)
Seat orifice size6 Mm
Leak rate1.10-8 M bar l/s
Markingπ0029 (according to TPED), valve part number, Manufacturing date, Connections, seat material, 3 stars
OptionsAccessories like mechanical and electronic position indicators are available on request
Dimensional drawings
Downloadable catalogs, brochures
  • Download
    Puretec overview
    Last update: Jan 15, 2024
    Available in: en
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