Rotarex · Specialty gas systems

High Pressure manual line valve for UHP gases – D639S

Manufacturer product images · for reference

High Pressure manual line valve for UHP gases – D639S — manufacturer product image

High Flow Line Valve - tied diaphragm double seal

Key features
  • Combined soft and metal seat design with low permeation rate.
  • Welded diaphragms provide a high leak tightness integrity
  • Tied diaphragm design which minimizes gas wetted volume to allow easy purging.
  • No moving components in the gas wetted area to not generate particles.
  • Secondary sealing to prevent the gas coming in contact with actuator in the case of diaphragm failure.
  • Threaded weep hole for leak test and pipe away connection (M4 thread), allows the connection to a leak detector.
  • Front and back panel valve fixation

Specialty gas systems

Technical specifications
BrandRotarex
CategorySpecialty gas systems
Marking3 stars, valve number, manufacturing date, Nominal pressure and flow direction, π0029 (if according to TPED)
Leak rate1.10 -8 m bar L/s
ConnectionsAccording (inter-)national standards, customer’s specifications
Body materialsSS AISI 316L (standard)
Working pressure200 bar
Nominal flow rateCV = 0.5
Seat orifice size6 Mm
Temperature range-40 to +65 °c

Product information and images are compiled from the manufacturer's own publications; they do not depict a Sedan Mühendislik installation. Technical data is confirmed before ordering.

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Specialty gas systems

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