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Rotarex · Specialty gas systems

Diaphragm low to high pressure line valve - VD

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+90 553 213 45 39

Manufacturer product images · for reference

Diaphragm low to high pressure line valve - VD — manufacturer product image

VD Diaphragm seal valve are fully compatible for all specialty gas applications . With versions available for 50, 200 and 300 bar inlet working pressure, the VD series valves come with one single design that offers multiple connection options so users can easily configure them to their exact requirements. An ergonomic shut-off handwheel delivers quick actuation and is marked with clearly visible open/close indicators to help improve safety. It has high leak tightness thanks to its diaphragm sealing.

Key features
  • Hastelloy diaphragm for tightness and gas compatibility
  • Compatible with all specialty gas applications up to purity 6.0
  • Ergonomic shutoff valve handwheel delivers quick actuation
  • Multiple configuration options (1/4 NPT, G3/8, etc.)
  • With rear threads for panel mounting
  • 3 versions: 50, 230 and 300 bar inlet working pressure
  • Clearly visible open/close indicators for improved safety
  • Dedicated food-grade version with full material compatibility according to EC1935/2004 available

Specialty gas systems

Technical specifications
BrandRotarex
CategorySpecialty gas systems
Ports¼ NPT : FF, MF or FM G3/8: FF
Weight310 Gr
DiaphragmHastelloy®
Leak rate10 -8 M bar l/s
Seat sealPCTFE
Oxygen useOk up to 310 bar (brass version only)
Bottom taperedOK 2x M5 at Ø18mm
Inlet pressure50 / 230 / 300 bar
Seat orifice sizeØ 4mm
Temperature range-20 to +60 °c
Flow coefficient (kv)0,17 Kv / 0,2 Cv

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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