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Rotarex · Specialty gas systems

Diaphragm low pressure line valve - VM20

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+90 553 213 45 39

Manufacturer product images · for reference

Diaphragm low pressure line valve - VM20 — manufacturer product image

VM20 is a low pressure shut-off valve for various pure gases. It has high leak tightness thanks to its diaphragm sealing.

Key features
  • Hastelloy® diaphragm for tightness and gas compatibility
  • 3 versions available : «Straight», «Right-angle» and «Wall-mounted»
  • O2 application compatible
  • Many inlet /outlet fittings available

Specialty gas systems

Technical specifications
BrandRotarex
CategorySpecialty gas systems
PortsG3/8 (inlet/outlet)
O-ringEPDM
Weight± 0,95 kg
DiaphragmHastelloy®
Leak rate10 -8 M bar l/s
Seat sealPCTFE / EPDM
Oxygen useBrass: OK / Stainless steel: only E / M versions with side inlet
Bottom taperedOK
Inlet pressure50 bar
Flow coefficientCv 0.14 / Kv 0,12
Seat orifice sizeØ 4 Mm
Temperature range-20 °C to +50 °C / -4 °F to +122 °F

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.

More images
Diaphragm low pressure line valve - VM20 — 1
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Diaphragm low pressure line valve - VM20 — 6
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Specialty gas systems

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