Body material | Version | End connections | O-ring material | Handwheel | |
V | LM20 | E | G | EPDM | 1/4 |
Diaphragm low pressure line valve - VM20
VM20 is a low pressure shut-off valve for various pure gases. It has high leak tightness thanks to its diaphragm sealing.
Key advantages
- Hastelloy® diaphragm for tightness and gas compatibility
- 3 versions available : «Straight», «Right-angle» and «Wall-mounted»
- O2 application compatible
- Many inlet /outlet fittings available
Specifications
| Seat seal | PCTFE / EPDM |
| O-ring | EPDM - Standard / FPM |
| Bottom tapered | OK |
| Diaphragm | Hastelloy® |
| Weight | ± 0,95 kg |
| Leak rate | 10-8 M bar l/s |
| Temperature range | -20 to +50 °c |
| Seat orifice size | Ø 4 Mm |
| Flow coefficient | Cv 0.14 / Kv 0,12 |
| Inlet pressure | 50 bar |
| Ports | G3/8 (inlet/outlet) |
| Oxygen use | Brass: OK / Stainless steel: only E / M versions with side inlet |
Dimensional drawings
Product Configurator
Downloadable catalogs, brochures
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