Low pressure & high flow UHP cylinder valve - D337
D337 low pressure manual cylinder valve for Ultra High Purity, corrosive, reactive and toxic gases is designed for keeping the highest level of purity of the gas, thanks to the tied diaphragm technology. The D337 valve is also available with the Rotarex puretec Open/close indicator for an improved safety.
Key advantages
- Reduced dead space and gas wetted volumes allow easy purging
- No particle generating threads in the gas wetted part
- Prevents seizure - Gas does not come into contact with the valve operating mechanism
- Back-up welded diaphragms provide a permanent and durable gas tight seal
Specifications
| Gas Type | Pure & Ultra-pure |
| Connections | According (inter-)national standards and customer specifications |
| Working pressure | 45 bar |
| Flow rate | CV=0.7 |
| Temperature range | -40 to +65 °c |
| Body materials | Stainless steel 1.4435 (AISI 316L), Hastelloy® C22, Nickel 200,Monel® 2.4360 (Monel 400) |
| Leak rate | 1.10-8 M bar l/s |
| Seat orifice size | 8 Mm |
| Marking | π0029 (according to TPED), 3 stars, valve number, manufacturing date |
Dimensional drawings
Downloadable catalogs, brochures
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