High pressure UHP cylinder valve with Oleo-pneumatic actuator - D389S
D389S UHP cylinder is designed for keeping the highest level of purity of the gas. The seat closure force is increased thanks to its oleo-pneumatic actuator. The tight diaphragm technology allows no particle are generation in the gas wetted parts.
Key advantages
- Tied diaphragm design with minimal gas wetted volume
- Combined soft and metal seat design with low permeation rate
- Patented operation mechanism
- Threaded weep hole for pipe away connection
- Strong closing force with the use of a hydraulic amplifier
- Possibility to connect to a leak detector
Specifications
| Gas Type | Pure & Ultra-pure |
| Connections | According (inter-)national standards, customer specifications |
| Working pressure | 200 bar |
| Flow rate | CV=055 |
| Temperature range | -40 to +65 °C |
| Body materials | Stainless steel 1.4435 (AISI 316L)/ Hastelloy® 2.4602 (UNS N 06022) |
| Seat orifice size | 6 Mm |
| Leak rate | 1.10-8 M bar l/s |
| Marking | π0029 (according to TPED), valve part number, Manufacturing date, Connections, seat material, 3 stars |
| Options | Accessories like mechanical and electronic position indicators are available on request |
Dimensional drawings
Downloadable catalogs, brochures
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