
Rotarex · UHP — ultra high purity
Oleo-pneumatic UHP cylinder valve for highly oxidizing gases – D356
Manufacturer product images · for reference

The D356 UHP cylinder valve with oleo-pneumatic actuator is designed for Ultra High Purity highly oxidizing and reactive gases, ensuring the highest level of gas purity thanks to its tied diaphragm technology . Its oleo-pneumatic actuator increases the seat closure force for maximum safety.
- Tied diaphragm design with minimal gas wetted volume
- Metal to metal sealing
- Patented operation mechanism
- Threaded weep hole for pipe away connection
- Strong closing force with the use of a hydraulic amplifier
Technical specifications
| Brand | Rotarex |
|---|---|
| Category | UHP — ultra high purity |
| Marking | π according to TPED), valve number, Manufacturing date, Connections, 3 stars |
| Gas Type | UHP highly oxidizing/reactive gases |
| Flow rate | CV=0.28 |
| Leak rate | 1.10 -8 M bar l/s |
| Connections | According (inter-)national standards, customers specifications |
| Body materials | Stainless steel 1.4435 (AISI 316L) / Hastelloy® 2.4602 (UNS N06022) |
| Working pressure | 150 bar |
| Seat orifice size | 3.5 Mm |
| Temperature range | -40 to +65 dc |
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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