D304 High pressure 4mm orifice Valve
D304 valve for UHP, corrosive, reactive and toxic gases from Rotarex Puretec is designed for keeping the highest level of purity of the gas. No particles are generated in the gas wetted part thanks to the tied diaphragm technology. It is also available with the new Open/close indicator from Rotarex Puretec
Key features
- Tied diaphragm, 4 mm orifice, 200 bar
- Soft and metal seat with low permeation
- No particle generating threads in the gas path
- Bodies in 316L, Hastelloy, Nickel or Monel
- Optional pressure relief device
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Request a quoteDownload data sheetA manual tied diaphragm cylinder valve for ultra high purity, corrosive, reactive and toxic gases, rated 200 bar with a 4 mm orifice and Cv 0.35. The tied diaphragm keeps the gas wetted volume small, the combined soft and metal seat gives a low permeation rate, and there are no particle generating threads in the wetted path. The spindles are mechanically linked for positive operation, a threaded weep hole allows leak testing and pipe away, and a pressure relief device and an open and close indicator are options. Body in AISI 316L stainless steel, Hastelloy C22, Nickel 200 or Monel, marked to TPED.
Specification
| Orifice | 4 mm |
|---|---|
| Maximum Inlet Pressure | 200 bar |
| In/Out Connections | standard or specific cylinder connections, DISS for example |
| Cv | 0.35 |
| Temperature | -40 to +65 C |
| Body Material | AISI 316L stainless steel, Hastelloy C22, Nickel 200 or Monel by version |
| Technology | manual tied diaphragm cylinder valve |
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Common questions
- Which gases is the D304 cylinder valve made for?
- Ultra high purity, corrosive, reactive and toxic gases. The body material is chosen for the gas: AISI 316L stainless steel, Hastelloy C22, Nickel 200 or Monel by version. The tied diaphragm keeps the wetted volume small and leaves no particle generating threads in the gas path, and the combined soft and metal seat keeps permeation low. It is rated 200 bar with a 4 mm orifice and Cv 0.35.
- Can the D304 be supplied with a DISS outlet?
- Yes. The cylinder connection is cut to the standard the gas and the filling plant call for, DISS to CGA V-1 included, and the DISS number is keyed to the gas so only the matching connector fits. Tell us the gas and the outlet number. The mating parts are on the site too: the DISS 40 Series connectors and the 30 Series gaskets.
- What is the weep hole on the D304 for?
- Leak testing and pipe away. The threaded weep hole lets the valve be leak tested and lets any leakage be piped away to a safe point. The spindles are mechanically linked for positive opening and closing, and a pressure relief device and an open and close indicator are available as options. Working temperature is minus 40 to plus 65 C and the valve is marked to TPED.
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