This miniature valve can be manually or remotely operated. Operating temperatures range from-20° to +250°F (-29° to +120°C), while operating pressures range from high vacuum to 300 psig. Available in brass and MONEL®, this valve can be used as a stop valve in a calibrated leak tester, and in labs where leak-tight service is necessary.
Design Features:
- Protective handle limits escape of process fl uid if bellows ruptures
- Bellows assembly is replaced by removing cap handle and retaining nut
- PCTFE seat is fully encapsulated to prevent cold flow
- Bellows is sealed to body with a PCTFE gasket
- Bellows and stem are one-piece assembly
- Available with female NPT or silver-soldered copper tube extensions
- One of the smallest valve types and capacities available
- Air-to-open or air-to-close operators for remote actuation are available
- Valve may be base-mounted
- Special High Tolerance NPT Thread
Typical Applications:
- Stop valve in calibrated leak tester
- High vacuum work
- Laboratory environments demanding leak-tight service
For a general overview of the Hoke product portfolio, please click here to download the Hoke Overview Brochure.
For a condensed version of the full product catalogue, please click here to download the Hoke Condensed Catalogue.
For the full range of packless bellows and diaphragm valves, please click here to download the Hoke Packless Bellows and Diaphragm Valves Catalogue.
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Why choose Boiswood?
For your HOKE 4500 MINI BELLOWS VALVE
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