Hi Al
have you talked to one of the pneumatics suppliers such as Martonair,
Festo, SMC etc? Pilot operated 3 way valves are fairly common.
Depending on the gas you are handling, you will need to watch out for
corrosion, lubrication and gas stream isolation. However you shouldn't
have too many problems. There are also suppliers of valving for medical
gases; names escape me but they should be easy to find with a web
search. Watch out for plastic components in the valves which can
sometimes be troublesome.
Cheers
Steve
-----Original Message-----
From: Paul Bowers [mailto:pbowers@pipingdesign.com]
Sent: Saturday, December 11, 2004 8:41 AM
To: <a href="/group/PipingDesign/post?postID=a_AmwYXBod0y03uHxZwhpPvVw3WyIV2xf6YCIA2whVZP0fSLa4IJwpRxKJjUrJ7bUfmsVHwOsPFEwoDhiBAMQqfzc3GG">PipingDesign@yahoogroups.com</a>
Subject: [PipingDesign] [Fwd: Fw: Small pneumatic valve]
Sent: Friday, December 10, 2004 10:45 AM Subject: Small pneumatic valve
12/10/04
We are looking for a small three way pneumatic valve that can be remotely activated by air pressure. The in and out gas flow is at 5 psi, about 300 cc/min. There are two gas sources A and B, each at about
5 psi, that must be switched. We need a through flow from source A when
the control pressure is low and from source B when 5 psi air is applied to the control port. Tubing size is 1/8-1/4" ID, flexible plastic. Quantity is 10-1000 units.
Can you help?
Regards,
Al Ketler
Albert E. Ketler, PE
President
Rel-Tek Corporation
610 Beatty Road
Monroeville, PA 15146 USA
Phone 800-783-9228
412-373-6700
Fax 412-373-6703
Email <a href="/group/PipingDesign/post?postID=QCyXohEfLf2HXsry2tmKN51aamx0VU7brfwJ6isrgV3J7PvzcVgTbTpe5_0YJndJUzQwhWFjRfZGBw">sales@rel-tek.com</a>
Web site: www.rel-tek.com
<a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a> =========================================Main site: <a href="http://www.pipingdesign.com">http://www.pipingdesign.com</a>
Yahoo! Groups Links Received on Fri Dec 10 14:49:00 2004
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