Product category:
Process and OEM Valves
News Release from: Circor Instrumentation | Subject: GO DV-1 Series diaphragm valves
Edited by the Engineeringtalk Editorial
Team on 27 October 2000
Diaphragm valves offer over 5m cycles at
250psig
Totally free of springs, bellows, packing, O-rings and lubricants in the process wetted area, the new GO DV-1 Series diaphragm valves offer an exceptionally long cycle life
Totally free of springs, bellows, packing, O-rings and lubricants in the process wetted area, the new GO DV-1 Series diaphragm valves offer an exceptionally long cycle life, providing in excess of 5 million cycles at 250 psig A 'remarkably' low leak rate of better than 1 x 10-9 scc/sec (inboard) ensures containment of the process media, while metal-to-metal seals to atmosphere guarantee that there is no adsorption of undesirable elements into the flow stream
This article was originally published on Engineeringtalk on 1 Mar 2001 at 8.00am (UK)
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The Hoke 7188 ball valve, added to the Flomite 71 Series of two-way integral panel mount valves, features floating ball design, encapsulated seats and check seals for extended leak-tight cycle life
Long service life is further ensured by the use of Elgiloy diaphragms providing the highest level of corrosion resistance.
Another design feature is a very small cavity volume of less than 0.01cc to help keep dead volume to a minimum.
The valves are available in several standard configurations, either 1/4 turn or multi-turn manual, or with a range of air actuators to give a full working pressure range from vacuum to 3,600 psig, with a burst pressure of 14,400 psig.
Various seat materials are offered for system chemical compatibility including PCTFE, Polyamide, Tefzel and PEEK, while the choice of valve body materials includes Brass, 316L Stainless Steel and Monel.
End connections are available in sizes 1/8in, 1/4in, 6mm and 8mm and in various combinations of Gyrolok, Tube Stub, NPT and BSP/ISO 7/1.
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