Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1988-06-30
1990-05-08
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137501, G05D 701
Patent
active
049229567
ABSTRACT:
Improved flow control valves are disclosed which are exceedingly accurate in maintaining a constant predetermined flow rate regardless of inlet and outlet pressures. The valves are preferably designed to enable them to be fabricated almost entirely from suitable polymeric composition materials. One embodiment disclosed is extremely well suited for ultra-pure applications which require extreme care to avoid any possible contamination of the liquid flowing therethrough. Another embodiment is disclosed which is designed to achieve substantially zero leakage flow thereby rendering it particularly well suited for use in applications requiring exceedingly precise flow control and in particular relatively low flow rate applicatins wherein leakage flow is of greater significance.
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Brochure: Kates Company, 2101 Waukegan Rd., Deerfield, Ill., 60015, Bulletin 186.
Rozniecki Edward J.
Taube, Sr. Frank A.
Hepperle Stephen M.
Systems Specialties
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