High pressure regulating valve

Details High pressure regulating valve High pressure regulating valve

1994-01-21

1995-08-08

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

1375147, 137528, 251122, F16K 1702

Patent

active

054390273

ABSTRACT:
A high pressure poppet-type regulating valve for controlling fluids that have been pressurized up to approximately 20,000 psi (1,400 kg/cm.sup.2). In the preferred embodiment the disclosed gas-dampened valve includes a stainless steel tapered poppet which is slidably positioned within a bore of a stainless steel valve body having an integral tapered valve seat. A portion of the poppet has at least one tapered section having a preselected taper angle. The valve seat has a preselected taper as well. Preferably the tapered section of has a taper angle that is up to approximately 10% larger the taper angle of the valve seat to reduce erosion of the poppet and seat thereby allowing the poppet to be made of stainless steel in lieu of a more wear resistant material. The valve body of the preferred embodiment further includes opposed discharge ports for minimizing pressure imbalances thereby reducing cavitation-induced damage to the valve. Additionally, an optional protective sleeve may be installed about a straight cylindrical discharge portion of the poppet to further minimize cavitation induced damage to the valve.

REFERENCES:
patent: 5065789 (1991-11-01), Eslinger
patent: 5097864 (1992-03-01), Myers
patent: 5127807 (1992-07-01), Eslinger

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