Combination steam and fuel oil supply and purge valve with recir

Details Combination steam and fuel oil supply and purge valve with recir Combination steam and fuel oil supply and purge valve with recir

1991-05-02

1992-02-25

Hepperle, Stephen M.

Fluid handling

Systems

Sequentially progressive opening or closing of plural valves

137597, 431121, F16K 1116

Patent

active

050904515

ABSTRACT:
An improved combination steam and fuel oil supply and purge valve has a steam valve and actuator member which provides for a closed position, a purge operation with communication established between a steam supply line and a discharge line leading to an oil burner, and a burner operation position wherein the actuator portion of the member engages and opens a double-acting oil supply and recirculation valve member and thus establishes communication between an oil supply line and an oil discharge line to the burner. In its closed position the oil supply and recirculation valve member provides for communication between the oil supply line and a recirculation line which redirects oil to a storage tank or the like for reheating and for maintenance of a desired viscosity during burner shutdown.

REFERENCES:
patent: 4146056 (1979-03-01), Buchanan
patent: 4454892 (1984-06-01), Chadshay
patent: 4565217 (1986-01-01), McIntyre
patent: 4579143 (1986-04-01), Rollins et al.

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