Patent ID: 11873921
Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
Field: Civil engineering (Other fields)
Classification: CPC F  B  E  G  Y | IPC F  G

Claim 0:
1. An apparatus for metering a fluid, comprising:
a metering valve for metering a fluid;
a servo-valve comprising an actuator for operating said servo-valve;
a tube having a first end connected to said servo-valve and an opposite second end for connection to said metering valve and to allow said servo-valve to control said metering valve, wherein said tube has a predetermined length to thermally isolate said actuator and said servo-valve from said metering valve to prevent an increase in a temperature of said actuator caused by heat from said metering valve above an operating temperature of said actuator; and
a discharge valve for discharging fluid from a discharge line that carries the fluid from the metering valve to a point of use when said metering valve is closed, wherein said discharge valve is actuated by said metering valve.