Hydraulic fill valve

Details Hydraulic fill valve Hydraulic fill valve

1979-10-09

1981-03-10

Goldberg, Gerald

Measuring and testing

With fluid pressure

Pipe

G01M 302

Patent

active

042546559

ABSTRACT:
An improved method and apparatus for injecting hydraulic test fluid into a length of pipe is disclosed. Test fluid under low hydraulic pressure axially displaces a cylindrical fill valve against a retaining force. The test fluid fills the pipe through discharge ports in the side of the fill valve. The retaining force retracts the fill valve and closes the discharge ports when the pipe is full. A conduit through the fill valve then supplies high pressure hydraulic fluid for testing the internal strength of the pipe.

REFERENCES:
patent: 1422522 (1922-07-01), Bareiss
patent: 4192177 (1980-03-01), Crickard et al.

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