Machinery Lubrication

Machinery Lubrication Jan Feb 2016

Machinery Lubrication magazine published by Noria Corporation

Issue link: http://www.e-digitaleditions.com/i/629709

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Pipe unions should never be used to connect pipes in a high-pressure line. normally at 20 feet per second. The fluid speed may be higher or lower depending on the pipe size and system pressure. When the solenoid on a closed center valve is de-energized, the oil flow from the pump is rapidly dead-headed at the valve. Since oil is relatively non-compressible, a pres- sure spike will occur. This spike can be two to three times the maximum operating pressure. HOSE LEAKS A hose should be installed immediately downstream of the pump and just prior to

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