50 | Chapter 4: Installation
Compressor Valves
Compressor valves control the inlet low pressure and higher outlet gas pressure
gas from the compressor cylinder. During normal operation, these valves open and
close by differential pressure across the valve. Valve springs keep the valve plate
closed against the respective inlet and discharge valve seat preventing reverse
gas flow through the valves.
In absence of the operating conditions; standard inlet and discharge valves are
installed into the compressor cylinder during factory assembly. Valves having
different seat and guard materials, valve plate materials, plate lift, and spring
forces are frequently tailored to fit the actual operating conditions. Tailored valves
provide the end user with valve materials for optimum compressor performance
and service life.
A computerized program selects the optimum tailored valve part numbers. The
following data is required for entry into the valve tailoring program:
•
Current process gas analysis.
•
HSR Compressor performance printout of the actual compressor operating
conditions.
Tailoring the valves involves using springs of different strengths, valve plate
materials of nylon, MTX, HTCX, or steel, and may require lift dimension changes.
Operating speed changes usually have the greatest influence on valve tailing
requirements.
Summary of Contents for H301 Series
Page 1: ...High speed reciprocating compressors H301 and 302 series operating manual GE Oil Gas ...
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Page 17: ...H301 302 HSR Compressors Rev 2 2 7 ...
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Page 114: ...104 Chapter 8 Maintenance Figure 21 Effective rod extension amount pocket is open ...
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