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102 | Chapter 8: Maintenance
cylinder bore.
In multi-stage compressors, adjustments to the VVCP change the following:
1.
Required horsepower.
2.
Throughput volume capacity.
3.
Volumetric efficiency.
4.
Rod Loading.
5.
Compression ratios.
6.
Discharge Temperatures.
Please contact GE if you have questions concerning the installation or use of a
VVCP as a capacity control device.
adjust the Variable Volume Clearance Pocket (VVCP) assembly
Do not adjust VVCP while the compressor is in operation.
Failure to properly adjust and maintain VVCP can damage the
See CN 06-004. This VVCP adjustments apply to all compressor cylinders using HE
VVCP's.
Typical variable volume clearance pocket installed
Fi gu Re 20
Authorized HSR packagers are provided with performance prediction software
which allows them to check the entire performance operational envelope. Contact
GE Oil and Gas for your local authorized packager location can contact.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
compressor.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
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Troubleshooting
