Heavy Duty Balanced Opposed Compressors

FOR MODELS: JG AND JGA
SECTION 2 - INSTALLATION
General
The installation of the compressor with the associated driver and piping must be done with
care and precision. This section does not attempt to address all of the concerns that can
arise during installation. This section addresses some of the more critical installation considerations
and requirements.
Procedure For Setting and Aligning
The following points deserve special attention during the setting and alignment of the compressor:
1. The skid design should:
Transmit compressor and driver reaction forces to the foundation.
Ensure that there is a proper mismatch between the shaking forces and the natural
frequency of the skid.
Have sufficient stiffness and strength so that the compressor can be mounted
flat with no bending or twisting of the compressor frame, crosshead guides or
cylinder. This can be accomplished by careful shimming or grouting.
Have enough stiffness and mass to resist vibration induced by the maximum
unbalanced couples as specified in the Ariel Application Data Book.
2. The feet on the crosshead guides must be supported in a fashion that not only
provides vertical support but also prevents horizontal movement perpendicular
to the piston rod and capable of carrying the combined weight of the cylinders,
bottles and piping.
3. The compressor frame oil piping system and components are to be free of foreign
matter including, but not limited to dirt, sand, rust, mill scale, metal chips,
weld spatter, grease and paint. It is recommended that a commercial pipe cleaning
service be used to clean the oil piping system. If that is not practical, proper
cleaning procedures using cleaners, acids, and/or mechanical cleaning are to
be used to meet the cleanliness requirements. Cleaning by-products are to be
properly disposed; a disposal service is recommended. It is also recommended
that all oil-piping systems be flushed using an electric or pneumatic driven pump
and filtered clean production oil. All compressor frame cavities are thoroughly
cleaned prior to assembly at the Ariel factory. Then each unit is put through a
test run with a filtered closed lube loop.
4. Compressor cylinders that have water-cooled packing are to be connected to
water cooling unless prior approval is obtained from Ariel Field Service. Refer to
“Water Cooled Compressor Rod Packing” on page 3-11.
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