Page 277 - Reciprocating Compressors Operation Maintenance

262 Reciprocating Compressors: Operation and Maintenance

Installation of Sleeves or Liners

If the practicality of overboring a cylinder is in question, or if it is
desired that the bore size remain the same as original, installing a special
liner may be considered. The amount of material that can be removed
from a cylinder for overboring remains the same, but a suitable liner may
be made for the cylinder. It must be remembered that installing a liner
will not strengthen the cylinder (see Figure 4-17).
A liner or sleeve can be manufactured from centrifugally cast, high-
strength iron with the outside diameter slightly larger than the cylinder
bore. The inside diameter should not be finished to size until it is
installed into the cylinder. After installation into the cylinder, it can be
bored to finished size and honed to achieve the proper finish.
The interference fit between the liner OD and the cylinder bore should
not be excessive, or distortion of the liner will take place and the stress
on the cylinder may exceed the material strength. Generally for liners
with inside diameters up to 16", an interference fit of line-to-line to a
maximum of .002" is used.

Direction of
Installation

FIGURE 4-17. Installing a cylinder liner.