FORM 220.11-NM2 (602)
7
YORK INTERNATIONAL
SECTION 1
DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION
GENERAL DESCRIPTION
YORK’s Series M Turbomaster Compressors are de-
signed for compressing various refrigerants, oil field
hydrocarbon gases, CO
2
, air and chemical vapors.
They are manufactured in three nominal sizes mea-
sured at the inside diameter of the casing. The sizes
are 26, 38, and 55 inches. In addition, a 26 inch cas-
ing with a small diameter high speed rotor is identi-
fied as a 25 inch compressor.
cludes the pressure containing parts and stationary seals.
These compressors can incorporate 1 to 8 stages of com-
pression within a single casing. Series M Turbomaster
compressors may be directly driven by a turbine, mo-
tor, engine, or through a speed increaser/reducer. Ro-
tation must always be driven counter clockwise facing
the shaft end.
FUNDAMENTALS OF OPERATION AND MACHINE
COMPOSITION
This family of compressors has great flexibility in ap-
plication and the materials of construction will vary
based upon the design operating requirements for which
it was selected. Casing material can be cast iron, nodu-
lar iron or cast steel depending upon the design opera-
tion requirements. See Figure 2 for a typical compres-
sor cross-sectional view. Impeller materials can be alu-
minum or stainless steel, or a combination of both to
meet the requirements.
FIG. 1
– SERIES M TURBOMASTER COMPRESSOR
00618VIP
00619VIP
They consist of two major parts groups, the rotor and
the casing. The rotor assembly includes the main shaft,
impellers, and shaft driven oil pump. The casing in-
CASINGS SIZES I.D.
25"
26"
38"
55"
WHEEL
B
8.25 12.2
18.0
26.7
DIAMETERS
A
10.0
14.8
21.9
31.5
(INCHES)
TABLE 1
– CASING SIZES
Summary of Contents for Turbomaster M Series
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