Bare Shaft Hpld Compressor Model Designations - Emerson Vilter VSG128 Installation, Operation And Service Manual

Section 1 • General Information

Bare Shaft HPLD Compressor Model Designations

The compressor bare shaft model designation can be found on the nameplate.
Compressor Model
VSG= Vilter Single
Screw Compressor
(Gas Compression)
VSH = Vilter Single
Screw Heat Pump
VSS= Vilter Single
Screw Compressor
(Refrigeration)
Size
CFM = Nominal CFM displacement
of the compressor at 3600 rpm
128, 145, 160, 180, 204, 222, 243
HPLD Single Screw Compressor • Installation, Operation and Service Manual • Emerson • 35391HP
Compressor Type
STH = Steel Compressor
Material w/ Discharge
Connection Horizontal
VSG–160–STH–STD–FV–AFH–SS
Slide Design Type
FV = Fixed Volume
Drive Shaft Type
STD = Standard
Straight Drive Shaft
Special Designations
SS = Stainless Steel Internal
EO = External Oil Feed
VIB = Main Housing with
Seal Type
AF = Aflas O-rings
HV = High Pressure
Design w/ Viton O-rings
AHF = Ammonia
Service High Pressure
Aflas O-ring
Hardware
C = Ceramic Bearings
Vibration Mounting
N = 900# Flange
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