Appendix A—Model Number Identification Code and Available Options
Reciprocating Horizontal Models (Plain & T-Style) Two-stage (Two Cylinder)
Plain Style
(Single
Packed)
Base Model #
Air Cooled—Two Cylinders
HG602AB
HG602AC
HG602AD
HG602BC
HG602BD
Cylinder size
8" x 6"
8" x 5"
8" x 4"
6" x 5"
6" x 4"
Weight lbs. (kg.)
990 (449) 980 (445) 970 (440) 930 (422) 895 (406)
T-Style
(Triple
Packed)
Base Model #
Air Cooled—Two Cylinders
THG602AB
THG602AC THG602AD THG602BC THG602BD
Cylinder Size
8" x 6"
8" x 5"
8" x 4"
6" x 5"
6" x 4"
Weight lbs. (kg.)
1,090 (494) 1,080 (490) 1,070 (485) 1,030 (467) 995 (451)
Specification Fields
Packing
Arrangement
Plain style only
Standard packing
Standard
O
Purge packing
Optional
P
T-Style only
Pad packing
Standard
G
Crankcase
Style
Standard crankcase option with lubricator
Optional
L
Standard crankcase option with lubricator and
heater
Optional
LH
Pressure lubricated with external oil cooler
Standard
M
Standard crankcase option with heater
Optional
MH
Valves
Standard suction and discharge valves
NA
NA
Standard
NA
NA
4
Standard suction and discharge valves with
PEEK plates
Standard
Standard
NA
Standard
Standard
4P
Standard and blank valves in both stages
NA
NA
Optional
NA
NA
4B
Standard and blank valves in both stages with
PEEK plates
Optional
Optional
NA
Optional
Optional
4PB
Low inlet pressure valves
NA
NA
No charge
NA
NA
4L
1
Low inlet pressure valves with PEEK plates
No charge
No charge
NA
No charge
No charge
4PL
1
Low inlet pressure valves with blank valves in
both stages
NA
NA
Optional
NA
NA
4BL
1
Low inlet pressure valves with blank valves in
both stages with PEEK plates
Optional
Optional
NA
Optional
Optional
4PBL
1
Standard valves with blank valves in 1st stage
NA
NA
Optional
NA
NA
4F
Standard and blank valves in 1st stage with PEEK plates
Optional
Optional
NA
Optional
Optional
4PF
Low inlet pressure valves with blank valves in 1st stage
NA
NA
Optional
NA
NA
4FL
1
Low inlet pressure valves with blank valves in 1st
stage with PEEK plates
Optional
Optional
NA
Optional
Optional
4PFL
1
Standard valves with blank valves in 2nd stage
NA
NA
Optional
NA
NA
4S
Standard and blank valves in 2nd stage with PEEK plates
Optional
Optional
NA
Optional
Optional
4PS
Low inlet pressure valves with blank valves in
2nd stage
NA
NA
Optional
NA
NA
4SL
1
Low inlet pressure valves with blank valves in 2nd
stage with PEEK plates
Optional
Optional
NA
Optional
Optional
4PSL
1
Unloaders
NA
NA
Optional
NA
NA
9
Unloaders with PEEK plates
Optional
Optional
NA
Optional
Optional
9P
Unloaders with blank valves in both stages
NA
NA
Optional
NA
NA
9B
Unloaders with blank valves in both stages with
PEEK plates
Optional
Optional
NA
Optional
Optional
9PB
Unloaders with low inlet pressure valves
NA
NA
Optional
NA
NA
9L
1
Unloaders with low inlet pressure valves with
PEEK plates
Optional
Optional
NA
Optional
Optional
9PL
1
Unloaders with low inlet pressure valves and
blank valves in both stages
NA
NA
Optional
NA
NA
9BL
1
Unloaders with low inlet pressure valves and blank
valves in both stages with PEEK plates
Optional
Optional
NA
Optional
Optional
9PBL
1
Unloaders with blank valves in 1st stage
NA
NA
Optional
NA
NA
9F
Unloaders with blank valves in 1st stage with
PEEK plates
Optional
Optional
NA
Optional
Optional
9PF
Unloaders with low inlet pressure valves and
blank valves in 1st stage
NA
NA
Optional
NA
NA
9FL
1
Unloaders with low inlet pressure valves and blank
valves in 1st stage with PEEK plates
Optional
Optional
NA
Optional
Optional
9PFL
1
Unloaders with blank valves in 2nd stage
NA
NA
Optional
NA
NA
9S
Unloaders with blank valves in 2nd stage with
PEEK plates
Optional
Optional
NA
Optional
Optional
9PS
Unloaders with low inlet pressure valves and
blank valves in 2nd stage
NA
NA
Optional
NA
NA
9SL
1
Unloaders with low inlet pressure valves and blank
valves in 2nd stage with PEEK plates
Optional
Optional
NA
Optional
Optional
9PSL
1
For specifications on piston ring, packing, gasket, and O-ring materials, intercooler, flywheel, protective coating, piston rod coating,
and adjustable head options, see next page.
Model Number
Base X X X X X X X X X X X
36