Appendix A—Model Number Identification Code and Available Options
Reciprocating Vertical Compressors (D-Style) Double-acting, Single-stage Models
Plain Style
(Single
Packed)
Base Model #
Air Cooled—Two Cylinders
HG601AA
HG601BB
HG601CC
HG601DD
HG601EE
HG601FF
Cylinder size
8" x 8"
6" x 6"
5" x 5"
4" x 4"
3¼" x 3¼" 2¾" x 2¾"
Weight lbs. (kg.)
1,070 (485) 910 (413) 890 (404) 870 (395) 845 (383) 845 (383)
T-Style
(Triple
Packed)
Base Model #
Air Cooled—Two Cylinders
THG601AA THG601BB THG601CC THG601DD THG601EE THG601FF
Cylinder Size
8" x 8"
6" x 6"
5" x 5"
4" x 4"
3¼" x 3¼" 2¾" x 2¾"
Weight lbs. (kg.)
1,170 (521) 1,010 (458) 990 (449) 970 (440) 945 (429) 945 (429)
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
Standard
NA
NA
Standard
Standard
Standard
4
Standard suction and discharge valves with
PEEK valve plates
NA
Standard
Standard
NA
NA
NA
4P
Standard and blank valves
Optional
NA
NA
Optional
Optional
Optional
4B
Standard and blank valves with PEEK plates
NA
Optional
Optional
NA
NA
NA
4PB
Low inlet pressure valves
No charge
NA
NA
NA
NA
NA
4L
1
Low inlet pressure valves with PEEK plates
NA
No charge
NA
NA
NA
NA
4PL
1
Low inlet pressure valves with blank valves
Optional
NA
NA
NA
NA
NA
4BL
1
Low inlet pressure valves and blank valves
with PEEK plates
NA
Optional
NA
NA
NA
NA
4PBL
1
Unloaders
Optional
NA
NA
Optional
Optional
NA
9
Unloaders with PEEK plates
NA
Optional
Optional
NA
NA
NA
9P
Unloaders with blank valves
Optional
NA
NA
Optional
Optional
NA
9B
Unloaders with blank valves and PEEK plates
NA
Optional
Optional
NA
NA
NA
9PB
Unloaders with low inlet pressure valves
Optional
NA
NA
NA
NA
NA
9L
1
Unloaders with low inlet pressure valves
and PEEK plates
NA
Optional
NA
NA
NA
NA
9PL
1
Unloaders with low inlet pressure valves
and blank valves
Optional
NA
NA
NA
NA
NA
9BL
1
Unloaders with low inlet pressure valves
and blank valves with PEEK plates
NA
Optional
NA
NA
NA
NA
9PBL
1
Piston Ring
and Packing
Material
PTFE piston and Alloy 50 packing material
Standard
F
Gasket
Material
Steel
Standard
D
O-ring
Material
Buna-N
Standard
A
Neoprene
®2
No charge option
B
Viton
®2
Optional
D
PTFE
Optional
E
Intercooler
Without intercooler
Standard
N
Flywheel
No flywheel supplied
Optional
N
Standard flywheel
Standard
S
Protective
Coating
Coated cylinder only
Optional
Optional
Consult
Factory
Optional
Optional
Optional
C
No coating
Standard
N
Coating on all necessary wetted parts
Optional
Optional
Consult
Factory
Optional
Optional
Optional
W
Piston Rod
Coating
Nitrotec
®3
Standard
N
Adjustable
Head
None
Standard
Standard
Standard
Standard
Standard
NA
N
Adjustable heads on both cylinders
Optional
Optional
Optional
Optional
Optional
Standard
3
1
For inlet pressures 0 to 15 PSI.
Model Number
Base X X X X X X X X X X X
2
Registered trademark of the DuPont company.
3
Registered trademark of TTI Group Ltd.
35