Corken 91 - Page 31

Appendix A—Model Number Identification Code and Available Options
Reciprocating Vertical Compressors (D-Style) Double-acting, Single-stage Models
D-Style
(Double
Packed)
Base Model # D891 FD891
Inlet 2" weld 2" Class 300 RF
Outlet 2" weld 2" Class 300 RF
Weight lbs. (kg) 900 (408.2) 915 (415.0)
Specification Fields
Packing
Arrangement
Packing arranged for padding of
distance piece
Standard J
Crankcase
Style
Pressure lubricated crankcase Standard M
Standard crankcase with heater Optional MH
Standard crankcase drilled for heater Optional MR
Valves
Standard suction and discharge valves Standard 4P
Suction valve unloaders Optional 9P
Piston Ring
and Packing
Material
PTFE piston ring with Alloy 50 packing
material
Standard F
Gasket
Material
Aluminum gasket material Standard B
O-ring
Material
Buna-N Standard A
Neoprene
®1
Optional B
Intercooler
Connections
No intercooler—not applicable on single
stage compressors
Standard N
Flywheel
No flywheel supplied Optional N
Standard flywheel Standard S
Protective
Coating
No coating Standard N
Piston Rod
Coating
Nitrotec
®2
piston rod coating Standard N
1
Registered trademark of the DuPont company.
2
Registered trademark of TTI Group Ltd.
Model Number
Base X X X X X X X X X X
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