| |
Industrial D-Style Compressor—Material Specifications
| Part |
Standard |
Optional |
|
Models |
Material |
Models |
Material |
| Head,
cylinder & cylinder cap |
All |
Ductile
iron
ASTM A536 | |
|
| Crosshead guide, crankcase,
flywheel bearing carrier | All |
Gray
iron
ASTM A48,
Class 30 | |
|
| Flange |
D591, D691 | Ductile
iron
ASTM A536 | D591, D691 |
Steel
welding |
|
D791,
D891 | ASTM A36
carbon
steel | |
|
| Valve seat
and bumper | D91, D191,
D291 | Stainless
steel | |
|
| D391, D491 |
Ductile
iron
ASTM A536 | |
|
| D591, D691 |
Stainless steel |
|
|
| D791 |
Stainless steel (1st.
stage)
Ductile iron
(2nd. stage) | |
|
| D891 |
Stainless steel |
|
|
| Valve plate |
D91, D191,
D291 | Stainless steel |
D91, D191,
D291 | Peek |
| D391,D491 |
Stainless steel |
|
|
| D591, D691,
D791, D891 |
Stainless steel | D591,
D691,
D791, D891 | Peek |
| D791,
D891 | Stainless
steel | |
|
| Valve spring |
D91, D191,
D291, D591, D691, D791, D891 |
Stainless steel |
|
|
| D391, D491 |
Inconel |
|
|
| Valve gaskets |
All |
Soft
aluminum | All |
Copper,
iron-lead |
| Piston |
D591 | Gray
iron ASTM
A48,
Class 30 |
|
|
D91, D191,
D291, D391, D491, D691, D791, D891 |
Ductile iron ASTM A536 |
|
|
| Piston rod |
All |
1043 Steel - Nitrotec |
All |
Chrome
oxide |
| Crosshead |
D91, D191,
D291, D391,D491 | Gray
iron
ASTM A48,
Class 30 |
|
|
| D591,
D691, D791, D891 |
Ductile iron ASTM A536 |
|
|
| Piston rings |
All |
PTFE,
glass and moly filled or Alloy 50 |
All |
Alloy
50 | | Piston
ring expanders | All |
Stainless steel |
|
|
| Head gasket |
All |
O-ring
(Buna-n) | All |
PTFE,
Viton®1, Neoprene®1 |
| Packing
cartridge, connecting rod and packing barrel |
All |
Ductile
iron
ASTM A536 | |
|
| V-ring
Packing | D91, D291,
D391, D491 | PTFE
glass and molly filled |
All |
Alloy 50 |
|
D591, D691, D791, D891 |
Alloy 50 |
|
|
| Segmented packing
rings | D791, D891 |
Carbon-filled PTFE |
|
|
| Crankshaft |
All |
Ductile
iron
ASTM A536 | |
|
| Connecting rod bearing
| All |
Steel backing B-100 SAE
12 babbit | |
|
| Wrist pin |
All |
Hardened steel |
|
|
| Wrist pin bushing |
All | Bronze
SAE J461 | |
|
| Main bearing |
All |
Tapered
roller | |
|
| Inspection plate |
All |
Aluminum |
|
|
| O-rings |
All |
Buna-N |
All | PTFE,
Viton®1, Neoprene®1 |
| Retainer rings |
All |
Steel |
|
|
| Miscellaneous gaskets |
All | Rubber
compositions | |
|
1 Viton® and Neoprene®
are registered trademarks of the DuPont Company. |
Products | LCG PT-Series Pumps 
