| |
Horizontal LPG Compressors—Material Specifications
|
Part | Models
| Standard
| Optional | |
| Material
| Material
| |
Crankcase | All |
Ductile iron ASTM A536,
grade
65-45-12 | |
| Adapters |
|
Cylinders | |
Cylinder heads | |
Valve caps | |
Crankcase bearing carrier | All |
Gray iron ASTM A48,
Class 30 | |
|
Flanges | All |
Steel slip-on welded | |
|
Valve guard | All |
Stainless steel | |
|
Valve plates and springs | All |
Stainless steel | |
|
Valve seat | 4" |
Steel 4140 | | | 3-1/4",
6", 8" |
Stainless steel | |
|
Valve gaskets | 3-1/4",
4" | Steel | Copper,
iron lead | | 6",
8" | Soft
aluminum | |
Pistons | 3-1/4",
4" |
Steel | Ductile
iron ASTM A536, grade 65-45-12 (single stage only) |
| 6", 8" |
Aluminum A356-T6 |
Packing: segmented
sealing rings | 4" |
PTFE, carbon filled | |
| 3-1/4",
6", 8" |
PTFE, glass & moly filled |
| |
Segmented wiper rings | 4" |
Brass | Copper,
iron-lead | | 3-1/4",
6", 8" |
PTFE, carbon filled | |
|
Piston rod | |
C-1050 steel nitrotec,
Rockwell 60C | |
|
Crosshead | |
Gray iron ASTM A48,
Class 30 | |
Connecting
rod & packing
cartridge | |
Ductile iron ASTM A536,
grade 65-45-12 | |
|
Piston rings | |
PTFE, glass & moly filled | |
|
Rider rings | |
PTFE, glass & moly filled | |
|
Connecting rod bearing | All |
Bimetal D-2 babbit | |
| Crankshaft | All |
Ductile iron ASTM A536,
grade 80-55-06 |
| |
Wrist pin | All |
C-1018 steel, Rockwell 62C |
| |
Wrist pin bushing | All |
Bronze SAE 660 | |
|
Main bearings | All |
Tapered roller | |
|
Inspection plate | All |
Carbon steel | |
| O-rings | All |
Buna-N | PTFE,
Viton® 1, Neoprene®1 |
|
Retainer rings | All |
Carbon steel | |
|
Lubricator tubing | All |
Steel | |
| Lubricator | All |
Force feed, with divider
block no flow shutdown |
| 1
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