Piston Ring And Packing Ring Clearances; Fastener Torque Values; Table 5 Piston Ring And Packing Ring Clearances; Ta Ble 6 Pressure Packing Ring Clearances - GE H301 Series Operating Manual

Piston Ring and Packing Ring Clearances

H 301/302 piston ring side clearance
Piston ring width, Inches
0.114 0.187
0.116 0.189
Material
PEEK Teflon
Side clearance, inches
0.005 0.006
0.009 0.011
Piston side ring clearance (average) (per inch of cylinder diameter)
1-pc 1-pc
0.007 0.013
Piston ring and packing ring clearances
Table 5
Pressure packing ring side clearance
Cup depth
0.375 (9.525)
0.377 (9.576)
0.375 (9.525)
0.377 (9.576)
0.375 (9.525)
0.377 (9.576)
0.562 (14.274)
0.564 (14.325)
Tabl e 6 Pressure packing ring clearances

Fastener Torque Values

Refer to the engineering torque specification GES089, found on the HSR
compressor website for all torque values.
All torque values are for hardware lubricated with Molykote ®
0.213 0.215 0.248
0.215 0.217 0.25
Teflon PEEK Teflon Non-lube Non-lube
0.004 0.001 0.007
0.007 0.004 0.012
1-pc 1-pc 1-pc
0.015 0.011 0.013
Ring type Ring width
Pressure breaker 0.369 (9.372)
BCD set 0.366 (9.296)
BD Packing 0.362 (9.194)
Oil wiper set 0.555 (14.097)
P-37, SAE 30 or 40 weight crankcase oil.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
0.248 0.25 0.257
0.253 0.252 0.26
Teflon
0.004 0.005 0
0.012 0.009 0.003
1-pc 2-pc 2-pc
0.038 0.017 0.016
Packing ring
side clearance
0.007 (0.177)
0.01 (0.254)
0.014 (0.355)
0.008 (0.203)
H301/302 HSR Compressors | Rev. 2.2 | 27