Heavy Duty Balanced Opposed Compressors - Ariel Corporation

Appendix B - Clearances For Models: JGH:E:K:T
TABLE B-3 Side Clearances for NEW Piston Rings, Packing Rings, and Wearbands, in. (mm)
Nominal
Width
3/16
(4.76)
1/4
(6.35)
5/16
(7.94)
3/8
(9.53)
1/2
(12.70)
5/8
(15.88)
3/4
(19.05)
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Actual Groove Width Teflon PEEK Bronze
0.187 - 0.189
(4.75 - 4.80)
0.250 - 0.252
(6.35 - 6.40)
0.312 - 0.314
(7.92 - 7.98)
0.375 - 0.377
(9.53 - 9.58)
0.500 - 0.502
(12.70 - 12.75)
0.625 - 0.627
(15.88 - 15.93)
0.750 - 0.752
(19.05 - 19.10)
0.375 - 0.377
(9.53 - 9.58)
0.572 - 0.574
(14.53 - 14.58)
0.875 - 0.877
(22.23 - 22.28)
2.000 - 2.002
(50.80 - 50.85)
3.000 - 3.003
(76.20 - 76.28)
Piston Rings
0.0035 - 0.007
(0.09 - 0.19)
0.005 - 0.011
(0.13 - 0.28)
0.006 - 0.012
(0.15 - 0.30)
0.007 - 0.013
(0.18 - 0.33)
0.009 - 0.015
(0.23 - 0.38)
0.011 - 0.016
(0.28 - 0.41)
0.013 - 0.020
(0.33 - 0.51)
Packing Rings
0.011 - 0.015
(0.28 - 0.38)
0.017 - 0.022
(0.43 - 0.56)
Wearbands
0.010 - 0.024 (0.25 -
0.51)
0.024 - 0.034 (0.61 -
0.86)
0.036 - 0.048
(0.91 - 1.22)
PAGE B-2 3/11
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0.005 - 0.008
(0.13 - 0.20)
0.005 - 0.008
(0.13 - 0.20)
0.005 - 0.008
(0.13 - 0.20)
0.005 - 0.008
(0.13 - 0.20)
0.006 - 0.009
(0.15 - 0.23)
0.008 - 0.011
(0.20 - 0.28)
0.004 - 0.008
(0.10 - 0.20)
0.004 - 0.008
(0.10 - 0.20)
0.004 - 0.008
(0.10 - 0.20)
0.004 - 0.008
(0.10 - 0.20)
0.004 - 0.008
(0.10 - 0.20)
0.005 - 0.009
(0.13 - 0.23)
0.006 - 0.010
(0.15 - 0.25)
0.011 - 0.015
(0.28 - 0.38) 0.006 - 0.008
0.017 - 0.022
(0.43 - 0.56)
0.006 - 0.010
(0.15 - 0.25
0.014 - 0.018
(0.36 - 0.46)
0.021 - 0.025
(0.53 - 0.64)
(0.15 - 0.20)
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