Page 430 - Reciprocating Compressors Operation Maintenance

Index 415

truncated, 30, 81 oversized, 186 breakdown, 175
two-piece, 277 packing (see Packing) buildup, 101
worn, 282 reconditioning, 292-294 depressurization, 371
Piston rings, 215 rolled thread, 294,295 differential, 1,12
bull, 216 runout, 243-244,245 discharge, 12
carbon, 71 set screw, 66 drop, 17
carrier, 57 stretch, 84 energy, 7
clearance, 228, 272, 273 surface hardness, 77 excess, 39
distance, 68, 74 tandem, 63 explosion, 187
gap, 228, 261 tapered, 58, 185-186 gas, on piston rings, 272
force fit, 79 truncated, 63 gauge, 9
guide, 216 types of, 62-64 injection, 242
installation, 274-275 undersized, 186 inlet, 12
leakage, 21 verifying trueness, 291 ' insufficient, 314
oil scraper, 65 wiper packing, 192,193 interstage, 24, 39, 325
oversize, 261 Plasma spray, 64, 292 lubrication system, 45,
pre-stretehed, 79 Plastic 120-124
renewing, 280 pipe, 385, 387 packing, 72, 190-192
slap, 72 composite, 146, 148 range, 28
Teflon, 80,82,178, 179, Plastigage, 229 ratio, 325
183,282 Plate, valve, 82, 149, 164 safety device, 110
width, 78 guard or stop, 149 sensing element, 196
Piston rods, 61-70 ported, 143 static, 7
bent, 294 Plating, 292,293,294,299,300 suction, 12
castellated, 66 Plug unloader, 51, 141 total, 12
coatings, 294 Plunger, 54 true, 11
column, 82 Pocket, oil, 109 wave, 100, 101
connection, 58 Polarization, 377 Pressure-tight crankcase, 219
cooled, 64 Polyalkylene glycol, 127 Pressure-volume
cut threads, 294,295 Polyalpha-olefin, 111,127 diagram, 31,103, 134, 331
deflection, 84 Polyether-ether-ketone, 148 patterns, 330-332
die cut threads, 294 Polymers, 72,103,224 Pressured header-type
failure, premature, 295 Polytropic compression, 10 system, 114
finish, 77 Poppet valve, 144,145 Pressurized inlet, 120
flame-hardened, 290 Porosity, 293 Pre-stressing, 68
floating coupling, 68-70 Porous chrome, 293 Probes, 364,368
holding fixture, 285 Portable compressor, 34 Problems (see Troubleshooting)
inspection and Ported plate valve, 143 Process condition, 39
reconditioning, Positive, 8, 114 Proximity probe, 244-245,
290-294 Power 364,368
installing pistons on, capacity vs., 26 PTFE (see Teflon)
284-288 limit, 194 Pulsation, 99, 102, 152, 153
interference fit, 58 saving, 22, 23 control, 102
jack, jam screw, 67 Prelube, 185 dampener, 28
load, 82-84, 87 Pre-stress, 296 effect of, 102
maintenance of packing, Pressure, 11,28 form, 99-100
189-190 absolute, 9, 11, 12 Pumps
manufacture of, 294-296 atmospheric, 12 divider block system, 121
material, 64-65,294 back, 187 Gerhardl, 121
multi-bolt, 61, 68 balance ring set, 180 injector, 121