Page 433 - Reciprocating Compressors Operation Maintenance

418 Reciprocating Compressors: Operation and Maintenance

valve, 264 disassembly, 159-161, safety, 376-378,383
valve problems, 157 163-165 schematic, 135
v-belt drives, 327 disc, 144 sealing element, 132,
True pressure, 11 discharge, 31, 32,385 146,149
Trunk piston design, 30 double block and bleed seat, 132, 137, 148, 157,
Tungsten carbide overlay, 292 combination, 373 165,264
Two-impeller straight-lobe double-deck, 144 semi-polarized, 377
compressor, 8 energy expended, 135 single-bolt restraint, 162
Two-piece piston, 277 failure, 150-154, 382 slip, 21
Two-stage compressor, 34 faulty, 305 solenoid-operated, 216
feather, 139 spare, 152
Ultraprobe, 330 fouling of, 114 spring, 149,165
Ultrasonic/ultrasound, 255, function of, 133 sticking effect, 136
329-334 guard port, 137 suction, 32,196, 198
detection device, 330 high-security restraint, 164 surfaces, liquid films on, 379
patterns, 332 high-speed, 144 temperature monitoring,
pickup, 334 holding fixture, 163-164 323,362-363
pressure-volume patterns, inlet, 31 terminal check, 124
330-332 installation, 376-378 testing, 166-167
trace, 333 jam screw, 159,161, theory and design, 132
vs. crankangie patterns, 265,267 troubleshooting, 131-167,
332-334 land, 137 158-159,264,324
Undercutting, 264 leaking, 324, 333 type, 138, 145
Unloader, 82 lift, 137, 149-150 unloading assembly, 198
assembly, 197 location chart, 158-159 velocity, 17, 136
bypassing, 326 loose or broken, 306 yoke, 159, 161
finger, 196, 197 loss, 17 Vapor, 3
mechanism, 196 maintenance and Velocity, 7
non-lubricated, 82 operational problems, acoustic, 100
plug-type, 51, 141 131-167 low-impact, 145
valve, 196, 198 malfunctions, 334 valve, 17, 136
material, 146-148 Vendor selection, 353-355
V-belts, 326,327 monitoring, 323 Vent, 111
V-blocks, 285,286, 290,295 multi-bolt restraint, 162 arrangement, 173
V-oriented compressor, 13, non-interchangeable, hole, 276
14,42 376-377,378 provision, 173
Vacuum, 13 non-lubricated, 82 Vented packing case, 173
packing, 173 operational problems and Venting, of pistons, 372
pump, 32 maintenance, 131-167 Vibration, 323
Valves, 82, 131 performance problems, 324 damaging, 374
assembly, 161-162, 165 plate, 82, 143, 149, 164 frequency, 97
acceleration, 136 polarization, 377 monitoring, 361
analysis, 329 poppet, 144,145 noise and, 305-307
automatic, 31 reconditioning and periods, 90
channel, 82, 139-140 rebuilding, 162-167 safety, 374
component, 148 rectangular, 139, 140 switches, 375
concentric ring, 141 reed, 139, 141 sympathetic, 329
cover, 159, 161,265,323, relief, 319,384 vs. crankangie patterns,
325,377 restraint, 161, 162, 163 332-334
design, 132, 138 ring, concentric, 141 Viscosity, 111, 113, 125, 126