Industrial Machinery Repair Part Episode 1 Part 8 pptx

... Figure 8 .15 Illustrates how a safety valve functions 17 8 Compressors Crank arrangements Single crank Two cranks at 18 0° Two cranks at 90° Cranks at 18 0° Cranks at 90° Three cranks at 12 0° Cylinders ... discharge-pressure rating of the compressor. For standard 10 0- to 11 5-psig two-stage air compressors, safety valves are normally set at 12 5 psig. The pressure-relief safety...

Ngày tải lên: 05/08/2014, 11:20

... Valves 18 0 Chapter 10 Conveyors 203 Chapter 11 Couplings 215 Chapter 12 Dust Collectors 245 Chapter 13 Fans, Blowers, and Fluidizers 2 61 Chapter 14 Gears and Gearboxes 283 Chapter 15 Hydraulics 314 Chapter ... Floor Burlington, MA 0 18 03 Tel: 7 81 - 313 -4700 Fax: 7 81 - 313 - 488 2 For information on all Butterworth–Heinemann publications available, contact our World Wide Web h...

Ngày tải lên: 05/08/2014, 11:20

... lubrication methods; 11 Package the above elements into a lubrication program; 12 Establish storage and handling procedures; 13 Evaluate new lubricants to take advantage of state of the art; 14 Analyze ... supervisor 16 Why should you avoid loose-fitting clothing in the plant? A. It can create a barrier from sharp parts B. It can get caught in moving parts C. It is unprofessional D. None...

Ngày tải lên: 05/08/2014, 11:20

... top of the sheave groove. C. The belt is recessed more than 1 16 " into the groove sheave. D. The belt is recessed more than 1 8 " into the groove sheave. 44 Maintenance Skills Assessment 3 ... Drives: total right/20 = Belt Drives: total right /17 = Hydraulics: total right /16 = Couplings: total right /17 = Final Score: total of the scores /13 0 = 69% or below = Needs extensiv...

Ngày tải lên: 05/08/2014, 11:20

... 10 ,000 10 0,000 1 0 .1 0. 01 0.0 01 0.00 01 0.000 010 Acceptable Residual Unbalance per Unit of Rotor Weight, gm mm/kg Acceptable Residual Unbalance per Unit of Rotor Weight, LB-IN./LB 10 ,000 1, 000 10 0 10 1 0 .1 G830 G250 G100 G40 G16 G6.3 G2.5 G1 G04 Figure ... (Sealing helps) 1 Rolling Consult manufacturer above 15 0 ◦ C 2 1 2 (With seals) Sealing essential 4 Rubber...

Ngày tải lên: 05/08/2014, 11:20

... 8, 000 17 ,000 30,000 15 0,000 30 4,000 6,000 13 ,000 24,000 12 7,000 40 2 ,80 0 4,500 11 ,000 20,000 11 1,000 50 3,500 9,300 18 ,000 97,000 60 2,600 8, 000 16 ,000 88 ,000 70 6,700 14 ,000 81 , 000 80 5,700 12 ,000 ... can Bearings 89 Roller bearing Ball or roller bearing Ball Shaft speed, rpm Radial load, lb Speed limit 6 10 ,000 10 00 10 0 10 10 0 10 00 10 ,0002 346...

Ngày tải lên: 05/08/2014, 11:20

... teeth 6T 6T Driven Drive 18 00 rpm 18 00 rpm Figure 7 .8 Ratio 12 T 6T Driven Drive 18 00 r p m ____ r p m Figure 7.9 Speed ratio example Bearings 11 1 ● Do not spin bearings (particularly dirty ones) ... bumped as this can cause shock loading on the bearing surface. Chain Drives 12 7 Driven shaft rpm = 6 × 18 00 12 900 = 6 × 18 00 12 Now we understand how changing the size of...

Ngày tải lên: 05/08/2014, 11:20

... always true for ideal gases and is true for real gases under certain conditions. P 1 V 1 T 1 = P 2 V 2 T 2 15 8 Compressors Piping Piping should easily fit the compressor connections without needing ... levels than the opposed piston compressor illustrated in Figure 8 .14 . Suction valve (discharge valve on opposite side) 2nd stage 1st stage 1st stage Piston Air inlet Connecting rod...

Ngày tải lên: 05/08/2014, 11:20

... hour) (inches) (inches) 12 × 6 0.40 60 31. 5 4.0 15 × 6 0.49 73 41. 5 5.0 18 × 6 0.56 84 5.0 6.0 24 × 8 1. 16 17 4 10 .0 30 × 10 1. 60 240 14 .0 36 × 12 2.40 360 16 .0 Control Valves 19 3 Air introduced through this ... capacity, % 10 26 45 58 70 78 Control Valves 19 7 A (1) (2) (3) PPPT PPTT TT AAB A AABB PPTT ABB BB Figure 9 .16 Actuator-controlled valve schematics The...

Ngày tải lên: 05/08/2014, 11:20

... that can transmit 210 Conveyors Table 10 .4 Factor A for self-lubricating bronze bearings Conveyor . 6 9 10 12 14 16 18 20 24 diameter, in Factor A 54 96 11 4 17 1 255 336 414 510 690 Slight variations ... 6" diameter 20" diameter by the material lb/ft 3 1 45 50 17 0 11 0 2 38 50 12 0 75 3 31 75 90 60 4 25 10 0 70 50 512 1 2 30 25 Group 1 F factor is 0.5 for li...

Ngày tải lên: 05/08/2014, 11:20