mycom 3225**C Series User Manual

2202MYJE-MY-C8-N_2018.02.
Chapter 7 Related Documents
Compound 2-stage Screw Compressor 3225**C Tightening Torques for Bolts and Nuts
7-34
7.3 Tightening Torques for Bolts and Nuts
Table 7-2 List of Tightening Torques
 Hexagon socket head cap screw
P/N
What is tightened
Torque
Q’ty.
Size
N·m
kgf·cm
2-1
Main Rotor Casing (1) to
Suction Cover (1) and Bearing Head (1)
750
7500
52
M24×80
2-2
Main Rotor Casing (2) to
Suction Cover (2) and Bearing Head (2)
750
7500
44
M24×60
18-1
Bearing Cover to Bearing Head (1)
450
4500
20
M20×70
18-2
Suction Cover (1) to Bearing Head (2)
450
4500
24
M20×65
24
Balance Piston Cover to Suction Cover (2)
90
900
11
M12×30
53
Seal Cover to Bearing Cover
240
2400
8
M16×40
58-1
For Securing Unloader Slide Valve
240
2400
4
M16×50
58-2
For Securing Unloader Slide Valve
90
900
4
M12×40
61
Unloader Cylinder (2) to Balance Piston Cover
240
2400
2
M16×40
62-1
Unloader Cylinder (1) to
Bearing Cover and Bearing Head (1)
450
4500
8
M20×170
62-2
Unloader Cylinder (2) to
Balance Piston Cover and Suction Cover (2)
240
2400
6
M16×90
76-1
Unloader Cover (1) to Unloader Cylinder (1)
90
900
8
M12×35
76-2
Unloader Cover (2) to Unloader Cylinder (2)
90
900
8
M12×30
81
Bearing Gland (1) (2) to Unloader Cover
10
100
6
M6×15
162
Push Rod, Unloader Slide Valve (1)
90
900
5
M12×50
166-1
O-ring Gland (1) to Bearing Head (1)
10
100
4
M6×15
166-2
O-ring Gland (1) to Suction Cover (2)
6
60
4
M5×12
 Hexagon Head Bolt
P/N
What is tightened
Torque
Q’ty.
Size
N·m
kgf·cm
45-1
Thrust Bearing Gland (1)
120
1200
8
M20×55
45-2
Thrust Bearing Gland (2)
60
600
8
M16×45
94-1
Suction Flange (1) JIS 20K 350A
200
2000
12
M30P3×80
94-2
Suction Flange (intermediate pipe) (2) JIS 20K 200A
140
1400
12
M22×55
97-1
Discharge Flange (intermediate pipe) (1) JIS 20K 200A
140
1400
12
M22×55
97-2
Discharge Flange (2) JIS 20K 150A
160
1600
8
M22×55
217-1
Journal Lubrication Flange (1) JIS 20K 40A
40
400
4
M16X45
217-2
Journal Lubrication Flange (1) JIS 20K 250A
40
400
4
M16X45
220
Oil Injection Flange JIS 20K 20A
40
400
4
M12X35
352
Oil Return Outlet Flange on Suction Cover (2)
JIS 20K 20A
40
400
4
M12X35
355
Oil Return Outlet Flange on Bearing Cover JIS 20K 32A
40
400
4
M16X45
358
Oil Return Inlet Flange on Main Rotor Casing (1)
JIS 20K 32A
40
400
4
M16X45

mycom 3225**C Series Specifications

General

Brand	mycom
Model	3225**C Series
Category	Compressor
Language	English