Jafar 2005 Руководство по эксплуатации и техническому обслуживанию - Страница 10

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CAUTION!
If the knife gate valve is installed at a system termination, use counterflanges at the connection.
Table of maximum tightening torques for individual bolts for tightening the knife gate valve gland.
Note that the system must not expose the valve to bending or tensile stress from loading with the
unsupported pipeline sections. Assemble with consideration to pressure and temperature compensation of the
pipeline. The valve assembled and adjusted by the manufacturer is ready for installation. Any dismantling of
the valve components may result in loss of seal.
The connection of the gate valve and the diagram of possible installation directions are presented in the
figure below:
Bolt tightening torque
Bolt
thread
Bolt strength class
size
6.9
M4
2.7
M5
5
M6
9
M8
20
M10
42
M12
73
M14
115
M16
180
M18
245
M20
350
M22
470
M24
560
M27
900
M30
1200
M33
1630
M36
2100
M39
2720
DOKUMENTACJA TECHNICZNO RUCHOWA
8.8
10.9
[Nm]
3
4.3
6
8,5
11
15
25
35
51
70
87
120
135
195
210
300
290
410
410
580
560
780
710
1000
1050
1480
1430
2010
1940
2700
2490
3500
3220
4550
03-2016
10