![FLOWROX SKF Series Скачать руководство пользователя страница 28](http://html1.mh-extra.com/html/flowrox/skf-series/skf-series_installation-operation-and-maintenance-instructions_2308350028.webp)
28
© 2015 Flowrox Oy. All rights reserved.
Contents are subject to change without notice.
SKW/ SKF-2015-09-ENG
6.5
Valve assembly
Follow the general tightening torques in Table 11, when specific tightening instructions are
not given in this document or in other supplied documentation. Part numbers in assembly
instructions refer to
Mechanical structure.
Table 11.General tightening torques (bolt class 8.8, lubrication MoS
2
).
Size
M6
M8
M10
M12
M16
M20
M24
Tightening torques
Nm (ft-lbs)
7 (5)
17 (13)
33 (24)
57 (42)
140 (103)
282 (208)
499 (368)
6.5.1
Valve body, secondary seal, and gate assembly
1.
Install the secondary seal (7) in the sealing slot with the possible sealing lip facing
towards valve bore. Apply recommended silicon lubricant to any inner contours and
outside of the new secondary seal.
2.
Install grease nipples (8).
3.
Insert a piece of timber in the bore as shown in Figure 15. It is to prevent excessive
gate drop before clevis pin is installed.
4.
Apply recommended silicon lubricant on the chamfered edge and sides of the gate (2)
and slide it through the opening at the top of the valve body until it stands safely on
the piece of timber.
5.
Continue to the tower and actuator assembly in the next chapter.
Figure 15.Detail of timber insert.
Do not use hydrocarbon based grease. Use silicone
based lubricants such as DOW# 111, DOW 4, DOW 44,
GENERAL ELECTRIC COMPOUND G661, AND RHONE -
POULENE RHODORSIL III
WARNING