3 Installation
Study the instructions carefully and pay special attention to the warnings.
The valve has welding ends as standard.
Weld carefully.
Check the valve for smooth operation after welding.
Step 2
Dismantle the valve in accordance with steps 1-3, section 5.2
Dismantling of valve
Pay special attention to the warnings!
Step 3
NOTE!
Always weld the valve body into the pipelines so that the valve
body seal rings can be replaced (change-over valve).
Maintain the minimum clearances (A and B) so that the lower valve
plug (change-over valve) and the actuator with the internal parts
can be removed.
A
B
1
B
2
(Incl. top unit)
Valve size
mm (figures in ( ) = inches)
DN40/38mm
280 (11)
550 (22)
730 (29)
DN50/51 mm
305 (12)
550 (22)
730 (29)
DN65/63.5mm
360 (14)
550 (22)
730 (29)
DN80/76mm
410 (16)
600 (24)
780 (31)
DN100/101.6mm
470 (19)
650 (26)
830 (33)
DN125
- (-)
750 (30)
930 (37)
DN150
- (-)
790 (31)
970 (38)
Stop valve
Change-over valve
(upper valve body)
B
1
/B
2
TD 430-086_1
1
TD 430-094_1
B
1
/B
2
A
1
1 = CAUTION!
Step 4
Assemble the valve in accordance with steps 4-6, section 5.3
Assembly of valve
Pay special attention to the warnings!
12
