6.
Mounting to valve
The gearboxes can be operated in any mounting position.
.
Prior to mounting, the gearbox must be checked for dam-
age. Damaged parts must be replaced by original spare
parts.
.
After mounting to valve, touch up any possible damage to
paint finish.
Mount gearbox to valve (with output drive types B1 – B4 or E)
.
Check whether mounting flanges match.
.
Check whether bore and keyway match the input shaft of the valve.
.
Apply a small quantity of grease to input shaft of valve..
.
Fit gearbox.
Information:
Ensure that the spigot fits uniformly in the recess and
that the mounting faces are in complete contact
.
Fasten with screws of minimum quality 8.8 according to table 2.
Information:
We recommend applying liquid thread sealing material to
the screws to avoid contact corrosion.
.
Fasten screws crosswise to a torque according to table 2.
Anschlussform A
Anwendung:
.
Anschlussform für steigende, nicht drehende Spindel
.
Zur Aufnahme von Schubkräften geeignet
8
Multi-turn gearbox GSTI 25.1 – GSTI 40.1 qualified for use in nuclear power plants
(Inside and Outside Containment)
Operation instructions
Figure 3
Output drive type B1/B2
Plug sleeve
Output drive type B3/B4
Bore with keyway
Screws
Fastening torque T
A
[Nm]
Thread
Strength class
8.8
A2-80/A4-80
10.9
M16
214
200
314
M20
431
392
615
M30
1,489
–
2,121
M36
2,594
–
3,695
Table 2: Fastening torques for screws
