A4
US
US
A4
US
A4
A4
US
19
Redefining Flow Control
Fig. 19.2
Fig. 19.3
Fig. 19.4
Fig. 19.1
Mounting the Actuator
securing Actuator to valve
Before fitting actuator to the valve ensure that the actuator
and valve are in the same position. The position of the
actuator can be confirmed by using the hand wheel
A suitable mounting flange conforming to ISO 5211 or USA
standard MSS SP-101 depending on the actuator supplied
must be provided to mount the unit to the valve top works
assembly.
Actuator to mounting flange assembly fixings must conform
to Material Specification ISO Class 8.8. Delta GZ coated Grade
A4 stainless steel fixings are recommended.
Actuator is supplied with a square output drive shaft. A
coupling and adaptor bracket is required to mate the actuator
to the valve stem.
Fig. 19.3 shows a typical valve adaptation kit.
Fit suitable mounting brackets and adaptors to the valve body.
Ensure that valve stem and actuator output shaft are in the
same position (Open or Closed).
Align the actuator output shaft with stem adaptor
Position actuator on to the valve mounting flange. It may be
necessary to adjust the position of the actuator to enable
alignment of the fixing bolts.
Tighten base fixings in accordance with table 2.
Push and turn the manual override to verify correct operation
of the valve.
Refer to the table on page 12.
Table 2
Thread size
Torque nm
Torque lbf.ft
5/16 UNC
14
9.5
M8
14
9.5
