Bell & Gossett V1000520 Ultra Setter Pressure Independent Control Valves - Manual (Page 12)

Install the actuator
NOTICE:
To install an actuator on a valve already in line, close the shutoff valves (upstream first, then
downstream) in the piping or turn off the pump. This procedure allows the differential
pressure in the valve to drop.
1. Remove the protective cover from the valve stem.
2. Loosen knurled nut.
3. Set the required flow rate setting.
4. Retighten the knurled nut by hand.
5. Assemble actuator to valve and wire connections per actuator manufacturer's
instructions.
Installation
10 Ultra Setter ™ Pressure Independent Control Valves Installation, Operation and Service Manual