Instruction Manual

Instruction Manual
D103221X012
D3 FloPro Valve
February 2014
15
Figure 6. Spring Locations As Seen From Above Lower Actuator Casing
6SPRINGS
3 SPRINGS 2 SPRINGS
15. Remove the stem O-ring (key 25) and the bonnet bushing (key 18).
16. If the hammer nut needs to be removed from the bonnet, the spring pins (or pipe plugs) (key 6, figures 7 or 8) can
be removed with locking pliers.
Actuator Assembly
Spring-to-Close (Air-to-Open)
Key numbers are referenced in figure 7. The proper packing arrangement is shown in figure 3.
CAUTION
Avoid possible product damage in the following procedure by ensuring there are no burrs or sharp edges on any threads or
surfaces which may damage internal valve components during assembly.
Make sure all parts are clean and in good condition before starting assembly. There should be no burrs or sharp edges
on any threads or surfaces that might cut or damage soft parts in the valve assembly.
CAUTION
The threads on factory-produced valve stems have been specially machined to avoid O-ring, bushing, or packing damage
during trim maintenance. Use of other than a factory-produced valve stem may result in early stem O-ring, bushing, and
packing failure.
WARNING
The spring pins/pipe plugs (key 6) must a lways be in place during valve operation. They provide a safeguard against injury
when the unit is being disassembled.
1. Install the bonnet nut (key 5) and spring pins (or pipe plugs) (key 6, figures 7 or 8) if previously removed.