Instruction Manual

Instruction Manual
D103031X012
D2 FloPro Valve
June 2011
13
WARNING
Upon reassembly, ensure that no foreign material blocks the safety vent hole as shown in figure 2. If the safety vent hole is
blocked or plugged, possible personal injury from the sudden release of process pressure during maintenance disassembly
may occur.
14. Lubricate a new O-ring (key 13) with lithium grease and place it into the valve body as shown in figure 6 or 7.
Ensure that no foreign material blocks the safety vent hole. Screw the bonnet into the valve body, and torque to a
range of 542 to 678 NSm (400 to 500 lbfSft).
15. For air-to-open actuator action only, attach the pressure line to the actuator, and supply pressure to the actuator.
Loosen the socket head screws (key 29) and remove the flow adjuster (keys 14 and 15). Release the pressure to the
actuator. This allows the plug to find its seated position.
16. Set the flow adjuster to the desired travel position (see figure 2), and tighten the flow adjuster socket head cap
screws to 3 NSm(26lbfSin).
17. For air-to-close actuator action only, attach a pressure line to the actuator. Supply pressure to the actuator to seat
the plug in the seat ring.
18. Set the flow adjuster to the desired travel position (see figure 2), and tighten the flow adjuster socket head cap
screws to 3 NSm(26lbfSin).