Instruction Manual
D104138X012
D2T FloPro Valve
June 2017
12
Figure 5. Lubrication Locations on Packing
FEMALE PACKING ADAPTER
MALE PACKING ADAPTER
PACKING RING
LUBRICATE WITH 3mm (1/8 INCH
BEAD) OF SUPPLIED HIGH
PERFORMANCE FLUORINATED
GREASE (KEY 44)
LUBRICATE WITH 3mm (1/8 INCH
BEAD) OF SUPPLIED HIGH
PERFORMANCE FLUORINATED GREASE
10. If the bottom casing (key 20) has been removed, place O‐ring (key 16) into the groove provided in the top of the
bonnet. Place the bottom casing on the bonnet, oriented in the same position as marked in step 7 on page 9.
Screw the hex nut (key 18) onto the bonnet, and tighten to 203 N
S
m (150 lbf
S
ft).
11.
For air‐to‐open actuator action only (see figure 6),
assemble the actuator by first placing the O‐ring (key 37) over
the valve stem. Then place the washer (key 36) over the valve stem. Place the diaphragm (key 19) over the valve
stem, and position it so the holes in the diaphragm match the holes in the casing. Place the diaphragm plate (key
25) over the valve stem. Install the washer (key 24) and the diaphragm hex nut (key 26). Tighten the diaphragm hex
nut to 10 N
S
m (90 lbf
S
in), while holding the stem by the flats. Install six springs (key 27) and attach the upper casing
(key 21) by first installing the two
long
cap screws (key 30) opposite one another.
12.
For air‐to‐close actuator action only (see figure 7),
assemble the actuator by first placing 2 of the springs (key 27)
from the actuator into the bottom casing (key 20), equally spaced, 180 degrees apart. Place the washer (key 36)
over the valve stem, as shown in view A of figure 7. Then place the O‐ring (key 37) over the valve stem. Next install
the diaphragm plate (key 25) and, using the diaphragm plate, correctly position the actuator springs.
a. Place the diaphragm (key 19) over the stem, along with the washer (key 24). Position the diaphragm so the holes
in the diaphragm align with the holes in the bottom casing.
b. Insert a 1/8 inch diameter drift punch, or other suitable device through the 5/32 inch diameter hole in the valve
stem located below the bottom of the previously removed flow adjuster. Install the hex nut (key 26) and tighten
to 10 N
S
m (90 lbf
S
in). Use the 1/8 inch drift punch or other holding device to turn the stem to align the holes of
the diaphragm (key 19) to the lower casing (key 20).
13. Position the upper casing and install the two
long
cap screws (key 30) opposite one another. Install the six shorter
cap screws (key 22) and the hex nuts, tightening the actuator casing cap screws evenly using a cross‐tightening
procedure. Torque to 10 N
S
m (8 lbf
S
ft).
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 N
S
m (400 to 500 lbf
S
ft).