Instruction Manual

Instruction Manual
D103221X012
D3 FloPro Valve
February 2014
19
13. Install the male packing adaptor, lower anti-extrusion washer (key 10), and lower packing spacer over the valve
stem as shown in figure 3.
14. Firmly press all packing parts into the packing bore with a tube.
15. InstallthefiveBellevillesprings(key9)overthevalvestemasshowninfigure3.
16. Install the valve plug on the stem and insert a new pin (key 43).
17. Lubricate the threads of the packing retainer with anti-seize and install into the bonnet using a 1-1/8 inch wrench.
Make sure the Belleville springs (key 9) are completely enclosed by the packing retainer as shown in figure 4.
18. Torque the packing retainer to 81 NSm(60lbfSft). The packing retainer has been installed correctly when a
metal-to-metal contact has been made between the pac king retainer end and the bonnet. The packing retainer
threads should be completelyenclosedbythebonnet.
19. Lubricate the bonnet O-ring (key 4) with lithium grease and install onto the bonnet.
20. Ensure the seat ring is installed in the valve body.
21. Apply anti-seize lubricant on the threads of the valve body (key 1), the threads of the bonnet nut (key 5), and the
contact surfaces of the bonnet and bonnet nut flange.
22. I nstall the bonnet and actuator assembly into the valve body. Tighten the bonnet nut until the nut stops turning. A
few hammer blows will be required to ensure that the assembly is tight.
CAUTION
Non-symmetrical spring arrangement could cause actuator failure, resulting in possible product damage.
23. Install the correct number of springs (key 28) in a symmetrical pattern on the lower casing. See figure 6 for the
proper arrangement of the springs. The correct number of springs is dependent on your application and supply
pressure. See table 2 for the correct number of springs.
24. Install the actuator spacer (key 26), diaphragm O-ring (key 19), diaphragm plate (key 24), and diaphragm (key 23)
on the valve stem. Position the diaphragm so the holes in the diaphragm align with the holes in the bottom casing.
CAUTION
Avoid possible product damage which may affect proper operation of the diaphragm. Ensure the washer is aligned with the
hole in the diaphragm so the washer does not cut the diaphragm.
25. Install the diaphragm washer (key 22) over the valve stem threads with the lip facing downward. If you are unsure
of the correct orientation for the diaphragm washer, see figure 8 view A for the correct orientation. Make sure the
lip fits inside the diaphragm hole.
26. Lubricate the threads above the stem nut (key 27) with anti-seize lubricant to prevent galling of t he threads.
27. Install the stem nut and torque to 20 NSm(15lbfSft). Use a 1/8 inch drift punch to keep the valve stem from
turning as the hex nut is installed. The springs will be compressed when the stem nut is fully tightened.
28. Place the upper casing (key 32) on the diaphragm and lower casing. Position the u pper casing so the holes in the
upper casing align with the holes in the diaphragm and lower casing.
CAUTION
Do not lubricate cap screws (key 29 and 31). The following torque specifications are for unlubricated bolting.