WIL-10131-E-01
31
WILDEN PUMP & ENGINEERING, LLC
Step 1.
Figure 1
Gently remove the adhesive covering from
the back of the PTFE tape. Ensure that
the adhesive strip remains attached to the
PTFE tape.
Step 2.
Figure 2
Starting at any point, place the PTFE
tape in the center of the diaphragm bead
groove on the liquid chamber and press
lightly on the tape to ensure that the adhe-
sive holds it in place during assembly. Do
not stretch the tape during placement in
center of diaphragm bead groove.
Step 3.
Figure 3
The ends of the tape should overlap
approximately 13 mm (1/2”). Proceed to
install the Teflon
®
tape on the remaining
liquid chamber.
Only PVDF pumps come standard with expanded PTFE
Gasket Kits (P/N 08-9501-99) and P8 polypropylene pumps
come with kits for liquid chambers only (P/N 08-9500-99).
Carefully prepare sealing surfaces by removing all debris and
foreign matter from diaphragm bead and all mating surfaces.
If necessary, smooth or deburr all sealing surfaces. Mating
surfaces must be properly aligned in order to ensure positive
sealing characteristics.
Step 4.
Figure 4
Carefully remove the protective covering from the back of the
PTFE gasket attached to tape.
Step 5.
Figure 5
Install the valve ball, valve seat and o-ring.
Step 6.
Figure 6
Center the gasket so that it evenly covers the o-ring and seat
areas.
Step 7.
Figure 7
Gently apply pressure to gasket to ensure the adhesive main-
tains a positive seal to stay in place during pump assembly.
PVDF AND POLYPROPYLENE
PVDF
S e c t i o n 7 E
G A S K E T K I T I N S T A L L A T I O N
