Wilden PROFLO P.025, Engineering, Operation & Maintenance

Page: 15 / 28

WIL-10080-E-06
Wilden
®
15
Disassembly / Reassembly
Step 4
NOTE: Top valve seats of
aluminum P .025 pumps are
cast in the liquid chamber.
Step 4a
To remove top and bottom valve
seats, on stainless steel or Hastelloy
®
pumps, use an O-ring pick and pull
seats out from top to bottom or use
3/16" rod and push seats through.
Step 5
Remove bottom manifold. Inspect balls and
seats for abrasion. Inspect seat O-rings and
manifold O-rings for swelling, cracking, or
other damage. These parts should be
replaced if damage is observed.
NOTE: Aluminum pumps require
two (2) O-rings per valve seat.
Step 6
Loosen clamp band with 5/16" socket and
3/8" wrench. Remove screw and nut.
Step 7
After clamp bands are removed, pull
chambers away from center section.
Step 8
Remove diaphragm by turning in
counterclockwise direction.
NOTE: PTFE-fitted pumps (shown)
utilize a Neoprene back-up O-ring.
Rubber or TPE-fitted pumps do not.
(See Step 10 for details .).