Fluid Body
1. Remove the two retainer screws.
2. To reinstall the fluid body, align fluid
body holes with diaphragm and air
cylinder body holes and reinsert
retainer screws. Tighten in accor-
dance with the following torque
specifications:
newton
Fluid body
meters
(inch pounds)
Acetal (black)
1.58 Nm
(14 inch pounds)
UHMW
*
(yellow)
0.79 Nm
(7 inch pounds)
Stainless steel
1.58 Nm
(14 inch pounds)
*
Ultra High Molecular Weight
Diaphragm
3. Back-out stroke control knob two
turns counterclockwise from the
closed position.
4. Remove fluid body.
5. Unscrew diaphragm (counter-
clockwise) and remove it from
the piston rod.
6. Thread-on the new diaphragm
and tighten with medium pressure.
7. Align the holes of the diaphragm
with the appropriate holes in the
air cylinder body by inserting a
flat tip screwdriver through the
hole in the stroke control knob
and engage piston rod slot.
8. Rotate rod, piston and diaphragm
assembly clockwise until holes
are aligned.
9. Reinstall fluid body.
10. Turn stroke control knob clock-
wise until closed, and then
reopen to approximate stroke.
1
2
4
5
6
7
9
11
Valve Disassembly and
Reassembly Procedures
CAUTION: To prevent damage, the valve
must be disassembled starting at the fluid
outlet end of the valve.
Diaphragm
UHMW
Fluid body
Tip Adapter
Fluid inlet fitting
(2) Retainer
screws
#7524
Fluid body
Tip
Adapter
Fluid inlet fitting
751V assembly
www.efd-inc.com [email protected]
USA 800-556-3484 44 (0) 1582 666334 Asia +86 (21) 5854 2345
Sales and service of EFD dispensing systems are available worldwide.
