User Guide

Piston spring
#7525
Piston
retainer ring
#7526
Stroke control knob
O-ring #7517
Stroke control knob
#750SR-KIT
(stroke reference,
aluminum)
#750SSR-KIT
(stroke reference,
stainless steel)
Tamper-resist
stroke control
752V-DVD
(stainless steel)
#7545SS
Anti-torque washer
#7533
3
10
Tools required:
7/64” hex wrench
1/8” flat-tip screwdriver
6” adjustable wrench
6” needle-nose pliers
snap-ring pliers
Piston O-ring
11. Remove fluid body and diaphragm.
12. Remove stroke control knob and
spring by turning counter-clockwise.
13. Remove the piston retainer ring and
anti-torque washer.
14. Remove the piston.
15. Lubricate O-ring, piston shaft and air
cylinder wall with Nye Lubricant #865.
16. Reinstall components in
reverse order of disassembly.
Replacement Parts for Specific Valve Models
Fluid Body
Model UHMW* Acetal Stainless Fluid Inlet Fitting Tip Adapter Diaphragm
752V & n/a 7521E 7521E-SS
†
7543BP (1/4” OD Tube) 7536BP 7510
752V-SS
752V-UH & 7521F n/a 7521E-SS 7543BP (1/4” OD Tube) 7536NP 7510
752V-UHSS
752V-DVD 7521DVD-UH n/a 7521DVD-SS 7543BP (1/4” OD Tube) 7536BP 7510-DVD
*
U
ltra High Molecular Weight
†
optional
12
13
16
www.efd-inc.com [e-mail] USA 800-556-3484 Europe [phone] Asia [phone]
Sales and service of EFD dispensing systems are available worldwide.