ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
5 Maintenance
Study the instructions carefully.
The items refer to the parts list and service kits section. Handle scrap correctly.
A/A = Air/air activated.
Service tool: See Spare Parts.
5.4 Valve assembly
Reverse order of .
Lubricate O-ring (21) and lip seal (25) with Klüber Paraliq GTE 703.
Remember to tighten spindle and plug (use two 17 mm spanners).
- Change-over plug tighten torque = 2222 llbbff -- fftt ((3300 N
Nm
m))
- Shut-off plug tighten torque =1155 llbbff -- fftt ((2200 N
Nm
m))
If there are vibrations in the pipeline Alfa Laval recommend to use loctite nr. 243.
The clamps thread must be lubricated before tightening - max. torque for the clamps is 8-9 lbf - ft (10-12 Nm).
!
Pay special attention to the warnings.
5.5 Actuator bushing replacement
1. Unscrew and remove top and bottom bushings with O-rings.
2. Lubricate O-rings with Molykote Longterm 2 plus before fitting.
3. Fit bushings and O-rings. Tighten brushing with a torque = 7 lbf-ft (10Nm).
Be careful not to overtighten.
8
6
7
21
CONTACT CSI FOR MORE INFORMATION | CSIDESIGNS.COM | [email protected] | 417.831.1411
