Alfa Laval OptiLobe - Valves

Example of exploded view - Unique Mixproof
Cut-away views of
the plug and seat
design in Unique
mixproof valves.
Closed Open
Cover
Flushing tube
with o-ring
Lip seal
O-ring
Lower
valve plug
Seal ring
Clamp ring
Valve body
PTFE guide ring
PTFE
guide ring
Upper
valve plug
Upper sealing
element
Lip seal
O-ring
Clamp ring
Spray
nozzle
(spiral clean)
O-ring
O-ring
Lock
Clamp
Flushing tube
with o-ring
Spindle liner
Clamp
Actuator
Nozzle
Drain
Lower sealing
element
Inspect the valves regularly
The Alfa Laval valves are available in various con figurations to fit speci fic applications. To inspect the valves you need to know
the type of valves and which seals ar
e used. This information can be obtained online by using the serial number no which along
with year of manufacturing is laser marked on to the actuator. Preventive maintenance aims to prevent failure of equipment by
doing e.g. regular inspection of seals, lubrication and/or adjustments of surrounding equipment without prior knowledge of
equipment failure. Based on experience and knowledge about the running conditions, it is also possible to replace wear parts
before they fail. Keeping a record of the valve is a good way to build experience for inspection planning.
This Preventive Maintenance Guideline is applicable to most types of valves. Below are show some examples:
Mixproof valves Single seat valves
Buttery valves
Regulating valves
Ball valves Safety
valves
Sample
valves
Shutter
valves
Diaphragm
valves
Unique
Mixproof
SMP-BCAseptic
Mixproof
Unique
Mixproof
Tank Outlet
Unique
SSV
Unique SSV
Tank Outlet
LKAP
Air-Operated
LKB
LKB
UltraPure
LKB-F
Unique
RV-ST
Unique
RV-P
CPM-2 SBV Sanitary Unique Sampling
Valve
MH Shutter Unique DV-ST
UltraPure
Safety Valve
Suggested scheduled maintenance intervals
Several factors in fluence the maintenance cycle. The number of activations is important but even with few activations the rubber
materials will harden over time and need replacement. The time depends on the product contents, concentration and type of
CIP, SIP, differential pressure and processing temperatures. To ensure that your valves operate efficiently, it is essential to follow a
simple preventive maintenance programme. Good maintenance requires careful attention at regular intervals. For lubrication
please always refer to the manual for specific information on oil/grease types and required maintenance. Alfa Laval recommend:
• Always carefully follow the instruction manual for the speci fic valve.
• Lubricate relevant rubber parts with the lubricant supplied with the service kit before fitting.
• Service kit for valves actuator parts: Replace after 5 years or depending on working conditions.
• Service kit for valves product wetted parts: Replace every 12 months or depending on working conditions.
• Service kit for Unique sampling valves: Replace after 500-1000 samples depending on working conditions
The guidelines may not apply in all working conditions. Please contact Alfa Laval for information relating to specific applications.