Alfa Laval SMP-BC, Инструкция по эксплуатации

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4 Operation
The valve is adjusted and tested before delivery.
Study the instructions carefully and pay special attention to the warnings! Pay attention to possible faults.
CIP = Cleaning In Place
The items refer to the drawing and parts liste, see section 7 Parts list and service kits.
4.1 Operation
Step 1
Always read the technical data thoroughly (see chapter 6 Technical
data ).
Always release compressed air after use.
Never touch the clip assembly or the actuator piston
rod when the actuator is supplied with compressed
air.
CAUTION!
Alfa Laval cannot be held responsible for incorrect
operation.
Step 2
Never touch the valve or the pipelines when processing hot liquids
or when sterilizing.
Burning danger!
4.2 Fault finding
NOTE! Study the maintenance instructions carefully before replacing worn parts - see section 5.1 General maintenance
Problem Cause/result Possible solution
Product leakage
through the detecting valve
(closed valve) - Worn seal rings
- The two seal rings affected by
different products
- Incorrect fitting of seal rings
- Product deposits on the seat
and/or plug
- Replace the seal rings
- Select a different rubber grade
- Frequent cleaning
Product leakage
through the detecting valve
(open valve) - Worn O-ring (26a)
- Worn spindle (26d)
- Product deposits on the seat
and/or plug
- Replace the O-ring
- Replace the spindle
- Frequent cleaning
Product leakage
at stem and/or clamp - Worn/product affected lip seal (22a)
and/or seal rings (22c, 27) - Replace the seal rings
- Select a different rubber grade
Product leakage
through middle or lower valve body
(closed lower plug) - Worn/product affected plug seal ring
- Loose parts (vibrations)
- Product deposits on the seat
and/or plug
- Replace the seal ring
- Select a different rubber grade
- Tighten the loose parts
- Frequent cleaning
- Air leakage through the CIP and
detecting valve
- Air leakage at the actuator
Worn seal rings Replace the seal rings
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