Alfa Laval Unique Mixproof 3-body, Инструкция по эксплуатации

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4 Operation
The valve is designed for cleaning in place (CIP).
Study the instructions carefully and pay special attention to the warnings!
NaOH = Caustic soda.
HNO
3
= Nitric acid.
Step 8
Consumption cleaning fluids
The table below approximates the flow of cleaning solution through the valve vent tube during seat lift functions, SpiralClean of
vent and CIP of OD valve plug shafts at a CIP pressure of 1.5 bar (21 psi).
Valve size
DN/OD / DN
Seat lift
seat push
K
V
(m
3
/h)
Litre pr. min.
(1.5 bar/ 21psi)
Duration
Activations during
each CIP event
Seat lift 1.8 2.69
51/DN50
Seat push
1.3 1.83
0.5 sec 3
Seat lift 2.4 3.38
63.-76.1 / DN65-80
Seat push 2.1 2.95
0.5 sec 3
Seat lift 3.4 4.76
101.6 / DN100
Seat push 2.6 3.67
0.5 sec 3
SpiralClean 51-101.6 /
DN50-100
- 0.14 0.16 0.5 sec 3
CIP OD valve plug 51-63.5 /
DN50-65
- 0.29 0.32 5 sec 2
CIP OD valve plug 76.1-101.6
/ DN80-100
-
0.34 0.40 5 sec 2
Formula to estimate CIP flow during seat lift (for liquids with comparable viscosity and density to water)
Q = CIP - flow (m
3
/h).
K
V
value from the table above.
∆
p = CIP pressure (bar).
Assumption: density = 1
Step 9
Guide rings cleaning
When the valves are removed for replacement of wetted parts and / or sealing elastomers, it is important to remove, and hand
clean, the PTFE guide rings (positions 45, 54, 80 and 98) and their seating groves before placing the valves back into service.
See section 5.5 Assembly of valve
Step 10
Always rinse well with clean water after cleaning.
NOTE!
The cleaning agents must be stored/disposed of in accordance
with current regulations/directives.
Always rinse!
Clean water Cleaning agents
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