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BSV-20F
3.1 Precautions for storage and installation
1. The product must be stored indoors with good ventilation, little dust and low humidity.
2. Installation must be done by an experienced professional with proper protection for head, eyes,
and limbs.
3. When installing, check the direction of the product so that the fluid flowing and the arrow marked
on the product are in the same direction.
* Installing the product in wrong directions prevents the product from functioning properly.
4. When installing, align the product and the pipes to avoid excessive stress applied to the product.
5. Before installing the product, remove foreign substances and scale inside the piping.
* Failure to follow this notice may result in malfunction due to ingress of foreign substances.
6. If there is a possibility of freezing, take proper measures to remove water inside the product and
piping after use and also adopt anti-freezing measures.
4.1 Precautions for operation
Before flowing the fluid, make sure that there is no danger when the fluid flows to the end of piping.
* Failure to follow this notice may result in physical damage due to fluid outflow.
1. Do not use any tools for turning the handwheel.
* Using a tool damages the handwheel.
2. When using the product with its valve fully open, turn the handwheel clockwise by 45 degrees from
the fully open position to prevent the valve from being stuck.
Nominal size
15A
20A
25A
32A
40A
50A
65A
80A
100A
125A
150A
3. Storage and Installation
Caution
4. Operation
Warning
Caution
2
[mm]
L
H
110
193
120
193
130
208
160
201
180
224
230
228
292
270
318
295
356
352
400
380
444
427
Weight
(kg)
3.3
3.8
5.2
6.2
8.0
10.2
15.0
21.0
35.0
51.0
68.0
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