2
BSV-20F
[mm]
3. Storage and Installation
3.1 Precautions for storage and installation
Caution
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. Operation
4.1 Precautions for operation
Warning
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.
Caution
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
L
H
Weight
(kg)
15A
110
193
3.3
20A
120
193
3.8
25A
130
208
5.2
32A
160
201
6.2
40A
180
224
8.0
50A
230
228
10.2
65A
292
270
15.0
80A
318
295
21.0
100A
356
352
35.0
125A
400
380
51.0
150A
444
427
68.0
