EPDT-296
BALL VALVE
BLV-1
PRODUCT MANUAL
.
Thank you very much for choosing the Yoshitake product. To ensure the correct and safe use of the product,
please read this manual before use. This manual shall be kept with care for future references.
The symbols used in this manual have the following meanings.
Warning
This symbol indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
Caution
This symbol indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury or may result in only property damage.
1. Specification
Model
BLV-1
Nominal size
8 to 50A
Application
Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids
Max. using pressure
Saturated steam: 1.0 MPa
Water, Oil, Air, Other non-dangerous fluids at normal temperature (40 degree C
or less): 4.12 MPa
Caution
Please confirm that the indications on the product correspond with the specifications of the ordered
product model before use.
* If they are different, please contact us without using the product.
2. Storage and Installation
Caution
(1) Store the product indoors in a dust free, low humidity, dry and ventilated environment.
(2) Installation should be conducted by suitably trained personnel, wearing protective head, eye, hand
and foot protection.
(3) The product can be used for “complete opening” and “complete closing”. If the product is used at
intermediate opening, ball and ball seat may be damaged.
(4) Be careful that the threaded connection between the mating pipe and the internal threaded
connections of the valves are in line to avoid piping stresses in the valves.
(5) During transportation or storage of the product leakage may occur from the washer of packing due
to decreasing of tightening pressure by stress relaxation of the packing. Be sure to retighten the
washer of packing before use.
(6) When connecting the product and the piping, apply seal agent (such as seal tape) to the screw part
of the piping. Use seal agent appropriate for temperature, fluid, etc.
(7) In case that the product is expected to be frozen, be sure to conduct freezing prevention measures
or water draining treatment (after use).
(8) To connect the product to piping, use appropriate tool such as spanner with spanner apply part near
the piping. In addition, do not make piping work with applying a pipe wrench to the product. If doing
so, it leads to malfunction of the product.
3. Operation
Warning
Before applying fluid, make sure that there is no danger if the fluid flow into the end of the piping.
*Failure to follow this notice may result in property damage due to fluid leakage.