Safety instruction manual
Warnings
1.When the fluid medium is chemicals, solvents or mixed gases, c
heck
the
chemical resistance before using the products
.
Damage or
leakage
may occur to the valve upon the usage.
2.
Do not use the valve
in
applications
that
cause shak
ing
or shock
ing. Damage or leakage may occur to the valve upon usage
.
3.
Do not use the products
in environments
that have
vibration or shocking. D
amage or leakage may occur to the valve upon usage.
4.
Use soapy water or
any
other method to
check for
leakage before use.
5.
After
i
nstallation, carry out maintenance
and leakage inspections
periodically, considering
the
environment
on
frequency,
temperature, fluid flow rate, pressure, fluid medium, etc.
Danger to
to human life
can occur
from oxygen deficiency etc.
6.
Do not retighten the product while pressur
ized
. Valve deformation or breakage may occur and lead to fluid spouting. Make sure
to set
pressure to “0” and lower the temperature to normal before retightening.
7.
Do not use the valve outside
of its stated
specification. Otherwise accidents like a fluid leakage or piping coming-off may
occur
.
8.
Fluid and pressure may remain inside the valve
when
turning it to on/off while pressure is supplied. The residual fluid pressure may
increase due to
rise in
temperature
. If
the pressure exceeds maximum operating pressure
, valve breakage or fluid leakage may occur
.
9.The b
all seat may deform
or wear out, and cause
leakage in case
s where
fluid medium has high temperature and high flow rate or is
a
two-phase fluid
mixed with small particles.
10.
When open
ing or
clos
ing
the valve, turn the handle to
the
fully open
or
closed position.
Leaving the handle in the m
id
-
way position
may
cause scratch
ing
on
the
ball seat, fluid
leakage and decrease
lifespan
for the valve
.
11.Used alone, the m
ax
imum
operating pressure of the valve is
its own stated maximum operating pressure. However,
w
hen using
the
valve
with
a
push-in fitting, the max
imum
operating pressure should be t
hat of
the push-in fitting.
Cautions
1.
Do not disassemble or modify valve except
for
replacing handles.
Doing so will dam
age the valve function.
2.
Do not touch valve while using in
a
high temperature environment.
3.
Make sure to understand
the
valve
's components'
material properties, considering the fluid medium and usage environment before
use. Most parts are
made of SUS316 equivalent
,
but some parts where
the
fluid
medium
does not
come into contact
are made from
SUS304 equivalent.
4.
Consider the load
-bearing of
the piping when installing
the
valve as it may cause deformation and leakage.
5.
Do not tighten
the thread
too firmly. Excessive tightening can deform
the
valve body and ball seat. Follow the tightening torque
guide
for
tube fitting
s
.
6.
Make sure to
position the
wrench
properly
when tightening the valve
. Otherwise, improper positioning
may cause parts
to loosen
.
7.
The valve is not completely oil-free as oil may remain from
the
assembly process.
8.
The level of corrosion and dust emission from
the
valve varies by operating conditions. In case there is a possibility of negative
effects
on
machines or facilities due to these
operating
conditions, evaluate the suitability of the products in advance.
9.
Depending on the service fluid and/or frequency of open
ing and closing the
valve,
the
PTFE seal portion may
wear out
and generate
dust
.
.
If
your
application does not allow any dust emission, please take countermeasures like installing filters
located
downstream of the
valve.
10.
When us
ed in
vacuum systems, install a filter
located in
the upstream of the valve to prevent from clogging.
11.
Specialized SUS316 fittings
have been made specially to be used with the
NSBVF10 ball valves.
Using them for other uses
may cause
leakage.
1. The level of corrosion and dust emission from the fittings varies by operating conditions. In case there is a possibility of negative
effects on machines or facilities due to these conditions, evaluate the suitability of the products in advance.
■
SUS316 fitting safety instruction
Warnings
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2.
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Do not use the product in applications where water and liquid do not meet the product specification. Otherwise, it may cause
damage to the fittings, such as the tubing coming off and fluid leakage.
Be sure to use an Insert Ring when the fluid being used is liquid. There is a possibility of the tubing coming off and fluid leakage
in the following situation.
・
Using with fluid whose temperature changes drastically or under conditions where the temperature changes drastically.
・
Using in high temperature environments.