Thank you for purchasing this Koganei product.
Before using it, be sure to read this manual and make sure you use it correctly.
Keep this manual in a safe place for future reference.
M140802
Ver.1.1
Instruction Manual
Ver.1.1
FRZB Filter Regulator
For all FRZB Filter Regulators
●
Selection
Look at the Handling Instructions and Precautions, Specifications, Various
Characteristics, Dimensions, and other technical materials for each product
to make the correct decision.
●
Mounting (installation) direction, support, and securing
1.
The products cannot be mounted (installed) if a bending moment or twist-
ing moment is applied to the product or piping.
2.
Do not attach piping so that just one side is fixed as shown in the follow-
ing diagram. Support external piping separately.
Design and selection
Mounting (installation) and piping
Applying bending moment or twisting moment may damage
the product.
The muffler must be prepared by the user.
(In case of NPT thread specifications)
Operating the knob and the moment caused by the OUT (second-
ary) side pipes may damage the product's piping connections.
Note
Note
Note
●
Preventing contamination by foreign matter
1.
Remove all foreign matter, such as metal chips, cutting oil, or dirt, from
inside pipes with compressed air blow (flushing) and thorough washing
before fitting the pipes.
2.
Do not allow foreign matter, such as metal chips, or sealing tape from the
piping threads, to get into the pipes when installing the pipes and fittings.
●
Maintenance space requirements
Assure there is sufficient space for maintenance inspections and mainte-
nance work.
See the dimension diagrams for each of the products regarding the mainte-
nance space.
●
Attaching steel pipes and fittings
If steel pipes and fittings are attached to the threaded sections of the alumi-
num die-cast parts of the product, tighten them to the torque recommended
in our standards.
If a product is not securely fixed in place, it may fall over, be dropped,
or operate abnormally and cause an injury.
It there is not enough allowance for maintenance space, it is
impossible to remove the bowl assembly and replace the filter.
Also, it is impossible to do maintenance inspections so the equipment
may stop or the product may be damaged.
Tightening with excessive torque may damage the product or injure
workers or operators.
Use a tightening torque of 3.0 to 5.0 N
•
m [2.21 to 3.69 ft
•
lbf] if the
various pressure gauges are mounted on the 1/8 or 1/4 pressure port
plate.
Foreign matter entering the piping may damage the product or reduce
its performance and service life.
3.
Use the brackets to install the products.
4.
When mounting (installing) products, always make sure they are
secured and sufficiently supported.
Recommended tightening torque
Connecting
thread
M5
1/8
1/4
3/8
1/2
Torque
1 to 1.5
[0.7 to 1.1]
4.5 to 6.5
[3.3 to 4.8]
7 to 9
[5.2 to 6.6]
12.5 to 14.5
[9.2 to 10.7]
20 to 22
[14.8 to 16.2]
N
・
m [ft
・
lbf]
Note
Note
Note
Note
Note
Note
Note
MPa
0.1
0.2
0.3
0.4
0.8
0.2
0.4
0.6
0
1.0
MPa
SUP
OPEN
MPa
0.1
0.2
0.3
0.4
0.8
0.2
0.4
0.6
0
1.0
MPa
SUP
OPEN
MPa
0.1
0.2
0.3
0.4
0.8
0.2
0.4
0.6
0
1.0
MPa
SUP
OPEN
MPa
0.1
0.2
0.3
0.4
0.8
0.2
0.4
0.6
0
1.0
MPa
SUP
OPEN
MPa
0.1
0.2
0.3
0.4
0.8
0.2
0.4
0.6
0
1.0
MPa
SUP
OPEN
If liquid sealant gets on the polycarbonate parts, it may damage them.
4. If you are using liquid sealant, do not get it on the polycarbonate parts
(the bowl of the filter regulator and the front cover of the pressure gauge).
3. Wrap the sealing tape in the direction as shown in the diagram below
leaving 1.5 to 2 threads uncovered. When using liquid sealant, apply a
suitable amount and in the same way leave 1.5 to 2 threads uncovered.
If the sealing tape or sealant gets on the lip of pipes or
fittings, bits of it may get into the pipes and cause air leaks.
Leave 2 threads open
Leave 2 threads open
Direction of
wrapping
Sealing tape
Liquid
sealant
