AsahiAV Type 55 User manual

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
Serial No.
H-A020-E-14
Contents
(1) Be sure to read the following warranty
clauses of our product 1
(2) General operating instructions 2
(3) General instructions for transportation,
unpacking and storage 3
(4) Name of parts 4
(5) Maximum working pressure vs. temperature 5
(6) Specifications of actuator 6
(7) Specifications of solenoid valve 8
(8) Specifications of limit switch 9
(9) Specifications of pressure reducing valve
with filter 9
(10) Specifications of speed controller 10
(11) Installation procedure 10
(12) Support setting procedure 13
(13) Air piping procedure 14
(14) Connection of limit switch procedure 16
(15) Connection of solenoid valve procedure 17
(16) Operating procedure 18
Manual operating procedure 18
Automatic operating procedure 20
Adjustment of opening / closing
speed procedure 21
(17) Disassembly and assembly procedure 23
(18) Stopper adjustment procedure 24
(19) Inspection items 25
(20) Troubleshooting 25
(21) Handling of residual and waste materials 26
Butterfly Valve Type 55・Type 55IS
Pneumatic Actuated Type TA
User’s Manual
Type 55 50-250mm (2”-8”)
Type 55IS 50-400mm (2”-16”)

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
1
This user’s guide contains information important to the proper installation, maintenance and safe use
of an ASAHI AV Product. Please store this manual in an easily accessible location.
<Warning & Caution Signs>
This symbol reminds the user to take caution due to the potential for serious injury or
death.
This symbol reminds the user to take caution due to the potential for damage to the
valve if used in such a manner.
<Prohibited & Mandatory Action Signs>
Prohibited: When operating the valve, this symbol indicates an action that should not
be taken.
Mandatory action: When operating the valve, this symbol indicates mandatory actions
that must be adhered to.
(1)Be sure to read the following warranty clauses of our product
- Always observe the specifications of and the precautions and instructions on using our product.
- We always strive to improve product quality and reliability, but cannot guarantee perfection.
Therefore, should you intend to use this product with any equipment or machinery that may pose
the risk of serious or even fatal injury, or property damage, ensure an appropriate safety design or
take other measures with sufficient consideration given to possible problems. We shall assume
no responsibility for any inconvenience stemming from any action on your part without our written
consent in the form of specifications or other documented approval.
- The related technical documents, operation manuals, and other documentation prescribe precautions
on selecting, constructing, installing, operating, maintaining, and servicing our products.
For details, consult with our nearest distributor or agent.
- Our product warranty extends for one and a half years after the product is shipped from our factory
or one year after the product is installed, whichever comes first. Any product abnormality that
occurs during the warranty period or which is reported to us will be investigated immediately to
identify its cause. Should our product be deemed defective, we shall assume the responsibility to
repair or replace it free of charge.
- Any repair or replacement needed after the warranty period ends shall be charged to the customer.
- The warranty does not cover the following cases:
(1) Using our product under any condition not covered by our defined scope of warranty.
(2) Failure to observe our defined precautions or instructions regarding the construction, installation,
handling, maintenance, or servicing of our product.
(3) Any inconvenience caused by any product other than ours.
(4) Remodeling or otherwise modifying our product by anyone other than us.
(5) Using any part of our product for anything other than the intended use of the product.
(6) Any abnormality that occurs due to a natural disaster, accident, or other incident not stemming
from something inside our product.
Warning
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
2
(2) General operating instructions
- Never attempt to disassemble an actuator.
(If disassembled forcible, internal parts may jump out and this is very dangerous.)
- Using a positive-pressure gas with our plastic piping may pose a dangerous condition due
to the repellent force particular to compressible fluids even when the gas is under similar
pressures used for liquids. Therefore, be sure to take the necessary safety precautions
such as covering the piping with protective material. For inquiries, please contact us.
For conducting a leak test on newly installed piping, be sure to check for leaks under water
pressure. If absolutely necessary to use a gas in testing, please consult your nearest
service station beforehand.
- When installing a valve, the AV gasket is basically unnecessary. But using a gasket gives
more stable sealing ability in case of using a plastic flange, where easy occurrence of dent,
mark or distortion can be expected.
- Do not step on or apply excessive weight on valve. (It can be damaged.)
- Do not use AV valves in a place where they may become submerged in water.
- Do not use the valve in conditions where the fluid may have crystallized.
(The valve will not operate properly.)
- Keep the valve away from excessive heat or fire. (It can be damaged, or destroyed.)
- Always operate the valve within the pressure vs. temperature range.
(The valve can be damaged or deformed by operating beyond the allowable range.)
- Allow sufficient space for maintenance and inspection.
- Select a valve material that is compatible with the media. For chemical resistance
information, refer to “CHEMICAL RESISTANCE ON ASAHI AV VALVE”.
(Some chemicals may damage incompatible valve materials.)
- Keep the valve out of direct sunlight, water and dust. Use cover to shield the valve.
(The valve will not operate properly.)
- Perform periodic maintenance. (Leakage may develop due to temperature changes or
periods of prolonged storage, rest, or operation.)
- Set valve support on the valve.
- The AV valves must be used within the specifications specifically applicable to the Product.
- If the actuator is used in an environment below 5℃ temperature, its operating fluid must
be free from the water and moisture contained in it because of possible problems due to
the freeze.
- The operating fluid must be clean air filtered through a pertinent air filter.
Caution
Warning

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
3
(3) General instructions for transportation, unpacking and storage
- When suspending and supporting a valve, take care and do not stand under a suspended valve.
- This valve is not designed to handle impacts of any kind. Avoid throwing or dropping the valve.
- Avoid scratching the valve with any sharp object.
- Do not over-stack cardboard shipping boxes. Excessively stacked packages may collapse.
- Avoid contact with any coal tar creosote, insecticides, vermicides or paint.
(These chemicals may cause damage to the valve.)
- When transporting a valve, do not carry it by the handle.
- Store products in their corrugated cardboard boxes. Avoid exposing products to direct sunlight, and
store them indoors (at room temperature). Also avoid storing products in areas with excessive
temperatures. (Corrugated cardboard packages become weaker as they become wet with water or other
liquid. Take care in storage and handling.)
- After unpacking the products, check that they are defect-free and meet the specifications.
Caution
Warning

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
4
(4) Name of parts
※Reference
[1]
Body
[5]
Bush
[22]
Joint
[2]
Disc
[6]
O ring (A)
[22a]
Screw (B)
[3]
Seat
[7]
Bolt (A)
[23]
Bolt (D)
[4a]
Stem (A)
[20]
Actuator
[24]
Bolt-nut
[4b]
Stem (B)
[21]
Stand
[51]
O ring (B)
50-150mm (2”-6”) : Stand [21] is PPG. 200,250mm (8”, 10”) : stand [21] is SUS304.
Butterfly Valve Type 55
Nominal size 50-250mm (2”-8”)
Butterfly Valve Type55IS
Nominal size 50-400mm (2”-16”)
Butterfly Valve Type55IS
Nominal size 350-400mm(12”-14”)
Nominal size
65mm (21/2”),
300-400mm (12”-16”)
[４ｂ]

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
5
(5) Maximum working pressure vs. temperature

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
6
(6) Specification of actuator
Type55
Actuation
Nominal
Size
Actuator
name
Angle
adjustment
range
Standard
operating
pressure
MPa ｛kgf/cm2｝
Air
consumption
N
l
per 1 open
and close
(at 0.4MPa)
Air supply bore
Double
Action
Type
50mm (2”)
TA2A-050D
±5°
0.4 ｛4.1｝
0.9
Rc 1/4
65mm (2 1/2”)
80mm (3”)
TA2A-063D
±5°
0.4 ｛4.1｝
1.7
Rc 1/4
100mm (4”)
125mm (5”)
TA2A-080D
±5°
0.4 ｛4.1｝
3.2
Rc 1/4
150mm (6”)
TA2A-100D
±5°
0.4 ｛4.1｝
6.6
Rc 1/4
200mm (8”)
TA2A-125D
±5°
0.4 ｛4.1｝
13.3
Rc 1/4
250mm (10”)
TA2A-160D
±5°
0.4 ｛4.1｝
27.1
Rc 1/4
Single
Action
Type
50mm (2”)
TA2A-050R
±5°
0.4 ｛4.1｝
1.7
Rc 1/4
65mm (2 1/2”)
80mm (3”)
TA2A-063R
±5°
0.4 ｛4.1｝
3.3
Rc 1/4
100mm (4”)
125mm (5”)
TA2A-080R
±5°
0.4 ｛4.1｝
6.1
Rc 1/4
150mm (6”)
TA2A-100R
±5°
0.4 ｛4.1｝
12.8
Rc 1/4
200mm (8”)
TA2A-125R
±5°
0.4 ｛4.1｝
21.6
Rc 1/4
250mm (10”)
TA2A-160R
±5°
0.4 ｛4.1｝
42.7
Rc 1/4

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
7
Type55IS
Actuation
Nominal
Size
Actuator
name
Angle
adjustment
range
Standard
operating
pressure
MPa ｛kgf/cm2｝
Air
consumption
N
l
per 1 open
and close
(at 0.4MPa)
Air supply bore
Double
Action
Type
50mm (2”)
TA2A-050D
±5°
0.4～0.7
{4.1～7.1}
0.9
Rc 1/4
65mm (2 1/2”)
80mm (3”)
TA2A-063D
±5°
0.4～0.7
{4.1～7.1}
1.7
Rc 1/4
100mm (4”)
TA2A-080D
±5°
0.4～0.7
{4.1～7.1}
3.2
Rc 1/4
125mm (5”)
150mm (6”)
TA2A-100D
±5°
0.4～0.7
{4.1～7.1}
6.6
Rc 1/4
200mm (8”)
TA2A-125D
±5°
0.4～0.7
{4.1～7.1}
13.3
Rc 1/4
250mm (10”)
300mm (12”)
TA2A-160D
±5°
0.4～0.7
{4.1～7.1}
27.1
Rc 1/4
350mm (14”)
400mm (16”)
TA-200D
±5°
0.4～0.7
{4.1～7.1}
56.8
Rc 3/8
Single
Action
Type
50mm (2”)
TA2A-050R
±5°
0.4～0.7
{4.1～7.1}
1.7
Rc 1/4
65mm (2 1/2”)
80mm (3”)
TA2A-063R
±5°
0.4～0.7
{4.1～7.1}
3.3
Rc 1/4
100mm (4”)
TA2A-080R
±5°
0.4～0.7
{4.1～7.1}
6.1
Rc 1/4
125mm (5”)
150mm (6”)
TA2A-100R
±5°
0.4～0.7
{4.1～7.1}
12.8
Rc 1/4
200mm (8”)
TA2A-125R2
±5°
0.4～0.7
{4.1～7.1}
21.6
Rc 1/4
250mm (10”)
300mm (12”)
TA2A-160R2
±5°
0.4～0.7
{4.1～7.1}
42.7
Rc 1/4
350mm (14”)
400mm (16”)
TA-200R
±5°
0.4～0.7
{4.1～7.1}
68.4
Rc 3/8

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
8
(7) Specification of solenoid valve (option)
Actuation
Nom. size
Type sign
Pipe bore
Effective
cross section
area
Power
consumption
Additional function
Double
actuation
Type
Air to open
Air to close
50-250mm
(2”-10”)
Type
55,55IS
4N3S102K-W□-
G31193
Rc 1/4
10mm2
or more
AC ; 6VA
DC ; 5.5W
○Silencer with needle
valveattached
(to be used as speed controller)
○Bypass valve built – in
Double
actuation
Type
Air to open
Air to close
300-400mm
(12”-16”)
Type
55IS
453S403C-W□-
G30800
Rc 1/4
40mm2
or more
AC ; 6VA
DC ; 5W
50mm-250mm (2”-10”) 4N3S102K-W□-G31193
300mm-400mm (12”-16”) 453S403C-W□-G30800
※()is special order。
connection diagram JIS sign
Specification
sign
AC100V 50/60Hz
1
AC110V 50/60Hz
(2)
AC200V 50/60Hz
3
AC220V 50/60Hz
(4)
DC24V
5
DC48V
(6)
DC100V
(7)
DC125V
(8)
DC110V
(9)

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
9
(8) Specification of limit switch (option)
Actuation
Nom. size
Type sign
Protection grade
Type of limit switch
Double actuation Type
Air to open
Air to close
50-80mm (2”-3”)
SB2-11
IP65
V-112-1C24
(OMRON)
100-150mm
(4”-6”)
SB2-16
200-300mm
(8”-12”)
SB2-22
350-400mm
(14”-16”)
TA-200-SB
IP 55
Limit switch rating connection diagram (At intermediate opening)
Rate voltage
(V)
resistive load
(A)
Inductive load
(A)
AC125
11
7
AC250
11
7
DC115
0.5
0.1
DC250
0.25
0.04
(9) Specification of pressure reducing valve with filter (option)
Actuation
Nominal size
Type sign
Pipe bore
Element degree
Of filtration
Double actuation Type
Air to open Type
Air to close Type
50-300mm
(2”-12”)
55,55IS
ARU2-02-8A-G
Rc 1/4
5μm
350,400mm
(14”,16”)
55IS
ARU3A-03-10A
Rc 3/8
40μm
JIS sign
1
2
COM
N O
4
3
COM
N O
SW .1
SW .2
1
2
COM
N C
4
3
COM
N C
SW .1
SW .2
NO type NC type
SW.1: Contact closes when valve is closed (double acting/air to open)
Contact closes when valve is opened (air to shut)
SW2: Contact closes when valve is opened (double acting/air to open)
The contact closes when the valve is closed (air to shut)

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
10
(10) Specification of speed controller (option)
Actuation
Nom. size
Type sign
Pipe bore
Effective cross section area
(mm2)
Needle No. of
revolution
Free flow
Control flow
Double actuation /
Air to open /
Air to close Type
50-300mm
(2”-12”)
55,55IS
SC7-08A
Rc 1/4
11
8.3
8 turns
350mm,400m
(14”,16”)
55IS
SC7-10A
Rc 3/8
16
14
(11) Installation procedure
- When suspending and supporting a valve, take care and do not stand under a suspended valve.
- Be sure to conduct a safety check on all hand and power tools to be used before beginning work.
- Wear protective gloves and safety goggles as fluid remain in the valve even if the pipeline is empty. (You
may be injured.)
- When installing a valve, the AV gasket is basically unnecessary. But using a gasket gives more stable
sealing ability in case of using a plastic flange, where easy occurrence of dent, mark or distortion can be
expected.
- When installing a pipe support by means of a U-band or something similar, take care not to over-tighten.
(Excessive force may damage the pipe.)
- Do not install the valve with the disc fully closed. (The disc may pinch into the seat, resulting in a high
operating torque and preventing the valve from operating properly.)
- When installing pipes and valves, ensure that they are not subjected to tension, compression, bending,
impact, or other excessive stress.
- Use flat faced flanges for connection to AV Valves.
- Ensure that the mating flanges are of the same standards.
Warning
Caution
JIS sign

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
11
- Care must be used during piping installation to ensure that the pipes or flanges are properly aligned so that
the valve disc does not contact them in any setting. Misalignment as in Figure below will result in damage
to the valve.
In case of the thick of the connection part (flange and pipe) is too thick shave the flange or the pipe inside order to avoid the
contact of pipe and disk. If inside diameter of the connection part is larger than size D, shaving is not necessity.
● Torque wrench ● Bolt, Nut, Washer (For many flanges specification)
● Spanner wrench or lever handle for Type TA (option) ● AV gasket (If necessary)
Procedure
1) Leave the valve slightly opened by spanner wrench or lever handle
(Option).
※
2) Set the valve between the coupled flange.
3) Insert washers and bolts from the pipe side, insert washers and nuts from the
valve side, then temporarily tighten them by hand.
4) Using a torque wrench, tighten the bolts and nuts gradually to the specified
torque in a diagonal manner (Refer to fig.1.)
Unit: mm (inch)
Nominal size
Diameter D
Chamfer angle θ°
Type55
Type55IS
Type55 & 55IS
50
(2”)
47
(1.85”)
42
(1.65”)
40
65
(2 1/2”)
-
-
54
(2.13”)
40
80
(3”)
71
(2.80”)
74
(2.91”)
30
100
(4”)
92
(3.62”)
94
(3.70”)
30
125
(5”)
119
(4.69”)
121
(4.76”)
25
150
(6”)
143
(5.63”)
149
(5.87”)
25
200
(8”)
182
(7.17”)
186
(7.32”)
15
250
(10”)
237
(9.33”)
241
(9.49”)
15
300
(12”)
-
-
293
(11.54”)
15
350
(14”)
-
-
322
(12.68”)
15
400
(16”)
-
-
372
(14.65”)
15
Necessary items
Don’t turn the disc beyond the seat.
(Otherwise, the disc may be damaged.)
Interference of the Disc
NOT RECOMMENDED
Fig.2
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
12
- Tighten the bolts and nuts gradually with a torque wrench to the
specified torque level in a diagonal manner.
- When you insert a valve between flanges, please insert after extending the fields of flanges fully.
(If you insert a valve by force without fully extending fields of flanges, a liner may be turned over
and suffer a crack.)
Recommended torque value Unit： N･m｛kgf･cm｝[lb･inch]
Nom. Size
50, 65mm
(2”, 2 1/2”)
80, 100mm
(3”, 4”)
125, 150mm
(5”, 6”)
200, 250mm
(8”, 10”)
Torque value
Type55
22.5
{230}
[200]
30.0
{306}
[266]
40.0
{408}
[355]
55.0
{561}
[488]
Nom. Size
50-100mm
(2”- 4”)
125, 150mm
(5”, 6”)
200, 250mm
(8”, 10”)
300,350mm
(12”,14”)
400mm
(16”)
Torque value
Type55IS
30.0
{306}
[266]
40.0
{408}
[355]
55.0
{561}
[488]
60.0
{612}
[532]
80.0
{816}
[710]
<JIS 10K Standard>
Dimension of bolt length
Nom. Size
Bolt (Minimum)
Pieces
d
Type 55
Type 55IS
mm
inch
L
S
L(mm)
S(mm)
Bolt
Nut & Washer
50
2”
M16
130mm (5.11”)
35mm (1.38”)
130mm (5.11”)
35mm (1.38”)
4
8
65
2 1/2”
―
135mm (5.31”)
80
3”
140mm (5.51”)
8
16
100
4”
145mm (5.71”)
140mm (5.51”)
125
5”
M20
165mm (6.50”)
40mm (1.57”)
160mm (6.30”)
40mm (1.57”)
150
6”
180mm (7.18”)
200
8”
195mm (7.68”)
165mm (6.50”)
12
24
250
10”
M22
215mm (8.46”)
180mm (7.10”)
45mm (1.77”)
300
12”
－
－
190mm (7.50”)
16
24
350
14”
－
－
210mm (8.25”)
400
16”
M24
－
－
230mm (9.10”)
50mm (2.00”)
* Flange thickness are according to JIS B2220.
* When installing AV gasket, add 5 mm(0.2”).
Caution
Fig. 1
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
13
- The parallelism and axial misalignment of the flange surface should be under the values shown in the
following table to prevent damage the valve.
(A failure to observe them can cause destruction due to stress application to the pipe.)
Unit : mm (inch)
Nom. Size
Axial
Misalignment
Parallelism
(a-b)
50-80mm
(2”-3”)
1.0mm (0.04”)
0.8mm (0.03”)
100-150mm
(4”-6”)
1.0mm (0.04”)
1.0mm (0.04”)
200-400mm
(8”-16”)
1.5mm (0.06”)
1.0mm (0.04”)
(12) Support Setting Procedure
- Set valve support on the valve.
● Spanner wrench ● U-type clamp (with bolt) ● Rubber sheet
Level installation
Set the stand under the valve.
Spread the rubber sheet on the pipe and secure pipe with U-
type clamp.
Perpendicular installation
Spread the rubber sheet under the actuator and connection
part of body and actuator.
Spread the rubber sheet on the pipe and secure pipe with U-
type clamp.
(Axial misalignment)
(Parallelism)
Necessary items
Caution
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
14
(13) Air Piping procedure
<1>For a standard type and an attached speed controller type
- Do not remove a dust-proof cap provided to piping port before piping work starts.
- Avoid excessive tightening. (The threaded area of a pipe can be damaged.)
- Check the connection locations, air pipe sizes, and screw types with the approved drawings and other
documents for the product. Then lay the air piping.
- The operating fluid must be clean air filtered through a pertinent air filter.
- If the actuator is used in an environment below 5℃ temperature, its operating fluid must be free from the
water and moisture contained in it because of possible problems due to the freeze.
- Steel pipes must always be of the plated.
- Beforeinstallinganactuatorinpipeline,flashtheinsideofpipelinecompletely.
- Do not apply a sealant excessively lest it fall off in the pipeline when an actuator is piped.
- Threadedareaofapipemustbefreefromthesharpedgesandburr.
● Spanner wrench ● Seal tape (If seal tape isn’t used, leakage may be caused)
● Steel pipe or tube for piping ● Joint for steel pipe or tube
Procedure
1) Wind a seal tape onto the male screw of the joint with
a blank about 3mm (about 2 threads) left at the end.
2) Screw the joint in the piping female screw of the
actuator by hand to the full.
3) Screw the joint one turn with a spanner wrench.
※Avoid excessive tightening. (The valve can be damaged.)
4) Mount a steel pipe or a tube.
*The diagrams at left are without speed controllers, however, air
piping procedure is the same way as above.
Necessary items
Single action type
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
15
<2> For a pressure reducing valve with a solenoid valve and a pressure reducing valve with a filter.
- Do not remove a dust-proof cap provided to piping port before piping work starts.
- Avoid excessive tightening. (The threaded area of a pipe can be damaged.)
- The operating fluid must be clean air filtered through a pertinent air filter.
- If the actuator is used in an environment below 5℃ temperature, its operating fluid must be free from the
water and moisture contained in it because of possible problems due to the freeze.
- Steel pipes must always be of the plated.
- Before installing an actuator in pipeline, flash the inside of pipeline completely.
- Do not apply a sealant excessively lest it fall off in the pipeline when an actuator is piped.
- Threaded area of a pipe must be free from the sharp edges and burr.
● Spanner wrench ● Seal tape (If seal tape isn’t used, leakage may be caused)
● Steel pipe or tube for piping ●Joint for steel pipe or tube
Procedure
1) Wind a seal tape onto the male screw of the joint with
a blank about 3mm (about 2 threads) left at the end.
2) Screw the joint in the piping female screw of the
actuator by hand to the full. (Refer to fig.1, 2)
3) Screw the joint one turn with a spanner wrench.
※
4) Mount a steel pipe or a tube.
Necessary items
Avoid excessive tightening.
(The valve can be damaged.)
(Fig.1) Solenoid valve
(Fig.2) Solenoid valve, Pressure reducing valve with filter
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
16
(14) Connection of limit switch procedure
- Shut down the power on the equipment before connecting wires. There are risks of electrical shock
depending on the level of operating voltage.
- Be sure that the cover are put on during the operation.
- Connect the cables by using insulated sheathed crimping terminals in such a way as not to contact the
cover or housing. (Contact of a crimping terminal with the cover may disable the cover from being
closed or may cause a ground fault.)
- If you use the limit switch at 1mA-100mA or 5-30V, consult near Asahi dealer.
- Be sure that the terminal cover and body cover are put on during the operation.
● Screw driver (+) ● Screw driver (-)
● connector (G1/2) ● Wire stripper
Procedure
1) Remove the indicator.
2) Remove the fixed screws from casing using screw
driver (+).
※Don’t be missing the o-ring of case end.
3) Turn to counter clockwise and remove the piping port
protective cap.
4) Draw the cable through the connector.
5) Strip the cable with wire stripper.
6) Connect the cable to terminal board with a screw
driver (-) in accordance page 8.
※Tighten up the screws.
(Short circuit or shocks may occur.)
7) Tighten the connector to fix the cable.
8) The screws must be tightened in turn after set the
casing with screws driver (+)
※Be sure to set a o-ring when the casing is re-set.
(Short circuit or shocks may occur.)
9) Inset the indicator to the upper camshaft which must
be set same direction of the seal’s arrow.
Necessary items
Warning
Caution

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
17
(15) Connection of solenoid valve procedure
- Go after you surely interrupt a power supply when you do the installation of the terminal base line
is combined.
- Solenoid valve- A speed controller adjusts and fasten a lock nut by open ended spanners.
● Terminal crimping tool ● Screw driver (+)
● Connector (G1/2) ● Wire stripper
Procedure
1) Loosen the hexagon socket head cap screws, and remove
the cover.
※Don’t loose O ring.
(If not, electric leaks or shocks may occur.)
2) Remove the Faston terminal inserted into coil side and the
insulating sleeve.
※Insulating sleeve isn’t attached in Faston terminal.
3) Draw the cable through the connector to the cover.
4) Strip the cable with wire stripper.
5) Draw the lead wire through the cover.
6) Install the Faston terminal on the lead wire with a terminal-
crimping tool.
7) Insert the Faston terminal into the coil side. And fit the
cover.
8) Tighten the cover setting screws to fix it.
(The cover can be set with the wire extraction opening
turned upward or downward. (fig.1))
9) Tighten the cable by connector.
Necessary items
Fig.1

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
18
(16) Operating procedure
Manual Operating Procedure
- Don’t supply air during manual operation.
(When air is supplied during the manual operation, you may be injured.)
- In case of solenoid valve mounted, open the bypass valve to make atmospheric pressure in the actuator.
(It can’t do Manual operation.)
○Double action type
● Spanner wrench or lever handle (option).
Procedure
* In case of solenoid valve mounted, open the bypass valve to make pressure in the actuator atmospheric.
(It allows to operating manually.)
1) Attach the lever handle (Option) or the spanner wrench to the output
shaft in the upper part of the actuator, and turn the handle 1-2 times
between full open and full shut.
When the limit switch is attached, remove the cap, and use the shaft
for the operation.
Right turn （clock･wise) → Shut direction
Left turn (counterclock･wise) → Open direction
* Do not turn the lever handle or the spanner wrench forcibly when
the actuator is at the fully open or shut positions. (Otherwise the
valve may be damaged.)
2) Remove the lever handle (Option) or the spanner wrench from the
output shaft in the upper part of the actuator.
* In case of solenoid valve mounted, shut the bypass valve.
(Otherwise the air may leak.)
Necessary items
For solenoid valve

Installation, Operation and Maintenance Manual
Butterfly Valve Type 55・Type 55IS Pneumatic Actuated Type TA
19
Manual Operating Procedure
○Single action type
- Only for the actuator which is the manual operation with groove.
● Spanner wrench
Procedure
1) Loosen the locking nut with spanner wrench.
2) Turn the round handle for manual operation 1-2 times
between full open and full close.
Rotational direction of
round handle
Air to open type
Air to close type
Clockwise
Shut
Open
C-Clockwise
Open
Shut
Manual operation unit
Nominal
size
50mm
(2”)
65, 80mm
(2 1/2”~3”)
100, 125mm
(4”~5”)
150mm
(6”)
200mm
(8”)
250,300mm
(10”,12”)
350,400mm
(14”,16”)
Manual
operation
unit
About 24
About 25
About 28
About 28
About 36
About 38
About 40
3) Turn right the round handle to the full open or full close.
※Do not turn the handle forcibly at full operating positions.
(If not, a trouble will develop.)
4) Tighten the locking nut with a spanner wrench.
Necessary items
Caution