Azbil ACTIVAL VY5303A User manual

AB-6209
1
Specifications/Instructions
© 2007–2019 Azbil Corporation.All Rights Reserved.
ACTIVAL
Three-Way Ball Valve with Threaded-End Connection
General
ACTIVAL Model VY5303A is a three-way ball valve with
threaded-end connection (ISO 7-1: 1994). It proportionally
controls chilled/hot water for HVAC (heating, ventilation, and
air conditioning) applications.
Model VY5303A has bronze valve body, stainless-steel ball
and stem, and the components exposed to process fluid are
made of other corrosion resistant materials.
Cv value and size variation of Model VY5303A are best
suited to HVAC control.
It combines with the actuator Model MY53X0A. Regarding
the detailed information on the actuator, refer to
Specifications/Instructions of ACTIVAL Model MY53X0A.
Features
Compact and lightweight:
Valve can be installed in a restricted space such as
inside of compact AHU (air handling unit).
Bronze valve body applicable to PN16.
Easy assembly with Model MY53X0A actuator using no
tool, and no adjustment required.
Linear flow characteristic.
IMPORTANT:
To control ACTIVAL with a third-party controller,
please consult with Azbil Corporation’s sales
personnel.
Model Numbers
Base model
number Material Size/ CV Description
VY53 Three-way valve with
threaded-end connection
0 Bronze
3A00 Fixed
21 DN20 (3/4”) / 4 in Cv
22 DN20 (3/4”) / 6.3 in Cv
23 DN25 (1”) / 10 in Cv
31 DN32 (11/4”) / 16 in Cv
41 DN40 (11/2”) / 25 in Cv
Dimensions
Model number
Dimension
DN Rc* L
(mm)
H
(mm)
E
(mm)
M
(mm)
VY5303A0021 20 Rc 3/4 72 50 33 36
VY5303A0022 20 Rc 3/4 72 50 33 36
VY5303A0023 25 Rc 1 85 54 40 42
VY5303A0031 32 Rc 11/499 69 49 50
VY5303A0041 40 Rc 11/2109 72 55 52
* Rc: Internal tapered pipe thread complying with ISO 7-1:1994.
Figure 1. Dimensions and maintenance (mm)
Model MY53
actuator
Min. 120
Valve size (DN)
L
120
Min. 120
Tapered
pipe thread
(Rc)
E
M H Min. 400
91

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Safety Instructions
Please read instructions carefully and use the product as
specified in this manual. Be sure to keep this manual near
by for ready reference.
Usage Restrictions
This product is targeted for general air conditioning. Do
not use this product in a situation where human life may be
affected. If this product is used in a clean room or a place
where reliability or control accuracy is particularly required,
please contact Azbil Corporation’s sales representative.
Azbil Corporation will not bear any responsibility for the
results produced by the operators.
Warnings and Cautions
WARNING Alerts users that improper handling
may cause death or serious injury.
CAUTION Alerts users that improper handling
may cause minor injury or material
loss.
Signs

Alerts users to possible hazardous conditions
caused by erroneous operation or erroneous use.
The symbol inside indicates the specific type of
danger. (For example, the sign on the left warns of
the risk of electric shock.)

Notifies users that specific actions are prohibited to
prevent possible danger. The symbol inside 
graphically indicates the prohibited action. (For
example, the sign on the left means that
disassembly is prohibited.)

Instructs users to carry out a specific obligatory
action to prevent possible danger. The symbol
inside graphically indicates the actual action to
be carried out. (For example, the sign on the left
indicates general instructions.)
CAUTION
Do not freeze this product.
Doing so may damage the valve body and cause
leakage.

When piping this product, be sure there is no
foreign matter in the pipes.
If foreign matter remains in the pipes, the product
may break down.

Install and use this product according to the
specifications stated in this manual.
Failure to do so may cause device failure.

Do not screw a pipe excessively far into this
product.
Doing so may damage the inside of the valve and
cause leakage outside of the valve, or may cause
malfunction.

After installation, make sure no fluid leaks from the
valve-pipe connections.
Improper piping may cause fluid leakage outside of
the valve.
Do not put a load or weight on this product.
Doing so may damage the product.

Do not carelessly touch this product when it is used
to control hot water.
Doing so may result in burns, because the product
reaches a high temperature.

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Specifications
Item Specification
Type Three-way ball valve with threaded-end connection (internal), proportional control
Applicable actuator Model MY53X0A
Pressure rating PN16 (Max. working pressure: 1.6 MPa)
Valve size, Cv, Close-off rating Model number Size Cv Close-off rating
VY5303A0021 DN20 (3/4”) 4.0 0.5 MPa
VY5303A0022 DN20 (3/4”) 6.3 0.5 MPa
VY5303A0023 DN25 (1”) 10 0.5 MPa
VY5303A0031 DN32 (11/4”) 16 0.3 MPa
VY5303A0041 DN40 (11/2”) 25 0.3 MPa
Mounting orientation Horizontal or vertical mounting
Materials Body Cast bronze (equivalent to: - CuAn5An5Pb5-C (DIN EN1982) for global standard
- CAC406 (JIS) for Japanese standard)
Seat ring PTFE
Ball Cast stainless steel
Stem Stainless steel
O-ring EPDM
End connection Internal threaded-end (equivalent to ISO 7-1: 1994)
Applicable fluid Chilled/hot water, brine (ethylene glycol solutions, 50 wt.% max.)
Allowable fluid temperature 0 C to 100 C (non-freezing)
Flow characteristics Linear characteristic
Rangeability 30 : 1
Seat leakage in fully closed position 0.01 % of rated Cv value (0.0006 Cv or less for Model VY5303A0021)
Installation locations Indoor / outdoor
Note: Salt air, corrosive gas, flammable gas, and organic solvent must be avoided.
Mounting position Refer to ■“Installation,” ●“Mounting position.”
Weight
Actuator to combine is excluded.
Model VY5303A0021 0.7 kg
Model VY5303A0022 0.7 kg
Model VY5303A0023 0.9 kg
Model VY5303A0031 1.4 kg
Model VY5303A0041 1.7 kg
Parts Indication and Materials Flow Characteristic
Figure3.Flow characteristic diagram
No. Part name Material
1 Body
Cast bronze
(equivalent to: - CuAn5An5Pb5-C (DIN EN1982)
- CAC406 (JIS))
2 Cap Cast bronze (equivalent to CuAn5An5Pb5-C (DIN
EN1982))
3 Seat ring PTFE
4 Ball Cast stainless steel
5 Stem Stainless steel
6 O-ring EPDM
Figure 2. Parts identification and materials
5. Stem
2. Cap
3. Seat ring
3. Seat ring
4. Ball
1. Bod
y
6. O-ring
100
75
50
25
0 25 50 75 100
B AB A AB
Cv (%)
Position (%)

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Installation
Precautions for installation
CAUTION
Do not freeze this product.
Doing so may damage the valve body and cause leakage.
When piping this product, be sure there is no foreign matter in the pipes.
If foreign matter remains in the pipes, the product may break down.
Install and use this product according to the specifications stated in this manual.
Failure to do so may cause device failure.
To remove foreign substances inside the pipes, install a strainer on the inflow side of each valve. In case that the strainers
cannot be installed on the inflow side of each valve, install it on the pipe diverting sections (sections diverting from main
piping system to sub piping system).
Install the valve so that the flow direction of process fluid agrees with the arrow indicated on the valve body.
Installation location
Install the ACTIVAL (valve and the assembled actuator) in a position allowing easy access for maintenance and inspection.
Fig. 1 shows the minimum clearance for maintenance and inspection. When installing the ACTIAL in a ceiling space,
provide an access hole within the 50 cm radius of the ACTIVAL. And, place a drain pan under the valve.
Do not install the product nearby a steam coil or a hot-water (in high temperature) coil. High heat radiation may result in an
actuator malfunction.
Do not mount the valve on a pipe where water hammer occurs, or where solid objects including slug may accumulate.
Mounting position
The valve (assembled with the actuator) can be mounted in any position ranging from upright to sideways (90tilted). The valve
should be installed with its actuator vertically positioned above the valve body. However, the valve must be installed always in
upright position outdoors.
Figure 4. Mounting position
Piping
CAUTION
Do not screw a pipe excessively far into this product.
Doing so may damage the inside of the valve and cause leakage outside of the valve, or may cause malfunction.
Install a bypass pipe and gate valves on the inflow, outflow, and bypass sides. Also, install a strainer (with 40 or more
meshes) on the inflow side.
When installing the valve to pipes, do not allow any object, such as chips, to get inside a pipe or valve. Valve cannot fully
closes, or the valve seat may get damaged causing fluid leakage, due to an foreign object jammed inside the valve.
When piping, do not apply too much sealing material, such as solidifying liquid and tape, to the pipe connection sections so
that these materials flow into the valve. Valve cannot fully closes, or the valve seat may get damaged causing fluid leakage,
due to the sealing material jammed inside the valve.
Upright Sideways (Indoors only)
Incorrect examples
Correct examples

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When connecting the valve to pipes, hold the valve body (where a pipe is screwed) with a tool such as a wrench, and screw
the pipe into the valve. (See Fig. 5.) Do not apply excessive torque to the pipe. Refer to the table in Fig. 5 for the
recommended torque.
Figure 5. Valve connection to a pipe
Before activating the ACTIVAL (valve with actuator), flush the pipes (with the ACTIVAL installed) at the maximum flow rate
to remove all the foreign substances. Fully open (in 100 % position) the ACTIVAL to flush.
(Factory preset position: Port A 100 %)
CAUTION
After installation, make sure no fluid leaks from the valve-pipe connections.
Improper piping may cause fluid leakage outside of the valve.
Do not put a load or weight on this product.
Doing so may damage the product.
Flow direction
Figure 6. Flow direction
Identification of the ports A and B
Valve body without heat insulation material wrapped:
Identify the ports with the letters ‘A’ and ‘B’ embossed on the valve body.
Valve body with the insulation material wrapped:
Identify the ports with the tip of the valve joint surface, as shown in Fig. 7.
The port on the side where the tip points is the port B.
Figure 7. Identification of port A / B
Heat insulation
Do not apply heat insulation to the joint surface. Correctly apply heat insulation to the valve as shown in Fig. 8.
Figure 8. Heat insulation
Factory preset position
Port A of the ACTIVAL is set in 100 % (fully open) position for shipment.
To r q u e
Incorrect holding
position
Correct holding position
Recommended torque to screw into the pipe
Valve size (DN) 20 25 32 40
Max. torque (Nm) 60 100 120 150
Mixing valve:
Port A/Port B Port AB
Diverting valve:
Port AB Port A/Port B
Joint surface
Tip of the
j
oint surface
Port B
Port A
Joint surface
Heat insulation
material
Heat insulation
material
Joint
surface
Correct application Incorrect application

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Assembling the valve Model VY5303A with the actuator Model MY53X0A
IMPORTANT:
Do not assemble the valve with any other actuator.
The actuator can be horizontally rotated every 90 degrees to fit into the valve mounting position (4 mounting
positions). Make sure the positions of the actuator and the valve as follows, referring to Fig. 8:
- Actuator: Indicator/manual lever points at 100 (fully open position).
- Valve: An arrow on the top of the stem points at 100 (fully open position).
(Align the hole on the side of the stem with the tip at the joint surface as ‘a’ in Fig. 8 shows.)
Set the ACTIVAL (actuator and valve) in 100 % position when changing the mounting position. If the valve in
0 % position is assembled with the actuator in 100 % position, the actuator put torque on the closed valve, and
the gear of the actuator gets damaged.
Figure 9. Mounting the actuator onto the valve
Mounting procedure
1) Manually turn the indicator/manual lever of the actuator
to “100” with the lever release button pressed.
Figure 10. Indicator/manual lever at 100 % (fully open) position
2) Move the lock lever to right-end to unlock.
Figure 11. Unlocking the lock lever
3) Confirm that the arrow on the top of the valve stem points
at “100”. A hole on the side of the stem faces the same
direction at which the tip of the valve joint surface (with
the actuator) points when the valve position is fully open.
(See ‘a’ in Fig. 9.)
Figure 12. Valve stem pointing at 100 % (fully open) position
4) Assemble Model MY53X0A actuator with the valve.
Engage 4 pins of the actuator with the mating holes on
the valve joint surface.
5) Move the lock lever to left-end to lock. Locked position is
indicated with the groove as shown in Fig. 13.
Figure 13. Locking the lock lever
Tip
Joint surface
Stem
Unlock.
A
ctuato
r
Model MY53X0A
Valve
Model VY5303A
Lock lever
Lever release button
Stem a
Indicator/
manual leve
r
Turn.
Press.
Locked position indication
Lock.

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Application Examples
Diverting application
Figure 14. Application example: Diverting valve
Mixing application
Figure 15. Application example: Mixing valve
Mounting Examples
Diverting application
Upright
90tilted
Figure 16. Mounting examples: Diverting valve
Mixing application
Upright
90tilted
Figure 17. Mounting examples: Mixing valve
Maintenance
CAUTION
Do not put a load or weight on this product.
Doing so may damage the product.

Do not carelessly touch this product when it is used
to control hot water.
Doing so may result in burns, because the product
reaches a high temperature.
Inspect the ACTIVAL according to Table 1.
Manually open/close the ACTIVAL at least once a month
if it is left in inactive state for a long period after
installation.
Visually inspect the ACTIVAL (e.g., fluid leakage) every
six months. If any of the problems described in Table 2
is found, take corresponding actions shown in the table.
If your problem is not solved by the corresponding action,
please contact Azbil Corporation near you.
A
B
A
B
B
A
B
A
A
B
AB
B
A
A
B
B A
AB
B A
AB
B A
AB
B A
AB

AB-6209
ACTIVAL is a trademark or registered trademark of Azbil Corporation in Japan or in other countries.
Specifications are subject to change without notice.
Building Systems Company
https://www.azbil.com/
Rev. 3.0 Dec. 2019 AB-6209
(J: AI-6209 Rev. 4.2)
8
Table 1. Inspection items and details
Inspection item Inspection interval Inspection detail
Visual inspection Semiannual Loosened lock lever of the assembled actuator
Valve and actuator damages
Fluid leakage from the gland/pipe connecting part
Operating status Semiannual Unstable open/close operation
Abnormal noise and vibration
Routine inspection Any time Abnormal noise and vibration
Unstable open/close operation
Valve hunting
Table 2. Troubleshooting
Problem Part to check Action
Valve does not operate smoothly /
valve stops halfway /
valve does not operate at all.
Conditions of the power applied and of the input
signal applied to the actuator.
Wiring condition/disconnected wires of the actuator.
Foreign substance jammed.
Check the power supply and the controller
connected to.
Check the wiring.
Remove foreign substance by manually
opening the valve.
Fluid leaks to the outside of the valve
when the valve is in fully closed
position.
Confirm the mounting procedure referring to the
section Assembling the valve Model VY5303A
with the actuator Model MY53X0A.
Dismount and remount the actuator according
to the correct mounting procedure.
The valve vibrates or produces an
abnormal noise.
Primary pressure condition.
Differential pressure condition.
Control stability.
Reset and adjust the valve inlet/outlet pressure.
Modify control parameter/PID setting of the
controller.
The auxiliary switch of the actuator
does not operate.
Auxiliary switch (cam switch) condition.
Wiring condition/disconnected wires of the actuator.
Redo the cam switch setting.
Check the wiring.
Connecting part between the valve
and actuator vibrates or produces an
abnormal noise.
Lock lever condition of the actuator.
Yoke damages.
Lock the lock lever.
Consult with our sales/service personnel.
Water flowing sound level is too high.

Consult with our sales/service personnel.
Actuator in operation produces an
abnormal noise.

Consult with our sales/service personnel.
Disposal
Dispose of this product as industrial waste in accordance with your local regulations.
Do not reuse all or any part of the product.