Azbil Actival VY51 J Series User manual

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Specifications/Instructions
ACTIVAL™
Motorized Two-Way Valve with Flanged-End Connection
for High Differential Pressure Application
(JIS 10K-FC200, -SCS13A)
General
ACTIVAL Model VY51XXJ for high differential pressure
application is a series of motorized two-way valves with
flanged-end connection. The valve and actuator are
integrated in a single unit.
The valve size ranges from DN15 to DN150. The actuator
has a reversible synchronous motor, which operates at a low
voltage of 24 V AC.
4 kinds of control signals are available to operate ACTIVAL.
1. Built-in 135 Ωfeedback potentiometer:
Provides proportional control in combination with a DDC
controller, including Infilex™GC (Model WY5111).
2. Nominal 135 Ωresistance input:
Provides proportional control in combination with a
proportionally controlled electric controller, including
Neostat™(Model TY900XZ/TY9800).
3. 4-20 mA DC input:
Provides proportional control in combination with a direct
digital controller (DDC), including Infilex™GC (Model
WY5111) and Model R35/R36.
4. 2-10 V DC input:
Provides proportional control in combination with a DDC
controller, including Infilex™AC (Model WY5117).
∗DDC: Direct Digital Control
JIS: Japanese Industrial Standards
Features
•Applicable to high differential pressure applications:
Water flow is controlled inside the valve to prevent over
pressure drop, leading to cavitation erosion resistance.
(See Fig. 1.)
•Compact and lightweight:
Rotary motor actualizes small body and light weight.
•Valve and actuator integrated in a single unit:
Pre-assembled body requires no adjustment.
•A variety of control signals available:
- Nominal 135 Ωfeedback potentiometer
- Nominal 135 Ωresistance input
- 4-20 mA DC input
- 2-10 V DC input
•Valve applicable to high differential pressure, high Cv
value, wide rangeability, and low leakage
•Durable actuator with low power consumption
•Modified linear flow characteristics
•2-10 V DC output (for position feedback) available with
4-20 mA DC input type and 2-10 V DC input type
IMPORTANT:
To control ACTIVAL with a third-party controller,
please consult with Azbil Corporation’s sales
personnel.

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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.
WARNING
•This product weighs 18 kg or over (depending on the models). To prevent hazardous accident and severe injury,
move or carry the product with enough manpower or using a vehicle.
•DN100 to DN150 model valve is wrapped in a buffer material. Do not remove the buffer material before
installation. The valve without buffer material can cause severe injury or can get damaged if falling.
•Do not disassemble the product. Disassembly may result in electrical shock or equipment damage.
CAUTION
•Installation and wiring must be performed by qualified personnel in accordance with all applicable safety
standards.
•Disconnect power from ACTIVAL before performing any wiring or maintenance to prevent equipment damage.
•All wiring must comply with local codes of indoor wiring and electric installation rules.
•Use crimp terminal lugs with insulation for electric wires to be connected to the screw terminals.
•Make sure all the wires are tightly connected to the screw terminals. Loose connection may cause fire or heat
generation.
•Install the ACTIVAL in the position as specified in this manual. Excessively tight connection of the valve to a pipe
and improper installation position may damage the valve.
•Do not install the ACTIVAL in a location close to a steam coil or a hot-water coil. High temperature radiation may
result in an actuator malfunction.
•After installation, make sure no fluid leaks from the connecting parts of valve and pipes. Incorrect piping may
cause fluid leakage.

•Do not allow any foreign substance inside the piping. Flush the piping so that no foreign substance remains.
Attach a strainer (with 40 or more meshes) in a pipe on the inflow side of the ACTIVAL to prevent equipment
damage.
•This product must be operated within its rated operating ranges specified in this manual. Failure to comply will
cause equipment damage.
•This product must be operated under the operating conditions (power, temperature, humidity, vibration, shock,
installation position, atmospheric condition, etc) specified in this manual to prevent equipment damage.
•Avoid using the product (actuator, valve, and other components) in a corrosive gas including oxide gas and
explosive gas.
•Operate the ACTIVAL within the service life, and avoid application that keeps product operating cycle excessively
frequent so as not to shorten its service life.
•Do not leave the controlled fluid frozen to prevent equipment damage or fluid leakage.
•Do not put heavy load on the actuator.
•Avoid touching the installed ACTIVAL (valve body, yoke, joint). When being used to control hot water, it reaches
high temperature and may cause burn injury.
•Dispose of this product as an industrial waste in accordance with your local regulations. Do not reuse all or part of
this product.

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Mechanism of Cavitation Erosion Resistance
Figure 1. Mechanism of cavitation erosion resistance
Model Numbers
Model VY51XXJ0XXX is the model for the valve and actuator integrated into a single unit.
The model number label is attached to the yoke. The control signal is indicated on the actuator label and on the wiring diagram
as follows:
•Nominal 135 Ωfeedback potentiometer:
•Nominal 135 Ωresistance input:
•4-20 mA DC input:
•2-10 V DC input:
Actuator/valve Actuator Valve
Base
model
number Control
signal
Rating/
material Type ⎯Nominal size / Cv
Description
VY51 Motorized two-way valve with flanged-end connection
1 Nominal 135 Ωfeedback potentiometer
2 Nominal 135 Ωresistance input
3 4 mA DC to 20 mA DC input with 2 V DC to 10 V DC feedback output
4 2 V DC to 10 V DC input with 2 V DC to 10 V DC feedback output
3 JIS 10K / FC200 [for chilled/hot water]
with cavitation erosion resistant mechanism
4 JIS 10K / SCS13A [for chilled/hot water]
with cavitation erosion resistant mechanism
J
IEC IP54 protected and standard torque type actuator with terminal block
for DN15 to DN125 valve
IEC IP54 protected and high torque type actuator with terminal block
for DN150 valve
0 ⎯
012 DN15 (1/2”) / 2.5 in Cv value
020 DN25 (1”) / 6.8 in Cv value
021 DN25 (1”) / 10 in Cv value
040 DN40 (11/2”) / 16 in Cv value
041 DN40 (11/2”) / 25 in Cv value
050 DN50 (2”) / 40 in Cv value
060 DN65 (21/2”) / 65 in Cv value
080 DN80 (3”) / 95 in Cv value
101 DN100 (4”) / 180 in Cv value (only for Model VY51X3)
121 DN125 (5”) / 234 in Cv value (only for Model VY51X3)
151 DN150 (6”) / 350 in Cv value (only for Model VY51X3)
F.B. Pot
135 Ω
4-20 mA
2-10 V
Cone
∗
Note:
Fig.1 shows the image of DN15 to DN80 valve model.
DN100 to DN150 valve also has the cone as well.
Refer to the section Dimensions for the image o
f
DN100 to DN150 valve model.

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Specifications
For weight, refer to the table shown in the section Dimensions.
Valve specifications
Item Specification
Model Two-way valve with flanged-end connection
Body pressure rating JIS 10K (Max. pressure: 1.0 MPa)
Model number Nominal size Cv Close-off ratings
VY51XXJ0012 DN15 (1/2”) 2.5 1.0 MPa
VY51XXJ0020 DN25 (1”) 6.8 1.0 MPa
VY51XXJ0021 DN25 (1”) 10 1.0 MPa
VY51XXJ0040 DN40 (11/2”) 16 1.0 MPa
VY51XXJ0041 DN40 (11/2”) 25 1.0 MPa
VY51XXJ0050 DN50 (2”) 40 1.0 MPa
VY51XXJ0060 DN65 (21/2”) 65 1.0 MPa
VY51XXJ0080 DN80 (3”) 95 1.0 MPa
VY51X3J0101 DN100 (4”) 180 0.5 MPa
VY51X3J0121 DN125 (5”) 234 0.5 MPa
Size, Cv, close-off rating
VY51X3J0151 DN150 (6”) 350 0.5 MPa
Body Model VY51X3J: Cast iron (JIS FC200)
Model VY51X4J: Stainless steel (JIS SCS13A)
Plug, stem Stainless steel (JIS SCS13A)
Cone Model VY51XXJ00XX (DN15 to DN80): Stainless steel (JIS SCS13A)
Model VY51X3J01X1 (DN100 to DN150): Cast iron (JIS SCPH2)
Seat ring Heat-resistant PTFE
Gland packing Inorganic fiber
Materials
Gasket Non-asbestos joint sheet
End connection Flanged-end connection (JIS 10K)
Model VY51X3J (JIS FC200): Flat face (FF)
Model VY51X4J (JIS SCS13A): Large raised face (RF)
Allowable fluid temperature Model VY51XXJ00XX (DN15 to DN80): 0 °C to 175 °C (non-condensing)
Model VY51X3J01X1 (DN100 to DN150): 0 °C to 130 °C (non-condensing)
Flow characteristics Modified linear
Rangeability 100 : 1
Seat leakage 0.01 % or less of rated Cv value (0.0006 Cv or less for DN15 models)
Paint Body of Model VY51X3J (JIS FC200): Gray (equivalent to Munsell 5B 4/1)
Body of Model VY51X4J (JIS SCS13A): Unpainted
Applicable fluid Chilled/hot water, high-temperature water, brine (ethylene glycol solutions, 50 % max.)
Installation orientation Installable in any position ranging from upright to sideways (90°tilted)
*Always install in upright position outdoors.
Actuator to be combined Integrated with the valve
Actuator specifications (1/2)
Item Specification
Power supply 24 V AC ±15 %, 50 Hz/60 Hz
Standard torque type DN100 to DN125Applicable valve size
High torque type DN150
Standard torque type Model VY511: 7 VA
Model VY512/VY513/VY514: 8 VA
Power consumption
High torque type Model VY511: 9 VA
Model VY512/VY513/VY514: 10 VA
Timing 63 ±5 sec (50 Hz) / 53 ±5 sec (60 Hz)
Control signal input Nominal 135 Ωfeedback potentiometer
(Total resistance: Nominal 135 Ω/ Max. applied voltage: 5 V DC)
Nominal 135 Ωresistance input
4 mA DC to 20 mA DC input (Input impedance: 100 Ω)
2 V DC to 10 V DC input (Input impedance: 150 kΩor higher)
Feedback signal output (only with 4-20 mA DC
input and 2-10 V DC input)
Range: 2 V DC (0 % position) to 10 V DC (100 % position)
Max. load resistance: 10 kΩor higher (Max. 1 mA)

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(2/2)
Item Specification
Rated operating condition Transport/storage condition*2
-20 °C to 50 °C
(Fluid temperature 0 °C to 150 °C)
Ambient
temperature*1-20 °C to 40 °C
(Fluid temperature 150 °C to 175 °C)
-20 °C to 70 °C
Ambient humidity 5 %RH to 95 %RH
Vibration 4.9 m/s2(10 Hz to 150 Hz) 19.6 m/s2(10 Hz to 150 Hz)
Environmental conditions
Notes:
∗1 Do not allow the fluid to freeze.
∗2 The actuator shall be packed during transport.
Case Aluminum alloy casting
Top cover, terminal cover Plastic (polycarbonate resin) (Color: gray)
Materials
Yoke Steel plate
Case None
Surface finishing
Yoke Electro-galvanizing (Bright chromate finish)
Installation location Indoor / outdoor (Keep away from direct sunlight.)
Installation orientation Installable in any position ranging from upright to sideways (90°tilted).
(If being installed outdoors, the actuator must be installed in upright position.)
Valve position indication Pointer located at the bottom of the actuator shows the position by pointing at the value (0:
close to 100: open) of the scale on front, rear, and bottom sides.
Manual operation Available. Refer to the section Manually opening/closing the ACTIVAL.
Wire connection M3.5 screw terminal connection
Enclosure rating IEC IP54 (dust-proof and splash-proof)
Insulation resistance Between terminal and case: 5 MΩor higher at 500 V DC
Dielectric strength Between terminal and case: 500 V AC/min with 5 mA or less leakage current
Installation orientation Installable in any position ranging from upright to sideways (90°tilted)
*Always install in upright position outdoors.
Preset position for shipment 100 % (fully open)
Options
For options, separate order is required.
Item Specification
Seal connector
(Part No. 83104346-003)
Applicable wire size: φ7 mm to φ9 mm
(Seal connector is necessary for IEC IP54 protection)
Auxiliary switch*
(Part No.83165274-001)
Number of switches: 2 (SW A and SW B)
Max. applied voltage/current: 30 V DC / 3 A
Actuating position
(SW A): Adjustable between 0 % (fully closed) and 100 % (fully open)
(SW B):.Adjustable between 0 % (fully closed) and 100 % (fully open)
Auxiliary potentiometer*
(Part No. 83165275-001)
Number of potentiometer: 1
Total resistance: Nominal 1 kΩ
Actuating position: 0 % (fully closed) and 100 % (fully open)
Max. applied voltage: 5 V DC
∗Note:
Either the auxiliary switch or auxiliary potentiometer can be added, but not both.
CE Marking Conformity
This product complies with the following Electromagnetic Compatibility (EMC).
EMC : EN61000-6-2, EN55011 Class A
Fluid temperature (°C)
A
mbient temperature (°C)
50
40
30
0
-20 150 175100

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Flow direction
70 70
H
138
H1
L1
Lt
φ
C
φ
D
82 85
Min. 300
Min. 100*
(See Note.)
N
×
φ
h
∗
Note:
Leave a clearance of 300 mm if you require to open the tope cove
r
after the ACTIVAL is installed.
Dimensions and Maintenance Clearance
Model VY51X3J (JIS FC200 valve)
Valve size: DN15 to DN80
Valve size (DN) H H1L L1t φC φD φh N Weight (kg)
15 213 75 108 50 16 70 95 15 4 4.6
25 228 90 127 60 18 90 125 19 4 6.6
40 241 103 165 82.5 20 105 140 19 4 10
50 245 107 178 89 20 120 155 19 4 11.5
65 262 124 190 90 22 140 175 19 4 16
80 263 125 203 100 22 150 185 19 8 18.5
Figure 2. Dimensions and maintenance clearance (mm): Model VY51X3 (DN15 to DN80 valve model)
Valve size: DN100 to DN150
Valve size (DN) H H1L L1t φC φD φh N Weight (kg)
100 309.5 171.5 352 153 24 175 210 19 8 37
125 309.5 171.5 403 172 24 210 250 23 8 37
150 318 180 451 183 26 240 280 23 8 49
Figure 3. Dimensions and maintenance clearance (mm): Model VY51X3 (DN100 to DN150 valve model)
70 70
φC φD
H
138
H1
L1
L t
Flow direction
82 85
Min. 300 Min. 100* (See Note.)
N ×φh
∗
Note:
Leave a clearance of 300 mm if you require to open the tope cove
r
after the ACTIVAL is installed.

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Model VY51X4J (JIS SCS13A valve)
Valve size: DN15 to DN80
Valve size (DN) H H1L L1t φg φC φD φh N Weight (kg)
15 213 75 108 50 12 51 70 95 15 4 4.6
25 228 90 127 60 14 67 90 125 19 4 6.6
40 241 103 165 82.5 16 81 105 140 19 4 10
50 245 107 178 89 16 96 120 155 19 4 11.5
65 262 124 190 90 18 116 140 175 19 4 16
80 263 125 203 100 18 126 150 185 19 8 18.5
Figure 4. Dimensions and maintenance clearance (mm): Model VY51X4
Parts Identification
∗Note:
Fig.5 (above) shows the image of DN15 to DN80 valve model. Parts identification of DN100 to DN150 valve is the same. Refer to the
section Dimensions for the image of DN100 to DN150 valve model.
Figure 5. Parts identification
70 70
H
138
H1
φg φC φD
L1
L t
Flow direction
82 85
Min. 300 Min. 100* (See Note.)
N ×φh
∗
Note:
Leave a clearance of 300 mm if you require to open the tope
cover after the ACTIVAL is installed.
Top cover
Terminal cover
Knockout hole
Pointer
Joint
Yoke
Stem
Cone
: Heat insulation
A
ctuato
r
Valve bod
y
Gland
Bonnet
Seat ring
Plug

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Recommended Criteria to Prevent Cavitation Erosion
Cavitation erosion is likely to occur in the case that the pressure ratio XFcalculated by the following formula overreaches the
criterion value.
X
F=
X
F: Pressure ratio
P
1: Absolute pressure of valve inlet [kPa (abs)]
P
2: Absolute pressure of valve outlet [kPa (abs)]
Pv: Saturated vapor pressure of fluid* [kPa (abs)]
* Saturated vapor pressure of fluid varies depending on the fluid temperature.
Always keep the pressure ratio XF< 0.7 (criterion value).
If the pressure ratio does not meet this criterion, cavitation erosion may occur. This value is thus necessary to prevent cavitation
erosion. Note that cavitation itself may be generated even if the pressure ratio is kept below 0.7.
In addition to the pressure ratio, the flow velocity at the valve in 100 % position is another criterion for cavitation erosion.
Flow velocity [m/s] = 21.22 ×
Q = Flow rate [liter/min]
d = Valve size [DN (mm)]
Always keep the flow velocity < 7.0 m/s (criterion value) for chilled water and < 5.0 m/s (criterion value) for hot water.
If the flow velocity does not meet these criteria, cavitation erosion may occur.
P1- P2
P1- Pv
Q
d2

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Installation
Precautions for installation
CAUTION
•Disconnect power from ACTIVAL before performing any wiring or maintenance (installation) to prevent equipment
damage.
•Install the ACTIVAL in the position as specified in this manual. Excessively tight connection of the valve to a pipe
and improper installation position may damage the valve.
•After installation, make sure no fluid leaks from the connecting parts of valve and pipes. Incorrect piping may
cause fluid leakage.
•Do not allow any foreign substance inside the piping. Flush the piping so that no foreign substance remains.
Foreign substance can damage the valve.
•ACTIVAL Model VY51XXJ0 is the valve and actuator integrated into a single unit. Do not combine the valve with any other
actuator, or do not combine the actuator with any other valve.
•To remove foreign substances inside the pipes, install a strainer (with 40 or more meshes) 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.
•After installation, remove buffer material wrapped around the valve (DN100 to DN150 model).
Installation location
CAUTION
•Avoid using the ACTIVAL in an atmosphere containing oxidizing or explosive gas since it may corrode the actuator,
valve, or their components.
•The actuator may malfunction if being exposed to high temperature radiation. Do not install it near by steam coil or
hot water (high temperature) coil.
IMPORTANT:
•The covers might be corroded by some chemical and organic solvent/vapor. Do not clean the ACTIVAL using
such substances, or do not expose the ACTIVAL to such substances.
•
A
lthough the ACTIVAL can be used in high humidity environments (max. 95 %RH), do not immerse the
actuator in water.
•Although the ACTIVAL can also be used outdoors, be sure not to expose the ACTIVAL to direct sunlight.
•Install the ACTIVAL in a position allowing easy access for maintenance and inspection. Figs 2 to 4 show the minimum
clearance for maintenance and inspection. When installing the ACTIVAL 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 mount the ACTIVAL on a pipe where water hammer occurs, or where solid objects including slug may accumulate.
Mounting position
The ACTIVAL can be mounted in any position ranging from upright to sideways (90°tilted). The ACTIVAL should be installed
with its actuator vertically positioned above the valve body. (See Fig. 6.) However, the ACTIVAL must be installed always in
upright position outdoors.
Correct mounting Incorrect mounting
Figure 6. ACTIVAL mounting positions

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Piping
•Check that the model number of the product is what you ordered. The model number is shown on the label attached to the
yoke.
•Install a bypass pipe and gate valves on the inflow, outflow, and bypass sides. Also, install a strainer on the inflow side.
•Before activating the ACTIVAL, fully open (in 100 % position) the valve and flush the pipes at the maximum flow rate to
remove all the foreign substances. (Factory preset position: 100 %)
Heat insulation
Do not apply heat insulation to the actuator or to the yoke, as shows in Fig. 5. If the yoke and the actuator are covered
with insulation material, the pointer cannot be checked and may be distorted.
Factory preset position
The actuator shaft is positioned at 100 % (in fully open position) for shipment. The shaft is thus completely turned clockwise,
and the pointer points at ‘100’. (See Fig. 7.)
Figure 7. Preset pointer position for shipment
Manually opening/closing the ACTIVAL
IMPORTANT:
•Manually opening/closing the ACTIVAL with the power (24 V AC) applied may damage the actuator.
•To manually open/close the ACTIVAL, do not turn the joint beyond the fully open/closed mark.
•To manually open/close the ACTIVAL, slowly turn the joint. If shock is sent to the actuator, the actuator may
get damaged.
Disconnect the power from the ACTIVAL before manually operating the ACTIVAL. As shown in Fig. 8, from the front of the
ACTIVAL, hold the joint using a tool such as a wrench, and turn the joint slowly toward the set position.
Figure 8. Manual operation
Pointer
Joint
Hold the joint using
a wrench and turn.