Azbil ACTIVAL VY5303A Manuale utente

AB-6209

Specifications/Instructions

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)

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)

120

Min. 120

Tapered

pipe thread

(Rc)

M H Min. 400

AB-6209

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.

AB-6209

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

4. Ball

1. Bod

6. O-ring

100

0 25 50 75 100

B AB A AB

Cv (%)

Position (%)

AB-6209

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

AB-6209

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

oint surface

Port B

Port A

Joint surface

Heat insulation

material

Heat insulation

material

Joint

surface

Correct application Incorrect application

AB-6209

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.

ctuato

Model MY53X0A

Valve

Model VY5303A

Lock lever

Lever release button

Stem a

Indicator/

manual leve

Turn.

Press.

Locked position indication

Lock.

AB-6209

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.

B A

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)

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.

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