Azbil ACTIVAL VY5303B Series Bedienungsanleitung

AB-6209-U

Specifications/Instructions

ACTIVAL

Three-Way Ball Valve with Threaded-End Connection

General

ACTIVAL Model VY5303B is a three-way ball valve with

threaded-end connection (ASME B1.20.1). It proportionally

controls chilled/hot water for HVAC (heating, ventilation, and

air conditioning) applications.

Model VY5303B 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 VY5303B 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*.

Bronze valve body applicable to 230 psig**

Easy assembly with Model MY53X0A actuator using no

tool, and no adjustment required

Linear flow characteristic

* AHU: Air handling unit

** This product was designed and manufactured conforming to

the ISO (International Organization for Standardization, PN16).

Model Numbers

Base model

number Material Size/

CV Description

VY53 Three-way valve with

threaded-end connection

0 Bronze

3B00 Fixed

21 3/4” / 4 Cv

22 3/4” / 6.3 Cv

23 1” / 10 Cv

31 11/4” / 16 Cv

41 11/2” / 25 Cv

Dimensions and Maintenance Clearance

Model number

Dimension

DN NPT

(in) Unit L H E M

VY5303B0021 20 3/4 in 2.83 1.97 1.30 1.42

mm 72 50 33 36

VY5303B0022 20 3/4 in 2.83 1.97 1.30 1.42

mm 72 50 33 36

VY5303B0023 25 1 in 3.35 2.11 1.61 1.65

mm 85 53.5 41 42

VY5303B0031 32 1¼ in 3.88 2.70 1.97 1.97

mm 98.5 68.5 50 50

VY5303B0041 40 1½ in 4.27 2.83 2.20 2.05

mm 108.5 72 56 52

Figure 1. Dimensions and maintenance clearance

(MY53)

AB-6209-U

Safety Instructions

Please read instructions carefully and use the product as specified in this manual. Be sure to keep this manual nearby for quick

reference.

Usage Restrictions

This product is targeted for general air conditioning. Do not use this product in a situation where human life might be affected.

Also, do not install this product in an atmosphere containing explosive gas or flammable gas.

If this product is used in a clean room or a place where particularly high reliability or control accuracy is required, please contact

our 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 possible hazardous conditions caused by erroneous operation or erroneous use. The symbol inside I

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 Q graphically

indicates the prohibited action.

(For example, the sign on the left notifies that disassembly is prohibited.)

Instructs users to carry out a specific obligatory action to prevent possible danger. The symbol inside d graphically

indicates the actual action to be carried out.

(For example, the sign on the left indicates general instructions.)

CAUTION

Install and use this product under the operating conditions (for temperature, humidity, power, vibration, shock,

mounting direction, atmosphere, etc.) listed in the specifications. Failure to do so might cause fire or device failure.

Use the product within its lifespan and avoid instrumentations that keep the product to operate excessively.

Continued use beyond the lifespan might cause fire or device failure.

Keep the products in package for storage. Failure to do so might damage or stain the products.

Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.

For installation, do not mount the valve in an improper position or overtighten the threaded connections.

Doing so might damage the product.

After installation, make sure no fluid leaks from the valve-pipe connections.

Incorrect installation might cause fluid leakage.



Install the product so that no foreign objects remains inside the pipes. Be sure to provide a strainer on the inflow side

of the piping. Flush the piping to remove the foreign objects after installation. Foreign objects inside the piping might

damage the product.

Do not excessively screw a pipe into the valve. Doing so might damage or deform the inside of the valve causing

leakage and malfunction.

Do not allow the fluid to freeze. Doing so might damage the valve body and cause fluid leakage.

Do not install the product nearby a steam coil, pressurized hot-water coil, or any high heat source. High temperature

radiation might cause malfunction of its actuator.

Do not use the product in an atmosphere corrosive to the actuator, valve, and their components. Doing so might

damage the product.

Do not disassemble the product. Doing so might cause device failure.

Do not carelessly touch this product when being used to control hot water. The product temperature is hot, and you

might get burned.

Dispose of the product as industrial waste in accordance with your local regulations. Do not reuse all or part of this

product.

AB-6209-U

IMPORTANT:

In case an Azbil Corporation product fails, you are required to provide your Equipment with safety design such

as fool-proof design*1, and fail-safe design*2(anti-flame propagation design, etc.), whereby preventing any

occurrence of physical injuries, fires, significant damage, and so forth. Furthermore, fault avoidance*3, fault

tolerance*4, or the like should be incorporated so that the said Equipment can satisfy the level of reliability and

safety required for your use.

*1. A design that is safe even if the user makes an error.

*2. A design that is safe even if the device fails.

*3. Avoidance of device failure by using highly reliable components, etc.

*4. The use of redundancy.

Specifications

Item Specification

Type Three-way ball valve with threaded-end connection (internal), proportional control

Applicable actuator Model MY53X0A

Pressure rating Max. working pressure: 230 psig

Valve size, Cv, Close-off rating Model number Nominal size Cv Close-off rating

Inch DN

VY5303B0021 3/4” 20 4.0 72 psig

VY5303B0022 3/4” 20 6.3 72 psig

VY5303B0023 1” 25 10 72 psig

VY5303B0031 11/4” 32 16 43 psig

VY5303B 041 11/2” 40 25 43 psig

Mounting orientation Horizontal or vertical mounting

Materials ①Body Cast bronze*

②Cap Cast bronze*

③Seat ring PTFE

④Ball Cast stainless steel

⑤Stem Stainless steel

⑥O-ring EPDM

End connection Internal threaded-end (ASME B1.20.1)

Applicable fluid Chilled/hot water, ethylene glycol solutions, 50 wt.% max.

Allowable fluid temperature 32 F to 212 F (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 VY5303B0021)

Mounting position On vertical / horizontal pipe

Weight

Actuator to combine is excluded.

VY5303B0021 1.5 lb (0.7 kg)

VY5303B0022 1.5 lb (0.7 kg)

VY5303B0023 2.0 lb (0.9 kg)

VY5303B0031 3.1 lb (1.4 kg)

VY5303B 041 3.7 lb (1.7 kg)

* JIS CAC406 (JIS: Japanese Industrial Standards)

Parts Identification Flow Characteristic

Figure3.Flow characteristic diagram

⑤

②

③

④

①

⑥

100

025 50 75 100

B AB A AB

Cv (%)

Position (%)

Figure 2. Parts identification

AB-6209-U

Installation

Precautions for installation

CAUTION

Install and use this product under the operating conditions (for temperature, humidity, power, vibration, shock,

mounting direction, atmosphere, etc.) listed in the specifications. Failure to do so might cause fire or device failure.

Installation and wiring must be performed by qualified personnel in accordance with all applicable safety standards.

Do not use the product in an atmosphere corrosive to the actuator, valve, and their components. Doing so might

damage the product.

For installation, do not mount the valve in an improper position or overtighten the threaded connections. Doing so

might damage the product.

Do not excessively screw a pipe into the valve. Doing so might damage or deform the inside of the valve causing

leakage and malfunction.

Install the product so that no foreign objects remains inside the pipes. Be sure to provide a strainer on the inflow side

of the piping. Flush the piping to remove the foreign objects after installation. Foreign objects inside the piping might

damage the product.

After installation, make sure no fluid leaks from the valve-pipe connections. Incorrect installation might cause fluid

leakage.

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

CAUTION

Do not install the product nearby a steam coil, pressurized hot-water coil, or any high heat source. High temperature

radiation might cause malfunction of its actuator.

Do not use the product in an atmosphere corrosive to the actuator, valve, and their components. Doing so might

damage the product.

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 ACTIVAL in a ceiling space,

provide an access hole within the 20” (50 cm) radius of the ACTIVAL. And, place a drain pan under the valve.

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 positions of the valve

Piping

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.

Correct examples Incorrect examples

AB-6209-U

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.

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 %)

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 3/4” 1” 11/4” 11/2”

Max. torque in-lbs

(Nm)

540

(60)

890

(100)

1070

(120)

1340

(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-U

Assembling the valve Model VY5303B 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 VY5303B

Lock lever

Lever release button

Stem a

Indicator/

manual leve

Turn.

Press.

Locked position indication

Lock.

AB-6209-U

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

B A

AB-6209-U

ACTIVAL is a trademark or registered trademark of Azbil Corporation in Japan or in other countries.

Rev. 6.0 Jun. 2016 AB-6209-U

Inspection and Troubleshooting

CAUTION

Do not carelessly touch this product when being used to control hot water. The product temperature is hot, and

you might get burned.

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.

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 VY5303B

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.

The assembled actuator in operation

produces an abnormal noise.



Consult with our sales/service personnel.

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