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AB-6465 

1

 

 

ACTIVAL

TM

   

Motorized Two-Way Valve 

with Flanged Connection 

Model VY51X2J 

(JIS 20K-FCD450) 

General 

ACTIVAL Model VY51X2J is a series of motorized 
two-way valves with flanged connections.  The valve 
and actuator are integrated in a single unit. 

The valve body can be used for the control of chilled/hot 
water or hot water (in high temperature), and the body 
rating corresponds to JIS 20K (JIS: Japanese Industrial 
Standards).   
The actuator has a reversible synchronous motor, which 
operates at a low voltage of 24 V AC. 

5 kinds of control signals are available to operate the 
ACTIVAL.    The built-in feedback potentiometer provides 
proportional control in combination with a proportionally 
controlled electronic controller.  The nominal resistance 
135 

 input provides proportional control in combination 

with a proportional electric controller.  4-20 mA DC and 
2-10 V DC inputs provide proportional control in combi-
nation with a direct digital controller (DDC). 

 

 

Features 

  Compact and lightweight. 

  Valve and actuator integrated in a single unit. 

  A variety of control signals available: 

  - Nominal 135 

 feedback potentiometer 

  - Nominal 135 

 resistance input 

  - 4-20 mA DC input 
  - 2-10 V DC input 

  Valve with high differential pressure, large Cv values, 

high rangeability and low leakage. 

 Durable design. 

  Low power consumption. 

  Equal percentage 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. 
 

 

 

Specifications/Instructions 

Содержание ACTIVAL VY51X2J

Страница 1: ...ional control in combination with a proportionally controlled electronic controller The nominal resistance 135 Ω input provides proportional control in combination with a proportional electric controller 4 20 mA DC and 2 10 V DC inputs provide proportional control in combi nation with a direct digital controller DDC Features Compact and lightweight Valve and actuator integrated in a single unit A ...

Страница 2: ...iping and improper installation position may cause equipment damages Flush the piping so that no foreign substance remains Attach a strainer at upstream side of the piping to prevent equipment damages After the piping installation make sure no fluid leaks from the connecting parts Do not install the product in a location adjacent to a steam coil or a hot water coil High temperature ra diation may ...

Страница 3: ...g stem Stainless steel equivalent to JIS SCS Seat ring Heat resistant PTFE Gland packing Inorganic fiber Gasket Non asbestos joint sheet Piping connections JIS 20K flanged connection Large raised face RF Allowable fluid temperature 0 C to 175 C Flow characteristics Equal percentage Rangeability 50 1 Seat leakage 0 01 or less of rated Cv value 0 0006 Cv or less for DN15 model Paint of body Gray equ...

Страница 4: ...over Plastic polycarbonate resin color gray Yoke Steel plate Surface finishing Case None Yoke Electro galvanizing bright chromate finish Installation locations Indoor Outdoor keep away from direct sunlight Installation orientation Installable in any position ranging from upright to sideways If being installed outdoors it must be installed in upright position Valve position indication Pointer locat...

Страница 5: ... numbers are applicable to the ACTIVAL Model VY51X2J JIS 20K series A model number label is attached to the yoke The control signal type is indicated on the actuator label and the wiring diagram label as follows Nominal 135 Ω feedback potentiometer Nominal 135 Ω resistance input 4 mA DC to 20 mA DC input 2 V DC to 10 V DC input Actuator Valve Actuator Valve Base model number Control signal Rating ...

Страница 6: ...8 12 8 65 241 120 5 267 129 175 140 116 20 19 8 19 80 283 141 5 268 130 200 160 132 22 23 8 23 5 Parts Identification Figure 2 Parts identification ǾD Flow direction t L L1 H1 H 138 70 70 ǾC Ǿg 82 Min 300 Min 100 㧖1 When opening the top cover leave a space at least 300 mm wide N Ǿh 㧖1 85 Plug Pointer Knockout hole Top cover Actuator Yoke Joint Gland nut Stem Seat ring O ring Packing Spring Valve b...

Страница 7: ... a ceiling space place a drain pan under the valve 3 Install a bypass pipe and gate valves on the inflow outflow and bypass sides Also install a strainer on the inflow side When the ACTIVAL is used in steam applications a strainer with 80 or more meshes is recommended 4 Do not apply heat insulation to the actuator and the yoke Apply heat insulation only to the area boxed with dotted lines shown in...

Страница 8: ... fully open position to the piping Step 1 in Fig 6 3 Remove the screws connecting the yoke and the valve body Step 2 in Fig 6 4 Change the direction of the yoke to the desired direction The actuator can be horizontally rotated every 90 to fit into the valve mounting position 0 90 180 270 from the factory preset position Step 3 in Fig 6 5 A thermal insulation sheet is inserted between the yoke and ...

Страница 9: ...ing of 4 20 mA DC input and 2 10 V DC input refer to Figs 10 to 13 and make sure the polarity of power supply and 2 10 V DC output Incorrect wiring may result in PCB printed circuit board burnout To prevent equipment damage cover the actuator except during wiring work Wiring precautions 1 Do not apply 24 V AC to the terminals 4 5 and 6 Max applicable voltage 5 V DC 2 To lead the wires into the act...

Страница 10: ...ted inside of the actuator Figure 13 Wiring terminal diagram Model VY5142J00XX 2 10 V DC input with 2 10 V DC output type Note The terminals 2 5 and 7 are connected inside of the actuator Model VY5112J00XX Figure 10 Wiring terminal diagram Model VY5112J00XX Nominal 135 Ω feedback potentiometer type Model VY5122J00XX Figure 11 Wiring terminal diagram Model VY5122J00XX Nominal 135 Ω resistance input...

Страница 11: ...135 Ω resistance input B R T1 T2 Neostat Model TY900XZ Transformer Power supply W B R Connection with Model R35TC0 Model R36TC0 Power supply Model R35TC0 Model R36TC0 Model VY5132J 4 20 mA DC input with 2 10 V DC output Transformer 13 14 1 4 5 2 T1 T2 6 7 Position indicator Note The terminals 2 5 and 7 are connected inside of the actuator Connection with Infilex TM AC Power supply Infilex AC Model...

Страница 12: ...onnection of auxiliary switches OP1 OP2 OP3 OP4 OP5 OP6 Part No 83161792 001 Terminal block Auxiliary switch 1 Adjustable between 0 to 50 positions Auxiliary switch 2 Adjustable between 50 to 100 positions Connection of auxiliary potentiometer NC NO Common NC Common NO OP1 OP2 OP3 Close Open Part No 83161793 001 Terminal block Auxiliary potentiometer ...

Страница 13: ... Misaligned piping Tighten the flange bolts Replace the gasket Redo piping Fluid leaks from the gland part Loosened gland packing Tighten the gland nut Fluid leaks from the bonnet Loosened bolts Tighten the bolts 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 Loosened terminals Wiring condition disco...

Страница 14: ...14 AB 6465 ...

Страница 15: ...15 AB 6465 ...

Страница 16: ...ing Systems Company Tamachi Kiyota Building 4 3 4 Shibaura Minato ku Tokyo 108 0023 JAPAN http www yamatake com Rev 1 0 Jun 2005 AB 6465 0 5H H W00 J AI 6465 Rev 1 0 Specifications are subject to change without notice ...

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