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AB-6464 

1

 

 

ACTIVAL

   

Motorized Two-Way Valve 

with Flanged Connection 

Model VY51XXJ 

(JIS 10K-FC200, -SCS13A) 

General 

ACTIVAL Model VY51XXJ is a series of motorized 
two-way valves with flanged connections.  The valve 
and actuator are integrated in a single unit. 

The ACTIVAL is used to control chilled/hot water, hot 
water (in high temperature) or steam, and the body rating 
corresponds to JIS 10K (JIS: Japanese Industrial Stan-
dards).   
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 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 proportionally controlled electric controller.     
4-20 mA DC and 2-10 V DC inputs provide proportional 
control in combination 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 for water or steam 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 

Summary of Contents for ACTIVAL VY51XXJ

Page 1: ...n combination with a proportionally controlled electronic controller The nominal resistance 135 input provides proportional control in combination with a proportionally controlled electric controller...

Page 2: ...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...

Page 3: ...teel JIS SCS13A for large raised face RF type Plug and stem Stainless steel equivalent to JIS SCS Seat ring Heat resistant PTFE Gland packing Inorganic fiber Gasket Non asbestos joint sheet Piping con...

Page 4: ...Cover 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 s...

Page 5: ...ctuator label and the wiring diagram label as follows Nominal 135 feedback potentiometer Nominal 135 resistance input 4 mA DC to 20 mA DC input 2 V DC to 10 V DC input Actuator valve Actuator Valve Ba...

Page 6: ...12 15 4 4 6 25 127 60 229 90 125 90 67 14 19 4 6 6 40 165 82 5 242 103 140 105 81 16 19 4 10 0 50 178 89 246 107 155 120 96 16 19 4 11 5 65 190 90 267 129 175 140 116 18 19 4 16 80 203 100 268 130 185...

Page 7: ...nspection Figs 1 and 2 show the minimum clearance for maintenance and inspection When installing the ACTIVAL in a ceiling space place a drain pan under the valve 3 Install a bypass pipe and gate valve...

Page 8: ...ully 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...

Page 9: ...ing of 4 20 mA DC input and 2 10 V DC input refer to Figs 12 to 14 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 p...

Page 10: ...cted inside of the actuator Figure 13 Wiring terminal diagram Model VY514XJ00XX 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 VY511...

Page 11: ...esistance 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 VY513XJ 4 20 mA DC input with 2 10...

Page 12: ...nnection 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 posit...

Page 13: ...e 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 Tigh...

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Page 16: ...Specifications are subject to change without notice Building Systems Company http www yamatake com Rev 2 0 Oct 2005 AB 6464 0 5H H W00 J AI 6464 Rev 1 0 Printed in Japan...

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