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AB-6465 

Manually Opening/Closing Valve 

 CAUTION 

 

 
 
 
 

 

  To manually open or close the valve, be 

sure to disconnect the ACTIVAL from the 
power supply (24 V AC).  If the valve is 
manually opened or closed with the power 
applied, the actuator may be damaged. 

  Never rotate the joint out of “0” to “100” 

range of the scale.   

Before manually opening or closing the ACTIVAL, make 
sure it is disconnected from the power supply.     
As shown in Fig. 7, hold the joint with a tool such as a 
hexagonal wrench, and turn the joint slowly toward the 
position to set up. 

Figure 7.  Manual open/close operation 

 

Auxiliary Switch / Auxiliary Potentiometer 
(Optional) 

 CAUTION 

 

  The auxiliary switch and the auxiliary poten-

tiometer are installed on site. (See Fig. 15.) 
Refer to the instructions attached to them.

 

 

  Do not open the top cover except when ad-

justing the auxiliary switch or auxiliary poten-
tiometer.

 

 

  Do not put a load on the cover.

 

 

Wiring 

 CAUTION 

 

  Disconnect power supply before performing 

any wiring.

 

 

 

 

  This product is designed for 24 V AC power 

supply voltage.    Do not apply mains power. 

  For correct wiring 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 actuator, cut out a knockout 

hole for a wiring port.    There are two knockout holes 
on the bilateral sides of the actuator terminal block: 
one 

φ

22 mm knockout hole on each side.  Select a 

knockout hole according to the conduit mounting 
direction and cut it out by lightly knocking with a 
screwdriver. (Refer to Fig. 8 ) 

Figure 8.    Knockout hole for wiring port 

3) Correctly connect the wiring to the terminals with M3.5 

screws, referring to the wiring terminal diagrams 
shown in Figs. 10 to 13 and the wiring examples 
shown in Fig. 14. (For the wiring of the auxiliary switch 
or the auxiliary potentiomenter, refer to Fig. 15.)   

4) 

When the ACTIVAL is used in a high-humidity 
environment or outdoors, use a water-proof connector. 

Figure 9.  Terminal cover removal 

Unscrew the three screws (M4 

×

 10) to remove the ter-

minal cover. (See Fig. 9.) 

 

 

 

1.Remove 

 these screws. 

2.Remove terminal cover. 

Summary of Contents for ACTIVAL VY51X2J

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 14: ...14 AB 6465 ...

Page 15: ...15 AB 6465 ...

Page 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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