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12

12

-6

Air Operated V

alve/Contr

ol V

alve

Air Operated Valve/Control Valve

  

 

Step

3

Guidelines for Installing Air Operated Valve

Warning and caution for installation

Piping example

Speed 

controller

Pressure

gauge

Strainer

(60 mesh)

Stop 

valve V

1

PD-3 Air 

operated valve

Stop 

valve V

2

Pressure 

gauge

Pressure 

gauge

Stop 

valve V

3

3/2 way solenoid 

valve DD-37

PRV with filter 

GD-37

Air motive pressure

Bypass

Union

Union

Union

1.  Before connecting the product to piping, remove foreign substances and scales inside the piping. Note that 

the seal material must not flow into the inside of the product.

    * Contamination of foreign substances can cause valve seat leakage and malfunction.

2.  When installation, check the direction of the product so that the fluid flowing and the arrow marked on the 

product are in the same direction.

3.  As shown in the above figure, it is recommended that stop valves, strainers, pressure gauges and bypass 

line to be installed to the piping. For screwed valve, a union joint is recommended to install for easy 
maintenance and inspection.

4.  Make sure to install a strainer with the mesh size 80-100mesh at the inlet side of the product.
5.  Avoid over-tightening of screw and excessive stress imposed from the piping in order to prevent malfunction 

due to the distortion of the body.

6.  Secure a space required for disassembly or removal of the product at the time of maintenance and 

inspection.

<PD-1, 2>

· Installation posture

Install the air operated valve vertically (the air 

pressure inlet port must be faced upward).

Any direction is possible.

<PD-3>

WRONG

O.K.

WRONG

WRONG

O.K.

O.K.

O.K.

O.K.

Содержание PD-1

Страница 1: ...12 1 Air Operated Valve Control Valve 12...

Страница 2: ...ight products depending on the intended of uses Confirm the additional details on the product page Step 2 Sizing Please confirm the essential Cv value on the sizing data P 5 or Please confirm the esse...

Страница 3: ...ntrol by a combination of controller Control on off of the fluid line for explosion proof area that cannot use electricity What is Air Operated Valve What is Control Valve Application Application Best...

Страница 4: ...50A Flanged type 9 PD 3 Piston type Steam Air Water Oil Equivalent to SCS14A 0 2 2 1 200 C JIS Rc 15 50A Screwed type 11 Model Type Fluid Material Working Press MPa Max Temp C Connection Size Feature...

Страница 5: ...Max gas flow rate m3 h standard condition G Specific gravity relative to air for gas or relative to water for liquid t Fluid temperature C V Max liquid flow rate m3 h Cv Cv value of each nominal size...

Страница 6: ...lation check the direction of the product so that the fluid flowing and the arrow marked on the product are in the same direction 3 As shown in the above figure it is recommended that stop valves stra...

Страница 7: ...der to prevent malfunction due to the distortion of the body 6 Recommend the upright installing position for the control valve top drive unit 7 Secure a space required for disassembly or removal of th...

Страница 8: ...close 0 Pressure Maximum Valve operation valve opening Condition of fluid Signals DC 20 mA Fully open 100 Water level Quick increase Increase signal Open Water level Slow increase 4 mA Fully close 0...

Страница 9: ...del PD 1 PD 2 Application Steam Air Cold and hot water Other non dangerous fluids Working pressure 0 1 0 MPa Max temperature 180 C Operation Air to open Pilot pressure 0 2 0 25 MPa Material Body Bronz...

Страница 10: ...eights kg PD 1 PD 2 Nominal size d L H H1 Cv value Weight 15A Rc 1 2 90 210 50 5 4 20A Rc 3 4 100 221 56 7 4 4 25A Rc 1 110 221 56 11 4 7 Nominal size L H H1 A Cv value Weight 15A 120 210 50 140 5 5 9...

Страница 11: ...luids 600 cSt or less Nominal size 15 50A Working pressure 15A 0 2 2 MPa 1 20A 0 1 3 MPa 25A 0 0 9 MPa 25A 0 2 2 MPa 1 32A 0 1 2 MPa 40A 0 1 0 MPa 50A 0 0 75 MPa Pilot pressure 15A 0 35 1 0 MPa 20A 0...

Страница 12: ...packing V PTFE Diaphragm EPDM Accessories Electro pneumatic positioner 4 20 mA DC Air regulator CT 1 1 CT 1 offers the standard type electro pneumatic positioner and the air regulator as accessories a...

Страница 13: ...n preventive structure with high tolerance for vibration Quick and accurate response Good efficiency with small air consumption Easy zero span adjustment LCD monitor shows positioner s condition Excel...

Страница 14: ...lapping with mixed sand 3 Packing is consumable supply If getting old replace with new one 4 Conduct inspection for spring buckling and stem bending etc Pilot pressure is not supplied Check air supply...

Страница 15: ...finished Actuator set cannot be removed when pilot pressure is not supplied to pilot port Also it is very dangerous to stop pilot pressure during supply at work because actuator set files out from bod...

Страница 16: ...Leakage occurs between lower diaphragm Replace actuator case and diaphragm rod Failure occurs in accessory positioner or Inspect or replace positioner or regulator regulator Failure occurs in body pa...

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