Yoshitake PD-3 Bedienungsanleitung

■EPDT-310■

MODEL PD-3

AIR OPERATED VALVE

PRODUCT MANUAL

Thank you very much for choosing the Yoshitake’s product. To ensure the correct and safe use of the

product, please read this manual before use. This manual shall be kept with care for future references.

The symbols used in this manual have the following meanings.

Warning

This symbol indicates a potentially hazardous situation that, if not avoided,

could result in death or serious injury.

Caution

This symbol indicates a hazardous situation that, if not avoided, may result in

minor or moderate injury or may result in only property damage.

Table of Contents

1. Usage of the Product·················································· 1

2. Specifications···························································· 1

3. Dimensions and Weights············································· 2

4. Operation ······························································· 3

5. Installation ······························································ 4

5.1 Piping example ·················································· 4

5.2 Precaution for installation ···································4-5

6. Operating procedure ················································· 5

6.1 Warning and caution for operation ·························· 5

7. Maintenance ···························································· 6

7.1 Maintenance ······················································ 6

7.2 Troubleshooting·················································· 7

7.3 Exploded view····················································· 8

7.4 Disassembly and reassembly ····························· 9-10

-1-

■EPDT-310■

1. Usage of the Product

PD-3 is air operated ON-OFF valve for wide usage application.

2. Specifications

*1 When fluid is steam, maximum working pressure is 1.5 MPa.

*2 Available with normally open type (pressure to close).

●For the specification other than the above, please contact us.

Caution

Please confirm that the tag indication of the product corresponds with the

specifications of the ordered product model before use.

* If they are different, please contact us without using the product.

Model PD-3

Application Steam, air, cold and hot water, oil, other non-dangerous fluid

(600cSt or less)

Nominal size 15A to 50A

Working pressure

15A：0 to 2.2MPa *1 20A：0 to 1.3MPa

25A：0 to 0.9MPa 25A：0 to 2.2MPa *1

32A：0 to 1.2MPa 40A：0 to 1.0MPa

50A：0 to 0.75MPa

Pilot air pressure

15A：0.35 to 1.0MPa 20A：0.45 to 1.0MPa

25A：0.57 to 1.0MPa 25A：0.35 to 1.0MPa

32A：0.35 to 1.0MPa 40A：0.44 to 1.0MPa

50A：0.56 to 1.0MPa

Temperature

range -30 to 200℃(no freezing condition)

Ambient

temperature range -15 to 60℃

Material

Body Stainless steel

Valve disc PTFE

Bonnet Brass + chrome plating

Installation posture Any direction is possible.

Connection JIS Rc screwed

Operation Normally close (pressure to open)

Cv value 15A：4 20A：9.2 25A:17.4 32A：27.8 40A：40.6 50A：63.8

-2-

■EPDT-310■

3. Dimensions and Weights

No.

Parts name

1 Body

2 Packing case

3 Gasket

5 Valve disc

Bonnet

Circlip

Piston

Exterior lip seal

Spring

Position indicator

(mm)

Size Working

Press.

(MPa)

Pilot

Press.

(MPa) d L A H B D G Weight

（kg)

15A 0-2.2 0.35-1.0

Rc 1/2 65 135

130

34.5 62 G 1/8"

1.1

20A 0-1.3 0.45-1.0

Rc 3/4 75 140

135

34.5 62 G 1/8"

1.2

25A 0-0.9 0.57-1.0

Rc 1 90 150

140

34.5 62 G 1/8"

1.4

25A 0-2.2 0.35-1.0

Rc 1 90 190

185

55 96 G 1/4”

3.0

32A 0-1.2 0.35-1.0

Rc 1 1/4 110

205

200

55 96 G 1/4"

3.3

40A 0-1.0 0.44-1.0

Rc 1 1/2 120

210

205

55 96 G 1/4"

3.6

50A 0-0.75 0.56-1.0

Rc 2 150

225

215

55 96 G 1/4"

4.2

Fig.1

Position indicator

Actuator

Pilot port

-3-

■EPDT-310■

4. Operation

1. Closing operation (normal state)

When pilot pressure is not applied, valve disc [5] is closed by power of spring [26].

2. Opening operation

When pilot pressure is applied from pilot port, pressure is added to bottom part of piston

[23], and overcome load of spring [26] and push up piston [23] and open valve disc [5]. Also,

position indicator [27] connected to piston [23] is pushed up at the same time, then valve

opening can be checked from outside visually.

Pilot port

⑤

Fig.2

Fig.3

-4-

■EPDT-310■

5. Piping example

5．1 Piping example

5.2 Precaution for installation

Caution

1. Do not disassemble the product unless it is necessary.

* Failure to follow this notice may prevent the product from functioning properly.

2. Before installing the product in piping, be sure to remove foreign substance and scale from the piping.

* Failure to follow this notice may prevent the product from achieving its intended performance and lead

to malfunction due to the ingress of foreign substances and scale into the product.

3. Be sure to install a strainer (60 mesh or equivalent) at the inlet side of the product.

* Failure to follow this notice may prevent the product from achieving its intended performance and lead

to malfunction due to the ingress of foreign substances and scale into the product.

4. Install stop valve and bypass piping for the product.

* Failure to follow this notice may prevent the product from maintenance and inspection.

5. 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.

* Failure to follow this notice may prevent the product from functioning properly.

6. Connect the product to piping securely so that fluid cannot leak.

* Insufficient connection may lead to leakage by vibration.Also, high temperature fluid can cause scald.

* If using seal agent for piping to connection part, prevent it from commingling into the product. Seal

agent commingles into the product may hamper proper operation.

7. If there is possibility of freezing, take measures to prevent fluid from freezing.

* Failure to follow this notice may damage the product due to freezing of the product.

8. Install pipes so that excessive load, torque or vibration cannot be applied to the product.

* Failure to follow this notice may lead to malfunction or drastically shortened service life of the product.

9. When connecting the product to piping, connect it by grasping hexagonal part of inlet and outlet sides

of the body with tool. Do not screw the product into piping with grasping the actuator part.

10. Be sure to secure enough space required for maintenance.

* Failure to follow this notice prevents required operation at the time of maintenance.

11. Install pilot pressure piping and valve to operate the product so that excessive load, torque or vibration

cannot be applied to the product.

* Failure to follow this notice may lead to malfunction or drastically shortened service life of the product.

12. Before driving piping equipment, check if the product functions properly.

13. For installation posture, any direction is possible.

14. Compressed air to supply to actuator should be clean and dry air without commingling of water, oil, or

foreign substances.

* Commingling of foreign substances leads to malfunction of the product.

Fig. 4

-5-

■EPDT-310■

Minimum maintenance space for disassembly

6. Operating procedure

6.1 Warning and caution for operation

Warning

1. Do not touch the product with bare hands in case of high temperature fluid.

* Failure to follow this notice may scald your skin.

2. Before letting fluid flow, be sure to check that there is no danger if fluid flows to end of piping, the

product is connected firmly, and pilot pressure piping is connected firmly to pilot port.

* Failure to follow this notice may contaminate the surroundings. Also, fluid with high temperature may

scald your skin.

Caution

1. Before leading fluid into the product, close the stop valves at the inlet and outlet of the product and

remove foreign substances and scale from the piping completely by using a bypass line.

* Failure to follow this notice may prevent the product from functioning properly due to the ingress of

foreign substances and scale into the product. Also, foreign substance stuck inside the product leads

to malfunction.

2. Open each stop valve in the piping to avoid water hammer or condensate obstruction when leading

fluid to the product.

* Rapid opening of stop valve may break the product or peripheral equipment by water hammer or

condensate obstruction.

3. If fluid leakage from piping connection part of the product is found after leading fluid to the product,

stop the fluid immediately and discharge innerpressure of theproduct, piping and peripheral equipment,

and retighten piping connection (for fluid with high temperature, after cooling the product).

* Failure to follow this notice may result in making the surroundings dirty. Also, fluid with high

temperature may scald your skin.

(mm)

Size H1L2

15A 200 200

20A 210 210

25A 220 220

32A 280 280

40A 290 290

50A 310 310

Fig. 5

-6-

■EPDT-310■

7. Maintenance

Most of problems with the product are caused by foreign substances and scale in the piping.

A phenomenon similar to valve failure could occur due to the failure of the pressure gauge,

leakage or insufficient tightening of the stop valve in the by-pass line, clogging of the strainer,

and other causes. Check the above possible causes and take a proper remedy and preventive

measures specified in “7.2 Troubleshooting”.

7.1 Warning and inspection for maintenance and inspection

Warning

1. Conduct periodic inspection to maintain functions and performance of the product.

* General users should ask experts (staff of facility management/engineering companies, etc.) to

perform periodic inspection.

2. When conducting disassembly or inspection, be sure to discharge inner pressure of the product, piping

and equipment, and cool down the body of the product until it can be touched by bare hands. Do not

touch it with bare hand directly till it is cooled completely.

* Failure to follow this notice may result in scalds or injury due to the residual pressure. Also, it may

make the surroundings dirty.

Caution

1. Completely discharge the fluid inside of the product and piping before leaving the product not operated

for a long time or at the time of regular inspection.

* Failure to follow this notice may cause malfunction due to occurrence of foreign substance or scale

inside of the piping.

2. After leaving the product not operated for a long period, perform periodic inspection before start-up of

operation.

7.1.1 Consumable parts and replacement term

For consumable parts, service life differs according to frequency of usage or usage

condition. Rough indication of replacement term is as follows (parts number in the chart

indicates number in “7.3 Fig.3 Exploded view”):

Parts name Parts number Replacement term

Gasket 3 3 years

7.1.2 Regular inspection items and period to maintain function and performance

Regular inspection items and period are as follows:

Inspection items Inspection period

Leakage check (visual check) with

conducting open and closing operation

More than once a year

Leakage check (visual check) from leak

detection port (see Fig.6) More than once a year

Leakage check (visual check) from

position indicator (see Fig.1) More than once a year

-7-

■EPDT-310■

7．2 Troubleshooting (see “3. Dimensions and Weights”, “7.3 Exploded view” and “7.4

Disassembly and reassembly”.)

Trouble Cause Remedy

1. Fluid does not

flow (Valve disc is

kept closing and

does not open).

Pilot pressure is not supplied. Check air supply piping.

Pilot pressure is low. Apply pilot pressure as specified in “2.

Specification”.

Sealing defect of outer lip seal [24]. Replace the actuator set.

2. Fluid keeps

flowing, does not

stop. (Valve disc is

kept opening and

does not close.)

Or, there is valve

leakage.

Leakage from stop valve on bypass

piping.

Close stop valve. Or, leakage still

occurs even if closing stop valve,

replace stop valve.

Pilot pressure exists inside the bonnet.

Remove pilot pressure from pilot port.

Foreign substance is stuck on the seat

part (see Fig.7) between valve disc [5]

and body [1].

Clean the seat part (see Fig.7)

between valve disc [5] and body [1].

There is damage on the seat part (see

Fig.7) between valve disc [5] and body

[1].

If there is damage on valve disc [5],

replace the actuator set. If there is

damage on the seat part (see Fig.7) of

body [1], replace the product.

Defect of spring [26] inside actuator. Replace the actuator set.

3. Fluid leaks

from the

connection part of

packing case [2]

and body [1].

Leakage from gasket due to loose of

packing case [2]. Tighten packing case [2] until the

specified tightening torque.

Leakage from gasket [3] due to

deterioration. Replace gasket [3].

4. Fluid leaks

from the leak

detection port (see

Fig. 6). Leakage due to deterioration of O ring

or packing, etc. inside the actuator set.

Replace the actuator set.

5. Pilot pressure

leaks from position

indicator part.

Leak detection port

Fig. 6

-8-

■EPDT-310■

7．3 Exploded view

Fig. 7 Exploded view

The parts names shown in

are available as consumable supply.

Pilot port

Position indicator

Actuator set

Circlip

Packing

case

Valve

disc

③

Gasket

Seat part

① Body

-9-

■EPDT-310■

7.4 Disassembly and reassembly

7.4.1 Disassembly

7.4.1.1 Warning before disassembly

Warning

1. Be sure not to remove circlip [22]. (See “3. Dimension and Weight.)

* Failure to follow this notice makes inner spring [26] fly out and result in injury.

2. To remove actuator set from body [1], supply pilot pressure to pilot port, and rise valve disc [5]. Then

loose and remove actuator set by grasping hexagonal part of packing case [2]. Also, be sure not to

stop pilot pressure during supply till the work is 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 flies out from body [1]

and result in injury.

3. Before disassembly, be sure to discharge the pressure inside of the product, piping and equipment

completely (after cooling down the product in case of high-temperature fluid). Also, do not touch it with

bare hands directly till it is cooled.

* Failure to follow this notice may make the surroundings dirty or result in injury or burns due to residual

pressure if inner pressure is not discharged completely from the product, piping and equipment.

7.4.1.2 Disassembly procedure

1. Adding pilot pressure through pilot port, check that valve disc is up by position indicator

[27].

2. Grasp and loose hexagonal part of packing case [2] with spanner, and remove actuator

set from body [1].

3. Remove gasket [3].

7.4.2 Reassembly

7.4.2.1 Warning and caution for reassembly after disassembly

Warning

1. To install actuator set on body [1], supply pilot pressure to pilot port, and rise valve disc [5] and then

tighten actuator set by grasping hexagonal part of packing case [2]. Also, be sure not to stop pilot

pressure during supply till the work is finished.

* Actuator set cannot be installed on body [1] when pilot pressure is not supplied to pilot port because

valve disc is down. Also, it is very dangerous to stop pilot pressure during supply at work because

actuator set flies out from body [1] and result in injury.

Caution

1. Check that there is no damage on valve disc [5] and seat part of body.

* Damage on valve disc or seat part of body leads to valve leakage. Also, replace gasket [3] with new

one. If not, it leads to outside leakage.

* For gasket, be sure to use gasket which Yoshitake prepares. If using other gasket, it may leads to

outside leakage.

2. For operation after reassembly, follow “6.1 Warning and caution for operation”.

Inhaltsverzeichnis

Andere Yoshitake Steuereinheit Handbücher

Yoshitake

Yoshitake GP-1200 Bedienungsanleitung

Yoshitake

Yoshitake GP-1000 Bedienungsanleitung

Yoshitake

Yoshitake TA-16 Series Bedienungsanleitung

Yoshitake

Yoshitake SCV-3 Bedienungsanleitung

Yoshitake

Yoshitake CF-60 Bedienungsanleitung

Yoshitake

Yoshitake TA-18ML Bedienungsanleitung

Yoshitake

Yoshitake CF-90 Bedienungsanleitung

Yoshitake

Yoshitake TA-16 Series Bedienungsanleitung

Yoshitake

Yoshitake SU-20H Bedienungsanleitung

Yoshitake

Yoshitake GP-27 Bedienungsanleitung

Yoshitake

Yoshitake GD-24 Bedienungsanleitung

Yoshitake

Yoshitake OB-3 Bedienungsanleitung

Yoshitake

Yoshitake GD-24GS Bedienungsanleitung

Yoshitake

Yoshitake GD-30 Bedienungsanleitung

Yoshitake

Yoshitake DP-100 Series Bedienungsanleitung

Yoshitake

Yoshitake GDK-2000 Bedienungsanleitung

Yoshitake

Yoshitake BLV-1 Bedienungsanleitung

Yoshitake

Yoshitake TA-22ML Bedienungsanleitung

Yoshitake

Yoshitake GD-200 Series Bedienungsanleitung

Yoshitake

Yoshitake GD-28S-NE Bedienungsanleitung

Yoshitake

Yoshitake DP-10 Series Bedienungsanleitung

Yoshitake

Yoshitake GP-2000 Bedienungsanleitung

Yoshitake

Yoshitake GD-26G Bedienungsanleitung

Yoshitake

Yoshitake MD-53 Bedienungsanleitung

Beliebte Steuereinheit Handbücher anderer Marken

Festo

Festo Compact Performance CP-FB6-E Stücklistenhandbuch

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Bedienungsanleitung

JS Automation

JS Automation MPC3034A Bedienungsanleitung

JAUDT

JAUDT SW GII 6406 Series Kurzanleitung

Spektrum

Spektrum Air Module System Bedienungsanleitung

BOC Edwards

BOC Edwards Q Series Bedienungsanleitung

KHADAS

KHADAS BT Magic Bedienungsanleitung

Etherma

Etherma eNEXHO-IL Bedienungsanleitung

PMFoundations

PMFoundations Attenuverter Bedienungsanleitung

GEA

GEA VARIVENT Bedienungsanleitung

Walther Systemtechnik

Walther Systemtechnik VMS-05 Bedienungsanleitung

Altronix

Altronix LINQ8PD Montageanleitung

Eaton

Eaton Powerware Series Bedienungsanleitung

WAGO

WAGO 750-407/040-000 Bedienungsanleitung

Sony

Sony CCU-590 Bedienungsanleitung

Graco

Graco 25D614 Bedienungsanleitung

Task Force Tips

Task Force Tips YE-RF-900 Programmierhandbuch

Shini

Shini SPV-U Series Bedienungsanleitung