Yoshitake DP-100 Series Bedienungsanleitung

■EPDT-247i■

MODEL DP-100 series

Pilot-operated Solenoid 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 4

5. Nominal Size Selection 6

5.1 Nominal size selection chart 6

5.2 Nominal size selection 9

6. Installation 9

6.1 Piping example 11

6.2 Wire method 12

7. Operating Procedure 13

7.1 Test working 13

8. Maintenance 13

8.1 Daily and periodic inspections 14

8.2 Periodic replacement of parts 15

8.3 Troubleshooting 15

8.4 Disassembly 17

9. Exploded Drawing 19

Warranty Information

■EPDT-247i■

1. Usage of the Product

The DP-100 series, solenoid valves of pilot-operated type, are used for automatic on-off control of a fluid flow

in combination with remote operated equipments or various control switches.

2. Specifications

Model

Normally closed DP-100 and DP-100-D DP-100F and DP-100F-D

Normally open DP-100-C DP-100F-C

Nominal size 10-50A 15-65A

Structure Pilot-operated piston type

Application Steam, Air, Cold and hot water, N2gas,

Co2gas (dry), Ar gas, Oil (20 cSt or less)

Working pressure 0-1.0 MPa (Unusable under vacuum)

Min. differential pressure

(*1)

0 MPa

(0.03 MPa or more is required for vertical installation)

Allowable valve seat leakage 50 mL/min under standard conditions (at air pressure of 0.6 MPa)

Temperature range 5-180˚C (no freeze condition)

Ambient temperature 50˚C or less (no freeze condition)

Installation posture

(*1)

Vertical or horizontal installation

( within 90 degrees from upward position of the coil)

Material

Body Cast stainless steel

Piston Stainless steel

Valve disc PTFE

Connection JIS Rc screwed JIS 10K FF flanged

*1: See Table 1.

Table 1 Min. differential pressures and installation postures

Horizontal piping Vertical piping

Min.Differentialpress.:0.03MPa

Min.Differentialpress.:0MPa

Min.Differentialpress.:0.03MPa

Coil

Coil set sideways

Coil set upward

Coil

Within 90˚ Within 90˚

±5˚

■EPDT-247i■

Performance and specifications of AC coil (DP-100, DP-100F, DP-100-C and DP-100F-C)

Rated voltage AC 100 / 200 V selective type AC 110 / 220 V selective type

50 / 60 Hz common

Nominal size 10-25A 32-65A 10-25A 32-65A

Rated current 0.34 / 0.17 A 0.46 / 0.23 A 0.32 / 0.16 A 0.42 / 0.21 A

Starting current 1.64 / 0.82 A 1.90 / 0.95A 1.48 / 0.74A 1.80 / 0.90A

Allowable fluctuation Rated voltage -5% to +10%

Insulation class Insulation class H

Protective structure Dust tight, Splash proof

Ingress protection code IP64 (JIS C0920)

Insulation resistance 50 MΩand more / 500 V megger

Withstand voltage test 1500 V/min

Performance and specifications of DC coil (DP-100-D and DP-100F-D)

Rated voltage DC 24 V

Nominal size 10-25A 32-65A

Rated current 1.34A 1.14A

Allowable fluctuation Rated voltage -5% to +10%

Insulation class Insulation class H

Protective structure Dust tight, Splash proof

Ingress protection code IP64 (JIS C0920)

Insulation resistance 50 MΩand more / 500 V megger

Withstand voltage test 1500 V/min

•Coils equipped with a terminal box (made of plastic) are also available upon request.

Caution

Please confirm that the indications on the product correspond with the specifications

of the ordered product model before use.

* If they are different, do not use the product and contact us.

3. Dimensions and Weights

■Connection: JIS Rc screwed

DP-100 DP-100-D DP-100-C

■EPDT-247i■

[mm]

Nominal

size d L H1DP-100 DP-100-D DP-100-C

H Weight

(kg) H Weight

(kg)

10A Rc 3/8 70 14.5

127 1.4 143

2.2 174

1.7

15A Rc 1/2 70 14.5

127 1.4 143

2.2 174

1.7

20A Rc 3/4 80 17.5

131 1.5 147

2.3 177

1.8

25A Rc 1 95 21.0

135 1.9 151

2.7 181

2.2

32A Rc 1 1/4 110

26.0

172 3.1 194

4.3 218

3.4

40A Rc 1 1/2 120

29.5

178 4.0 200

5.2 225

4.3

50A Rc 2 140

36.5

187 5.6 209

6.8 233

5.9

■Connection: JIS 10K FF flanged

DP-100F DP-100F-D DP-100F-C

[mm]

Nominal

size d L H1DP-100F DP-100F-D DP-100F-C

Weight

(kg)

Weight

(kg)

Weight

(kg)

15A 15 120 47.5

161 2.7

177 3.5

207

3.0

20A 20 130 50.0

164 3.2

180 4.0

210

3.5

25A 25 145 62.5

177 4.5

193 5.3

223

4.8

32A 32 160 67.5

213 6.9

235 8.1

260

7.2

40A 40 170 70.0

219 8.0

241 9.2

265

8.3

50A 50 195 77.5

228 10.5

250 11.7

274

10.8

65A 50 198 87.5

238 12.3

260 13.5

284

12.6

■EPDT-247i■

4. Operation

■Normally closed type (DP-100, DP-100F, DP-100-D and DP-100F-D)

（1）Opening operation (Power ON)

When the power is turned ON, the coil [1] is excited and pulls up the plunger [2], to open the pilot valve [4].

Next, the pressure at the upper part of the valve [7] drops since it flows to the outlet through the pilot port

[5]. The valve [7] is then lifted up to open position by the inlet pressure.

（2）Closing operation (Power OFF)

When the power is turned OFF, the coil [1] excitation is canceled and the plunger [2] drops down by force

of the kick spring [3], to close the pilot valve [4]. The pressure at the upper part of the valve [7] rises due to

the incoming inlet pressure from the bleed port [6] which is communicated with the inlet. With the support

of the kick spring [3], this makes the valve [7] pushed down to closed position.

■EPDT-247i■

Normally open type (DP-100-C and DP-100F-C)

（1）Opening operation (Power OFF)

When the power is turned OFF, the coil [1] excitation is canceled and the pilot valve [4] and plunger [2]

are lifted up by force of the lift spring [3], to open the pilot valve [4]. The pressure at the upper part of the

valve [7] drops due to the outgoing pressure toward the outlet through the pilot port [5]. This makes the

valve [7] lifted up to opened position by the inlet pressure.

（2）Closing operation (Power ON)

When the power is turned ON, the coil [1] is excited and pulls down the plunger [2], to close the pilot

valve [4]. The pressure at the upper part of the valve [7] rises due to the incoming inlet pressure from

the bleed port [6] which is communicated with the inlet. With the support of attractive force of the plunger

[2], this makes the valve [7] pushed down to closed position.

■EPDT-247i■

5. Nominal Size Selection

5.1 Nominal size selection chart

For steam

[How to use the chart]

When selecting the nominal size of a solenoid valve whose inlet pressure (P1), outlet pressure (P2) and

steam (saturated steam) flow rate (W) are 0.5 MPa, 0.3 MPa and 800 kg/h, respectively, first find

intersection point (A) of P1= 0.5 MPa and P2= 0.3 MPa. Trace down vertically from this intersection point

(A) to find intersection point (B) with W = 800 kg/h. Since this intersection point (B) lies between nominal

sizes 25A and 32A, select the larger one, 32A.

■EPDT-247i■

For air

[How to use the chart]

When selecting the nominal size of a solenoid valve whose inlet pressure (P1), outlet pressure (P2) and

air (20˚C)flow rate (Q) are 0.5 MPa, 0.3 MPa and 800 m3/h (standard condition), respectively, first find

intersection point (A) of P1= 0.5 MPa and P2= 0.3 MPa. Trace down vertically from this intersection point

(A) to find intersection point (B) with Q = 800 m3/h (standard condition). Since this intersection point (B)

lies between nominal sizes 20 A and 25A, select the larger one, 25A.

■EPDT-247i■

For water

[How to use the chart]

When selecting the nominal size of a solenoid valve whose inlet pressure (P1), outlet pressure (P2) and

flow rate (V) are 0.5 MPa, 0.3 MPa and 300 L/min, respectively, first find intersection point (A) of the

differential pressure before and after the valve [∆P = 0.5-0.3 = 0.2 MPa] and V = 300 L/min. Since this

intersection point (A) lies between nominal sizes 25A and 32A, select the larger one, 32A.

L/min

■EPDT-247i■

5.2 Nominal size selection

Cv value calculation formula

<Steam>

When

> )PP(P138 Wk

+∆

When

≤

P120

Cv =

<Air>

When

> )PP(P G)t273(

2940

+∆ +

When

≤

P2550 G)t273(Q

Cv +

PGV365.0

Cv ∆

Cv: Cv value of each nominal size ∆P: P1– P2[MPa]

W: Max. steam flow rate [kg/h] K: 1 + 0.0013 × {superheated steam temp.[˚C]

Q: Max. gas flow rate [m3/h (standard condition)]

– saturated steam temp. [˚C]}

V: Max. liquid flow rate [m3/h] G: Specific gravity (relative to air for gas,

P1: Inlet pressure [MPa·A] or relative to water for liquid)

P2: Outlet pressure [MPa·A]

Cv value

Nominal size 10A 15A 20A 25A 32A 40A 50A 65A

DP-100, DP-100F,

DP-100-D, DP-100F-D,

DP-100-C, DP-100F-C 3.0 4.5 7.5 12.0 17.7 25.0 33.6 33.6

6. Installation

Warning

Electric wiring work must be done by experienced professional.

1. If there is a risk of death, bodily injury or damage to property at the time of malfunction of the product,

be sure to install a suitable safety device that controls fluid flow interception/release or sounds an

alarm.

2. The product cannot be used as an emergency shutoff valve.

* The product is not designed as a safety valve such as an emergency shutoff valve. If the product

is applied to a system that needs safety measures, install other equipment besides the product to

ensure the safety.

3. The product is not explosion-proof. Do not use it in the area or ambience where explosive gases

accumulate.

* Using the product under the said conditions may cause fire.

4. Connect the cables only after confirming that no power is supplied.

* Failure to follow this notice may cause an electric shock.

5. Connect the cables according to the instructions after confirming the rated voltage.

* Erroneous cable connection may cause an electric shock or fire.

6. Do not supply electric power to the coil while it is detached from the valve.

* Failure to follow this notice may result in coil burnout or fire due to an overcurrent.

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