Yoshitake DP-10 Series User manual

■EPDT-028d■
ＤＰ－１０ Series
TYPE DP-10･13, TYPE DP-10D･13D
TYPE DP-12･14, TYPE DP-12D･14D
TYPE DP-15･17, TYPE DP-15D･17D
TYPE DP-16･18, TYPE DP-16D･18D
Instruction Manual
Thank you very much for purchasing our solenoid valves.
Please read this instruction manual thoroughly before using the solenoid valves, so
that you may do so correctly and safely. Please carefully store this bulletin in a
handy place.
－－－－－The following safety symbols are used in this manual.－－－－－
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. (“Caution” may also be used to
indicate other unsafe practices or risks of property damage.)
Contents
１．Overview········································································································ １
２．Specifications & Performance ····························································· １
３．Dimensions & Weight ········································································ ２～３
４．Operation ······································································································ ４
５．Nominal Size Selection Method
５．１ Nominal Size Selection Chart ·············································· ５～９
５．２ Calculating the Nominal Size ···················································· １０
６．Installation
６．１ Piping Example ················································································ １０
６．２ Wiring Method ·················································································· １１
６．３ Warning & Caution for Installation ·········································· １２
７．Operating Procedure
７．１ Warning & Caution for Operation ············································ １３
７．２ Test Working ···················································································· １３
８．Maintenance Procedure
８．１ Warning & Caution for Maintenance ······································ １４
８．２ Troubleshooting ·············································································· １５
８．３ Disassembly Procedure ······························································· １５
８．４ Disassembly Drawing ························································ １６～１７
After Sales Service

-1-
■EPDT-028d■
１．Overview
The DP-10 series are compact, Pilot-Operated and Piston type high reliability solenoid
valves featuring wide application for such various as steam, air, water and oil. And also wide
products variation for such various requirements as AC/DC voltage, normally closed/opened
and brass/stainless made.
２．
Specifications & Performance
Model DP-10 DP-13 DP-15 DP-17 DP-12 DP-14 DP-16 DP-18
Type Piston type Diaphragm type
Application Steam･Air･Water･Oil (20cSt or less) Air･Water･Oil （20cSt or less）
Working
pressure
0.05～1.0 MPa 0～1.0 MPa
（Not available for use with vacuum）
Min. working
differential
pressure
0.05 MPa
(Horizontal installation: more than 0.1MPa)
0 MPa
(Horizontal installation: more than 0.1MPa)
Valve seat
leakage
50 mL/min （For Air: 0.6MPa） None
Max.
temperature
180 ℃ 60 ℃
Operation Normally closed
Material
Body Bronze Stainless Steel Bronze Stainless Steel
Valve Stainless Steel ＮＢＲ（Diaphragm）
Disc PTFE
Connection
JIS Rc
Screwed
JIS 10K FF
Flanged
JIS Rc
Screwed
JIS 10K FF
Flanged
JIS Rc
Screwed
JIS 10K FF
Flanged
JIS Rc
Screwed
JIS 10K FF
Flanged
●Viton (FKM) diaphragm is also available for diaphragm type.
●DC coil is also available. (DP-□□D)
●Products complying with Water Supply Law will be DP-12-N and DP-14-N.
Coil specification
Rating voltage
AC100/200V AC110/220V
DC24V
Selective connection type 50/60Hz
Allowable regulation ±10％ on rating voltage
Rated current 0.42/0.21A 0.38/0.19A 1.13A
Starting current 1.64/0.82A 1.48/0.74A
Class of coil insulation Class “H”
Ingress protection
code
IP64
Solenoid enclosure Dust tigtht・Splash proof
Insulation resistance 50MΩand more/500V Megger
Voltage resistance test 1500V/min
Caution
Please collate with attached nameplate and specification of ordered model.
* Please consult factory in case they do not match each other.

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■EPDT-028d■
３．Dimensions & Weight
■DP-10/15 ■DP-10D/15D
(DP-15: 15-10A) (DP-15: 15-50A)
(mm)
Nominal
Size d L H
1
H Wight （kg）
DP-10/15 DP-10D/15D DP-10/15 DP-10D/15D
10A Rc 3/8 70 14.5 119 134 1.2 2.0
15A Rc 1/2 70 14.5 119 134 1.2 2.0
20A Rc 3/4 80 17.5 126 141 1.4 2.2
25A Rc 1 95 21.0 133 148 1.8 2.6
32A Rc 1 1/4 110 26.0 155 170 2.6 3.4
40A Rc 1 1/2 120 29.5 162 177 3.2 4.0
50A Rc 2 140 36.5 177 192 5.1 5.9
■DP-13/17 ■DP-13D/17D
(DP-17 is welded flange type.) (DP-17D is welded flange type.)
(mm)
Nominal
Size d L H
1
H Weight （kg）
DP-13/17 DP-13D/17D DP-13/17 DP-13D/17D
15A 15 120 47.5 152.0 167 2.7 3.5
20A 20 130 50.0 158.5 174 3.3 4.1
25A 25 145 62.5 174.5 190 4.8 5.6
32A 32 160 67.5 196.5 212 6.6 7.4
40A 40 170 70.0 202.5 218 7.3 8.1
50A 50 195 77.5 217.5 233 10.0 10.8
65A
*
50 198 87.5 227.5 243 13.5 14.3
* 65A is for DP-13/13D only.

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■EPDT-028d■
■DP-12/16 ■DP-12D/16D
(DP-16: 15-50A) (DP-16D: 15-50A)
（mm）
Nominal
Size d L H
1
H Weight （kg）
DP-12/16 DP-12D/16D DP-12/16 DP-12D/16D
10A Rc 3/8 70 14.5 109.5 124 1.1 1.9
15A Rc 1/2 70 14.5 109.5 124 1.1 1.9
20A Rc 3/4 80 17.5 116.5 131 1.3 2.1
25A Rc 1 95 21.0 123.5 138 1.7 2.5
32A Rc 1 1/4 110 26.0 150.5 166 2.5 3.3
40A Rc 1 1/2 120 29.5 157.5 173 3.1 3.9
50A Rc 2 140 36.5 172.5 187 5.0 5.8
■DP-14/18 ■DP-14D/18D
(DP-18 is welded flange type.) (DP-18D is welded flange type.)
（mm）
Nominal
Size d L H
1
H Weight（kg）
DP-14/18 DP-14D/18D DP-14/18 DP-14D/18D
15A 15 120 47.5 142.5 157 2.6 3.4
20A 20 130 50.0 149.0 164 3.2 4.0
25A 25 145 62.5 165.0 180 4.7 5.5
32A 32 160 67.5 192.0 207 6.5 7.3
40A 40 170 70.0 198.0 213 7.2 8.0
50A 50 195 77.5 213.0 228 9.9 10.7

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■EPDT-028d■
４．Operation
* The structure differs slightly for DP-12/14/16/18/12D/14D/16D/18D.
（１） Operation
When the power is turned ON, the coil① is magnetized and the plunger③ is sucked
up, thereby open the pilot valve④. The pressure at the upper part of the valve
(diaphragm)⑧ flows to the outlet side via pilot port⑤, causing a pressure drop. The
valve (diaphragm)⑧ is then pushed up by the inlet pressure, and the valve is opened.
（２） Closing operation
When the power is turned OFF, the plunger③ is pushed down by a pin/kick spring②
and dead weight, thereby close the pilot valve④. The inlet pressure is introduced
through the bleed port⑦ to upper part of the valve (diaphragm)⑧, thereby equalize
the inlet pressure. The valve (diaphragm)⑧ is then pushed down and closed by the
pin/kick spring② and the valve spring⑥.
DP-10D/13D/15D/17D
*
DP-10/13/15/17

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■EPDT-028d■
[A]
P
2
: Outlet Pressure MPa V: Flow Rate kg/h
Nominal
Size
・65A
５．Nominal Size Selection Method
５．１ Nominal Size Selection Chart
■Piston type (For steam)
(DP-10/13/15/17/10D/13D/15D/17D)
【Example】
Under the following conditions, the appropriate nominal size would be determined as
described below. Inlet pressure(P
1
): 0.7MPa; Outlet pressure(P
2
): 0.5MPa; Flow rate
(W): 400kg/h. First, find the point[A] where (P
1
) and (Ｐ
2
) intersect. Next find the point
[B] where a line drawn straight down from point[A] intersects the (W) line. In the
above example, the point[B] is located between the 15A and 20A nominal size valves,
so larger size of 20A should be selected.
[B]

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■EPDT-028d■
・65A
Nominal
Size
[A]
[B]
P
2
: Outlet Pressure MPa V: Flow Rate kg/h
■Piston type (For air)
(DP-10/13/15/17/10D/13D/15D/17D)
【Example】
Under the following conditions, the appropriate nominal size would be determined as
described bellow. Inlet pressure(P
1
): 0.4MPa; Outlet pressure(Ｐ
2
): 0.3MPa; Flow rate
(Q) of air(20℃)： 300m
3
/h(Normal condition). First, find the point[A] where (P
1
) and
(P
2
) intersect. Next, find the point[B] where a line drawn straight down from point[A]
intersects the (Q) line. In the above example, the point[B] is located between the 15A
and 20A nominal size valves, so the larger size of 20A should be selected.

-7-
■EPDT-028d■
■Piston type (For water)
(DP-10/13/15/17/10D/13D/15D/17D)
【Example】
Under the following conditions, the appropriate nominal size would be determined as
described bellow. Inlet pressure(P
1
): 0.5MPa; Outlet pressure(P
2
): 0.35MPa; Flow rate
(Ｖ): 150L/min. First, find the point[A] where (V) and (Δ P) = (P
1
) - (P
2
). In the above
example, the point[A] is located between the 20A and 25A nominal size valves, so the
larger size of 25A should be selected.
[A]
Nominal
Size
・65A
V: Flow Rate L/min
△P: Differential Pressure MPa

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■EPDT-028d■
Nominal
Size
[A]
[B]
■Diaphragm type (For air)
(DP-12/14/16/18/12D/14D/16D/18D)
【Example】
Under the following conditions, the appropriate nominal size would be determined as
described bellow. Inlet pressure(P
1
): 0.5MPa; Outlet pressure(Ｐ
2
): 0.35MPa; Flow rate
(Q) of air(20℃): 600m
3
/h(Normal condition). First, find the point[A] where (P
1
) and (P
2
)
intersect. Next, find the point[B] where a line drawn straight down from point[A]
intersects the (Q) line. In the above example, the point[B] is located between the 20A
and 25A nominal size valves, so the larger size of 25A should be selected.
P
2
: Outlet Pressure MPa V: Flow Rate kg/h

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■EPDT-028d■
■Diaphragm type （For water）
(DP-12/14/16/18/12D/14D/16D/18D)
【Example】
Under the following conditions, the appropriate nominal size would be determined as
described bellow. Inlet pressure(P
1
): 0.7MPa; Outlet pressure (P
2
): 0.5MPa; Flow rate
(Ｖ): 300L/min. First, find the point[A] where (V) and (Δ P) = (P
1
) - (P
2
). In the above
example, the point[A] is located between the 25A and 32A nominal size valves, so the
larger size of 32A should be selected.
Nominal
Size
[A]
V: Flow Rate L/min
△P: Differential Pressure MPa