Yoshitake DP-100-C is a normally opened, pilot-operated piston type solenoid valve designed for a wide range of applications including steam, air, cold and hot water, and various gases. Featuring a cast stainless steel (SCS14A) body and a PTFE valve disc, it offers exceptional corrosion resistance and is suitable for clean fluids. The DP-100 series incorporates an Anti-Sticking Mechanism (ASM) that provides three times more scale resistance and overall durability compared to conventional models. It supports a wide working pressure range of 0 to 1.0 MPa and can be installed horizontally or vertically.

Features

1. Ultra-high performance technology gives high precision in performance.
2. Three-times more durability than conventional models.
3. ASM (Anti-Sticking Mechanism) for three-times more scale resistance.
4. Body and main parts made of stainless steel give higher corrosion resistance, making it usable for clean fluid.
5. A combined internal component enables easy cartridge replacement with this product installed.
6. Improved air tightness by adopting a PTFE gasket.
7. Usable for a wide pressure range of 0-1.0 MPa (0.03-1.0 MPa if the coil is sideways).
8. Horizontal and vertical installation (within 90 degrees from upward position of the coil).

Specifications

Model	DP-100-C (Normally Opened)	DP-100F-C (Normally Opened)
Nominal size	10A-50A	15A-65A
Structure	Pilot-operated piston type	Pilot-operated piston type
Application	Steam, Air, Cold/hot water, N2, CO2 (dry), Ar, Oil (≤20 cSt)	Steam, Air, Cold/hot water, N2, CO2 (dry), Ar, Oil (≤20 cSt)
Working pressure	0-1.0 MPa (unusable under vacuum)	0-1.0 MPa (unusable under vacuum)
Min. differential pressure	0 MPa (0.03 MPa or more for vertical installation)	0 MPa (0.03 MPa or more for vertical installation)
Allowable leakage	50 mL/min under standard conditions (at air pressure 0.6 MPa)	50 mL/min under standard conditions (at air pressure 0.6 MPa)
Temperature range	5-180°C (no freeze condition)	5-180°C (no freeze condition)
Ambient temperature	50°C or less (no freeze condition)	50°C or less (no freeze condition)
Body Material	Stainless steel (SCS14A)	Stainless steel (SCS14A)
Piston Material	Stainless steel (SCS14A)	Stainless steel (SCS14A)
Valve disc Material	PTFE	PTFE
Connection	JIS Rc screwed	JIS 10K FF flanged

Note

The DP-100 series also includes the DP-100 and DP-100F, which are the normally closed variants sharing the same core specifications.

Coil Specifications (AC)

Rated voltage	AC 100 / 200 V selective type	AC 110 / 220 V selective type
Frequency	50 / 60 Hz common	50 / 60 Hz common
Allowable fluctuation	Rated voltage -5% to +10%	Rated voltage -5% to +10%
Insulation class	Insulation class H	Insulation class H
Protective structure	Dust tight, Splash proof	Dust tight, Splash proof
Ingress protection	IP64 (JIS C0920)	IP64 (JIS C0920)

Dimensions and Weights

DP-100-C (Screwed)

Nominal size	d	L	H1	H	Weight (kg)
10A	Rc 3/8	70	14.5	174	1.7
15A	Rc 1/2	70	14.5	174	1.7
20A	Rc 3/4	80	17.5	177	1.8
25A	Rc 1	95	21.0	181	2.2
32A	Rc 1-1/4	110	26.0	218	3.4
40A	Rc 1-1/2	120	29.5	225	4.3
50A	Rc 2	140	36.5	233	5.9

DP-100F-C (Flanged)

Nominal size	d	L	H1	H	Weight (kg)
15A	15	120	47.5	207	3.0
20A	20	130	50.0	210	3.5
25A	25	145	62.5	223	4.8
32A	32	160	67.5	260	7.2
40A	40	170	70.0	265	8.3
50A	50	195	77.5	274	10.8
65A	65	198	87.5	284	12.6

Operation (Normally Opened Type)

Opening operation (Power OFF) When the power is turned OFF, the coil excitation is canceled and the pilot valve and plunger are lifted up by force of the lift spring, to open the pilot valve. The pressure at the upper part of the valve drops due to the outgoing pressure toward the outlet through the pilot port. This makes the valve lifted up to opened position by the inlet pressure.

Closing operation (Power ON) When the power is turned ON, the coil is excited and pulls down the plunger, to close the pilot valve. The pressure at the upper part of the valve rises due to the incoming inlet pressure from the bleed port which is communicated with the inlet. With the support of attractive force of the plunger, this makes the valve pushed down to closed position.

Nominal Size Selection

For Steam

For Air

For Water

Installation and Piping

Installation Precautions

• Differential pressure of at least 0.03 MPa is required to actuate the product when the coil is set sideways.
• Use the stop valves at the inlet and outlet of the product at full open condition.
• When using the product under conditions where the outlet pressure can accidentally become higher than the inlet pressure, install a check valve at the outlet side to prevent backflow.
• If the product is used in a steam line and negative pressure generates at its outlet side when it is closed, install a vacuum breaker at the outlet side.

Structure and Parts

No.	Name of Parts	Material
1	Body	Cast Stainless Steel (SCS14A)
2	Cover	Cast Stainless Steel (SCS14A)
6	Valve Disc	PTFE
10	Valve	Cast Stainless Steel (SCS14A)
11	Piston Ring	PTFE
16	Pilot Valve	Stainless Steel (SUS304)
22	Plunger	Stainless Steel (K-M31)
29	Coil	---