Yoshitake DP-14C is a diaphragm-type solenoid valve belonging to the RED MAN ultra-high performance series. It is configured as a normally opened, AC coil valve with JIS 10K FF flanged connections and features a robust bronze body with an NBR diaphragm. The valve is designed for use with air, cold and hot water, and oil (20 cSt or less) at working pressures up to 1.0 MPa and temperatures up to 60°C. The DP-14C supports both horizontal and vertical installation and ensures zero valve seat leakage.

Features

• Horizontal and vertical installation.
• 0 MPa minimum differential pressure (0.1 MPa or more is required for vertical installation).
• Available with FKM (optional).
• Available with a terminal box made of resin (optional).

Diaphragm Type Solenoid Valve Matrix

Voltage and operation	AC voltage	AC voltage	DC voltage	DC voltage
Type	Normally closed	Normally opened	Normally closed	Normally opened
Screwed type	DP-16	DP-12C, DP-16C	DP-12D, DP-16D	DP-12CD, DP-16CD
Flanged type	DP-18	DP-14C, DP-18C	DP-14D, DP-18D	DP-14CD, DP-18CD

Specifications

Model	AC coil / DC coil	Application	Working pressure	Min. differential pressure	Valve seat leakage	Max. temperature	Operation	Body Material	Valve Material	Connection
DP-12C / DP-14C	AC coil	Air, Cold and hot water, Oil (20 cSt or less)	0-1.0 MPa (unusable under vacuum)	0 MPa (0.1 MPa or more for vertical)	No	60°C	Normally opened	Bronze	NBR (diaphragm)	JIS Rc screwed (12C) / JIS 10K FF flanged (14C)
DP-12D / DP-14D	DC coil	Air, Cold and hot water, Oil (20 cSt or less)	0-1.0 MPa (unusable under vacuum)	0 MPa (0.1 MPa or more for vertical)	No	60°C	Normally closed	Bronze	NBR (diaphragm)	JIS Rc screwed (12D) / JIS 10K FF flanged (14D)
DP-12CD / DP-14CD	DC coil	Air, Cold and hot water, Oil (20 cSt or less)	0-1.0 MPa (unusable under vacuum)	0 MPa (0.1 MPa or more for vertical)	No	60°C	Normally opened	Bronze	NBR (diaphragm)	JIS Rc screwed (12CD) / JIS 10K FF flanged (14CD)

Stainless Steel Models

For stainless steel body models, refer to the DP-16 and DP-18 series.

Specifications of Coil

Rated voltage	AC100/200V, AC110/220V	DC24V
Voltage fluctuation tolerance	Rated voltage ±10%	Rated voltage ±10%
Rated current	0.42/0.21A (AC100/200V), 0.38/0.19A (AC110/220V)	1.13A
Starting current	1.64/0.82A (AC100/200V), 1.48/0.74A (AC110/220V)	-
Insulation type	Class H	Class H
Protection structure	Dust-proof, Splash-proof	Dust-proof, Splash-proof
Degree of protection	IP64	IP64
Insulation resistance	More than 50MΩ / 500V megger	More than 50MΩ / 500V megger
Anti-voltage test	1500 V/min	1500 V/min

Dimensions (mm) and Weights (kg)

DP-14C, DP-18C (Flanged, AC Coil, Normally Opened)

Nominal size	d	L	H	H1	Weight (kg)
15A	15	120	205	47.5	2.9
20A	20	130	212	50.0	3.5
25A	25	145	228	62.5	5.0
32A	32	160	255	67.5	6.8
40A	40	170	261	70.0	7.5
50A	50	195	276	77.5	10.2

Note: The DP-18 series is slightly heavier and uses a welding flanged structure.

Nominal Size Selection Chart

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, 0.35 MPa, and 600 m³/h (standard condition), respectively, first find intersection point (a) of P1 = 0.5 MPa and P2 = 0.35 MPa. Trace down vertically from this intersection point (a) to find intersection point (b) with Q = 600 m³/h. Since this intersection point (b) lies between nominal sizes 20A and 25A, select the larger one, 25A.

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 0.7 MPa, 0.5 MPa, and 300 L/min, respectively, first find intersection point (a) of differential pressure (ΔP = 0.7 - 0.5 = 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.

Structural Drawing and Parts List