What Is a 24V Solenoid?

Direct-acting solenoid valve. When the power is applied, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve opens; when the power is off, the electromagnetic force disappears, the spring presses the closing member on the valve seat, and the valve closes.

Direct-acting solenoid valve

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Direct-acting solenoid valve

It is a combination of direct-acting and pilot-operated principle. When there is no pressure difference between the inlet and the outlet, after the power is turned on, the electromagnetic force directly lifts the pilot small valve and the main valve closing part upwards, and the valve opens. When the inlet and outlet reach the starting pressure difference, after power is applied, the electromagnetic force pilots the small valve. The pressure in the lower chamber of the main valve rises, and the pressure in the upper chamber decreases, so the main valve is pushed upward by the pressure difference. When the power is off, the pilot valve uses a spring. Force or media pressure pushes the closing piece and moves down to close the valve.

Features: 1. It can work normally under vacuum, negative pressure and zero pressure, but the diameter is generally not more than 25mm.

2. It can also operate under zero pressure difference, vacuum or high pressure, but the power is large, and it must be installed horizontally.

1) Normally closed type. When the coil is energized, the electromagnetic coil generates sufficient electromagnetic force to lift the moving parts (consisting of the magnetic core, the valve stem, the upper and lower diaphragms / seals) from the valve seat, and the valve opens. The moving parts are pressed against the valve seat and the valve is closed.

2) Normally open type, the action direction is opposite to normally closed type.

size	Seat diameter mm	Flow coefficient Kv	Standard model	Fluid pressure range MPa
25	25	12.0	JY2303 / 0604 / .322	0 ~ 0.8
32	32	18.0	JY2304 / 0604 / .322	0 ~ 0.8
40	40	26.0	JY2305 / 0604 / .352	0 ~ 0.8
50	50	38.0	JY2306 / 0604 / .352	0 ~ 0.8

Standard model	L mm	H mm	Connection size	Texture
JY2303 / 0604 / .322	110	215	Flange, 4--17.5, hole pitch 85	304 stainless steel
JY2304 / 0604 / .322	125	245	Flange, 4--17.5, hole pitch 100
JY2305 / 0604 / .352	150	253	Flange, 4--17.5, hole pitch 110
JY2306 / 0604 / .352	160	268	Flange, 4--17.5, hole pitch 125