Water solenoid valves

Detailed Product Description

SV-G series solenoid valves can be used as actor of automatic system in water supply system, fire control system, and water spray system in dirty proofing or agricultural. They also can be used for pneumatic hydraulic and food machine.
Solenoid valves use full-closed magnetic coil and DIN international standard electric plug, so it is characterized by its good insulation, waterproof, moisture proof, anti-vibration and corrosion resistance.

Operating principle
While energized in coil, the electromagnetic power opens the small orifice. Then the pressure in upside of valve reduced, so the pressure difference between both side of diaphragm happen and lead to diaphragm lift to open the main orifice. While de-energized in the coil, plug stem will drop and close the small orifice because of spring force and its weight. The flow media enters into upside of diaphragm through throttle hole, then pressure in both side of diaphragm balances, then the diaphragm will drop and close the main orifice.

Technical data
Ambient temperature: -20 ~ 50 ^.C
Medium temperature: -25 ~ 120 ^.C
Max. working pressure: 3 MPa
Available medium: R134a,R22,R407C,R404A/507,air,water and oil.
Optional voltage of solenoid coils:
A.C.: 24V,36V,110V,220V,380V.
D.C.:12V,24V,110V,220V

Type and data

Connection form	Model	Connection dimension (in.)	Kv value (m3/h)	Opening diff. pressure (MPa)			Dimension(mm)
				Min.	Max.
					A.C.	D.C.	Length	Wide	Height
Internal thread	SV1/4G	G1/4	1	0.005	2.1	1.7	80	45	100
	SV3/8G	G3/8	1.8				80	45	100
	SV1/2G	G1/2	3				68	45	100
	SV3/4G	G3/4	5				120	58	119
The Kv value is the water flow in m3/h at a pressure drop across valve of 0.1MPa,ρ=1000 kg/m3 Letters after the model: G means internal thread,K means normal opened valves.