Product Description 24v dc Solenoid Valve for refrigeration system Specifications SV series two ways normal closed solenoid valve with diaphragms can be widely used in refrigeration, pneumatic and hydraulic system, also in boiler and fire-fighting, etc.
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 (Also have High temperature models can Max. 150 ℃)
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 size (in.)	Kv value (m3/h)	Opening diff. pressure (MPa)			Dimension (mm)
				Min.	Max.
					A.C.	D.C.	Length	Wide	Height
Flare SAE	SV6	5/16	0.4	0.005	2.1	1.7	85	45	97
	SV8	3/8	1				85	45	97
	SV10A	1/2	1.8				85	45	97
	SV13A	5/8	3				89	45	97
	SV16	3/4	4.5				119	60	120
	SV19	7/8	5				119	60	120
Solder ODF	SV6W	5/16	0.4				125	45	97
	SV8W	3/8	1				125	45	97
	SV10AW	1/2	1.8				125	45	97
	SV13AW	5/8	3				150	45	97
	SV16W	3/4	4.5				185	60	120
	SV19W	7/8	5				190	60	120
	SV25W	1-1/8	9.5	0.03			232	72	120
		1-3/8					250	72	120
	SV32W	1-3/8	15				281	86	130
		1-5/8					281	86	130
Waist flange	SV25F		9.8				152	112	165
	SV32F		15				162	112	175

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: A means improved type, W means solder ODF ,K means normal opened valves. Photo:                     

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