Bi-flow solenoid valve

Detailed Product Description

SSV series two-way bi-flow solenoid valves are mainly used for the defrosting of wind cooling heat pump refrigeration unit and the defrosting of supermarket refrigerators as well.
The adoption of SSV series can reduce the amount of check valves and solenoid valves in the refrigeration system, which makes system pipeline designs more reasonable.

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, the valve flows bi-directionally. While de-energized in the coil, plug stem will drop and close the small orifice because of spring force and its weight. When inlet pressure is higher than outlet pressure across valve, the valve closed. When outlet pressure is higher than inlet pressure across valve, a few medium can flow across the valve in opposite direction.

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
Flare SAE	SSV6	5/16	0.4	0.005	2.1	1.7	85	45	97
	SSV8	3/8	1				85	45	97
	SSV10A	1/2	1.8				85	45	97
	SSV13A	5/8	3				89	45	97
	SSV16	3/4	4.5				119	60	120
	SSV19	7/8	5				119	60	120
Solder ODF	SSV6W	5/16	0.4				125	45	97
	SSV8W	3/8	1				125	45	97
	SSV10AW	1/2	1.8				125	45	97
	SSV13AW	5/8	3				150	45	97
	SSV16W	3/4	4.5				185	60	120
	SSV19W	7/8	5				190	60	120
	SSV25W	1-1/8	9.5	0.03			232	72	120
		1-3/8					250	72	120
	SSV32W	1-3/8	15				281	86	130
		1-5/8					281	86	130
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,F means waist flange,K means normal opened valves.