Overview:
Electric two-way/three-way valves are used for fluid control in industries such as air conditioning, thermal ventilation, and heat treatment plants. Civil systems such as air conditioning, heating, ventilation, domestic hot water, as well as chemical, petroleum metallurgy, and fluid automatic control.
Material: Cast Iron
Valve disc: brass
Valve stem: ICr18Ni9
Nominal pressure: 1.6Mpa
Flow characteristics: Linear
Maximum temperature: 120 ℃
Leakage rate (m3/h) 0.03% of KV value
■ Scope of application:
Electric two-way/three-way valves are used for automatic control in civil systems such as air conditioning, heating, ventilation, and domestic hot water, as well as in production processes in various industries such as chemical, petroleum metallurgy, and electric light industry.

■ Structural image:

■ Installation:
1. Install according to the flow direction displayed on the valve body

2. Before installing the valve, it should be ensured that the pipeline is clean and free of oxides left during welding.

When the pipeline is connected to the valve body, it must be completely aligned. Not subject to vibration.

4. For factories that operate with high-temperature fluids such as steam, superheated water, and hot liquids, expansion joints should be used during installation to avoid pipeline expansion squeezing the valve body.

5. The driver should be installed vertically on the valve body to avoid being installed under the valve.

6. Sufficient space should be left for disassembling the driver from the valve body during daily maintenance.

7. Valves should not be installed in environments with explosive or ambient temperatures above 50 ℃ and below -5 ℃, nor should they be placed in areas with steam, hydraulic jets, or drips.

■ Connection size:

model		Specifications DN（mm）	Main dimensions (mm)							trip (mm)	Execution process △Pmax	Close the pressure differential
Er Tong	tee		L	H	H1	D	K	C	n-d		(KPa)
VB7200-50	VB7300-50	50	23	450	145	165	125	20	4-18	45	500	500
VB7200-65	VB7300-65	65	290	468	150	185	145	20	4-18	45	400	400
VB7200-80	VB7300-80	80	310	475	185	200	160	20	8-18	45	300	300
VB7200-100	VB7300-100	100	350	475	205	220	180	22	8-18	45	300	300
VB7200-125	VB7300-125	125	400	504	230	250	210	22	8-18	45	200	200
VB7200-150	VB7300-150	150	410	532	280	285	240	24	8-22	45	100	100
VB7200-200	VB7300-200	200	520	550	280	340	295	30	12-22	45	100	100

■ Ordering instructions:

1. ① Product name and model ② nominal diameter ③ power supply voltage ④ working pressure difference ⑤ medium used ⑥ connection method ⑦ medium temperature ⑧ nominal pressure ⑨ operation method (normally open, normally closed) ⑩ Whether accessories are included for us to correctly select for you.

2. If the model has already been selected by the design unit, please order directly from our sales department according to the model.

3. When the usage is very important or the environment is complex, please provide design drawings as much as possible