Established in China in 1965, YUYAO No.4 Instrument Factory is a worldwide manufacturer and supplier of solenoid valves. Our products include our gas and liquid solenoid valve, our steam solenoid valve, and our water cooler solenoid valve, to name a few. Our high quality products are widely used in everything from food applications and medicine, to the metallurgy and war industries.

The gas and liquid solenoid valve is a valve for use with water and solar energy.
Working pattern: direct acting type and pilot type. ...
Solenoid Valves with Coils, ES Series Strong electromagnetic attraction, our coil of solenoid valve is 3 times more powerful than normal coil.
Low power consumption, the solenoid coil cost is only 20% of normal coil.
DFD Solenoid ValveThe DFD solenoid valve is a valve for use with the water, liquid, gas and oil(less than 20CST).
The temperature of the medium is between -5 and 80℃. ...
2W Water Air Solenoid ValveThe acting pattern: straight or direct step by step type.
Working pressure normally closed: 0-10bar, normally open: 0-6bar.
The 2W water air solenoid valve is made with forged brass, precision casting stainless steel or ...
RSV Low Power Solenoid ValveThe RSV low power solenoid valve is a valve for use with the water, gas and oil.
The temperature of the medium is between -10 and 80℃.
The acting pattern: pilot type and direct acting type.
RSQ Low Power Solenoid ValveIt is made with the brass HPb59-1.
The RSQ low power solenoid valve is sealed by the NBR membrane.
Protection degree of the coils: IP65
RSP Pilot Solenoid ValveThe RSP pilot solenoid valve is made with forged brass or precision casting stainless steel.
It is sealed by the NBR membrane.
Protection degree of the coils encapsulate coil: IP65.
ZW Water Air Solenoid ValveThe ZW water air solenoid valve is a valve for use with the water, liquid, gas, oil, tartish and alkali materials.
The temperature of the medium is between -5 and 80℃.
The acting pattern: direct step by step.
Stainless Steel Solenoid ValveThe stainless steel solenoid valve is a valve for use with liquid, gas and steam.
The temperature of the medium is equal to or less than 180℃.
The stainless steel solenoid valve is made with the stainless steel SUS304.
YSV Solenoid ValveThe YSV solenoid valve is a valve for use with water, liquid, gas and oil (less than 20CST).
The temperature of the medium is between -5 and 80℃.
The acting pattern: direct acting.
The stainless steel solenoid valve is made with the stainless steel SUS304.
YSZ Bistable Solenoid ValveYSZ bistable solenoid valve is a special valve with pulse bistable and self-holding normally closed characters.
It adopts special coil, high-quality magnetic material and solid mould pressing membrane (main valve seal) so that it has the characteristics of stable property and high reliability.
Special Purpose Solenoid Valve (Underwater Valve, SLDF Series)1. Working medium: Water
2. Medium temperature:-5~60ºC
3. Working pressure: 0~8bar
4. Voltage: AC220V/50HZ/DC24V/AC110V/50HZ
2-Position 2-Way Gas Solenoid Valve, ZCM Series1. Working medium: Natural gas, coal gas, gas
2. Medium temperature: -5~60ºC
3. Working pressure: 0~4bar (see specification parameter table)
4. Work style: Normally closed
The gas and liquid plastic solenoid valve is a valve for use with water, solar energy, agriculture water, etc.
The acting pattern: direct acting.
YSA Plastic Solenoid ValveThe YSA plastic solenoid valve is a valve for use with water, liquid, gas, etc.
The temperature of the medium is between 0 and 60℃.
The acting pattern: pilot type.
2WSL Plastic Solenoid ValveWorking pressure normally closed: 0~7bar, normally open: 0~6 bar.
The 2WSL plastic solenoid valve is made with the GFPA.
It is sealed by the NBR membrane.
YSC Anticorrosive Solenoid Valve (Two Position Two-way Valve)1. Working medium: Acid, alkali, liquid, gas
2. Medium temperature:-5-60℃
3. Working pressure: 0.3-6bar
4. Work style: Normally closed
ZCF-P Anticorrosive Solenoid Valve1. Working medium: acid, alkali, liquid
2. Medium temperature: -5~60℃
3. Working pressure: 0.1~6bar
4. Working style: Normally closed
The steam solenoid valve is a valve for use with the steam used by heaters, radiators, driers, bleaching and dyeing machines, etc.
It uses the pilot type.
PS Steam Solenoid ValveThe PS steam solenoid valve is a valve for use with steam, liquid, gas, and oil.
The temperature of the medium is between -5 and 180℃.
The acting pattern: pilot type.
RSPS Solenoid ValveThe RSPS solenoid valve is a valve for use with steam, liquid, gas, and oil.
The temperature of the medium is between -5 and 180℃.
The acting pattern: direct step by step.
ZCLF Steam Solenoid ValveThe ZCLF steam solenoid valve is used in the steam pipe of heaters, radiators, driers, bleaching and dyeing machines, etc. It uses the automatic or long distance switch to realize the automatic temperature control.
The water cooler solenoid valve is used for the RO pure water cooler.
It features high quality and low price.
The water cooler solenoid valve uses PP+ material and has been CE, ROHS and FDA certified.
YUYAO NO.4 INSTRUMENT FACTORY is a major manufacturer of mini solenoid valve, based in China.  We offer various types of products such as mini solenoid valve, high pressure solenoid valve, gas solenoid valve and so on. 
YSF Irons and Coffee Pot Solenoid ValveThe YSF irons and coffee pot solenoid valve is a valve for use with water, gas and liquid in low viscosity.
Working pressure: 0.02~1.0Mpa.
Operating temperature: -5~180℃.
2W-050-08 Gas and Liquid Solenoid ValveThe 2W-050-08 gas and liquid solenoid valve is a valve for use with water, gas and oil.
Medium temperature: -10~100℃.
Acting pattern of the 2W-050-08 gas and liquid solenoid valve: direct acting.
VX2, VX3 Gas and Liquid Solenoid ValveThe VX2, VX3 gas and liquid solenoid valve is a valve for use with water, gas and oil.
Medium temperature: -10~120℃.
Acting pattern of the VX2, VX3 gas and liquid solenoid valve: direct acting.
Plate Gas and Liquid Solenoid ValveThe plate gas and liquid solenoid valve is a valve for use with water, gas and oil.
It is sealed by the VITON.
Medium temperature: -10~120℃.
VMI Solenoid ValveThe VMI solenoid valve uses the direct acting type.
It is small in volume with all the joints in one pipeline and coils insulated with the pipeline.
Exhaust Solenoid Valve The exhaust solenoid valve is made with brass or stainless steel.
It is sealed by the NBR, VITON or PTFE membrane.
Protection degree of the coils: IP65.
YUYAO NO.4 INSTRUMENT FACTORY is a China-based high pressure solenoid valve manufacturer and supplier.  We offer high pressure solenoid valve, gas solenoid valve, liquid plastic solenoid valve and so on.  Our high quality products are offered at ...
YSE High Pressure Solenoid ValveYSE high pressure solenoid valve adopts the German NASS coil.
Protection degree of the coils: IP65
The acting pattern: two position two way.
BD High Pressure Solenoid ValveThe BD high pressure solenoid valve is a valve for use with gas and liquid.
Operating pattern: normally closed or normally open.
Materials: brass.
YSI High Pressure Solenoid ValveThe applicable media for YSI high pressure solenoid valve are limited to the fluid, high pressure gas etc.
It adopts the pilot-operated action mode and has stainless connection deaden.
YSP High Pressure Solenoid ValveThe YSP high pressure solenoid valve is compatible with various media including fluid, gas and oil (≤20cst).
It works with the pilot-operated action mode.
Solenoid Valve Timer, YS-3800H 1. Adopts flame retardant engineering plastic shell, the solenoid valve timer is safe with high strength.
2. Controlled by microcomputer chip, its timing accuracy is high.
3. Equipped with LED screen, the timer features of night vision function.
Solenoid Valve Timer, YS-720 1. The solenoid valve timer adopts flame retardant ABS shell.
2. Uses knob for adjusting time, adjustment range: ON state for a cycle time of 0.5-10sec, OFF state for a cycle time of 0.5-99min.
3. Service voltage: AC/DC 24-240V

YUYAO has an experienced and professional team for product research and development, a highly knowledgeable staff, and a progressive management team. Through the diligence and hard work of our employees, YUYAO has been ISO certified. We also produce our solenoid valves in accordance with the ISO9001-2000. Every year, YUYAO provides the most up-to-date products available to our customers. In addition, many solenoid valves have been CE, ROHS, TUV, and FDA certified.

YUYAO No.4 instrument factory is a professional solenoid valve manufacturer, based in China.  We specialize in manufacturing plate liquid solenoid valves, water cooler solenoid valves, water air solenoid valves, and more.