The most important point

For the valve using ES coil, you must note that the medium temperature should be

no more than 80 degree

1. Use on AC/DC solenoid valve,not change original solenoid valves structure

2. maintain low power,only 20% of normal coil power

3, Slowly heating-up, under long-time power-on working status,

4. the coils temperature≤40℃, longer life time

5. Instant and Strong electromagnetic attraction, 3 times more powerful than normal coil,enhance max working pressure

6. No abnormal noise when using AC voltage

Shipping Terms:

1. We ship most of orders within 1-3 business day after receiving your payment(for sample).

2. We will post tracking number by e-mail after processing your order.

3. We provide combine shipping if you have multiple orders. In order to get combine shipping price, please send us a combine shipping request.

Founded in 1965, Yuyao No.4 Instrument Factory has been a professional manufacturer of solenoid valves and has enjoyed an excellent reputation through the past more than 50 years in China. With the introduction of foreign cutting-edge technology, and the sustained innovation and self-improving, the company has mastered the key technology and is keeping pioneer position in the field of fluid solenoid valve.

The company is certified by the ISO9001:2000 and the GJB9001A-2001 military quality system, we have production license and 3C certificate for Ex-proof products, many products have passed the CE、ROHS、ACS、FDA、UL etc. international certifications. The company participated in drafting the national safety standards for GB30439.6—2014 solenoid valve, and is authorized to manufacture customized solenoid valves for the military products.

The company is equipped with superior production machines, advanced process flows, complete testing systems; the products have sophisticated structure, reliable performance, fine outlook and reasonable price, covering over 40 series and 3000 specifications, having been exported to more than twenty countries and areas, such as USA, France, UK, Germany, Italy, Australia, Russia, Taiwan, and the middle east countries etc., and our distributors spread all over the whole country.

The company owns high quality staff and professional R&D group, with strict and innovative attitude, we can customize products to cater specific requirements of customers, and provide fast-response after-sale support. We persist in “customer-first, integrity, human-oriented, excellence”, offering satisfied products and service to the customers on-promise, enhancing the “Round Star” brand.

Sincerely welcome to visit our company, looking forward to having a nice cooperation and common development.