The most important point

For the valve using ES coil, you must note that the medium temperature should be no more than 80 degree

Mechanical properties:
1. Body material: Standard stainless steel, special selection of copper;
2, the internal components: Stainless Steel;
3, the sealing material: rubber (standard). Many other special composite materials;
4, hole diameter: 1/32 (specific models refer to the table);
5, connecting thread diameter: 1/8 NPT standard;
6, the electrical connection diameter: Explosion-proof pipe connection 1 / 2NPT;
7, protection class (UL & CSA certification): Class I, Div 1, Group C and D - Class II, Div 1, Groups E, F, and G; Div 2, Groups C, D, E, F, and G;
8, life: ≥500 million times, depending on the application and maintenance;
9, unit product weight: 0.3KG.

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.