Product Description:
Check valves are mechanical valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. Fluid flow in the desired direction opens the valve, while backflow closes the valve. The mechanics of check valve operation are not complicated. Most check valves contain a ball that sits freely above the seat, which has only one through hole. The ball has a slightly larger diameter than that of the through hole. When the pressure behind the seat exceeds that above the ball, liquid is allowed to flow through the valve. Once the pressure above the ball exceeds the pressure below the seat, the ball returns to rest in the seat, forming a seal that prevents backflow. We manufacture check valves in conformity with ASME B16.34 standards. All valves are tested according to API 589 requirements. The marking is as per MSS SP-25 standards.
Zhejiang Ronze Valve Co., Ltd. is located in well-known China Pump&Valve hometown-Five-star Industrial zone, Oubei town, Wenzhou. The company, established in 1989, being to the first steep provider net of China Petroleum&Natural Group, the pointed manufacture company of the Chemical Industrial Equipment Corpporation, and the mtmbder of China CITYGAS ASSCOCIATION. The company covers 4500 square meters and the construction area is 3400 square meters. It has become a valve company which integrates Researching, manufacturing, designing, sales and after services as a specialized unit. Our main products is API valves, forged valves and steam traps. Including gate valve, globe valve, check valve, ball valve and steam traps. The valves manufactured by our company are widely applicable to the fields of petroleum, chemical industry, power industry, metallurgy, pharmacy paper making and food with good reputation and reliability from users.
The small-bore valves mainly include gate valves, stop valves, check valves and low-temperature valves. All of our products are made in accordance with the API standards.
The steam traps mainly include thermodynamic type, free ball float type, inverted bucket type bimetal type, bellow type, sylphon type, high temperature pressure disc type, and lever ball float type.
Materials of the products can be carbon steel, austenitic stainless steel, alloy steel and other special materials.
Our ball valve, gate valve, globe valve and check valve all sell well in many markets.
