Langfang Yi Shun Valve Co., Ltd. is a production, sales and service in one of the modern enterprise. The company is located in Langfang City, Forest City Economic Development Zone, located in Beijing, Tianjin corridor location. Specializing in the production of self-operated flow control valve, pressure valve, differential pressure / flow control valve, adjustable differential pressure control valves, and related units, such as decontamination. Since research products, "operated flow control valve"; solve the heating pipe network water conservancy imbalance problem fundamentally. At the same time saving energy by 20% -30%, saving 15% -20% of heat, use of the product are Beijing heat, Tianjin heat, oil heating systems. For our energy-saving heating professional made outstanding contributions. The company has products Lantern 18 provinces, municipalities and autonomous regions, more than 1,000 units, more than 20 million units. Our solemn commitment to users: free for the heating unit for technical advice and services, with the heating industry advances, product quality has been improving, this generation is not only superior performance, small size, light weight, it also has low noise and password lock function, under the same conditions to reduce noise 10 db. The main product models are: flow control valve DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125 German standard ductile iron resilient seated gate valve RVHX / Z45X-16QF4, Rising stem resilient seated gate valve RRHX / Z41X-. 16Q, digital lock balance valve SP45F-16, operated flow control valve ZL47F-16, the groove handle valve D81X-16, the groove turbine valve D381X-16, butterfly D71X-16, DN50 Self-adjustable differential pressure valve, etc. etc ....