Overview of products

The micro-resistance slow-closing check valves produced by our factory are different from other check valves in the market. After years of on-site tracking and improvement, our factory has successfully developed high-tech products by absorbing foreign advanced technology. This product can resist many kinds of media, especially small sand and welding slag, and has no noise and flow resistance, convenient installation and replacement, sensitive check, reliability, no leakage and long service life. Since the successful trial production, tens of thousands of sets have been used in major oil production plants, and they are the designated products for secondary oil recovery and tertiary oil recovery in Daqing. On the technical basis of micro-resistance rolling Check Valve, field demand and local media adaptation, this micro-resistance slow-closing double-seal check valve has been repeatedly tested and used, which has been praised by users. Patent number of this product: ZL201120019840. 4200DN200 

 Purpose

 Micro-resistance slow-closing check valve, which must be equipped with products at the outlet of high, medium and low pressure pumps. Use it in necessary pipelines and wellheads to prevent sudden power failure and ensure that high-pressure backflow causes pump burning, equipment damage and energy flow loss.