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Installation method of rubber flexible blow down check valve

[source: unknown] [date: 2020-08-18 15:17] [heat: ]
Installation method of rubber flexible blow down check valve
Rubber flexible blowdown check valve is also called rubber duckbill valve, rubber blowdown check valve, duck beak rubber check valve, rubber slow closing check valve, etc. The main models of rubber flexible blowdown check valve are xf-t, xf-f and xf-x. According to the installation method, it can be divided into socket type, inlaid type, built-in type, flange type, installation plate type, mortar or cement pipe type. Rubber flexible blowdown check valve can effectively prevent backflow, backflow and sediment formation. Different from the former fixed round pipe outlet, the jet velocity of rubber flexible blowdown check valve has a complex nonlinear relationship with the outlet flow. The test shows that the flow rate of the sewage discharged by the rubber flexible blowdown check valve can reach the effective mixing speed, which is far more than that required by the same mixing of circular pipe The flow rate is much smaller. Various tests are carried out on the flow characteristics of different valve ports. At the same time, the experimental data are analyzed, and a general two-dimensional internal dynamic calculation formula is obtained. These test results show that the use of sleeve type duckbill shaped valve can make the diffusion more stable, at the same time, the jet speed is large, and the energy is also large The results show that the duckbill shaped nozzle has better diffusion effect than the standard circular nozzle.
The rubber flexible blowdown check valve is designed with sleeve at the installation position of the valve body, which is sheathed into the matching connecting pipe. The inner wall of the pipe and sleeve can be coated with waterproof glue for sealing, and metal clamps are used. Gasket shall be properly added between the clamp mouth, and the connecting bolt shall be tightened. If auxiliary liner pipe is used, the auxiliary liner pipe shall be sealed and welded with the reserved pipe. When the nominal diameter is greater than DN800, due to the heavy weight of the valve body, and the impact of a large amount of residual water and water flow in the body cavity during operation, a supporting rod shall be added. Lift the valve body stably for a long time (rings are reserved for valve bodies above DN800).
Gongyi Yuanda water supply materials Co., Ltd. is a professional manufacturer engaged in the research and development of water supply and drainage equipment, with strong technical force, high quality products and timely supply. The main products are: rubber joint, waterproof sleeve, expansion joint, transmission joint, duckbill valve, expansion joint, compensator and other products. Tel: 0371-64030029, welcome to contact us!
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