What is saddle fusion? Saddle fusion (sidewall fuson) is, like butt fusion and socket fusion, another process based on hot plate welding. Saddle heat fusion differs from either socket, or butt fusion methods by performing fusion into the side of the pipe wall in a transverse orientation to the main pipe, rather than in line with the pipe. Hdpe saddle welding required workshop saddle fusion machines. This hdpe fusing process can be conducted while pressurized creating a [hot tap" when allowed by regulations and the pipeline owner. The pipe and saddle fitting surfaces are heated/fusing until they reach a proper temperature, the heating tool is removed and then the weld is formed. The process is complete following a cooling process. Always have a trained joining operator perform this procedure using properly maintained Pipe Fabrication Workshop Machines. For polyethylene reducing tee fabrication, you can view Wuxi Yuda MRH series HDPE/Poly/Polyethylene plastic pipe saddle welding machines on "www(dot)cnbuttfusion(dot)com" Saddle Fusion,Electrofusion Saddle,Saddle Welding Machine,Saddle Fusion Machines WUXI MEIERTE MACHINERY TECHNOLOGY CO.,LTD , https://www.pipefusionwelding.com
Table 9 common faults and handling
Multi-stage pump acceptance requirements and common troubleshooting
1 acceptance
1.1 multistage centrifugal pump 24h continuous operation, the technical indicators have reached the design requirements or to meet production needs.
1.2 to achieve good standards.
1.3 maintenance records complete, accurate, according to the provisions of the acceptance procedures.
2 Maintenance and Troubleshooting
2.1 routine maintenance
2.1.1 Strict implementation of lubrication management system.
2.1.2 to maintain the oil seal pressure pump seal chamber pressure 0.05-0.15 MPa.
2.1.3 regularly check the outlet pressure, vibration, seal leakage, bearing temperature, etc., found that the problem should be promptly addressed.
2.1.4 regularly check whether the pump subsidiary pipeline is smooth.
2.1.5 regularly check the pump bolts are loose.
2.1.6 hot oil pump every half an hour after turning the car until the pump temperature dropped to below 80 ℃ so far, the standby pump should be regularly turning.
2.2 failures and treatment (see Table 9)