The original characteristics of the pipeline do not change

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Grooved fittings only use the groove rolling machine to press the groove on the outer surface of the pipe to be connected, without damaging the internal structure of the pipe. This is the unique technical advantage of grooved fittings. If traditional welding operations are used, many pipes with anti-corrosion layers on the inner wall will be damaged. Therefore, the specification stipulates that galvanized pipes, plastic-coated steel pipes, steel composite pipes, etc. should not be connected by welding and flanges, otherwise secondary processing is required.

(3) Promotes construction safety
Using the technology of connecting the fittings with the groove, only cutting machines, groove rolling machines and wrenches for tightening the bolts are required on site, which is convenient for the organization of construction. However, when using welding and flange connections, complex power cables, cutting machines, welding machines, oxygen and uk email list acetylene cylinders, etc. are required, which complicates the organization of construction and also brings the risk of leakage and fire. At the same time, the welding slag generated during welding and gas cutting will inevitably enter the pipeline, which can easily cause the blocking of the pipeline valves and even the equipment during use, and pollute the water quality in the pipe.

In addition, welding and flanging inevitably require long, high-intensity operations at height, which are also prone to industrial accidents.

(4) Good system stability and convenient maintenance
The groove connection method has unique flexibility, making the pipeline resistant to vibration, compression and expansion. Compared with welding and flange connection, the stability of the pipeline system is increased and it is more suitable for temperature changes, thereby protecting the pipeline valves and reducing the damage to the structural parts caused by the stress of the pipeline.