Model and specification of pipeline anti-corrosion electric melting sleeve

Model and specification of pipeline anti-corrosion electric melting sleeve

The construction process is as follows:
1. Ensure that the epoxy coating on the parts covered by the heat shrink tape at both ends of the weld seam is contaminated, remove rust from the surface of the steel pipe node, and gently polish the polyethylene coating covered by the heat shrink tape with a steel brush,
Make this part of the polyethylene coating have a certain roughness.
2. Use a clean cloth or dry air to blow away the attachments on the steel pipe and polyethylene coating.
3. Preheat the weld seam with a propane spray gun, ensuring that the steel pipe line is wider than the heat shrink zone, and the preheating temperature at the weld seam is 75 degrees Celsius.
4. When installing the heat shrink tape, select the end with the sealing sheet attached, remove the protective liner, and gently heat it up to overlap 150mm
5. Remove the remaining protective pads and wrap the remaining heat shrink tape around the joint. Loosely wrap the heat shrink tape around the pipeline, ensuring appropriate overlap size.
6. Gently heat the backing at the lower overlap and the adhesive at the upper overlap, then overlap the heat shrink tape and press the sealing sheet onto the overlap.
7. Gently heat the sealing sheet and pat it with a gloved hand, repeating this step from one end to the other. Use a roller to roll from the middle to both sides to smooth out the folds of the sealing sheet.
8. Use appropriate flame to heat the middle and surrounding areas, with a longer heating stroke.
During the thermal shrinkage process of the heat shrink belt, continue heating from the middle to one side until the shrinkage is complete.
10. When the adhesive overflows on both sides of the heat shrink tape, the shrinkage is completed, and then the surface of the heat shrink tape is continuously heated to ensure the connection.
11. When the heat shrink belt still has temperature and softness, use a roller to squeeze the heat shrink belt and remove any bubbles. If necessary, reheat it to remove any bubbles.

Model and specification of pipeline anti-corrosion electric melting sleeve

The Chinese name for electric heating melting sleeve material is special electric heating wire mesh, which has a very ideal melting effect. The new generation of electric heating melting sleeve products in China adopts special electric heating wire mesh, and the bonding parts are quite ideal. Its connection strength and sealing effect are very good, making it an updated product of domestic electric heating melting sleeve. Electric melting sleeve is an auxiliary component for connecting PE sheets to jacket pipes through electric melting after bending, covering, and rolling. The melting effect is quite ideal. Specification of electric melting sleeve

This product is made of high-density polyethylene (HDPE) as the substrate and electric heating mesh hot pressed and embedded composite. After being connected by electricity, a molten material flow is formed between the product and the pipe, and molecules can penetrate and diffuse each other. After cooling, a strong bond is formed, and a 45 degree guide angle is designed on both sides to be used as a traction pipe fitting. The connection strength is higher than that of the base material, the sealing effect is good, the sealing performance is high, the corrosion resistance and aging resistance are high, and the construction is convenient and fast. The product is suitable for: direct buried insulation pipe joint repair; Central control winding pipe, steel strip reinforced pipe spiral corrugated pipe; Directly buried oil insulation pipe joint repair. Electric fusion welding machine: This product is designed and developed specifically for the welding of high-density polyethylene polyurethane insulation pipes with electric fusion sleeves (belts). It has a high degree of automation, with automatic conversion when powered on at 220V/380V, easy to carry weight, durable and suitable for various construction environments.