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HDPE Water Pipe Acid And Alkali Resistance, Organic Solvents


HDPE Water Pipe The most common connection methods are: hot melt connection, fused connection, socket-type flexible connection, flange connection, steel-plastic transition joint connection.

1, HDPE Water Pipe hot melt connection

Hot-melt connection is a special heating tool, under pressure in the HDPE Water Pipe or pipe fittings to be connected to the part to be melted, remove the heating tool, the pressure of the two melting surface together, at a steady pressure for a period of time , Until the joint cools. Hot melt connections include hot melt butt connection, hot melt socket connection, hot melt saddle connection.

2, HDPE Water Pipe fused connection

Fused connection is built-in resistance wire with a special fuse part of the connection with the pipe in close contact with power, through the embedded resistance wire heating connection parts, so that integration, until the joint cooling. The fused connection can be used to connect to HDPE Water Pipe or socket fittings with different types and different melt flow rates. The fused connection is divided into fused socket connection and fused saddle type connection.

3, pe socket type flexible connection

Polyethylene pipe jacking flexible connection is a new type of connection developed with reference to the principle of socket-type flexible connection of cast iron and polyvinyl chloride (pvc-u). It is welded at one end of the HDPE Water Pipe with a reinforced polyethylene Mouthpiece.

Socket-type flexible connection is one of the HDPE Water Pipe directly into the tube or pipe fittings in the special socket, through the socket in the lock ring compression pull, rubber seal tight seal, to connect pipe and pipe fittings purposes.

4, HDPE Water Pipe flange connection

Flange connection is mainly used for polyethylene pipe and metal pipes or valves, flow meters, pressure gauges and other ancillary equipment connection. Flange connection mainly by the polyethylene flange connector, steel or aluminum flanges, gaskets or seals, bolts, nuts and other components. Flange connection is through the fastening bolts, nuts, flange connections and flange pieces in close contact to achieve the purpose of connection.

5, HDPE Water Pipe of the steel-plastic transition joints connected

The steel-plastic transition joint is used to connect polyethylene pipes and metal pipes by cold or other prefabricated steel-plastic transition joints. Steel-plastic transition joints have anti-pull locking rings and seals, usually require a good sealing performance and resistance to drawing, pressure resistance is greater than the system of polyethylene pipes.


1. Basic characteristics: high-density polyethylene is an opaque white wax-like material, the proportion of water than the light, the specific gravity of 0.941 ~ 0.960, soft and tough, but slightly harder than LDPE, but also slightly elongated, non-toxic, tasteless.

2. Combustion characteristics: flammable, from the fire can continue to burn, the top of the flame was yellow, the bottom was blue, burning will melt, a liquid dripping, no black smoke, at the same time, issued when the issue of paraffin burning The smell

3. The main advantages: Naisuan Jian, resistant to organic solvents, excellent electrical insulation, low temperature, can still maintain a certain toughness. Surface hardness, tensile strength, rigidity and other mechanical strength are higher than LDPE, close to PP, than PP tough, but the surface finish as PP

Part of the product

1. Arena board (ice hockey board); 2. Backpack frame; 3. Bulletproof plate; 4. Bottle cap; 5. Chemical resistance of the pipeline system; 6. Coaxial cable insulator; 7. Food storage containers; Car fuel tank; 9. steel pipe corrosion protection; 10. electrical and pipe boxes; 11. far infrared lens; 12 folding chairs and tables; 14. geothermal heat transfer tube system; 15. heat-resistant fire mortar; Helmet; 17. hula hoop; 18. natural gas distribution pipe system