Qingdao Changyue Plastic Machinery Co.,Ltd.

Buried pre-insulated pipe is made of carrier pipe (steel/stainless steel/plastic/copper) and polyurethane rigid foam Material (insulation layer), high density polyethylene outer casing (outer sheath).

Because of its low heat loss, good anti-corrosion and insulation performance, fast and safe construction and other advantages, it is widely used in liquid and gas transmission network, central heating network, municipal construction engineering and other fields. It is an important infrastructure and "lifeline" to ensure the safe and efficient operation of the city, and is recognized as an environmental protection and energy-saving product.

HDPE Jacket Process Flow: 

Vacuum feeding PE granule-->hot air dry material-->extrusion plasticizing-->mold shaping-->Vacuum    sizing-->water cooling-->Pulling out-->cutting pipe-->carrier laying-off pipe

1. hopper dryer ⒉ Single Screw Extruder ⒊ extrusion mould die ⒋ Head bracket ⒌ Vacuum calibration device ⒏ Water cooling tank  ⒐ haul-off  ⒑ Planetary cutting machine  11.Pipe stacker  ⒓. Loader 13. PLC control

Technical Parameter：