
Add to Cart
Rigid polyurethane spraying polyethylene winding prefabricated directly buried insulation pipe consists of steel working pipe, spraying polyurethane rigid foam insulation layer and winding polyethylene outer protective pipe. See the following figure for product structure:
2. Technological flow:
Steel pipe Load-up online---->External shot blasting ----> dust collector---->internal blow out---->lifting transport pipe trolley---->transport to chuck----> chuck hoist cylinder----> alignment chuck center---->mechanical arm station adjust---->chuck hydraulic clamping---->chuck guard at both ends----> carrier pipe servo transport---->IF heating----> PU foam spraying----> pipe load down line----> transport pipe ----> PE film wrapping----> water cooling---->cutting down pipeline---->trim end of pipe---->printing mark&loading down finished pipe---->sealing end of pipe
3.Advantages of Huashida stand
The steel pipe stand can be installed within an error range of ± 80mm of the user's ground foundation. The height of the stand is adjusted by anchor mounting bolts. When installing the stand, a slope of 5 ‰ is reserved, making it easy to roll large pipe diameters. Reduce labor intensity. After the installation of the platform frame, the foundation of the platform frame shall undergo secondary grouting treatment, with a neat and generous appearance
4. Main indices of the composite pipe
Item | Standard value |
Pipe diameter | DN300-DN1620 |
OD contraction rate | <=2% |
Radial shear strength | ≥0.12(23±2ºC)MPa ≥0.08(140±2ºC)MPa |
Shock strength | (-20ºC, 3Kg, hammer falls from 2 meters high) No visible cracks |
Peak Operating temperature | 140ºC |
Continuous operating temperature | 120ºC |
Service life | ≥30 years |
56. Company profile