Qingdao Huashida Machinery Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Delivery Time | come to an agreement in respect of the delivery time |
| Packaging Details | Packing according to Machine |
| Application | Produce District Heat Distribution Pipe |
| Setting Box | Vacuum Setting |
| Loading Way | Vacuum Automatic Feeding |
| Standard | ASTM, GB, API, DIN |
| Foam Material | Polyurethane |
| Feeding Capacity | 1000kg/H |
| Brand Name | HUASHIDA |
| Certification | ISO9001 |
| Place of Origin | Qingdao，Shandong，China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Delivery Time | come to an agreement in respect of the delivery time |
| Packaging Details | Packing according to Machine | Application | Produce District Heat Distribution Pipe |
| Setting Box | Vacuum Setting | Loading Way | Vacuum Automatic Feeding |
| Standard | ASTM, GB, API, DIN | Foam Material | Polyurethane |
| Feeding Capacity | 1000kg/H | Brand Name | HUASHIDA |
| Certification | ISO9001 | Place of Origin | Qingdao，Shandong，China |
| High Light | PU Sprayed Foaming Production Line ，HDPE Winding Preinsulation Pipe Production Line | ||
PU Sprayed Foaming HDPE Winding Preinsulation Pipe Continuous Production Line
Product description
Vacuum calibrating method pre-insulated pipe outside casing extrusion line is the most advanced and popular machinery in the world. HSD brand absorbs the advanced technology from German and improve to meet development. Especially compared with internal pressure method, Vacuum calibrating method is much better than it for stiffness, pressure resistance and surface smooth.
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
Technological flow:
Technological flow of the polyurethane coating steel preinsulated pipe equipment:
1. Remove rust from steel pipe surface
2. preheat the steel pipe to get it ready for polyurethane spraying
3. Spray polyurethane evenly on steel pipe outer surface
4. Wrap melted HDPE strap around the PU foam
5. Trim the pipe ends
Other supplier racks
The integrated welded structure, without adjustment devices, cannot be installed when the ground is uneven. The height of the stand cannot be adjusted, resulting in uneven rolling of steel pipes on the stand, too fast rolling, or difficult rolling, which poses a safety hazard.
Main accessories
| Item | Standard value | Tested value |
| Pipe diameter | DN300-DN1620 | |
| OD contraction rate | <=2% | 1.46 |
| Radial shear strength | ≥0.12(23±2ºC)MPa ≥0.08(140±2ºC)MPa | 0.14 0.09 |
| Shock strength | (-20ºC, 3Kg, hammer falls from 2 meters high) No visible cracks | OK |
| Peak Operating temperature | 140ºC | 150ºC |
| Continuous operating temperature | 120ºC | 140ºC |
| Service life | ≥30 years | OK |
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
1. Our Factory Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe... 1. Our Factory Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe...
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