steal pipe with Polyurethane foam insulation and HDPE jacket sleeve
| Name | Pre-insulated Pipe |
| structure | work steel pipe/polyurethane insuation layer /HDPE outer protection pipe |
| the material of insuation layer | polyurethane foam |
| Â Installation Method |
1.cold installation 2.Prestress Installation 3.Preheat Installation Method 4.One-Time Compensator Installation Method |
Main Indexes of Polyurethane insulation layerÂ
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| indexes | preference Standard | unit | standard requirement |
| Density | CJ/T114-4.3.2 | kg/m3 |  ≥60 |
| Average | CJ/T114-4.3.1 | mm | ≤0.5 |
| Percentage of close area | CJ/T114-4.3.1 | % | ≥ 88 |
| Compressive strength | CJ/T114-4.3.3 | MPa | ≥ 0.3 |
| Water Absorption | CJ/T114-4.3.5 | % | Immersion in boiling water 90 minute,bubble water absorption should be not more than 10% |
| Cavity | CJ/T114-4.3.1 |  | ≤ 0.033 |
Specification of pre-insulated Pipe
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|
Specifications (mm) |
steel pipe OD×Thickness (mm) |
Outer protection tube diameter ×Wall thickness (mm) |
Insulation thickness (mm) |
Unit weight Kg/m |
| 32/90 | 32×2.8 | 90×2.5 | 26.5 | 3 |
| 45/110 | 45×2.8 | 110×2.5 | 30.0 | 4 |
| 57/120 | 57×3.0 | 120×2.5 | 29.0 | 6 |
| 60/125 | 60×3.5 | 125×3.0 | 29.5 | 7 |
| 76/140 | 76×4.0 | 140×3.0 | 29.0 | 9 |
| 89/160 | 89×4.0 | 160×3.0 | 32.5 | 11 |
| 108/180 | 108×4.0 | 180×3.0 | 33.0 | 13 |
| 133/200 | 133×4.5 | 200×3.2 | 30.3 | 17 |
| 159/250 | 159×4.5 | 250×3.9 | 41.6 | 22 |
| 219/315 | 219×6.0 | 315×4.9 | 43.1 | 39 |
| 273/365 | 273×6.0 | 365×5.6 | 40.4 | 49 |
| 325/420 | 325×7.0 | 420×7.0 | 40.5 | 67 |
| 377/500 | 377×7.0 | 500×7.8 | 53.7 | 81 |
| 426/560 | 426×7.0 | 560×8.8 | 58.2 | 94 |
| 478/600 | 478×7.0 | 600×8.8 | 52.2 | 104 |
| 529/630 | 529×7.0 | 630×9.8 | 40.7 | 114 |
| 529/655 | 529×7.0 | 655×9.8 | 53.2 | 117 |
| 630/760 | 630×8.0 | 760×11.5 | 53.5 | 158 |
| 720/850 | 720×8.0 | 850×12.0 | 53.0 | 181 |
| 820/960 | 820×10.0 | 960×14.0 | 56.0 | 252 |
| 920/1055 | 920×10.0 | 1055×14.0 | 53.5 | 281 |
| 1020/1155 | 1020×10.0 | 1155×14.0 | 53.5 | 312 |
| 1220/1380 | 1220×12.0 | 1380×16.0 | 64.0 | 444 |
| 1420/1602 | 1420×14.0 | 1602×16.0 | 75.0 | 590 |
| 1. | good insulation properties |
| 2. | low heat loss |
| 3. | Â heat loss is 25% of the traditional pipe. |
| 4. | energy saving |
| 5. | Â about 30 yeas move the service life, low cost |
| 6. | has a strong waterproof and corrosive resistance and high mechanical strength |
| 7. | no attached trench ,can be directly buried in the ground or water. |
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Product Descriptionsteal pipe with Polyurethane foam insulation and HDPE jacket sleeve
| Name | Pre-insulated Pipe |
| structure | work steel pipe/polyurethane insuation layer /HDPE outer protection pipe |
| the material of insuation layer | polyurethane foam |
| Â Installation Method |
1.cold installation 2.Prestress Installation 3.Preheat Installation Method 4.One-Time Compensator Installation Method |
Main Indexes of Polyurethane insulation layerÂ
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| indexes | preference Standard | unit | standard requirement |
| Density | CJ/T114-4.3.2 | kg/m3 |  ≥60 |
| Average | CJ/T114-4.3.1 | mm | ≤0.5 |
| Percentage of close area | CJ/T114-4.3.1 | % | ≥ 88 |
| Compressive strength | CJ/T114-4.3.3 | MPa | ≥ 0.3 |
| Water Absorption | CJ/T114-4.3.5 | % | Immersion in boiling water 90 minute,bubble water absorption should be not more than 10% |
| Cavity | CJ/T114-4.3.1 |  | ≤ 0.033 |
Specification of pre-insulated Pipe
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|
Specifications (mm) |
steel pipe OD×Thickness (mm) |
Outer protection tube diameter ×Wall thickness (mm) |
Insulation thickness (mm) |
Unit weight Kg/m |
| 32/90 | 32×2.8 | 90×2.5 | 26.5 | 3 |
| 45/110 | 45×2.8 | 110×2.5 | 30.0 | 4 |
| 57/120 | 57×3.0 | 120×2.5 | 29.0 | 6 |
| 60/125 | 60×3.5 | 125×3.0 | 29.5 | 7 |
| 76/140 | 76×4.0 | 140×3.0 | 29.0 | 9 |
| 89/160 | 89×4.0 | 160×3.0 | 32.5 | 11 |
| 108/180 | 108×4.0 | 180×3.0 | 33.0 | 13 |
| 133/200 | 133×4.5 | 200×3.2 | 30.3 | 17 |
| 159/250 | 159×4.5 | 250×3.9 | 41.6 | 22 |
| 219/315 | 219×6.0 | 315×4.9 | 43.1 | 39 |
| 273/365 | 273×6.0 | 365×5.6 | 40.4 | 49 |
| 325/420 | 325×7.0 | 420×7.0 | 40.5 | 67 |
| 377/500 | 377×7.0 | 500×7.8 | 53.7 | 81 |
| 426/560 | 426×7.0 | 560×8.8 | 58.2 | 94 |
| 478/600 | 478×7.0 | 600×8.8 | 52.2 | 104 |
| 529/630 | 529×7.0 | 630×9.8 | 40.7 | 114 |
| 529/655 | 529×7.0 | 655×9.8 | 53.2 | 117 |
| 630/760 | 630×8.0 | 760×11.5 | 53.5 | 158 |
| 720/850 | 720×8.0 | 850×12.0 | 53.0 | 181 |
| 820/960 | 820×10.0 | 960×14.0 | 56.0 | 252 |
| 920/1055 | 920×10.0 | 1055×14.0 | 53.5 | 281 |
| 1020/1155 | 1020×10.0 | 1155×14.0 | 53.5 | 312 |
| 1220/1380 | 1220×12.0 | 1380×16.0 | 64.0 | 444 |
| 1420/1602 | 1420×14.0 | 1602×16.0 | 75.0 | 590 |
| 1. | good insulation properties |
| 2. | low heat loss |
| 3. | Â heat loss is 25% of the traditional pipe. |
| 4. | energy saving |
| 5. | Â about 30 yeas move the service life, low cost |
| 6. | has a strong waterproof and corrosive resistance and high mechanical strength |
| 7. | no attached trench ,can be directly buried in the ground or water. |
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The soft curtain quick cold storage door has a simple design and is designed with a heating antifreeze device to ensure smooth and efficient operation of the product in a low temperature working environment. The structure incorporates the function design of collision avoidance recovery. When the door body is accidentally impacted, it deviates from the track and automatically repairs the return position during the ascent process. This structure not only facilitates the safe and smooth operation of the door body, but also operates more than 150,000 times a year without failure. It extends the life of the product while reducing component replacement and maintenance costs.
Such rapid door is specially designed for freezer, cold room, or cool room. It is made from 30 mm thick thermal insulated,sandwich curtain, and with all-round heating device to avoid frozen. Thus it can work well in low temperature like -25 º C. It can reduce thermal transmission by fast opening and closing, and thermal insulated door curtain. For each door, it can help customer save energy cost by at least USD 8000 every year,than traditional normal speed cold room sliding doors.
Cold Storage High Speed Door, high speed freezer doors, cold store doors, cold storage zipper doors, industrial freezer doors
SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfafrs.com