| App Temperature Bound List |
| Material | Medium temperature℃ | Material | Medium temperature℃ | |||||||||||||||||||||||||||||||||||||||||||||||||||
| PVC-C | -20℃~+95℃ | PVC-U | -5℃~+45℃ | |||||||||||||||||||||||||||||||||||||||||||||||||||
| FRPP | -20℃~+120℃ | PPH | -20℃~+110℃ | |||||||||||||||||||||||||||||||||||||||||||||||||||
| PVDF | 40℃~+150℃ | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Product Structural Features |
1. Lightweight: PVC-U is only 1/10 the weight of cast iron, making it easy to transport and install, reducing costs.
2. Superior Chemical Resistance: PVC-U has excellent resistance to acids and alkalis, with the exception of strong acids and alkalis near their saturation point.
3. Durable: PVC-U offers excellent weather resistance and is resistant to corrosion by bacteria and fungi.
4. Non-conductive: PVC-U is non-conductive and is not susceptible to corrosion by electrolysis or electric current, eliminating the need for secondary processing. It is non-flammable and does not support combustion, eliminating fire safety concerns.
5. Low resistance and high flow rate: The smooth inner wall minimizes fluid flow loss, and dirt is less likely to adhere to the smooth pipe surface, making maintenance simple and cost-effective.
6. Easy Installation and Low Cost: Cutting and joining are simple. PVC glue has proven to be safe, reliable, easy to use, and cost-effective.
| PVC-U Coupling |

| DN | D | d1 | d2 | L | Z | e |
| 15 | 27 | 20 | 18 | 35 | 16 | 3.5 |
| 20 | 32 | 25 | 23 | 40 | 18.5 | 3.5 |
| 25 | 40 | 32 | 30 | 47 | 22 | 4 |
| 32 | 50 | 40 | 38 | 55 | 26 | 5 |
| 40 | 61 | 50 | 47 | 65 | 31 | 5.5 |
| 50 | 75 | 63 | 60 | 80 | 37.5 | t6 |
| 65 | 88 | 75 | 72 | 92 | 44 | 6.5 |
| 80 | 104 | 90 | 86 | 107 | 51 | 7 |
| 100 | 127 | 110 | 105 | 127 | 61 | 8.5 |
| 125 | 161 | 140 | 134 | 158 | 76 | 10.5 |
| 150 | 184 | 160 | 154 | 180 | 86 | 12 |
| 200 | 249 | 225 | 219 | 247 | 118.5 | 12 |
| 250 | 309 | 280 | 272 | 303 | 146 | 14.5 |
| 300 | 346 | 315 | 306 | 338 | 163. 5 | 15.5 |
| 350 | 392 | 355 | 349 | 380 | 184 | 18.5 |
| 400 | 440 | 400 | 393 | 430 | 206 | 20 |
| 450 | 494 | 450 | 430 | 477 | 231 | 22 |
| 500 | 548 | 500 | 480 | 527 | 256 | 24 |
| 600 | 692 | 630 | 600 | 657 | 321 | 31 |
| 700 | 758 | 710 | 690 | 737 | 361 | 22.5 |
| 800 | 843 | 800 | 780 | 830 | 406 | 20 |
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