1. Product introduction of the PTFE bellow
Our PTFE bellows are essential components in chemical process systems, designed to compensate for thermal expansion and contraction while resisting corrosion from harsh media. The inner lining is made of polytetrafluoroethylene, providing excellent resistance to most strong acids, bases, and organic solvents. They are heat-resistant, typically operating up to 200°C for extended periods.
2. Product parameter and application of the PTFE bellow
Our PTFE bellows are used to mitigate expansion and contraction of pipes, containers, and other equipment due to temperature fluctuations, as well as expansion or displacement caused by other factors, providing a vibration-damping effect.
| Nominal Diameter | Number of Waves | Length (mm) | Allowable Compensation (±△X) (mm) | Permissible Radial Offset (b) (degrees) | Permissible Radial Angle (a) (degrees) | Operating Pressure (MPa) | |
| DN(mm) | NPS(inch) | ||||||
| 25 | 1 | 3 | 80 | 12 | 8 | 20 | 0.3 |
| 32 | 1 1/4 | 3 | 80 | 14 | 12 | 20 | 0.3 |
| 40 | 1 1/2 | 3 | 85 | 17 | 15 | 25 | 0.3 |
| 50 | 2 | 3 | 95 | 20 | 20 | 25 | 0.2 |
| 65 | 2 1/2 | 3 | 110 | 22 | 23 | 30 | 0.2 |
| 80 | 3 | 3 | 115 | 24 | 24 | 30 | 0.2 |
| 100 | 4 | 3 | 120 | 26 | 25 | 30 | 0.1 |
| 125 | 5 | 3 | 130 | 29 | 25 | 30 | 0.1 |
| 150 | 6 | 3 | 140 | 32 | 20 | 25 | 0.1 |
| 200 | 8 | 3 | 150 | 40 | 20 | 25 | 0.06 |
| 250 | 10 | 3 | 160 | 40 | 12 | 15 | 0.06 |
| 300 | 12 | 3 | 180 | 40 | 12 | 10 | 0.06 |
3. Delivery, shipping, and service
- Delivery: We ensure on-time delivery while guaranteeing quality. Shipping: We use professional iron frames and fumigation-free wooden crates, along with flexible transportation options, to ensure the safe arrival of your goods.
- Warranty: The entire unit is covered by a one-year warranty (excluding wear and tear).
- Service: We provide on-site installation guidance from professional engineers and customized operator training.
4. FAQ
Q: Are F4 and PTFE the same material?
A: Yes. F4, PTFE, and Teflon all refer to polytetrafluoroethylene.
Q: What’s the most important step in selecting a product?
A: It’s crucial that we provide accurate and detailed operating information, including media composition and concentration, operating temperature, and operating pressure. This ensures you select the most suitable and safest product.