导言
A PVC 压力管 is designed to convey fluids under pressure, widely used for water supply, irrigation, and industrial applications due to its strength, corrosion resistance, and cost-effectiveness. They come in different types and pressure classes to suit various needs.
Here’s a clear, professional overview of PVC Pressure Pipe — including its definition, classification, and main applications:
What is a PVC Pressure Pipe?
1. PVC Pressure Pipe is a type of polyvinyl chloride (聚氯乙烯) pipe specifically designed to carry fluids under pressure, such as water, irrigation flow, or industrial liquids.
2. It is manufactured using unplasticized PVC (UPVC) resin, which provides high strength, rigidity, and corrosion resistance, making it suitable for long-term pressurized systems.
3. PVC pressure pipes are typically joined using solvent cement joints, rubber ring (push-fit) joints, or threaded fittings, depending on the pressure rating and application.
🚰 Types of PVC Pressure Pipes
Here are the main types of PVC pipes used for pressure applications:
| Type of PVC Pipe | Key Characteristics | Common Applications |
|---|---|---|
| PVC-U (Unplasticized) | Rigid, cost-effective, excellent corrosion resistance. Maximum operating temperature typically 45-60°C. | Municipal water supply, pressure drainage, irrigation. |
| PVC-O (Oriented) | Molecular orientation enhances strength and impact resistance; higher pressure rating (up to 2.5 MPa). | Buried or above-ground pressure water systems, suitable for higher-pressure applications. |
| Industrial Schedule 80 | Thicker walls than standard PVC-U, made from rigid PVC compound for higher physical strength. | Chemical processing, industrial plant water, wastewater treatment. |
💧 Pressure Classes and Selection
PVC-U pipes for water supply are manufactured in standard Nominal Pressure (PN) grades, including PN 0.6, 0.8, 1.0, 1.25, and 1.6 MPa. The pressure rating is based on a water temperature of 20°C. As the temperature of the conveyed fluid increases, the pressure-bearing capacity decreases, and the pressure rating must be multiplied by a reduction factor (e.g., 0.8 for 25-35°C and 0.63 for 35-45°C).
🏗️Applications of PVC Pressure Pipe
PVC pressure pipes are used across municipal, industrial, agricultural, and residential systems. Common applications include:
1. Water Supply Systems
Potable (drinking) water distribution networks
Main and branch pipelines
Rural and urban water supply systems
2. Irrigation Networks
Agricultural irrigation mains and laterals
Drip and sprinkler systems
5. Construction and Building Services
Plumbing supply lines
Roof and floor riser systems
Advantages of PVC Pressure Pipe
- Lightweight → Easy to transport and install
- Corrosion and chemical resistant → Long lifespan in diverse environments
- Smooth inner surface → Reduces friction loss, maintains high flow rates
- Economical → Lower cost than metal pipes for similar performance
- 无毒，可安全用于饮用水
总结
PVC pressure pipe is a durable uPVC pipe used to transport water and fluids under pressure in systems such as water supply, irrigation, and industrial pipelines. Available in different pressure classes (PN6–PN25) or schedules (40 和 80), it is lightweight, corrosion-resistant, smooth inside, and safe for potable water. Commonly joined by solvent cement, rubber ring, or threaded fittings, it offers a long-lasting, low-maintenance solution for reliable fluid distribution.
I hope this overview helps you understand PVC 压力管道. If you have a specific application in mind and need help choosing a suitable pipe class, feel free to ask.
关于卓信塑业
SAM-UK 是专业人士 19 岁以上 生产乙烯基建筑型材产品的制造商，以及 聚氯乙烯 , CPVC , PPH , PPR , 聚丙烯 管材和管件、阀门、水龙头等。我们拥有 SGS\SONCAP\ISO9001\CE\NSF支持颜色/尺寸定制。欢迎咨询 目录 和 产品您可以通过电子邮件与我们联系 [email protected]
