PEX to pvc fittings are a type of joint or adapter used to connect PEX pipes to PVC pipes. This fitting allows the connection between PEX pipes and PVC pipes, allowing two different types of pipe systems to be connected to each other, allowing for more flexible pipe layout and installation.
What is PEX pipe?
PEX pipe is a new type of plastic pipe made of cross-linked polyethylene. It can withstand high temperatures and high pressures, and has the characteristics of corrosion resistance, wear resistance, non-toxicity and environmental protection. There are three cross-linking methods for PEX pipes: electron beam cross-linking, chemical cross-linking and hot water cross-linking, among which electron beam cross-linking is the most commonly used.
Characteristics of PEX pipes
1. High temperature and high pressure: PEX pipes can withstand high temperatures up to 95°C and high pressures of 8 bar.
2. Corrosion resistance: PEX pipes are not susceptible to acid and alkali corrosion.
3. Wear resistance: The surface of PEX pipes is hard and smooth and is not susceptible to wear.
4. Non-toxic and environmentally friendly: PEX pipes do not contain plasticizers, are non-toxic and odorless, and meet national environmental protection standards.
What is PVC pipe?
PVC pipe is a commonly used pipe that is widely used in construction, agriculture, chemical industry and other fields. The main raw material of PVC pipes is polyvinyl chloride (PVC). Polyvinyl chloride is a common synthetic resin obtained by polymerization of vinyl chloride monomer. PVC has the characteristics of acid and alkali resistance, corrosion resistance, and good insulation performance, making it an ideal material for making pipes.
The difference between PVC pipe and PEX pipe
The main difference between PVC pipes and PEX pipes is that there are significant differences in their raw materials, performance, application scenarios, hygienic performance, connection methods, prices, etc.
1. From the perspective of raw materials, the raw material of PVC pipe is polyvinyl chloride resin, while the raw material of PEX pipe is polyethylene resin. PVC pipes are made of chlorine atoms in addition to carbon and hydrogen, while PEX pipes are made of only carbon and hydrogen.
2. In terms of performance, PVC pipes have good mechanical properties and insulation properties, and are resistant to acid and alkali. However, they have poor high-temperature resistance and are easily deformed, making them unsuitable for high-temperature environments. PEX pipes are resistant to high temperatures, corrosion, excellent elasticity, and frost resistance, but the price is relatively high.
3. In terms of application scenarios, PVC pipes are often used in wire and cable insulation layers, drainage systems, residential drainage and fresh air systems, etc. PEX pipes are suitable for building water supply systems, floor heating systems and heating pipes where high temperature resistance and corrosion resistance are required.
4. In terms of hygienic performance, PVC pipes have poor hygienic performance and are easy to breed bacteria, so they are not suitable for use in drinking water pipes. PEX pipes have better hygienic performance and meet the requirements of drinking water pipes.
5. In terms of connection method, PVC pipes generally use glue connection or sealing ring socket connection, and the strength and sealing of the connection are relatively low. PEX pipes are connected using hot melt or electric fusion. The connections are integrated and the interface strength is high.
6. In terms of price, the price of PVC pipes is relatively low, while the price of PEX pipes is higher. Under the same pressure, PEX pipes have thicker walls and are more expensive, while PVC pipes have thinner walls and are relatively cheaper.
PEX to pvc fittings type
The specific types of PEX to pvc fittings include various joints, converters and adapters, such as straight headers, elbows, tees, etc. These fittings are designed to ensure a sealed connection between pipes of two dissimilar materials while maintaining the safety and durability of the system. When installing these accessories, specific steps and precautions need to be followed to ensure a secure connection and overall system performance.
