Explore PVC, CPVC, PPR, and PP fittings for plumbing, drainage, and industrial piping solutions. Use corrosion-resistant pipes, easy pipe installation, and hot water pipes for all needs. Shop SANVO now!
Plastic pipe fittings play a key role in modern plumbing systems, whether for home water supply, industrial transportation, or agricultural irrigation; PVC, CPVC, PPR, and PP fittings are popular due to their unique performance. Now that we have in-depth knowledge of four plastic pipe fitting characteristics, applications, and selection techniques, we hope you build a high-efficiency plumbing pipe system!
The plastic pipe fitting is a pipe fitting of polymer material for connecting corner, split, or closed piping systems. Compared with metal pipe fittings, they are light, corrosion-resistant, and easy to install. Here are the profiles of the four "family members" :
The most common type is PVC pipe and fittings, known for their low cost and corrosion resistance, used in cold water and drainage systems.
CPVC plumbing fittings have higher high-temperature resistance and are suitable for hot water piping and industrial applications.
PPR pipe fittings are anti-hot and anti-pressure and are commonly used in hot water pipes and heating systems.
PP fittings are light and durable for industrial piping and effluent treatment.
We use a comparison table to "PK" their performance and make you directly understand four pipe fitting features:
| Types of pipes | temperature range | corrosion resistance | price |
| PVC Pipe | 0-60 degrees | Resistant to acid, alkali, salt water | low |
| CPVC Pipe | 0-90 degrees | Chemical resistance | medium |
| PPR Pipe | -20-95 degrees | Acid-base resistance | Medium - high |
| PP Pipe | -10-80 degrees | Chemical resistance | medium |
Last, if you need a corrosion-resistant pipe for cold water or drain-away water, PVC plumbing fittings are the cost-effective king.
CPVC pipe and PPR plumbing fittings are more suitable for hot water or high-temperature environments. In particular, PPR pipe fittings demonstrate excellent performance in hot water applications.
The chemical corrosion resistance of PP fittings is enhanced when used in chemical or effluent treatment applications.
The installation methods for different plastic pipe fittings vary. Here are some installation tips for each type of plastic water fitting:
Cut the pipe to the desired length with a PVC cutter;
Apply PVC glue to the pipe end and inside the joint;
Quickly insert and rotate a 1/4 turn to ensure uniform bonding, and let it stand for 24 hours to cure.
Sand the ends of the PVC tube before installation to improve adhesion.
Clean pipe ends and joints to ensure no oil stains;
Use CPVC glue, apply, and insert quickly;
Fix it for 10 seconds and wait for a water test after 12 hours.
Avoid installation in a low-temperature environment, where the PVC glue will cure slowly.
Use a hot melt machine to heat the PPR pipes and fittings;
Quickly insert after heating, hold still for 5 seconds, and connect after cooling;
Check whether the connection is smooth to avoid water leakage.
Control the time during hot melting and avoid more long, leading to the deformation of pipe fittings.
If using a hot melt connection, the procedure is similar to PPR pipes;
If the mechanical connection is used (such as thread or clamp), make sure it is tight and use sealing tape;
Perform a pressure test after installation to ensure no leakage.
It is better to install supporting parts to prevent pipeline sagging when installing chemical pipelines.
You need to notice some points when you select plastic plumbing fittings:
Cold water uses PVC, hot water chooses CPVC or PPR, and industry uses PP;
Verify that the pipe fitting matches with pipe sizes (such as 1/2 to 4 inch) to avoid incompatibility;
Select the proper temperature resistance range according to the applications;
Choose the brand according to international standards (ASTM and ISO), and we are a top manufacturer that ensures reliable product quality;
PVC is the most cost-effective option, while PPR and PP are slightly more expensive but offer better performance.
Q1: Can PVC and CPVC pipe fittings be mixed?
A: We do not recommend mixing them. The PVC and CPVC glues differ, which may weaken bonding and increase the risk of water leakage. We recommend using tube fittings and glue of the same material.
Q2: Is PPR pipe fitting suitable for outdoor use?
A: PPR is resistant to temperature and pressure, but its ability to resist ultraviolet light is weak, and long-term exposure may age it. Recommend installing a cover or choosing a UV-resistant model for outdoor use.
Q3: Can PP fittings be used for drinking water?
A: Yes, but you must choose a food-grade PP plastic pipe that is not toxic, tasteless, and up to drinking water standards.
Through this guideline, we understand the economy of PVC pipe fittings, the high-temperature resistance of CPVC pipe fittings, the hot water applicability of PPR pipe fittings, and the chemical durability of the best PP fittings. Whether it is the best plumbing pipe fittings or industrial piping solutions, these four plastic fittings can meet different needs. Hebei Sanwo provides a full range of plastic pipe fittings, quality in line with international standards, simple installation, and cost-effectiveness. Buy now and create your easy pipe installation!
