In building sewage systems, 110mm is one of the most commonly used standard sewage pipe sizes. 110mm black soil pipe fittings, as key connecting components, directly affect the sealing, flow, and service life of the entire drainage system. Currently, the most widely used materials on the market are PE (polyethylene) and PVC (polyvinyl chloride), each with its own characteristics and advantages, and are widely used in residential, commercial, and light industrial sewage systems. This article will focus on a comprehensive analysis of the differences, advantages, application scenarios, and how to select suitable pipe fittings for PE and PVC materials.
What are 110mm black soil pipe fittings?
110mm black soil sewage pipe fittings are plastic pipe fittings used in conjunction with 110mm sewage pipes for connection, diversion, turning, and maintenance in drainage systems. Common types include elbows, tees, crosses, inspection ports, and interface converters. Choosing the right material is crucial for system stability; therefore, understanding the characteristics of PE and PVC is particularly important.
PVC and PE Material Introduction
1. PVC (Polyvinyl Chloride)
PVC is one of the most mainstream materials in the drainage industry. Due to its low cost, high rigidity, and good processability, it is widely used in building sewage pipes and fittings. Black PVC usually contains UV-resistant components, making it suitable for both indoor and outdoor use.
Commonly used in:
Building drainage systems
Sewage risers
Ventilation pipes
Kitchen and bathroom drainage
2. PE (Polyethylene)
PE is a plastic material with high flexibility, impact resistance, and superior corrosion resistance. It is commonly used in buried sewage systems, pressure drainage systems, and drainage fittings in cold regions. Black PE contains carbon black, providing excellent UV resistance.
Commonly used in:
Municipal sewage systems
Underground drainage networks
Long-distance sewage pipes
Comparison of PE and PVC Material Performance
To give you a more intuitive understanding of the differences between the two materials, a detailed comparison is provided below from multiple dimensions.
1. Structural Strength and Rigidity
| Material | Rigidity | Pressure Performance | Application Scenarios |
| PVC | High rigidity, not easy to bend | Suitable for non-pressure drainage systems | Residential and commercial drainage |
| PE | Highly flexible, easy to bend | Better pressure resistance than PVC | Underground sewage and municipal projects |
Analysis:
Analysis:
PVC pipe fittings have high strength and stable shape, suitable for straight drainage structures; PE has good flexibility and is less prone to breakage under external forces when buried.
2. Corrosion Resistance:
Both have good corrosion resistance, but PE is slightly better.
PVC: Good resistance to acids and alkalis, but not suitable for high-temperature media.
PE: Resistant to a variety of chemical solvents, offering more comprehensive corrosion resistance.
3. Temperature Resistance:
PVC operating temperature range: 0～60°C. Not suitable for conveying high-temperature drainage.
PE operating temperature range: -40～60°C. Excellent freeze resistance, more commonly used in cold northern regions.
4. Service Life:
PVC: Approximately 50 years.
PE: Up to 50 years or more (longer under buried conditions).
PE is less prone to breakage due to ground settlement due to its good flexibility.
5. Installation Method:
PVC pipe fittings mostly use rubber ring connections or solvent adhesive bonding. Convenient and stable, but the bonded parts are irreversible.
PE pipe fittings are mainly connected using hot-melt or electrofusion methods.
The connection is more secure and the sealing is better, but specialized equipment is required.
6. Cost Comparison
| Material | Cost | Overall Cost-effectiveness |
| PVC | Lower | Best choice for building drainage systems |
| PE | Slightly higher | Better for municipal and underground sewage systems |
Features of 110mm black PVC sewage pipe fittings
1. High cost performance
PVC is currently the most economical material for sewage pipe fittings.
2. Stable structure and resistant to deformation
It is suitable for installation on the interior walls and riser systems of buildings.
3. The inner wall is smooth and does not accumulate scale for a long time
Improve drainage efficiency and reduce clogging.
4. Easy to install and convenient to maintain
Especially the connection method of the rubber ring is both firm and easy to disassemble.
5. Wide adaptability
A wide variety of elbows, tees and inspection ports are available, suitable for various drainage layouts.
Application scenario comparison: How to Choose PE or PVC?
1. Indoor drainage system – PVC is recommended
Riser system
Toilet sewage
Washbasin and bathroom drainage
PVC is highly rigid, has a neat appearance and offers flexible installation methods.
2. Outdoor or underground sewage systems – PE is recommended
Underground sewage main pipe
Municipal drainage
Long-distance underground transportation
PE has strong impact resistance and anti-deformation ability, making it the best choice for underground systems.
3. High-temperature drainage environment – PVC is not recommended
If hot water is discharged (such as in commercial kitchens), it is safer to choose PE or PP.
4. Projects with limited budgets – PVC is preferred
PVC has a low cost and a very high cost performance, making it very suitable for residential sewage discharge.
How to choose high-quality 110mm black sewage pipe fittings?
1. Check if the material is virgin
Virgin PVC or PE has higher strength and is less prone to cracking.
2. Check the quality of the socket and rubber ring
Sealing performance is the most important indicator of sewage pipe fittings.
3. Select products that meet the standards
Common standards include:
BS EN 1329 (PVC Drainage System)
BS EN 1519 or ISO 4427 (PE sewage System)
4. Seek experienced suppliers
Especially for PE electrofusion or hot-melt systems, professional support is required. Recommend Junrui Plastic pipe fittings manufacturer, which has over twenty years of manufacturing and export experience.
110mm black soil pipe fittings are indispensable connecting components in modern building sewage systems, and the choice of PE and PVC materials directly determines the stability and service life of the pipe system.
PVC pipe fittings – suitable for indoor drainage in buildings, with high cost performance and easy installation
PE pipe fittings – more suitable for underground, municipal and harsh environments, with strong flexibility and better durability
Selecting appropriate materials based on engineering requirements, budget, installation location and usage environment can significantly enhance the reliability and overall performance of the sewage discharge system.
