68mm pipe fittings are medium-diameter plastic pipe connections widely used in water supply and drainage, agricultural irrigation, cable protection, and industrial fluid transport systems. This size balances flow capacity with installation flexibility, meeting daily drainage and water supply needs without increasing construction difficulty and cost compared to larger diameter pipes.
In the international market, 68mm pipe fittings are commonly found in non-standard customized projects, regional engineering standards, or retrofitting of old systems, with particularly stable demand in parts of Europe, Latin America, and the Middle East.

Typical Applications of 68mm Pipe Fittings
1. Building Water Supply and Drainage Systems
Branch drainage in residential and commercial buildings
Drainage connections for balconies, bathrooms, and equipment rooms
Rainwater diversion and auxiliary drainage systems
Their moderate flow rate avoids blockages and reduces material waste.
2. Agricultural and Landscape Irrigation
Branch water supply in farmland
Branch lines in drip or sprinkler irrigation systems
Greenhouse and orchard irrigation systems
The flexibility of HDPE material allows it to maintain good sealing performance even on uneven terrain.
3. Industrial and Municipal Auxiliary Piping Networks
Cooling water circulation in industrial equipment
Non-high-pressure fluid transportation in chemical or light industry
Auxiliary connections and renovation projects for municipal pipe networks.
Advantages of 68mm PVC Pipe Fittings
PVC (polyvinyl chloride) is one of the most common materials used in 68mm pipe fittings, possessing the following characteristics:
Strong corrosion resistance: Unaffected by acids, alkalis, salts, and humid environments.
Smooth inner wall: Reduces water resistance and lowers the risk of blockage.
Lightweight and easy to install: Significantly reduces labor and installation costs.
Cost controllable: Suitable for large-scale projects.
Reliable adhesion: With PVC pipe adhesive, long-term sealed connections can be achieved.
Therefore, 68mm PVC pipe fittings are particularly common in building drainage, ventilation systems, and low-pressure water supply.

Performance Advantages of HDPE 68mm Pipe Fittings
Compared to PVC, HDPE (high-density polyethylene) 68mm pipe fittings are more suitable for complex working conditions:
Excellent flexibility: adaptable to ground settlement and temperature changes
Strong impact resistance: less prone to cracking in low-temperature environments
Excellent chemical resistance: suitable for industrial and agricultural applications
Multiple connection methods: supports heat fusion, electrofusion, or mechanical connections
Long service life: designed for a lifespan of over 50 years
Therefore, 68mm HDPE pipe fittings are more advantageous in agricultural irrigation, municipal engineering, and outdoor pipe networks.
Pipe fitting types:
68mm Elbow
68mm Tee
68mm Coupling
68mm Reducer
68mm Flange Adapter
Junrui can provide standard and non-standard custom parts according to project requirements.

Why Choose Junrui’s?
As a professional plastic pipe fittings manufacturer, Junrui Polymer Materials possesses significant advantages in the international market:
Stable and Reliable Raw Materials: Utilizing high-quality PVC and HDPE raw materials to ensure dimensional accuracy and long-term performance.
Strict Quality Control System: Products comply with international standards such as ISO, ASTM, and DIN, adapting to diverse market demands.
Extensive Export Experience: Junrui’s pipe fittings are widely exported to Europe, South America, the Middle East, Africa, and other regions.
Flexible Customization and Supply Capabilities: Supporting customization of colors, specifications, packaging, and branding, suitable for both engineering and wholesale customers.
High-Performance Solutions: Providing customers with competitive factory prices while ensuring quality.
Selection Recommendations
Indoor Drainage: PVC pipe fittings are preferred.
Outdoor or Underground Projects: HDPE pipe fittings are recommended.
Long-term Projects or High Safety Requirements: Choose Junrui products that meet international certifications.
Export Projects: Confirm target market standards (DIN / ASTM / ISO).
While 68mm pipe fittings are not the largest size, they are a highly practical medium-diameter solution in practical engineering. Whether made of PVC or HDPE, proper selection can significantly improve system stability and lifespan. With stable quality, extensive experience, and global supply capabilities, Junrui is becoming the preferred solution for an increasing number of international customers.