RESTRAINED COUPLING PN10/PN16 BIG SIZE
Restrained coupling for large HDPE pipes, compliant with EN545/EN12842 standard.
Description
RESTRAINED COUPLING PN10/PN16 BIG SIZE
Product Overview
The Restrained Coupling PN10/PN16 Big Size is a specialized connection fitting designed for large diameter HDPE pipes. This coupling provides a secure, leak-proof connection between HDPE pipes for sizes ranging from DN300 to DN1200, making it ideal for major infrastructure and industrial applications requiring reliable joint integrity.
Key Features
- Large Size Range: Designed for DN300 to DN1200 pipe connections
- Dual Pressure Rating: Suitable for both PN10 and PN16 pressure systems
- Advanced Grip System: Galvanized cast iron gripper for enhanced connection strength
- HDPE Specific Design: Engineered specifically for high-density polyethylene pipe connections
- Angular Deflection: ±4° flexibility for installation alignment
- Standard Compliance: Meets EN545/EN12842 standard requirements
- WRAS Approved: Available upon request for potable water applications
Technical Specifications
| Standard | EN545/EN12842 |
| Coating Standard | EN30677 |
| Test Standard | EN12266-1 |
| Working Pressure | PN10/PN16 |
| Size Range | DN300 to DN1200 |
| Connection Type | HDPE pipe |
| Angular Deflection | ±4° |
| Suitable For | Potable water, neutral liquids, sewage |
| Gasket Material | EPDM |
| Grip Ring Material | Galvanized cast iron |
Temperature Specifications
Operating Temperature Ranges
- EPDM Gasket: -10°C to 120°C
- NBR Gasket: -10°C to 82°C
Material Components
The Restrained Coupling consists of 6 main components:
- End Ring: Ductile iron construction for maximum strength and durability
- Body: Ductile iron for structural integrity
- Gripper: Galvanized cast iron for enhanced grip strength
- Gripper Bolt: Carbon steel for secure connection
- Ring Bolt: Carbon steel for bolt retention
- Gasket: EPDM material for superior sealing performance
Additional Material Options
Bolt Options
- Carbon Steel: Grade 4.8/6.8/8.8 with galvanization/dacromet/teflon coating
- Stainless Steel: SS304/SS316/SS316L/A2/A4 options available
Coating Options
- FBE Coating: Fusion Bonded Epoxy coating available
- Nylon 11 Coating: Advanced protective coating option
Applications
- Major Infrastructure: Large-scale water distribution and sewage systems
- Industrial Applications: High-capacity process piping systems
- Municipal Projects: City-wide water and wastewater networks
- HDPE Pipe Installations: Connection points in large diameter polyethylene systems
- Pressure Systems: PN10 and PN16 pressure applications for large volumes
- Utility Connections: Interface between large HDPE pipes and equipment
Installation Notes
- Ensure HDPE pipe is properly prepared and cleaned before installation
- Follow manufacturer guidelines for proper gripper installation
- Use appropriate torque values for bolt tightening
- Verify pressure rating compatibility with system requirements
- Test connection integrity before system pressurization
- Consider angular deflection limits during installation
- Account for thermal expansion in large diameter applications
Quality Assurance
All Restrained Couplings undergo rigorous testing according to EN12266-1 standards to ensure:
- Pressure integrity at rated working pressures
- Leak-tight performance under various conditions
- Mechanical strength and durability for large diameter applications
- Compliance with international standards
- WRAS approval available for potable water applications
Please refer to the dimensions table below for specific size and bolt configuration details.
Dimensions Table (MM)
Note: Please note dimensions may vary at our discretion. All measurements are in millimeters (MM).
Bolt Configuration Details
Large Size Bolt Pattern: All sizes use M16 bolts with varying quantities (6-22 bolts) and different lengths based on size requirements. MxL configuration provides bolt diameter, length, and quantity for enhanced structural integrity in large diameter applications.
Size Range Information
Large Size Applications: This coupling is specifically designed for large-sized HDPE pipe applications (DN300-DN1200), providing optimal performance for major infrastructure projects, industrial applications, and municipal systems requiring reliable joint integrity for high-capacity systems.
Angular Deflection Capability
±4° Angular Deflection: This coupling provides ±4° angular deflection capability, allowing for installation flexibility and accommodating minor alignment variations in large diameter pipe systems while maintaining joint integrity.
Additional information
| Coupling Type | Restrained Coupling Big Size |
|---|---|
| Standard | EN545/EN12842 |
| Coating Standard | EN30677 |
| Test Standard | EN12266-1 |
| Working Pressure | PN10/PN16 |
| Size Range | DN300 to DN1200 |
| Connection Type | HDPE pipe |
| Angular Deflection | ±4° |
| Suitable For | Potable water, neutral liquids, sewage |
| Gasket Material | EPDM |
| Grip Ring Material | Galvanized cast iron |
