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HDPE Spigot Collar
Gamson manufactures high-performance HDPE Spigot Collars, also commonly referred to as Stub Ends. These fittings are the essential component used in conjunction with a metallic backing ring to create a flanged connection. The "spigot" refers to the long or short cylindrical end that is fused to the HDPE pipe, while the "collar" is the thickened shoulder that provides a sealing surface and a mechanical stop for the backing ring.
Key Features
- Secure Flanged Interface: Provides a flat, serrated, or grooved sealing face that, when paired with a gasket, creates a high-pressure seal against valves, pumps, or other flanged pipes.
- Moulded Structural Strength: Injection-moulded as a single piece to ensure the shoulder of the collar can withstand the high torque and compressive forces exerted by flange bolts.
- PE100 High-Density Resin: Manufactured from virgin PE100 material, offering excellent long-term hydrostatic strength and resistance to chemical corrosion.
- SDR Matching: Available in various Standard Dimension Ratios (SDR 11, 13.6, 17, 21, 26) to ensure a perfect internal diameter match with the pipe, preventing flow restriction or turbulence.
- Versatile Joining: The spigot end is compatible with both Butt Fusion and Electrofusion (provided the neck is a Long Spigot version).
Technical Specifications
| Material Grade | PE 100 / PE 80 |
|---|---|
| Type | Short Spigot (Butt Fusion) or Long Spigot (Electrofusion) |
| Pressure Rating | PN 6, PN 10, PN 12.5, PN 16 |
| Face Design | Smooth or Serrated (for better gasket grip) |
| Size Range | 20 mm to 1000 mm OD |
| Standard Compliance | ISO 4427, EN 12201, DIN 16963 |
Primary Applications
- Pump Stations: Transitioning from HDPE suction/delivery lines to the flanged inlets/outlets of water pumps.
- Valve Installations: Integrating flanged gate valves, butterfly valves, or non-return valves into an HDPE pipeline.
- Pipe Transitions: Connecting HDPE sections to existing ductile iron (DI), cast iron (CI), or steel flanged networks.
- Tank Connections: Providing a bolting point for HDPE pipes entering or exiting storage tanks.
- Dismantling Points: Creating removable sections in a pipeline for periodic maintenance or cleaning.
