Compression End Cap
Polypropylene compression end cap for reliable temporary or permanent blind termination of polyethylene pipelines in pressurized irrigation and water systems.
- Fast, absolute watertight blind termination for pressurized polyethylene lines
- Readily removable for scheduled line flushing or future pipeline extensions
- Molded from resilient polypropylene resisting soil corrosion and direct sunlight
- Fitted with an anti-pull-out grip ring resisting severe dead-end hydrostatic thrust
- Fast manual assembly on site without thermal fusing tools or electric power
Key Specifications
- Product code
- P047
- Reference standard
- ISO 17885
- Material & grade
- PP
- Outside diameter
- 20–125 mm
- Joint type
- Compression
- Unit of sale
- Piece
- Applications
- Drinking water supply, Irrigation & agriculture
- Dimensional options
- 10 rows in the specification table
Role of compression end caps in pipeline management
The compression end cap, frequently termed a pipe plug or blind cap, seals the terminal end of a polyethylene line at field boundaries, distribution manifolds, or valve vaults. Because it can be demounted without damaging the pipe, it serves as a vital cleanout point. Operators frequently uncap terminal ends to flush accumulated silt, sand, and algae before seasonal commissioning.
Under ISO 17885 protocols, pipeline terminations bear substantial static thrust and surge shock. These end caps feature reinforced internal grip rings and thick-walled end domes designed specifically to retain pipe ends securely under sustained hydrostatic pressure without slippage.
Sizing overview and operational guidelines
Compression end caps are typically produced in outside diameters spanning 20 to 125 mm with a PN10 pressure rating, covering small lateral ends up to main distribution trunks. The selected nominal size must correspond exactly to the pipe outside diameter (od_mm).
To ensure a hermetic seal, ensure a clean, square pipe cut and insert the pipe completely past the O-ring seal to the internal stop before wrench-tightening the cap nut. Submit your project requirements through the inquiry portal to receive an official proforma quotation.
Compression End Cap — Technical Specifications
Wall thickness and weight are calculated from the standard series and are approximate; final values are confirmed in the quotation.
| Outer Diameter (mm) |
|---|
| 20 |
| 25 |
| 32 |
| 40 |
| 50 |
| 63 |
| 75 |
| 90 |
| 110 |
| 125 |
Compression End Cap — FAQ
What diameters are available for compression end caps?
These end caps are typically supplied in metric outside diameters from 20 up to 125 mm to match standard PE pipe.
Does removing the end cap damage the polyethylene pipe?
No, unscrewing the compression nut releases the grip ring cleanly without damaging the pipe wall, enabling repeated re-use.
What maximum hydraulic pressure can this cap withstand?
This fitting is engineered and tested for a standard maximum working pressure of 10 bar (PN10) in water systems.
Can this end cap withstand agricultural chemical fertilizers?
Yes, the virgin polypropylene body and elastomeric seals resist degradation from typical dissolved farm fertilizers and agrochemicals.
