CaseCore End Seals
The CaseCore End Seals range is designed to protect pipeline penetrations and casing pipe systems from water, dirt, debris and environmental contaminants. Engineered for civil, water, wastewater, industrial and utility infrastructure, the range provides reliable sealing solutions for both wall penetrations and casing pipe terminations, helping extend pipeline service life and reduce the risk of corrosion.
Manufactured from premium EPDM and neoprene elastomers, CaseCore End Seals are designed for both new construction and retrofit applications, delivering dependable long-term sealing performance while accommodating a wide range of pipe materials, pipe sizes and installation conditions.
Whether you need a flexible wall penetration seal to accommodate pipe movement or an elastomeric casing end seal to protect the annular space, the CaseCore End Seals range provides the right solution for your project.
Why Choose CaseCore End Seals?
The CaseCore End Seals range has been developed to deliver reliable sealing performance while simplifying installation and protecting valuable pipeline assets.
Key Benefits
- Protects pipe penetrations against water, dirt and moisture ingress
- Helps reduce the risk of corrosion and premature pipeline deterioration
- Suitable for both new construction and retrofit installations
- Manufactured from premium EPDM and neoprene elastomers
- Designed for long-term durability in underground environments
- Accommodates pipe movement and structural settlement
- Fast and straightforward installation
- Suitable for metallic and plastic pipe systems
- Available in multiple configurations for different applications
CaseCore Compenseal
Ø 16-90 mm
The CaseCore Compenseal is a flexible EPDM sealing collar designed for pipe penetrations where movement is expected. It accommodates axial and radial movement caused by thermal expansion, settlement and structural movement while maintaining a reliable watertight seal.
Ideal for pre-insulated pipelines and building penetrations, the Wall Flange Seal provides long-term waterproof protection for walls, floors and ceilings.
Key Applications
- Pre-insulated pipe systems
- Building wall penetrations
- Floor and ceiling penetrations
- Concrete structures
- Water and wastewater infrastructure
- Industrial pipelines
| Carrier Pipe Outside Diameter | 75 mm – 800 mm |
| Core Hole Diameter | 150 mm – 900 mm |
| Material | EPDM Elastomer |
| Pressure Plate | V2A Stainless Steel |
| Water Pressure Rating | Up to 1.0 bar |
| Axial Pipe Movement | ±40 mm |
| Radial Pipe Movement | ±40 mm |
| Subsidence / Sag Compensation | Up to 40 mm* |
| Operating Temperature | Up to +90°C |
| Recommended Installation Temperature | +5°C to +35°C |
| Material Thickness | 8 mm ±1 mm |
| Hardness | 60 ±5 Shore A |
| Elongation at Break | ≥400% |
CaseCore End Seal Closed and Open
Ø 16-90 mm
The CaseCore End Seal is an elastomeric casing end seal designed to close the annular space between the carrier pipe and casing pipe, preventing the ingress of water, soil and debris while helping protect the carrier pipe against corrosion.
Available in two configurations to suit both new installations and retrofit projects.
Available Variants
- CaseCore End Seal Closed – A one-piece conical end seal designed for new pipeline installations where the seal can be installed before the carrier pipe is fully assembled.
- CaseCore End Seal Open – A split conical end seal designed for retrofit applications, allowing installation around existing pipelines without disconnecting the carrier pipe.
Key Application
The CaseCore End Seals range is suitable for a wide range of infrastructure projects, including:
- Water transmission pipelines
- Wastewater and sewer networks
- Stormwater drainage systems
- Gas pipelines
- Utility crossings
- Road and railway crossings
- Horizontal Directional Drilling (HDD)
- Building wall penetrations
- Industrial process pipelines
- Pump stations
- Water treatment facilities
- Civil and infrastructure projects
| Carrier Pipe Diameter | DN 25 – DN 1300 |
| Casing Pipe Diameter | DN 37.5 – DN 3000 |
| Seal Type | CaseCore End Seal Closed: One-Piece Conical Seal CaseCore End Seal Open: Split Conical Seal |
| Material | Neoprene Rubber |
| Material Thickness | 2 mm |
| Fastening System | Stainless Steel Straps |
| Retrofit Installation | CaseCore End Seal Closed: No CaseCore End Seal Open: Yes |
| New Installations | Yes |
| Operating Temperature | -30°C to +70°C |
| Optional Material | +5°C to +35°C |
| Material Thickness | CaseCore End Seal Closed: Silicone Rubber CaseCore End Seal Open: N/A |
| Silicone Temperature Range | CaseCore End Seal Closed: -50°C to +200°C CaseCore End Seal Open: N/A |
CaseCore ASTM End Seal
CaseCore ASTM End Seal closes the gap between a casing pipe and the carrier pipe(s) running through it, keeping groundwater, silt and debris out of casing crossings and multi-service penetrations. Made from soft PVC across a standard range of DN combinations, from 50 x 200mm through to 1050 x 1400mm (other dimensions on request), each seal is fabricated to order rather than held as stock. To quote or order, we need five measurements: casing OD, casing wall thickness, spacer height, carrier pipe OD(s), and the position of each carrier pipe in the casing. Standard colour is red, with stainless steel tightening straps for the casing and each carrier pipe opening. Where a crossing faces higher external water pressure, ask about the KMR configuration, which adds a sealing compound and double straps for extra tightness.
Key Application
- Casing crossings under roads, rail lines and waterways
- Horizontal directional drilled (HDD) casing installations
- Multi-service casing penetrations, e.g. a water main and cable ducts sharing one casing
- Retrofit sealing of existing casing/carrier pipe systems
- Water, wastewater and utility infrastructure where carrier pipes pass through a protective casing
| Property | Test Method | Technical Data |
| Material | – | Soft PVC |
| Colour | – | Red (Standard) |
| Thickness | – | 5 mm ± 0.30 mm |
| Cold-break temperature | DIN EN 1876-2 | approx. -35°C |
| Working Temperature Range | JEDI 35.008 / 35.010 | approx. -5°C to +60°C |
| Water absorption | DIN 53472 | 0.1% – 1% |
| Elongation at break | ISO 527 | ≥ 360% |
| Tensile strength | ISO 527 | ≥ 18 N/mm² |
| Tear growth resistance | DIN 53515 | ≥ 5 N/mm |
| Hardness (Shore A) | DIN 53505 | 77 ± 3 |
| Fire performance | DIN 53382 / DIN 4102-B2 | Normally inflammable (B2), self-extinguishing edge flame |
| REACH | – | Conforms to (EC) No. 1272/2008 |
| RoHS | 2011/65/EU | Raw materials meet supplier spec JEDI 35.012 |
| Composition | – | PAH-free, silicone-free |
CaseCore AKT/AWM End Seal
CaseCore AKT/AWM End Seal is moulded from high-quality EPDM rubber and provides a pressure-less seal of the annular space between a casing pipe and the carrier pipe running through it, keeping the casing dry and protecting the carrier pipe from corrosion. Its conic profile is field-cut on site, so a single seal size fits a range of carrier pipe diameters rather than needing an exact factory match. Just seven standard sizes cover carrier pipes up to 800mm OD, keeping stockholding simple. The AWM version ships in a compact, wave-shaped form for easier transport and storage, then unfolds to its full conic sealing shape on installation. Fitting is straightforward, no special tools, just the supplied adjustable stainless steel straps. Rated across a wide temperature band of -40°C to +120°C, and produced under a DIN EN ISO 9001:2015 certified quality system. Not designed for pressure-tight applications, where the annular space itself needs to hold pressure, use a pressure-tight seal type such as KMR instead.
Key Application
- Cased pipeline crossings: road, rail or waterway crossings where a carrier pipe runs inside a casing pipe
- Sealing the annular space at the casing pipe end to stop dirt and moisture reaching the carrier pipe, the main corrosion risk in these installations
- New pipeline builds
- Retrofit work on existing casing pipe
- Not suited to applications where the annular space itself needs to hold pressure, that calls for a pressure-tight seal type such as KMR
| Material | Moulded EPDM rubber |
| Function | DN 37.5 – DN 3000 |
| Profile | Conic; AWM sizes supplied wave-shaped, unfolding to conic on installation |
| Carrier pipe range | Up to 800 mm OD |
| Casing pipe range | Approx. 135 mm OD (AKT, smallest) to 810 mm OD (AWM, largest) |
| Operating temperature | -40°C to +120°C |
| Fixing method | Two adjustable stainless steel straps per seal (AWM), sized for largest and smallest carrier pipe diameters |
| Pressure rating | Pressure-less only, not for pressure-tight annular spaces |
| Standard sizes available | 7 |
| Manufacturing quality | Produced under a DIN EN ISO 9001:2015 certified quality system |
Data Sheets and Installation Guides
