Flexible Sealing for Reliable Pipe Penetrations
Hauff-Technik GKD is a modular sealing solution for new or already installed pipes passing through core drill holes or wall sleeves. Its link-based construction adapts to different pipe diameters and opening sizes, making the Modular Pipe Seal suitable for a wide range of pipe-entry conditions.
The system forms a gastight and watertight barrier around the carrier pipe and can also provide radon protection. With EPDM or NBR rubber options, stainless-steel V4A fasteners and glass-fibre-reinforced polyamide pressure plates, the modular seal combines flexible sizing with durable construction for demanding building and infrastructure penetrations.
Integrated installation control on applicable GKD sizes eliminates the need for a torque wrench, while moulded nuts prevent loose components and no retightening is required after installation. These characteristics simplify installation of a pipe penetration seal and help create a secure pipe wall penetration seal in both new construction and retrofit situations.
Dutco supplies modular pipe seals for sealing pipes in core drill holes and wall sleeves with watertight and gastight protection in GCC. As a Modular pipe seal supplier Dubai and Pipe entry seal supplier UAE, Dutco supports projects requiring dependable sealing solutions for building and utility penetrations.
Flexible Pipe Sealing Across Different Opening Sizes
- Modular Link Construction – Individual sealing links are combined according to the carrier-pipe diameter and wall opening.
- Wide Pipe Compatibility – Suitable for different pipe types and diameter combinations.
- Core Drill Hole Installation – Provides a practical penetration seal around pipes installed through drilled wall openings.
- Wall Sleeve Compatibility – Can be installed around pipes passing through suitable wall sleeves.
- Retrofit Sealing – Suitable for sealing pipes that are already installed.
- Adaptable Sealing Arrangement – Provides a flexible pipe sealing system where pipe and opening dimensions vary from project to project.
Installation Control and Long-Term Sealing Performance
- Integrated Installation Control – Applicable GKD variants can be installed without a torque wrench.
- No Retightening Required – Helps simplify long-term installation requirements after the seal has been fitted.
- Moulded Nuts – Prevent loose components during handling and installation on applicable variants.
- Watertight Protection – Creates a waterproof pipe seal around the penetration.
- Gastight Performance – Helps restrict gas transfer through the pipe-entry opening.
- Radon-Proof Construction – The product is tested for radon tightness.
Types
Hauff-Technik offers the GKD range in different link sizes and in both EPDM and NBR rubber versions, allowing the appropriate configuration to be selected according to annular space, carrier-pipe diameter and required wall thickness.
GKD EPDM Modular Seals
EPDM versions are available across multiple GKD link sizes, including GKD200, GKD275, GKD300, GKD315, GKD325, GKD340, GKD360, GKD400 and GKD410. The available configurations cover different annular spaces and carrier-pipe outside diameters.
- Suitable for a broad range of pipe diameters
- Multiple link sizes for varying annular spaces
- Provides a configurable pipe penetration sealing system UAE projects can match to individual wall-opening requirements
GKD NBR Modular Seals
NBR versions are offered across the same principal GKD size range, providing an alternative rubber material where the installation conditions call for NBR compatibility.
- Available in multiple GKD link sizes
- Supports varying carrier-pipe dimensions
- Provides a configurable modular seal option for different project conditions
GKD200 & GKD275
These smaller link sizes are intended for relatively narrow annular spaces. Hauff-Technik notes that, because of their smaller pressure plates, these versions do not use moulded nuts or integrated installation control.
- Suitable for smaller annular gaps
- Available in EPDM and NBR versions
- Useful where compact pipe penetration seal dimensions are required
GKD300 to GKD410
The larger GKD link sizes accommodate progressively wider annular spaces and broader carrier-pipe diameter ranges. Depending on the model, carrier pipes can extend to large outside diameters, including configurations up to 1230 mm.
- Suitable for medium to large pipe penetrations
- Multiple sizes simplify selection for different wall openings
- Supports a scalable pipe wall penetration seal approach across infrastructure and building projects
Standout Features & Benefits
Watertight & Gastight Protection
- Helps prevent water from passing through the pipe-entry annular space
- Provides gastight sealing around installed pipes
- Functions as a dependable waterproof pipe seal for suitable wall penetrations
Faster Installation
- Integrated installation control removes the need for a torque wrench on applicable sizes
- No retightening is required after installation
- Supports an efficient pipe sealing system with fewer installation steps
Flexible Retrofit Capability
- Can be fitted around already installed pipes
- Modular links adapt to the required pipe and opening dimensions
- Provides an adaptable penetration seal for retrofit and refurbishment work
Durable Material Construction
- EPDM or NBR rubber sealing elements
- V4A stainless-steel screws and nuts
- Glass-fibre-reinforced polyamide pressure plates
Project-Specific Size Selection
- Multiple GKD variants cover different annular spaces and pipe diameters
- Suitable configuration can be selected according to pipe OD and opening ID
- Dutco can support requirements for a Pipe entry seal supplier UAE solution across building and utility projects
Application Areas
Core Drill Hole Pipe Entries
- Seals the annular space between a pipe and a drilled wall opening
- Suitable for new and previously installed pipes
- Provides a configurable pipe penetration sealing system UAE projects can use for controlled pipe entries
Wall Sleeve Penetrations
- Suitable for pipes routed through compatible wall sleeves
- Creates watertight and gastight separation at the penetration
- Supports building and utility projects requiring a reliable Modular Pipe Seal
Waterproof Concrete Structures
- Suitable for waterproof-concrete stress classes 1 and 2
- Helps protect pipe-entry points in concrete walls
- Supports infrastructure where penetration sealing is critical to maintaining the wall barrier
Utility & Infrastructure Pipe Entries
- Suitable for different pipe types and diameter combinations
- Useful for water, utility and technical-service penetrations through walls
- Dutco supports project requirements as a Modular pipe seal supplier Dubai for GCC infrastructure and building applications
Retrofit & Refurbishment Projects
- Can be installed around existing pipes without requiring a completely new pipe entry
- Different link sizes accommodate varying annular spaces
- Helps restore controlled sealing around existing wall penetrations.
