Hydraulic structures such as dams, hydroelectric power plants, and navigation locks rely on the reliability of fabricated gates. These critical components ensure not only the safety of installations but also their performance and long term durability.
A member of the Origin Seal Group, PXL has established itself over many years as a leading player in the field of sealing solutions. Drawing on its expertise, the company develops and manufactures robust solutions tailored to demanding environments. Among them is the HydroRubber EPDM compound, specifically designed for gate applications and compliant with DIN 19704 standards.
1. Sealing challenges in fabricated gates
Segment gates, slide gates, wagon gates, roof gates, flap gates, and stop logs require high-performance sealing systems. Although sometimes perceived as secondary components because they are extruded profiles, these seals actually play a critical role:
- They must withstand weather exposure and pressure variations
- They are exposed to abrasive elements (sediment, stones, driftwood, etc.)
- They can be difficult to replace, depending on the gate type
- Joint areas (bonded connections) are sensitive points that may lead to leaks or tearing
To address these constraints, PXL offers a comprehensive range combining specialized materials, adapted profiles, and turnkey solutions.
2. A complete range of profiles for fabricated gates
To meet the diverse needs of operators and manufacturers, PXL provides a wide range of extruded profiles:
- “Music note” profiles (solid or hollow)
- Flat strips
- Angles
- Custom designed special profiles
These profiles are manufactured using an extrusion process, with tolerances compliant with ISO 3302-1 E2 standards. The company operates a broad range of tooling, enabling the production of both standard profiles and fully customized solutions designed for specific projects.
3. HydroRubber: An EPDM compound designed for gates
Material selection is a key factor in the performance of fabricated gate seals. To meet the sector’s demanding requirements, PXL developed HydroRubber, a specially formulated EPDM compound.
Key benefits include:
- Compliance with DIN 19704 requirements
- Excellent durability in immersion and outdoor environments (high ozone resistance)
- Reduced environmental impact compared to chlorinated polychloroprene compounds previously used
- Very strong mechanical resistance (tensile strength and tear resistance)
This material has been validated through extensive laboratory testing and is now considered a benchmark solution for hydroelectric industry stakeholders.
4. Corner blocks, frames, and bonding processes
Beyond straight-length profiles, PXL also supplies molded corner blocks, semi-finished frames, and fully assembled ready-to-install frames.
- Molded corner blocks: eliminate 45° cold bonding, which is often fragile, and ensure improved mechanical strength
- Half-frames or complete frames: simplify installation, reduce on site bonding operations, and enhance overall reliability
- HLB (Hot Layer Bound) process: a proprietary hot bonding technology developed by PXL, delivering stronger joints than conventional adhesive bonding
These solutions help optimize installation reliability while simplifying on site implementation.
5. Expertise and on site services
Support extends beyond product supply. PXL teams also provide on site services to:
- Analyze existing gate configurations
- Adapt frames and seals to real operating conditions
- Perform cutting to length, bonding, and drilling operations
- Adjust specific components for perfect compatibility with the structure
This hands on expertise ensures continuity between workshop design and real world operating conditions.
A sustainable, turnkey solution
By choosing solutions developed by PXL, a member of the Origin Seal Group, hydraulic structure operators benefit from reliable, environmentally responsible sealing systems designed for long term performance.
Through its integrated capabilities in design, manufacturing, and on site intervention, PXL delivers more than just seals it provides a comprehensive solution that enhances safety, saves time, and reduces the risk of leakage.