Rothenberger ROLOCK EPT Set, 1/2-5/8-3/4-7/8' - 12521

Features of the Rothenberger ROLOCK EPT Set

The Rothenberger ROLOCK EPT Set (item code 12521) represents a professional solution for processing thin-walled copper, brass, and stainless steel pipes. This kit includes tube expanders in sizes 1/2, 5/8, 3/4, and 7/8 inches, specifically designed to ensure precise and reliable connections in plumbing, heating, and refrigeration systems.

Set Composition

The set includes four different size expander heads (1/2, 5/8, 3/4, and 7/8 inches) compatible with the ROLOCK system, a robust carrying case for transporting and storing the tools, and the EPT (Expansion Press Tool) expansion mechanism. Each component is made from high-quality materials to ensure durability and consistent performance even after repeated use.

Technology and Functionality

The ROLOCK EPT system uses a progressive expansion mechanism that allows the pipe end to be uniformly and controllably flared. This technology enables the creation of joints without the need for welding or brazing, significantly reducing installation times and the risks associated with using open flames. The precision of the expanders ensures that the pipe maintains its structural integrity even after expansion, preventing micro-fractures or irregular deformations.

Practical Advantages

Using the Rothenberger ROLOCK EPT Set offers numerous benefits to professional installers:

• Reduced installation times by up to 50% compared to traditional methods
• Elimination of the need for consumables such as soldering pastes or alloys
• Creation of reliable and perfectly sealed joints
• Ability to work in confined spaces thanks to the compact design
• Compatibility with different types of materials (copper, brass, stainless steel)
• Greater workplace safety due to the absence of open flames
• Professional results even for less experienced installers

Main Applications

This set is used in numerous professional contexts, including:

• Installation and maintenance of residential and commercial plumbing systems
• Construction of heating and air conditioning systems
• Industrial refrigeration systems
• Gas distribution systems (with compatible materials)
• Solar thermal systems
• Drinking water distribution networks

Technical Specifications

The ROLOCK EPT Set is designed to operate on pipes with diameters from 1/2 to 7/8 inches (corresponding to approximately 12.7-22.2 mm). The expansion technology is optimized for thin-walled pipes with thicknesses between 0.8 and 1.5 mm, depending on the material. The expansion mechanism requires minimal effort thanks to the ergonomic lever system, allowing the operation to be completed with one hand in many cases.

Maintenance and Durability

Rothenberger tools are known for their robustness and longevity. To keep the ROLOCK EPT Set in optimal condition, regular cleaning of the expander heads and light lubrication of moving parts are sufficient. The included case effectively protects the tools from dust, moisture, and impacts during transport, extending their useful life. With proper maintenance, this set can accompany professionals for years of intensive work.