External hydraulic key with PROTEX deformation seams blue, 20 m.p.

Material: plasticized polyvinyl chloride (PVC-p)
Color: Blue
Packaging: rolls of 20 m.
Roll length deviation, m: no more than ± 0.5
Dimensional deviations: according to KD
Shore hardness, A: 70 ± 5
Density, g / cm3: ≈ 1.4
Tensile strength, MPa: ≥10 (DIN 53455)
Elongation at break,%: ≥ 275
Temperature resistance, ° C: from -35 ° C to 70 ° C
Chemical resistance:

- from constant exposure to water and sewage;
- from short-term exposure to inorganic alkalis and acids of low concentration, mineral oils.

UV resistance: not stable
Service life: 25 years

Installation procedure and rules:

• The hydraulic key is installed in the design position, so that the middle of the hydraulic key is in the center of the expected deformation seam.
• Fastening is carried out directly to the formwork.
• Holes for fastening are allowed to be made only in the extreme zone of the hydraulic dowel, behind the extreme anchor.
• The fastening step is 200-300 mm, symmetrically on both sides.
• Additional fastening is carried out in the same way to the reinforcing frame with a knitting wire.
• The spigot is connected by welding, by heating the ends of the spigot in a special conductor (for each spigot – an individual conductor) or with the help of an industrial hair dryer or a flat Tena.
• The adhesion temperature is about 200 ° C (chosen experimentally).
• To connect the keys by the "cold" method, glue is used, for example, a one-component pasty glue based on the silane-modified InnoElast polymer.

The unique ND 320/35 PVC external hydraulic dowel for PROTEX blue expansion joints, 20 meters long, is an ideal solution for sealing and waterproofing movable joints during the construction of buildings and structures. Specially designed for use in monolithic structures, this hydraulic key is easily mounted directly on the formwork sheet, providing a reliable connection to the concrete structure.

Advantages of the hydraulic key ND 320/35:

• Reliable sealing in the concrete structure: thanks to its special structure and unique properties, this hydro-pin ensures a strong and reliable connection with concrete, preventing the penetration of moisture into the structure.
• Flexible adaptation to deformations: the presence of a deformed section allows the hydraulic wedge to accept deformations of reinforced concrete structures without breaking the tightness, ensuring the durability and resistance of structures to external influences.
• Universal application: this hydraulic key can be used for sealing between two concrete structures, as well as in special structures with high requirements for tightness.
• High resistance to water pressure: ND 320/35 PVC water plug withstands high water pressure, both from the inside and outside, providing reliable waterproofing and protection of structures.
• Simple installation: the hydro-shponka is supplied in convenient rolls of 20 meters long, which simplifies the installation process and saves time.

Application of hydraulic key ND 320/35:

• Monolithic construction: foundations, underground parking lots, tunnels, canals and other buildings.
• Hydrotechnical structures: reservoirs, canals, dams, pools and other Hydrotechnical objects
• Waterproofing of seams of foundations, foundations, tunnels and multi-level parking lots.

Choose ND 320/35 PVC waterproofing for reliable sealing and waterproofing of your construction projects.

How to install a hydraulic key?

• The hydraulic dowel is installed in the design position so that the middle of the hydraulic dowel is in the center of the intended seam.
• Fastening is carried out directly to the formwork.
• Holes for fastening are allowed to be made only in the extreme zone of the hydraulic dowel, behind the extreme anchor.
• The fastening step is 200-300 mm, symmetrically on both sides.
• Additional fastening is carried out in the same way to the reinforcing frame with a knitting wire.
• The spigot is connected by welding, by heating the ends of the spigot in a special conductor (for each spigot – an individual conductor) or with the help of an industrial hair dryer or a flat Tena.
• The temperature of adhesion is about 200 ° C (chosen experimentally).
• To connect the pins by the "cold" method, glue is used, for example, a one-component pasty glue based on
• silane-modified Innoellast polymer.

ND 320/35 PVC external hydraulic plug for expansion joints PROTEX blue, 20 meters long, designed for sealing and waterproofing movable joints during the construction of buildings, foundations, parking lots, tunnels, canals and other structures. Thanks to the possibility of reliable monolithing in the concrete structure and the presence of ribs on the closing plane, our hydro-shponka prevents the penetration of moisture inside the structure. Its deformable area allows you to perceive deformations of reinforced concrete structures without breaking the tightness. It can also be used for sealing between two concrete structures and can be supplemented with an internal hydraulic key in particularly important cases. Our hydraulic key is suitable for all types of structures and can be used in structures with special requirements to ensure tightness. It withstands high water pressure both inside and outside. The product comes in 20 meter rolls and is ready to help you ensure reliable waterproofing in your construction project.