Hydroshpine internal for deformation seams ARFEN PVC type A 20-5

Waterproofing of concrete structures is a critically important component of modern construction, especially when it comes to objects in contact with water or located below the groundwater level. To ensure the tightness of expansion joints in such structures, special waterproofing materials are used - in particular, PVC waterstops . One of the reliable and proven solutions is the internal waterstop Arfen type A 20-5 , which has already proven itself in difficult operating conditions.
Purpose of Arfen hydraulic wedge type A 20-5
The Arfen A 20-5 waterstop is designed to seal expansion joints in monolithic reinforced concrete structures. Its main function is to prevent water from penetrating through joints formed as a result of temperature fluctuations, concrete shrinkage, seismic or man-made movements. The internal installation type involves installing the waterstop inside the body of the concrete structure , which allows you to create a reliable barrier to water and maintain the integrity of the structure.
Features and advantages of the Arfen A 20-5 hydraulic wedge 
Manufacturing material : Arfen type A 20-5 hydro-shpin is made of high-quality polyvinyl chloride (PVC) , which is characterized by elasticity, resistance to aging , moisture, chemicals and aggressive environments.
The yellow color facilitates visual inspection during installation.
Type A 20-5 has a special shape with wavy ribs that improve adhesion to concrete and allow compensation for horizontal and vertical movements of the structure .
Meets tightness standards even in the absence of groundwater under pressure , but is also effective in difficult hydrogeological conditions.
The length of the roll is 20 linear meters, which ensures savings when purchasing and ease of transportation.
Scope of application of Arfen hydraulic wedge type A 20-5 
Arfen type A 20-5 hydro-dowels are used in a wide range of objects, including:
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Hydraulic structures: dams, reservoirs, irrigation canals, reservoirs ;
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Transport infrastructure: tunnels, subways, viaducts, bridges ;
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Notional complexes: wastewater treatment plants, pumping stations, hydroelectric power plants ;
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Residential and civil construction: foundations, retaining walls, underground parking lots ;
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Any concrete slabs or joints in contact with water or subjected to dynamic loads.
Installation and recommendations 
Before installing the hydraulic wedge, it is necessary to make sure that the base is clean and flat. The Arfen A 20-5 hydraulic wedge is inserted into the structure during concreting. Its central position in the joint allows you to effectively compensate for the movements of both parts of the concrete and prevent leakage. Fastening to the reinforcement is carried out using a special wire or clamps to avoid displacement during concrete pouring.
Order Arfen hydraulic wedge type A 20-5
You can buy an internal Arfen PVC hydro-key type A 20-5 yellow in a roll of 20 m.p. on the Protex website at a favorable price with delivery throughout Ukraine. We offer:
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Certified products from an official supplier;
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Consultations on the selection of hydraulic dowels for your facility;
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Wholesale prices for construction companies;
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Convenient payment methods and fast logistics.