The AVK stainless steel repair clamp is a fast, reliable and simple solution to repair pipes made of steel, copper, asbestos cements, cast iron and synthetic materials. This stainless steel repair clamp can be used for the permanent repair of cracks, holes or complete breakages in pipes of for tapping. The stainless steel repair clamp are manufactored and assembled at AVK Nederland BV in Vaassen. This manufacturing company is completely adjusted to the wishes and demands of this time. The whole manufacturing process is ISO 9001 certified.
The principle rests on a stainless steel, pre-rolled plate, which is clamped around the pipe and fastened with welded bolts and nuts. The clamp has a rubber lining. The tensile force applied by the clamp fastenings is converted to a radial pressure on the rubber lining. The repair clamp for small diameter pipes consist of a single section. For larger diameters there are clamps made of several sections.
The stainless steel repair clamp is made of AISI 304 quality, but also AISI 316 and other qualities are available. After welding the stainless steel repair clamp is completely passivated to guarantee optimum corrosion resistance.
An essential part of the stainless steel repair clamp is its rubber lining. This rubber lining has a "waffled" structure which forms sealed cells when clamped. The type of rubber used depends on the application. The standard application is EPDM (water) and NBR (gas). For special applications there is a choice of Viton and other rubbers.
EPDM (ethenepropeneterpolymer), according EN 681-1 is highly suitable for water, hot water, steam, oxidising fluids and acids. Temperature ranging from -50°C till +110°C.
NBR (nitril rubber), according EN682 is especially suitable for gas, oil, water, animal and vegetable oil. Temperature ranging from -30°C till +110°C (for shorter periods to +130°C).
Our sales department would be glad to advise you on the choice of rubber suitable for other applications.