Cups are one of the types of sealing elements used by steel-mandrel pigs. They are designed to allow the pressure of the line to seat the outer sealing surface of the cup against the internal pipe surface to ensure positive seal. Cups are flexible so as to adapt to out-of-round or varying internal pipe diameters. Styles range from standard to conical, as well as special designs such as those for thin-wall pipes.
Brushes, mounted on solid-cast and steel-mandrel pigs, are used for abrasive pipeline cleaning where millscale, rust, sand, wax, paraffin, sludge, mud and debris exist. Prostran bristles allow for pipeline cleaning of plastic and internally coated pipe applications. Designs include wire-wheel, circular, spring-mounted, and wrap-around manufactured in carbon steel, stainless steel, and prostran (plastic) flat-wire or round-wire material. Brush replacements are available for ALL manufacturer’s pig styles — ours as well as others.
Gauging plates used in conjunction with steel pigs to prove pipe roundness and to ensure excessive weld penetration or debris does not exist in the line, as well as, proving minimum bend radius prior to intelligent pig runs. The standard construction material for gauging plates is aluminium.