A ball valve is an on-off or a shut-off valve. A ball valve is a quarter turn valve and is used where quick and frequent operation is essential. Conventional ball valves have relatively poo [ ... ]

  The chromium in the steel combines with oxygen in the atmosphere to form a thin, invisible layer of chrome-containing oxide, called the passive film. The sizes of chromium atoms and their oxid [ ... ]

Slip type expansion joints are sometimes referred to as barrel type expansion joints. They are used to absorb large axial displacements where use of expansion loops is prohibited or not possible due t [ ... ]

Support span for PVC Piping system Spans are based on pipe filled with water and maximum sag of 2.5mm at center of span. Pipe support spans specified are in metres.  [ ... ]