Grooved piping system is reliable and is faster to install than welding, threading or flanging, resulting in lowest installed cost. It can be adopted to suit standard pipe with cut grooves or standard and light wall pipe with rolled grooves. Couplings perform equally well under pressure and vacuum. Couplings are available for flexible and rigid system. Grooved end fitting are machined to AWWA C606 cut groove standard Products are offered with RAL 3000 alkyl enamel rust preventive paint as standard and hot dipped galvanised coating is available optionally.