Aquaflow Become Trusted Partner in the Prevention of Water Hammer

Published: 26th June 2013 | Issue 25

Aquaflow’s pioneering check valve which is capable of withstanding velocities up to 5m/s, whereas a conventional swing check valve is suited to a maximum velocity of approximately 3m/s.

Cheshire based Aquaflow Valves’ innovative approach to preventing the damaging effects of water hammer has seen them win contracts from water authorities across the globe. Their non-slam design can prevent the problems associated with sudden changes in flow rate.

The potential damaging effects of water hammer are caused within a pumped system by an abrupt change in flow rate; usually resulting from pump starts and stops. These abrupt changes can cause the flowing water column to undergo a momentum change producing a shock wave that can travel back along the system. The resultant shock wave can cause expensive equipment damage or system failure.

With over 20 years in the business, Aquaflow valves are professionals in the design, manufacture and distribution of a range of engineered waterworks valves and associated ancillary equipment and, are delighted to have recently secured a number of contracts from global water authorities. The contracts are for the supply of performance nonslam check valves that assist in preventing water hammer. The valve has been specifically engineered to ensure rapid closure yet negating slamming during flow reversal. Due to the unique metal-seated non-slam design of the check valve the unit is capable of withstanding velocities up to 5m/s, whereas a conventional swing check valve is suited to a maximum velocity of approximately 3m/s. ‘As standard’ valves feature a precision machined weld-overlay deposit copper alloy seat, durable fusion bonded epoxy coated ductile iron body, stainless steel fasteners and WRAS listed materials making the valves suitable for both wastewater and potable water duties. Recently supplied units have included ancillaries such as flow sensing switches and integral bypass assembly with isolating valve.

Single door units are available from stock flanged to EN1092 rated to 16 Bar; while alternative flange configurations, multi-door units, higher pressure ratings and materials suitable for saline duties are also available.

Aquaflow is the specialist waterworks valve division of Cheshire based T-T
Tel: 01630 647200
www.aquaflowvalves.co.uk.

TT Flow

Telephone:	+44 (0)1630 647200
Email:	ttflow@ttpumps.com
Website:	https://www.ttpumps.com/products/valves
	More information on the TT Flow BVAA Member Directory Page