The Evolution Aqua Double Union Ball Valves are available in a range of sizes to suit your needs. These high quality ball valves are designed to fit standard pressure pipe or standard solvent weld pipe when used with suitable reducing sleeves (available separately). The EA Ball Valves have numerous uses such as reducing pump flow rates, isolating pipework runs or opening and closing drain outlets. Thanks to the Double Union connections, equipment such as pumps can easily be removed by turning off the valve and unscrewing it.
The choice of which type of pipework to use has always been a dilemma. It is well known, the use of anything other than pressure pipe and fittings for both gravity and pressure lines and the added security and peace of mind that they bring, is only a cost saving exercise. Unfortunately, the use of pressure pipe and fittings in the past has simply been too expensive for the majority of koi keepers, despite it being the preferred choice.
One of the objectives at EA has been to create a complete pressure pipework range, at prices that all can afford... and they've done it! without compromise. Everybody can now afford to use the highest specification pressure pipework and fittings available.