Technical Data
Ball Valves Product Range

Last Updated

July 15, 2022

Flowflex reserve the right to alter the product ranges and specifications associated with its products without prior notice

Flowflex Ball Valves are a quick way of isolating flow in a system. Flow is controlled through a quarter turn action which moves the hole in the ball inline or out of line with the flow, preventing or facilitating flow as appropriate.

Brass Ball Valves are regarded as a long term and reliable solution, performing well after long periods of disuse. The quick operation of a Ball Valve, is an advantage, and makes it ideal for emergency applications, however by the same merit, a disadvantage may be that Ball Valves induce water hammer in a system.

  • Allows for the quick isolation of a water supply
  • Quarter Turn Operation
  • Compression Ends to BS EN 1254-2
  • WRAS Approved - Female Lever Ball Valves
  • 5 Year Warranty


  • Domestic
  • Commercial
  • Industrial


Flowflex operates a quality management system audited by the British Standards Institute for the manufacture and supply of fittings and components for use in all applications of the HVAC industry.

Tube Compatibility

All installers should ensure that the size of the valve matches the size of the tube, whilst also ensuring both are in good condition and free from damage and imperfections.

Flowflex valves are designed to connect BS EN 1057 tube.

Working Conditions

Working Conditions of our Ball Valves vary based on their pressure rating and connection mechanism. Flowflex supplies Ball Valves that match the following pressure ratings:

Product Range 611 711 & 811 PX811
Pressure Rating PN20 PN30 PN40
Working Temperature -20°C to 120°C -20°C to 120°C -10°C to 95°C
All working conditions assume that the components have been assembled and connected correctly, and adhere to their respective tube compatiblity
When planning to use our products in applications outside the scope of our recommendations, approval from us should be obtained beforehand. Please contact us in these cases.
Compression Butterfly Ball Valve
Intermediate pressure ratings shall be obtained by interpolation
Intermediate pressure ratings shall be obtained by interpolation
Intermediate pressure ratings shall be obtained by interpolation