Intovalve Ltd from United Kingdom manufacturers penstocks in stainless steel grade 304, 316, 904, 2205 and 2507, cast iron and HDPE in addition to flood logs, flap valves and many other bespoke fluid control equipment.

Intovalve Ltd manufacturers wall mounted penstocks as well as channel mounted penstocks, suitable for on and off seating pressures for seawater, grey and black water and aggressive media applications.

Intovalve ltd also manufacturers pipe valves and culverts valves for flood protection and sewage applications. They also maufacturer hand stops as well as stop logs to control flow direction of sewage and municipal applications.