News

The TWA ceramic rotary valves are designed from the outset to be reconditioned to “as new” with changeable wear parts. These valves are installed under electrostatic precipitators handling fly ash at a coal powered power station run by RWE in Niederaussem, Germany. There are 36 valves and 12 spares, transferring ash from the ESP outlets into a Claudius Peters Fluidcon pneumatic conveying line. The ash is extremely abrasive as the power station burns brown coal with a high…

The range of explosion isolation valves is growing. In conjunction with Fike, the market leader in explosion protection, the MID range of large silo explosion isolation valves has been added to with a 900×900 unit. The 900mm unit, with a smaller, lighter plate than the original 1200mm unit, can close even faster with a reaction time of only 125ms. The valve body is designed to resist the enormous forces generated in the closing cycle over and…

Using sophisticated fabrication techniques, we can manufacture valves to fit any other manufacturer’s footprint. Rather than just replacing the valve like-for-like, we add wear resistance using hard materials to dramatically increase longevity. In real-life, customer tested applications, swapping to an MID unit increased longevity by a factor of 3 compared to a tungsten carbide lined rotary valve. Maintenance was also eliminated as standard fitting for abrasion resistant valves are mechanical shaft seals that require no…

Refurbishment This rotary valve feeds a mill handling gypsum. The existing unit was built long ago and was expensive to repair, with the body worn completely through in places. Rather than simply effecting a repair, we upgraded the unit, machining the old body out so it was concentric and fitting wear plate liners that are replaceable making it much more wear resistant and easier (and so cheaper) to repair in the future

Working in an exclusive collaboration with Fike, the market leader in explosion protection, we have designed and built some large 1×1.2m explosion isolation valves that have been tested and certified by Ineris for Atex certification as a protective device to 0.5 bar. The valves are used as part of an explosion detection, suppression and isolation system and the certification tests covered the whole detection and suppression system as a certified protective device. The system detects an explosion and…

Sometimes things don’t always go to plan so we have to get a little inventive to help customers out. A pharmaceutical company ordered a quick clean rotary valve but the resulting throughput was too high. They didn’t want to slow the valve down as the process would not cope with the “pulsing” effect so instead they asked if we could work out a way of reducing the volume of the rotor. To do this we…