Radial diaphragm valve VARIVENT® T_R series

for watertank bottom

Mixproof Tank Bottom Valves Type T_R series VARIVENT® are used for mixproof shut-off between the tank and the pipe system. In the closed position of the valve (non-actuated position) always two seals are located between the pipe and the tank. If one of the seals fails, leakage may directly drain to the open via the therefore provided leakage outlet without intermixing with the product being in the second pipe. An optimised sealing concept and a modified design of the VARIVENT® tank bottom valve type T_R now open up new possibilities for designing the tank outlet area. The modular design of the valve in connection with the radial seal to the tank now make it possible to close reliably against higher pressures than before. The reliability of the process is also enhanced: the balancer fitted in the closing direction prevents the double disk from closing too fast, thus reducing the risk of pressure hammers. The design of the VARIVENT® T_R valve with the option to install a flushing valve now allows the valve to be installed in the horizontal position - this creates innovative and flexible ways for shutting off tanks.