Romynox supplies various types of diaphragm valves such as the tank bottom, tandem, multi-block and T-valve with Zero Dead leg of SED Flowcontrol. SED is a German manufacturer of diaphragm valves and is one of the first and few producers of diaphragm valves with EHEDG certification. SED is fully compliant with the high ASME BPE standards for the pharmaceutical industry. The SED diaphragm valves have a surface finish with a Ra value to max 0.25 um and electro or mechanically polished. ASME BPE 2012 Table SF5.