Rotarex SA introduces Residual Pressure Valves (RPV)

07 June 2021

Rotarex SA has introduced the next generation of Residual Pressure Valves (RPV). With higher flow capacity, worldwide compatibility, and compact design, Rotarex redefines what RPV can be. 

Undoubtedly, Residual Pressure Valves (RPVs) play an important role in industrial gas applications, and mostly in the beverage and welding industries.

Designed to maintain positive pressure relative to the atmosphere within a cylinder, RPVs prevent the cylinder from getting fully empty to reduce the internal ingress of atmospheric contamination. Cylinders with RPVs show dramatically lower levels of corrosion than those with standard valves. It leads to extending cylinders’ lifetime up to 15 years.

With the all-new Residual Pressure Valve from Rotarex, maximizing the value and utility of RPVs has never been so easy.

The new RPV achieves better performances with a higher Cv value reaching up to 0,7. It allows faster filling cycles than traditional RPV solutions, especially when it comes to liquid gases. Bigger strokes from the Residual Pressure Device (RPD) piston, with displacement up to 7,5 mm, means that, unlike other RPVs, the new RPV ensures residual pressure in the cylinder with the possibility of larger openings for faster filling—and the ability to process more cylinders in less time. As an example, it takes only 20 seconds to fill a cylinder with 10kg of carbon dioxide.

The next-generation RPV is compatible with any existing RPV connections and any filling station pin length, all pressure requirements, as well as all automatic filling stations. It enables good use of the increased flow capacity (Cv value up to 0,7) to accelerate the filling process.