Engineered Filter Systems from Ronningen-Petter

Ronningen-Petter systems are all based on a carefully engineered, in-line, tubular design that feeds pressurized unfiltered liquid upward, along, and through the filter element. Elements are wire mesh, slotted or perforated stainless steel or woven fabrics made from polypropylene, polyester, or other select materials. Filtered liquid discharges from the top of the unit. This flow pattern assures that all contaminants are collected on the outside of the element for easy cleaning.

Unique Gasket Design Assures Positive Filtration

A key feature of R-P systems is a unique, external gasketing design that prevents solids from bypassing the filter and contaminating your process downstream. There that can fail, no cartridges that can collapse or be-come misaligned and allow bypassing. There is only one way to assemble a Ronningen-Petter filter; the right way so positive filtration is absolutely assured.

Other Design Features Maximize Productivity and Cleaning as They Protect Other Components

The keys to the high productivity of Ronningen-Petter filters are design features that minimize pressure drop across the filter. For example, R-P filters feature a patented, 3-way, T-port ball valve with full ports and a C v of 228. By contrast, others typically include an off-the-shelf valve with reduced ports and C v ’s of 98-115. This difference minimizes pressure drop from inlet to outlet. When multiple filters are connected to headers, the connection area on the headers is first "pulled," creating a radial flow path. This eliminates the sharp 90° angles that increase pressure drop. Individual filter housing inlet and outlet nozzles are also gradually curved for the same reason.