Type FWP filter housings are designed as compressed air, vacuum and steam filter housings for small to medium compressed air volume flows / steam capacities and connection sizes in  the pressure level up to 16 bar at temperatures up to 200°C (up to 2,500 m³/h or 920 kg/h nominal ; connection sizes G 1/4 - G 3).

Type FWP filter housings are made from stainless steel, manufactured in a deep drawing process with final assembling by welding processes. For surface finishing purposes the filter housing are electro polished inside and outside, additionally mechanically polishing is provided on the outer side. Filter head and bowl are connected by a milk pipe connection (hygienic connection acc. to DIN 11851), sealed by an aseptic profile gasket. 

This results in a dead space free design inside the filter housing ensuring hygienic safety. Each type FWP filter housing is designed for one filter element of type EFSTP to be inserted. Connection and sealing between filter element and filter housing is provided by a double O-ring bayonet coupling. 

The housings are provided with a threaded inlet and outlet (connection size depends on the model) while many other connection types are available on request. Additionally each filter housing offers a threaded G 1/4 connection with the filter head and bowl for venting  purposes, as standard plug screws are fitted. On request additional connections for differential pressure indication are available. 

The filter housings comply with the requirements of the Pressure Equipment Directive 97/23/EC, and some (depending on the model) have the CE marking of this European directive.