Sanitary Cartridge Housings Shelco's sanitary series housings have been designed for the most critical and demanding applications requiring purity and durability. The maximum design working pressure is 150 P.S.I. (10 bar) @ 200°F (93°C). The SIF and SF series is standard with sanitary ferrules for the inlet and outlet with ½" sanitary ferrules for the drain and vent. The standard gasket material is Silicone. Please refer to our ordering guide for a complete list of options or contact one of our technical specialists for help.