The FD130 automatic float drain is used in positive pressure systems to remove large quantities of liquid. The drain is added to the drain port of a filter housing fitted with a coalescing filter element. The liquid drains from the housing into the automatic float drain and collects in the bottom. As the level of the liquid rises, the float will open a valve, and the liquid drains out. The FD130 automatic drain is suitable for use in systems with a positive pressure between 15 PSIG and 250 PSIG. Port Size (NPT) 1/4"Maximum Operating Pressure (psig) 250Maximum Body Pressure (psig) 250Maximum Temperature (°F) 120 Principle Dimensions: (inches) Centre Of Port To Head 0.39Head Diameter 1.81Overall Length 3.54Materials Of Construction: Head & Base 316L Stainless SteelInternals Nylon / BrassBowl 316L Stainless SteelSeals VitonAccessories: Seal Set GVFD130