Protects the compressor from dirt. A relief device opens if the filter plugs suitable for use with all brazing alloys. Full flow design for low pressure drop. Maximum corrosion resistance. Complete line of sizes when flow is in one direction, the bypass relief feature is active. If the pressure drop across the element becomes excessive, the bypass relief will open slightly to maintain sufficient gas flow and assure proper cooling of the hermetic motor. When the suction filter is installed with flow in the opposite direction, the bypass relief feature is inactive and will never open, regardless of the increase in pressure drop need to connect an access valve this hour. Measure pressure drop through the filter elements arrive suction lend valve of the compressor. The?-T? in the type number indicates that these models are equipped with an access valve to permit pressure drop readings. The access valve will be operational provided the suction filters a reinstalled with the bypass feature inactive.