Midland Industries Relief Valves

Overview

The MIDLAND INDUSTRIES 300002 is a brass breather vent designed for vacuum relief and pressure equalization on storage vessels and tanks. It features a 40 micrometer sintered bronze filter element that allows controlled airflow while blocking particulate contamination. The 1/4-inch MPT threaded connection makes installation straightforward on standard tank ports. Rated to 150 psi maximum operating pressure with a service temperature range of 35 to 300 degrees F, this vent suits a wide range of industrial and fluid handling applications. The compact brass body measures approximately 0.55 inches in length and 0.5 inches in width, keeping its footprint minimal on tank fittings. This breather vent is used wherever a sealed storage vessel or tank requires pressure equalization during filling, draining, or thermal cycling. Typical applications include hydraulic reservoirs, pneumatic storage tanks, chemical storage containers, and fluid transfer vessels. It prevents vacuum collapse and pressure buildup that can damage tank walls or compromise seals. The sintered bronze element provides passive filtration without requiring maintenance under normal service conditions. Installations are common in industrial, agricultural, and fluid power systems where a reliable low-profile vent fitting is needed. Key Features 40 micrometer sintered bronze filter element for passive particulate filtration Maximum operating pressure of 150 psi Operating temperature range of 35 to 300 degrees F 1/4-18…