Internal Pressure Relief Valves

• Midland offers the largest variety and range of pressure relief valves in the industry. Midland pressure relief valves are used in a wide range of applications and provide the additional security of being a re-closing pressure relief device. Internal valve designs are available in pressure ratings from 75 psig to 165 psig, and flow rates up to 35,608 SCFM
• O-ring seals are easily replaced and can be used with a diverse range of commodities to maximize the in-service life of every tank car
• All valves include wire-tamper seals with the assembler’s ID number, providing traceability back to Midland and the employee who assembled and tested the valve
• Years of knowledgeable design and testing has resulted in valves with superior reliability, maximum flow rates, repeatable set pressures, and easy maintenance
• Internal style valves provide a low profile installation and are an excellent choice for noncorrosive commodities
• Combination devices incorporate a rupture disc with a pressure relief valve, providing corrosion protection for the relief valve
• PVDF insert valves are also available for aggressively corrosive services such as HCl

Large Internal Models