NTA MTPM bulkhead straight union good quality nikel plated brass compression fitting/brass pneumatic compression fitting/compressed air bulkhead fitting/metal bulkdhead union straight compression fitting is connect tubing through a panel. It is suitable for use with hard nylon tube, brass pipe and stainless steel pipe, large retaining force, simple structure, reliable sealing ability, it can be used for a wide range of pressures from a low vaccum up to a high pressure of 2.5MPa/362.5PSI, excellent resistance to high pressure and vacuum, excellent mechanical performance, Long threads to resist shock and vibration, excellent abrasion and corrosion resistance due to high phosphorus chemical nickel plating, Full flow, minimal pressure drop, one ﬁtting for numerous applications: stock optimisation, manual connection and disconnection, compact and ergonomic. long lifespan, air through and break life cycle number reaching 17.4 million cycles, it is 2.8 to 348 times of lifetime from other Chinese fitting suppliers0.05 to 6.3 millions cycles. NTA bulkhead straight union brass compression fittings are 100% leak-tested in production,guaranteed quality. Metal push-on fitting applications: Food Process, Coffee Machines, In-Plant Automotive, Medical Equipment, Printing Machines, Misting, Welding Robots etc.