High Pressure Straight Fittings & Adapters with Male NPT on one or both sides are designed for connecting high-pressure systems. NPT (National Pipe Taper) fittings, made from durable cold-worked 316 stainless steel, are rated for pressures up to 15,000 psi (1034 bar), though pressure ratings may vary based on thread size. These fittings ensure a robust, leak-proof connection in demanding applications, and special materials are available upon request to meet specific needs.