Shape of Pressure Adjusting Nuts

Pressure adjusting nuts are key fittings in piping systems, used to regulate fluid pressure (typically operating within a range of 1-10 MPa). They are typically made of copper, aluminum, or stainless steel (corrosion resistance grade ≥ ASTM B152 standard), and sizes cover pipe specifications from 1/2 inch to 2 inches. The shape is primarily hexagonal (with opposite sides conforming to GB/T 6170 standard), and the bottom features internal/external threads (thread specifications such as G1/2, NPT1/4, etc.) to accommodate different pipe connection requirements. This component achieves pressure control by adjusting the preload through rotation, effectively preventing pipe burst accidents in petrochemical and water supply systems.