Normally closed design prevents accidental activation, while the standardized 9.5 mm relief port dimensions ensure seamless integration with most air compressor accessories and piping networks. This regulator adapter switches assembly optimizes air system performance by providing precise pressure stabilization in the 5–8 KG (90–125 PSI) range and dual 220V/380V electrical compatibility for industrial reliability. Ideal for facility maintenance technicians, manufacturing plant operators, and enthusiasts who require professional level pressure control in air compressor systems and workshop tools. Built for durability with a 20 A maximum current capacity, up to 80,000 cycles, and erosionresistant copper/PVC construction, it withstands demanding pneumatic operations while maintaining a precise 20 mm bracket connection. Key specifications and compatibility: relief port 9.5 mm, 20 mm bracket connection, compatible with standard air compressor accessories and piping networks, suited for industrial environments. Use scenarios: In a manufacturing plant, stabilizes the pressure feeding multiple air tools and automation equipment to ensure consistent performance. On a facility maintenance task, provides reliable pressure control during diagnostics and servicing of pneumatic systems. In a hobbyist or professional workshop, integrates with existing piping to deliver steady pressure for common air tools and projects.