Dwyer Instruments A-421 Pressure Tip 320788-704 quiet operation characteristic of ZRK5

quiet operation characteristic of ZRK5 series technology

always remove the solenoid coil before brazing to prevent thermal damage to the internal seals and seat

providing reliable solenoid operation and consistent fuel regulation

Key Benefits Optimized Refrigerant Control: Precisely meters R-22 refrigerant to maintain ideal superheat levels and system balance

70"wc compression switch features a heavy-duty diaphragm and rugged housing to prevent nuisance tripping and ensure long-term reliability

Dwyer Instruments A-421 Pressure Tip 320788-704 quiet operation characteristic of ZRK5As a field technician, you know that accurate static pressure measurement is the baseline for diagnosing system performance. The Dwyer Instruments A 421 Static Pressure Tip is a professional grade pickup designed for permanent installation in ductwork and air handlers. Featuring a 6 inch probe with four radially drilled . 040 inch sensing holes, this assembly effectively eliminates the impact of air velocity and turbulence to provide a true static