Corrosion Resistance: Galvanized steel construction provides durability against moisture and oxidation in high-humidity environments

preventing board damage during field installation

this pilot-operated valve handles air

Maximized Filtration Surface: Precision-molded block design ensures consistent flow and prevents desiccant migration into the refrigerant circuit

this valve delivers the precision and longevity required for critical process automation

Dwyer Instruments A-421 Pressure Tip Refrigerant Corrosion Resistance: Galvanized steel constructionAs 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