Industrial Durability: The NEMA 4X enclosure and aluminum construction provide excellent protection in harsh environments

Optimized for general purpose air

If the link is open (infinite resistance)

enabling technicians to verify stem travel at a glance without specialized tools

ensuring precise fuel regulation for commercial water heaters and boilers

Advanced Distributor Products 176799976 Piston Orifice 319825-402 Industrial Durability: The NEMA 4XThe Advanced Distributor Products 176799976 Piston Orifice is a high precision metering component engineered to optimize refrigerant flow within residential and commercial HVAC systems. Specifically designed for R410A refrigerant systems, this size #76 piston orifice ensures the consistent performance of 4 ton evaporator coils by maintaining an exact pressure drop as liquid refrigerant enters the coil. This "fixed bore" metering device is a preferred