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01 replacement ensures proper fit and performance without field modifications
the kit includes the reinforced paddles along with the necessary screws and washers for a complete flow switch repair
The brass body construction provides structural integrity
For side-mount requirements
always verify your specific model number
Dwyer Instruments 1640-0 Switch 318423-701 01 replacement ensures proper fitThe Dwyer Instruments 1640 0 Switch is a high precision differential pressure switch engineered for specialized HVACR applications requiring floating contact null switch logic. Unlike standard snap acting switches, the 1640 series utilizes a single pole double throw (SPDT) floating contact design to provide two distinct actuation pointshigh and lowwith a defined "null" zone in between. This makes it an ideal solution for motorized damper control and