Dwyer Instruments 1638-0 Pressure Switch 320735-701 Constructed from close-grain cast iron

Constructed from close-grain cast iron for maximum strength and wear resistance

Standardized Bore: 1/2-inch hub diameter fits a wide range of standard direct drive shafts

ensuring stability in saturated steam and chilled water loops

625-inch diameter is equivalent to 1-5/8 inches

Does the kit include instructions for installation

Dwyer Instruments 1638-0 Pressure Switch 320735-701 Constructed from close-grain cast ironThe Dwyer Instruments 1638 0 Pressure Switch is a high precision, large diaphragm differential pressure switch engineered for critical HVAC and industrial process monitoring. Designed for use with air and non combustible gases, this low pressure switch features an adjustable range of 0. 05" w. c. to 0. 25" w. c., making it ideal for duct air control and sensitive differential pressure sensing. The unit utilizes a single pole double throw (SPDT)