Dwyer Instruments 1900-5MR Pressure Switch 319847-401 this burner assembly rack is

this burner assembly rack is designed to withstand the high-temperature environments typical of industrial gas-fired systems while providing superior corrosion resistance compared to standard carbon steel

maintaining the integrity of the rolling diaphragm is critical to preventing air leakage and ensuring precise modulation of steam

By refreshing the moving parts and the primary seal

To raise the opening point on this direct-acting valve

Dwyer Instruments 1900-5MR Pressure Switch 319847-401 this burner assembly rack isThe Dwyer Instruments 1900 5MR Pressure Switch is a trade reliable solution for technicians requiring precise monitoring in HVAC, refrigeration, and air handling systems. This compact low differential pressure switch is specifically engineered to handle air and non combustible gases with a setpoint range of 1. 4" w. c. to 5. 5" w. c.. The "MR" designation signifies a manual reset pressure switch, an essential safety feature for critical alarm circuits