Products 
Direct-Operated 
Fisher direct-operated regulators are used in fuel gas and commercial / industrial service applications to maintain a constant set outlet pressure within 10 percent to 20 percent of setpoint.
133 Series Pressure Reducing Regulators
Fisher 133 Series direct-operated regulators are ideal for industrial and commercial applications supplying gas to furnaces, burners, and other appliances.
627 Series Commercial / Industrial Regulators
Fisher 627 Series direct-operated pressure reducing regulators are for low and high-pressure systems.
912N Series Pressure Regulators
Fisher 912N Series direct-operated, spring-loaded regulators are used in a variety of service and industrial applications. These regulators have limited-capacity internal relief across the diaphragm to help minimize overpressure.
CS200 Series Pressure Reducing Regulators
Fisher CS200 Series direct-operated, spring-loaded regulators have been engineered to fit a multitude of pressure-reducing applications including commercial and light industrial installations.
CS400 Series Pressure Reducing Regulators
Fisher CS400 Series direct-operated, spring-loaded regulators have been engineered to fit a multitude of pressure-reducing applications including commercial and industrial installations.
CS800 Series Pressure Reducing Regulators
Fisher CS800 Series direct-operated, spring-loaded regulators have been engineered to fit a multitude of commercial and industrial pressure-reducing applications.
CSB400 Series Pressure Reducing Regulators
Fisher CSB400 Series direct-operated, spring-loaded regulators have been engineered to fit a multitude of pressure-reducing applications including commercial and industrial installations.
S200 Series Pressure Reducing Regulators
Fisher S200 Series quick-reacting pressure reducing service regulators are used in industrial or commercial installations to minimize the shock effect of sudden downstream load changes that might otherwise activate safety shutoff equipment.
Type S402Y Pressure Reducing Regulator
Fisher Type S402Y direct-operated, spring loaded regulators provide economical pressure-reducing control in corrosive environments for residential and small commercial applications.
Y600A Series Pressure Reducing Regulators
Fisher Y600A Series direct-operated, spring loaded regulators provide economical pressure reducing control in a variety of commercial and industrial applications.
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