The Pyronics BV-Butterfly Valve has a flanged construction which eliminates the need for pipe unions. Air flow in low pressure lines (up to 3 psig) is easily and effectively controlled by the butterfly valve. This may be done manually or automatically by using suitable control equipment. These valves are designed for free flow with minimum air pressure drop. As they are not intended for tight shut-off, slight leakage (less than 2%) may occur in the closed position.

butterfly-valve-bv-cmapThe Pyronics BV-CMAP motor operated butterfly valves are used for modulating air and gas flows for most types of combustion systems. The flanged construction eliminates the need for pipe unions. A unique “O”-Ring seal prevents leakage around the shaft.

butterfly-valve-bv-cpapThe Pyronics BV-CPAP pneumatic operated butterfly valves are used for modulating air and gas flows for most types of combustion systems. The flanged construction eliminates the need for pipe unions. A unique “O”-Ring seal prevents leakage around the shaft.

butterfly-valve-high-tempPyronics High Temperature Butterfly Valves are designed to control the flow of air or gas. Bodies are rugged cast iron construction, discs are plated steel with shafts machined from steel.

butterfly-valve-manual-threadedPyronics Manual Threaded Butterfly Valves are designed to control the flow of air or gas. Bodies are rugged cast iron construction, discs are plated steel with shafts machined from steel or brass. 6 TBV has plated steel hexagonal body.

butterfly-valve-tbv-cmapThe Pyronics TBV-CMAP motor operated butterfly valves are used for modulating air and gas flows for most types of combustion systems. The valve body is cast iron, the disc is steel, and the shaft is brass. Special materials for corrosive gases are available. A unique “O”-Ring seal prevents leakage around the shaft.

butterfly-valve-tbv-cpapThe Pyronics TBV-CPAP pneumatic operated butterfly valves are used for modulating air and gas flows for most types of combustion systems. A unique “O”-Ring seal prevents leakage around the shaft. Available from 1″ to 6″ pipe sizes.

butterfly-valve-tbv-cmapjThe Pyronics TBV-CMAP-J motor operated butterfly valves are used for modulating air and gas flows for most types of combustion systems. A unique “O”-Ring seal prevents leakage around the shaft. Available from 3/4″ to 4″ pipe sizes. The motor is directly coupled to the valve stem eliminating the need for a linkage.

butterfly-valve-waterHigh capacity air flow in low pressure lines (up to 50 psig) is easily controlled with the Pyronics Wafer Butterfly valve. These units are designed to mount between ANSI 125# flanges. Valve ports are precision bored to full pipe area. Pressure drop across valve is equivalent to 1-1/2 lineal feet of pipe.