日本av电影网站Series “CV” Flow Control Butterfly Valves incorporate a full-flow, fixed gradient Butterfly Valves design for high capacities at low-pressure drops, using minimum operating torque. Series “BV” Balancing Butterfly Valves are used to balance gas or air flows in multiple-burner systems fed by a common manifold. These gas valves feature a full-flow butterfly design with provision for locking in any position. Both flow control butterfly valves are used for air, gas and oil proportioning control.

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