SR Series regulators combine gas pressure regulating and flame staging in a single unit. They are an ideal replacement for dual manifold systems. Applications include direct-fired heaters with two-speed fans, hi-lo control for outdoor heaters, LP natural gas switchover, and industrial processing. They are suitable for natural, manufactured, mixed gases, liquefied petroleum gases, LP gas-air mixtures, and gases of DIN EN 437 gas families 1, 2, and 3.
