Bray Controls is proud to offer a line of superior quality, high pressure manual butterfly valves that meet many of today's requirements in the process industry. Note: Series 36H butterfly valves will not be automated. Series 36H large diameter, double flanged valves are rated for 232 psi (16 Bar) bidirectional and dead end service. Series 36H double flanged valves are drilled and tapped to meet ASME Class 125/150 and PN10 flanges.