Application The throttling butterfly valves are valves to
regulation medium flow rate, which can flow by both ways. The throttling
butterfly valves aren’t closing valves. Working medium air water non-aggressive
liquids gases Maximum working temperature A working temperature is from -40 °C
up to +400 °C and depends on the body and gland packing material. Technical
description The eccentric disc is pivoted by operating shaft in the body. The
angle displacement of the disc is 0-90°. Disc position is shown by indicator
line on the shaft, eventually on the electric actuator. There is always a gap
between disc and body in closed position (butterfly valve is not closing valve)