Relief valves, shown at pic.1, 2, 3, 4, 5, 6 and 7, operate as a part of pilot-relief device togetherwith corresponding pilot valve
Relief valves, shown at pic.8, 9, 10 and 11 are direct-acting valves.
Drive type: lever (Рч) and servodrive (Сп).
Sealing surface: corrosion-resistant steel.
Connection to pipeline:flanged (2)by welding (3), male (5).
Operating medium flow: in the direction of body indicator.
Installation position - horizontal, with stem up.
Ambient class: У3 according to GOST 15150.
← impulse supply from pilot valve.