FIELD: mechanical engineering.
SUBSTANCE: valve contains installed in casing (1) immovable saddle (4) with throughput shape windows, contacting to slide valve (5), implemented with openings, in cylinder (10) of which it is installed piston (11) with unloading chamber (15). Intermediate chamber (9) is implemented in the form of groove, located lengthwise the external contact stripe of slide valve (5). Webbing (6, 14) are installed in erosion-resistant glass (8). Leaf spring (17) of high rigidity contact to slide valve (5). Spindle (18) of drive (24) pass through cover (22) of casing (1). Rest (13) is connected to piston (11) and stiffener (6).
EFFECT: increasing reliability and durability of valve ensured by increasing of contact and friction area between saddle and slide valve and stiffening effect of leaf spring and stiffeners, installed in glass.
4 dwg
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