VALVE HEAD Russian patent published in 2000 - IPC

FIELD: fittings, namely of sanitary equipment for controlling flows of working fluid in different pipelines, manifolds and other communication lines. SUBSTANCE: valve head includes body with axial opening. There are ports for passing working fluid in wall of body. Valve head also includes carrier and sealing members between body and carrier. In zone of arrangement of sealing members carrier has less diameter and annular stop. Sealing members are placed between body and said stop one after another without gap providing relation of body inner diameter and less diameter of stop equal to 1,1-1,5. EFFECT: simplified structure of head in zone of sealing body and carrier in combination with fluid-tightness and conditions allowing rotation of carrier. 5 cl, 4 dwg