BALL COCK Russian patent published in 1995 - IPC

FIELD: valving. SUBSTANCE: guides are secured to the driving shaft. The axial bore, which goes into a through axial opening and is connected with outer surface of the driving shaft through the radial opening, is made in the driving shaft. The rod is received in the through axial opening for permitting interaction with a handle via the top end and with a relief valve through the bottom end. The rotatable valving member is constructed as two hollow same parts of a sphere provided with sealing members on the outer surface. The parts of the sphere are set in the guides of the driving shaft for permitting arrested movement in the radial direction. A through opening is made in the part of the sphere positioned from the side of the inlet branch pipe. The are of the cross-section of the opening is less than the area of the cross-section of the radial opening, axial bore, and discharging passage. The inlet branch pipe is connected with the space of the valving member via the through opening. The space of the valving member is in communication with the axial bore of the driving shaft through the radial opening. A seat, which is overlapped by the relief valve, is made at the end face of the shaft. EFFECT: enhanced reliability. 2 dwg