Valve

A ball-type valve intended for installation in hydraulic systems and comprising:

• a body with an essentially cylindrical inner space;
• two identical sockets installed coaxially in the body and provided with central holes in their bottoms the circular edges of the holes forming valve seats;
• ball closing elements co-operating with the seats with a possibility of valving them;
• annular seals mounted on the sockets and dividing the valve body into three chambers consisting of an inlet chamber for receiving a fluid under pressure, an outlet chamber communicating with the output element, and a return chamber for draining the fluid from the output element;
• a drive with a rod adapted to actuate the closing elements to open or close the valve;
• a pushrod installed along the axis of the valve body and intended to transmit motion from the rod to the closing elements;
• guides for the pushrod, made in the sockets.