Essentially the valve less pump is a reciprocating plunger pump. However a reciprocation pump requires two non return valves one each at the suction and the discharge port of the pump for it normal functioning.
Such non return valves causes’ severe problem in certain application. To overcome this problems the valve less pump provides the solution without the use of discrete non return valves, this is explained below.
Our BALYOG provides this valve less function. The mechanism enables combine rotary and reciprocating motion to the plunger in synchronism, thus giving it characteristics of variable delivery positive displacement pump.
The BALYOG mechanism consists of a yoke and ballpin. The yoke and the ballpin axis lie on a plane but their axis are tilted. During the circular motion of this mechanism due the the inclination of the ballpin axis with respect to the yoke. The ballpin wobbles with respect to the yoke imparting synchronized helical motion to the plunger. The plunger has specialy design slots with respect to the suction and discharge ports. These enable valve less function.
The discharge of the pump can be varied by varying the angle between the yoke and the ballpin. A fine screw enables precise control and large graduated dial gives high resolution.
The valveless pump is advantageous in application where non return valves can get chocked, where the operation of the valve becomes sluggish due to the nature of the fluids handled. However there is little limitation in respect to the volumetric efficiency, this limitation is due to the internal clearances required for running of the plunger. The clearances cause some internal leakages at higher pressures
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