How to calculate the delivery volume of concrete pump tubes

The concrete pump is often used. How to calculate the delivery volume of the concrete pump pipe tube? Here's a brief introduction.

Calculate the concrete pump delivery volume, according to the maximum output of concrete pump, pump tube wear and

operating efficiency, according to the following formula:

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Q1 = Qmax *a*η
Where Q1 is the output of each concrete pump tube (m/h);
Qmax is the maximum output of each concrete pump tube (m/h);
a is the tubing condition factor. Desirable 0.8~0.9;
η is operating efficiency. According to the concrete mixer truck to the concrete pump pipe feeding time, dismantling the concrete pump tube and fabric rest and so on, it is desirable 0.5 ~ 0.7.
The above is how to calculate the delivery volume of concrete pump  pipe tubes, hoping to help everyone.