The pump flow rate is the amount (volume or weight) of liquid that the centrifugal pump delivers per unit of time.
Volume flow rate (usually used flow rate) is expressed in Q, in units of: m3/s (cubic meters per second), m3/h (cubic meters per hour), l/s (liters per second)
1 cubic meter = 1,000,000 cubic centimeters, 1 hour = 3600 seconds
1 cubic centimeter / second = 10 -6 square cubic meters / (1/3600 hours)
= 3.6 × 10 -3 power cubic meters / hour
=0.0036 m3/h
Therefore, according to the above conversion formula, if the parameter of the product is 100 cubic centimeters per second,
The result of the conversion is: 100 × 0.0036 = 0.36 m3 / h.
Mass (weight) flow is expressed in Qm, the unit is t / h (tons per hour), Kg / s (kg per second), etc.
The relationship between mass flow and volume flow is Qm=Q×p
Where p is the density of the liquid (Kg / m3;, t / m3;), normal temperature water p = 1000kg / m3;
Example: The flow rate of a pump is 50m3/h. What is the weight of pumping per hour?
The specific gravity of water is p=1000kg/m3;
Solution: Qm=Qp=50m3; /h×1000kg/m3;=50000kg/h=50t/h
That is to say, for normal temperature and clear water, 1m3/h=1t/h
