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What are the performance parameters of QBY type pneumatic diaphragm pump? And what are the scope of use?

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What are the performance parameters of QBY type pneumatic diaphragm pump? And what are the scope of use?

Date: May 06, 2019 Click: Times

The performance parameters and application range of QBY type pneumatic diaphragm pumps are different due to the different working pressure ranges and starting pressures of various diaphragm pumps. Therefore, these requirements must be met when selecting QBY type pneumatic diaphragm pumps.

QBY pneumatic diaphragm pump performance parameters

1. Extreme pressure

The unit of the ultimate pressure of the pump is pa, which means that the pump is equipped with a standard test cover at the inlet and works according to the specified conditions. Under normal operating conditions, the low pressure strength tends to be stable without the introduction of gas.

Pumping speed

The pump speed unit of the pump is m3 / s or l / s, which refers to the ratio of the gas flow from the test cover to the equilibrium pressure measured at the specified position of the test cover when the pump is equipped with a standard test cover and runs under specified conditions . In short, the pump speed of the pump.

3.Air extraction volume

The pumping capacity unit of QBY pneumatic diaphragm pump is pa m3 / s or pa l / s, which refers to the gas flow at the pump inlet.

4.Starting pressure

The starting pressure unit of QBY pneumatic diaphragm pump is pa, which refers to the pressure that is not damaged when the pump starts, and has the suction effect.

5.Pump front pressure

The foreline pressure unit of QBY type pneumatic diaphragm pump is PA, which refers to the outlet pressure of the diaphragm pump whose exhaust pressure is lower than one atmosphere.

6, early pressure

The pressure unit of QBY type pneumatic diaphragm pump is PA, that is, if it exceeds the previous stage pressure, it will damage the pump.

7. High working pressure

The large working pressure unit of QBY type pneumatic diaphragm pump is PA, which refers to the corresponding inlet pressure when the pumping volume is large. At this pressure, the pump can work continuously without damage or deterioration.

8.Compression ratio

Compression ratio is the ratio of the pump outlet pressure to the inlet pressure for a given gas.

9.Ho coefficient

The ratio of the actual pumping speed of the pump to the theoretical pumping speed calculated with molecular effusion.

10.Pump speed coefficient

The ratio of the actual pumping speed of the pump to the theoretical pumping speed, which is calculated from the molecular exudate at the pump inlet.

11.Reflow rate

The unit of the return flow rate of the pump is g / cm2.s, which refers to the mass flow per unit area of the pump flow through the inlet of the pump when the pump operates under specified conditions.

12.Allowable water vapor

The permissible water vapor unit is kg / h, which refers to the mass flow of water vapor that can be removed by a pneumatic ballast pump when it is continuously operated under normal environmental conditions.

13.Allowable water vapor inlet pressure

The unit of pressure for the large water vapor inlet is pa, which refers to the high water vapor inlet pressure that can be pumped by the pneumatic ballast pump in continuous operation under normal environmental conditions.


Technical parameters of QBY pneumatic diaphragm pump:

Flow: 0-30m3 / h;

Head: 0 to 50 meters;

Caliber: 10-100 mm;

Temperature: -15- + 150 ℃;

Pressure: 0.1-0.7 MPa;

Self-priming height: 5-7 meters.

Model meaning:

QBY50

50-Inlet and Outlet Diameter (mm)

Shanghai Kaiyang Pump Manufacturing Co., Ltd.

Copyright Shanghai ICP No. 13038868

Service Hotline: 400-060-5950

Address: No. 158, Junmin Road, Nanqiao Town, Fengxian District, Shanghai

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