Yuan Zongjiu: Pumping technology in the future development of the four directions

The picture shows Yuan Zongjiu in China (Wenzhou) Valve Industry Development Strategy Forum On October 12, 2005, at China (Wenzhou) Valve Industry Development Strategy Forum, Yuan Zongjiu, director of Shenyang Pump Research Institute, pointed out that from a long-term perspective , The domestic pump enterprises should develop to the following four directions, first of all should take the road of the Group, to the direction of large-scale development, research and development in the power station, petrochemical, water conservancy projects in three areas of large pumps. Second, from foreign experience, we should further enhance the overall level of mechanical and electrical integration, small household pumps are out of a solid step; third, the pump should be standardized, serialized, universal direction, and finally, Development of multi-species, multi-purpose pump should also become the direction of technological development in the next few years. Yuan Zongjiu Background: Shenyang Pump Research Institute, vice chairman of China Pump Association, the National Industrial Pump Quality Supervision and Inspection Center. HC Network Valve Channel Valve Industry Development Strategy Forum as the network partner media participated in the meeting, and made a live broadcast of the meeting.

Chemical Industry Mass Flow Meter

Sealand is a professional supplier of Chemical Mass Flow Meter, Chemical Mass Flowmeter, Chemical Flowmeter, Chemical Flow Meter, Chemical Coriolis Meter, ATEX, IECEx & CE approved.


The meter can work with a pulse receiver(Count). The connection is as follows. The resistance value is up to the cable length & the max. input pulse frequency of receiver. Current 10mA is suitable for most receivers; however, you can reduce the resistance value when the cable is long. The max. current could be 50mA. Please use the fixed frequency output function to check if the cable length & resistance value is suitable.

Please check following items before operation, and operate according to relevant rules. a) If the meter is damaged during shipment and installation;
b) If the voltage is same as marked on nameplate;
c) If the fuse is correct;

d) If the meter is grounded properly.
e) If the Meter SN on the nameplate of sensor and transmitter are the same.
If everything is fine, please open all valves, make the pipeline full of liquid and then power on the meter for warm-up for 20min before operation. Finally, conduct zero calibration after first start, and shall do it again if the meter is moved to another site.
Preparation for zero calibration:
a) Power on the meter for approximately 20min for warm-up;
b) Run the process fluid through the sensor until the sensor temperature reaches the normal process operating temperature.
c) Close the shutoff valve downstream from the sensor.
d) Ensure that the sensor is filled with fluid and the process flow has completely stopped.


Chemical Mass Flow Meter, Chemical Mass Flowmeter, Chemical Flowmeter, Chemical Flow Meter, Chemical Coriolis Meter

Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com