Characteristic Of Metering Pump

plunger

1. Low price

2. The flow rate can be up to 76 meters and 3/ hour, with the flow rate within 10 percent to 100 percent, the measurement accuracy can be up to 1 percent, and the pressure can reach 350 mpa. When the outlet pressure changes, the flow rate is almost constant.

3. Capable of conveying high viscosity medium, not suitable for conveying corrosive slurry and hazardous chemicals.

4. The shaft seal is packing seal, which has leakage and needs to adjust the packing periodically. The packing and plunger are easy to wear, and the packing ring shall be subjected to pressure washing and discharge.

5. No safety discharge device.

Mechanical diaphragm

1. The price is lower.

2. No moving seal, no leakage.

3. Capable of conveying high viscosity medium, abrasive slurry and hazardous chemicals.

4. The diaphragm is subjected to high stress and the diaphragm life is low.

5. The outlet pressure is less than 2 mpa and the flow rate is small; The measurement accuracy is plus or minus 5 percent. When the pressure is small to large, the flow rate can change up to 10 percent.

6. No safety discharge device.

Hydraulic diaphragm

1. No moving seal, no leakage, safety discharge device, easy maintenance.

2. Pressure can reach 35 mpa; The measurement accuracy can be up to one percent or one percent within the range of 10. For every 6.9 MB increase in pressure, the flow rate decreased by 5 to 10 percent.

3. High price.

4. Suitable for medium viscosity medium.