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2018.08.15

Pulse damper selection method

Pulse dampers are widely used in metering pump (dosing pump) pipeline systems and can be roughly divided into three forms: air chamber pulse dampers, diaphragm pulse dampers and air bag pulse dampers. Their selection It differs because of its own structural characteristics and buffering effects.

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Pulse damper selection method

2018.08.15

Metering pump knowledge explanation

Metering pumps are also called quantitative pumps or proportional pumps. The metering pump is a special volumetric pump that can meet the needs of various strict technological processes. The flow rate can be infinitely adjusted within the range of 0-99.99%. It is used to transport liquids (especially corrosive liquids). The metering pump is a type of fluid conveying machinery. Its outstanding feature is that it can maintain a constant flow rate independent of the discharge pressure. The use of metering pumps can complete the functions of conveying, measuring and regulating at the same time, thus simplifying the production process. Using multiple metering pumps, several media can be input into the process flow in accurate proportions for mixing. Due to its own prominence, metering pumps have now been widely used in various industrial fields such as petrochemical, pharmaceutical, and food.

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Metering pump knowledge explanation

2018.08.15

Working principle of back pressure valve Animation diagram

The back pressure valve operates through the elastic force of the built-in spring: when the system pressure is smaller than the set pressure, the diaphragm blocks the pipeline under the action of the spring elastic force; when the system pressure is greater than the set pressure, the diaphragm compresses the spring and the pipeline When connected, the liquid passes through the back pressure valve. The structure of the back pressure valve is similar to that of the one-way valve, but the opening pressure is greater than that of the one-way valve, ranging from 0.1 to 1.0 MPa.

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Working principle of back pressure valve Animation diagram

2018.08.15

Common problems and solutions for metering pump piping systems

Common problems and solutions for metering pump piping systems Question 1: When there is no pressure at the outlet of the metering pump, the actual flow rate of the pump is much larger than the rated flow rate, and when the flow rate is adjusted, the flow rate basically does not change. Solution: Install a back pressure valve at the outlet of the metering pump; while stabilizing the pipeline pressure, the back pressure valve can stabilize the flow of the metering pump and ensure metering accuracy.

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Common problems and solutions for metering pump piping systems

2018.08.15

Safety valve faults and solutions

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Safety valve faults and solutions

2018.08.15

Back pressure valve failure and solutions

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Back pressure valve failure and solutions

2018.08.15

Pulse damper faults and solutions

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Pulse damper faults and solutions
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