How to choose the right HYDRAULIC GEAR PUMP

We are generally in a dilemma when faced with the purchase of key items in our daily life. The purchase of HYDRAULIC GEAR PUMP as a key component is also very important. Let's take a look at how to choose a suitable HYDRAULIC GEAR PUMP according to the HYDRAULIC GEAR PUMP selection principles and basic selection conditions.

Here is the content list:

• Choose according to the application

• DETERMINATION OF THE TYPE AND CHARACTERISTICS OF THE HYDRAULIC GEAR PUMP

• Determine the number and reserve ratio of HYDRAULIC GEAR PUMP

Choose according to the application

First, according to the layout of the device, terrain conditions, water level conditions, and operating conditions, determine the choice of horizontal, vertical, and other types (pipeline, submersible, submerged, non-clogging, self-priming, gear, etc.) HYDRAULIC GEAR PUMP. Then according to the properties of the liquid medium. If the HYDRAULIC GEAR PUMP is installed in the explosion area, the corresponding explosion-proof motor should be used according to the explosion area grade. You can also choose a single-suction HYDRAULIC GEAR PUMP or double-suction HYDRAULIC GEAR PUMP according to the flow rate; according to the height of the head, choose a single-stage HYDRAULIC GEAR PUMP or multi-stage HYDRAULIC GEAR PUMP, high-speed HYDRAULIC GEAR PUMP or low-speed HYDRAULIC GEAR PUMP, multi-stage HYDRAULIC The efficiency of GEAR PUMP is lower than that of single-stage HYDRAULIC GEAR PUMP. If single-stage HYDRAULIC GEAR PUMP and multi-stage HYDRAULIC GEAR PUMP can also be used, firstly choose single-stage HYDRAULIC GEAR PUMP.

DETERMINATION OF THE TYPE AND CHARACTERISTICS OF THE HYDRAULIC GEAR PUMP

After confirming the specific model of HYDRAULIC GEAR PUMP and which series of HYDRAULIC GEAR PUMP to choose, you can press the maximum flow rate (when there is no maximum flow rate, usually 1.1 times the normal flow rate can be taken as the maximum flow rate), and the amplification is 5%-10% The head after the allowance is the two main parameters of performance, and the specific model is determined on the type spectrum or series characteristic curve. Use the characteristic curve of HYDRAULIC GEAR PUMP to find the required flow value on the abscissa and the required head value on the ordinate, draw a vertical line or a horizontal line from the two values respectively, and the intersection point of the two lines just falls on the characteristic curve, then the HYDRAULIC GEAR PUMP is the HYDRAULIC GEAR PUMP to be selected. After the HYDRAULIC GEAR PUMP model is determined, the physical and chemical medium of the water HYDRAULIC GEAR PUMP or the conveying medium is similar to water. You need to go to the relevant product catalog or sample. Make corrections according to the performance table or performance curve of the model to see if the normal working point falls in the priority working area of the HYDRAULIC GEAR PUMP.

Determine the number and reserve ratio of HYDRAULIC GEAR PUMP

Generally, only one HYDRAULIC GEAR PUMP is used for normal operation, because one large HYDRAULIC GEAR PUMP is equivalent to two small HYDRAULIC GEAR PUMP working in parallel (referring to the same lift and flow rate), and the efficiency of the large HYDRAULIC GEAR PUMP is higher than that of the small HYDRAULIC GEAR PUMP, so from the point of view of energy saving, it is better to choose one large HYDRAULIC GEAR PUMP instead of two small HYDRAULIC GEAR PUMP, but in the following situations, two HYDRAULIC GEAR PUMP can be considered for parallel cooperation. When selecting a HYDRAULIC GEAR PUMP, it is necessary to comprehensively consider the working pressure, flow rate, speed, quantitative or variable, variable mode, volumetric efficiency, total efficiency, life and the type of prime mover, noise, pressure pulsation rate, self-priming capacity, etc., and also consider Compatibility with hydraulic oil, size, weight, economy, maintainability, etc.

If you are interested in HYDRAULIC GEAR PUMP, you can contact us. Our website is www.zjkeister.com. Welcome and look forward to cooperating with you.