1、 Working principle: Mechanical art of precision design

The core working principle of SEKO metering pump is based on the mechanical reciprocating motion of positive displacement pump. The motor drives the worm through the coupling, and through the reduction of the worm gear, the main shaft and the eccentric rotate and move back and forth in the sliding adjustment seat of the bow shaped connecting rod driven by the eccentric wheel.

When the plunger moves backwards, a vacuum gradually forms in the pump chamber, the suction valve opens, and the liquid is sucked into the pump chamber; When the plunger moves forward, the suction valve closes and the discharge valve opens, and the liquid is discharged under the push of the plunger. This precision designed reciprocating motion forms a continuous, pressurized, and quantitative fluid transport.

It is mainly divided into two types: electromagnetic drive and motor drive. The electromagnetic driven metering pump adopts advanced electromagnetic drive technology, which drives the iron core to move through an alternating electromagnetic field, thereby driving the diaphragm or plunger to perform reciprocating motion. This design has a simple structure, low energy consumption, and precise control, making it particularly suitable for low flow, low-pressure application scenarios.

2、 Product series and technical features:

Invikta series: an electromagnetic driven metering pump based on microprocessor technology, easy to operate, durable, with a maximum flow rate of 5L/H and a maximum pressure of 7 bar, suitable for original equipment manufacturers, swimming pools, car wash plants and other occasions.

Tekna EVO series: a fully functional and reliable electromagnetic driven metering pump with a maximum flow rate of 54L/H and a maximum pressure of 20 bar. This series offers multiple models including AKS (manual adjustment), AKL (with liquid level probe interface), APG (supporting external signal adjustment), etc.

Spring series: including PS1, PS2 plunger metering pumps and MS1, MS0 mechanical diaphragm metering pumps. The flow range of PS1 series is 1.5-304L/H, with a maximum pressure of 20 bar; The PS2 series can achieve a flow rate of 400-1000L/H; The flow rate of MS1 mechanical diaphragm pump is 5.5-460L/H, with a maximum pressure of 10bar.

Its technological advantages are significant. Its measurement accuracy is as high as ± 1%, far exceeding the industry average level. The flow regulation range is wide, up to 1000:1, with a flow range of 0.1-20000L/h and a maximum discharge pressure of 64Mpa. The pump body materials are diverse, including PVC, PP, SS316, PVDF, etc., which can adapt to various chemical environments.

3、 Innovative Design and Core Technologies

Multiple innovative technologies have been integrated into the design. Its diaphragm design is particularly outstanding, using pure solid PTFE material or composite structure, with an ultra long service life. For example, the service life of certain models of diaphragms can exceed 5 years, significantly reducing maintenance costs. The composite diaphragm adopts a multi-layer structure: the first layer is a super tough Teflon acid resistant film, the second layer is EPDM elastic rubber, the third layer is a thickness supported iron core, the fourth layer is reinforced with reinforced nylon fibers, and the fifth layer is covered with EPDM elastic rubber, which greatly improves the service life of the diaphragm.

The intelligent control system is another major highlight. Supporting remote monitoring and adjustment, it can directly respond to external 4-20mA signals and pulse control signals to achieve automated control. The digital model is equipped with a microprocessor and mechanical stroke setting function, which can ensure dosing accuracy through proportional adjustment. The program menu adopts a functional display mode, supports multiple languages, and has a user-friendly interface.

The SEKO metering pump also adopts a modular design, with components that are easy to replace and do not require welding, greatly improving maintenance convenience. The fully sealed shell reaches IP65 protection level and is made of glass fiber reinforced PP material, suitable for various harsh working environments.

4、 Application Fields and Typical Cases

The application range of SEKO metering pumps is very wide. In the field of water treatment, precise dosing of chemicals such as chlorine gas, ammonia water, acid-base regulators, etc. is used in scenarios such as water supply, wastewater treatment, and disinfection of drinking water. In the chemical industry, it is used for the quantitative transportation and dosing of chemicals such as acids, bases, and solvents.

In the food and beverage industry, SEKO pumps are used to add food additives, essence, spices and nutrients in the food production process, meeting the requirements of health standards. In the pharmaceutical industry, it is used for precise dosing of drugs, nutrient solutions, etc. to ensure the accuracy and consistency of drug production.

In addition, it is applied in environmental protection fields such as waste gas treatment and wastewater disinfection in the environmental protection industry. In the field of cleaning and hygiene, SEKO also offers a range of products for dishwashing, laundry, proportioning and surface cleaning, widely used in tourism and hotel catering industries, sanitary equipment, industrial washing machines and other fields.

5、 Maintenance and troubleshooting

Although it is designed to be reliable, proper maintenance can further extend its lifespan. The common problem of reduced flow is usually caused by pipeline blockage or liquid crystallization. The solution includes checking the diaphragm and one-way valve to ensure that the oil replenishment valve is not blocked, and checking whether the deceleration component is aging or damaged.

Regular maintenance should check for any abnormal impact sounds during operation, as well as any abnormal decrease or increase in oil in the hydraulic oil tank. Regular maintenance and upkeep can ensure the long-term stable operation of the metering pump.

SEKO metering pumps have performed outstandingly in various engineering projects worldwide due to their high precision, reliability, innovative design, and wide applicability. With the continuous improvement of industrial automation, the requirements for fluid measurement accuracy are becoming increasingly strict. SEKO metering pumps will continue to leverage their technological advantages to provide safe, efficient, and reliable fluid dosing solutions for various industries.

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