In the wave of industrial automation and precision manufacturing, fluid measurement and dosing technology have become the core links to ensure production safety and improve product quality. As a manufacturer of metering pumps, SEKO in Italy has created comprehensive solutions covering water treatment, chemical, food and beverage, pharmaceutical and other fields with over 40 years of technological accumulation and innovative breakthroughs. Its products have redefined the technical standards for fluid addition with a measurement accuracy of ± 1%, a flow regulation range of 1000:1, and a maximum pressure of 64MPa, becoming a customer brand in over 200 countries worldwide.

1、 Technical Core: Integration of Mechanical Precision and Intelligent Control

The core technology of SEKO metering pump originates from the mechanical reciprocating motion principle of positive displacement pump. Taking the motor-driven type as an example, the motor drives the worm gear to rotate through a coupling, and after being reduced by the worm gear, drives the main shaft and eccentric wheel to make rotary motion, thereby driving the bow shaped connecting rod to reciprocate in the sliding adjustment seat. When the plunger moves backwards, a vacuum is formed in the pump chamber, and the suction valve opens to complete the liquid suction; When the plunger is pushed forward, the discharge valve opens to achieve pressure transmission. This process achieves continuous and quantitative fluid control through precision mechanical structures, ensuring precise and controllable dosing of each droplet of liquid.

In terms of driving mode, SEKO provides dual path selection of electromagnetic drive and motor drive. The electromagnetic drive series uses an alternating electromagnetic field to drive the movement of the iron core, drive the diaphragm or plunger to reciprocate, and has the characteristics of simple structure, low energy consumption, and high control accuracy. Typical representatives include the Invikta series, which has a maximum flow rate of 5L/h and a pressure of 7 bar and is suitable for small water treatment equipment; The motor-driven series achieves high flow conveying through mechanical transmission, such as the PS2 series, which can reach a flow rate of 400-1000L/h and a pressure of 20 bar, meeting the large-scale dosing needs of the chemical industry.

2、 SEKO metering pump innovation breakthrough: five technological advantages reshape the industry landscape

Ultra long lifespan diaphragm design

The SEKO composite diaphragm adopts a five 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 nylon fibers, and the fifth layer is covered with EPDM rubber. This design allows the diaphragm to have a lifespan of over 5 years, significantly reducing maintenance costs. For example, in the application of a large water plant, the SEKO diaphragm pump has been running continuously for 3 years without replacing any parts, which has increased its service life by 300% compared to traditional products.

intelligent control system

The digital model is equipped with a microprocessor and mechanical stroke setting function, supporting 4-20mA signal and pulse control, achieving remote monitoring and automatic adjustment. The program menu adopts a multilingual interface, and operators can directly set flow and pressure parameters through the touch screen, and view the running status in real time. In the pharmaceutical industry, this system can accurately control drug ratios to ensure batch consistency.

Modular rapid maintenance

All products in the series adopt modular design, and components such as pump heads, diaphragms, and one-way valves can be quickly disassembled and replaced without the need for welding or professional tools. For example, the pump head replacement of MS1 mechanical diaphragm pump only takes 5 minutes, which shortens downtime by 80% compared to traditional products. The fully sealed casing meets the IP65 protection level and is suitable for humid and corrosive environments.

Adaptability to working conditions

The pump body materials include PVC, PP, SS316, PVDF, etc., which can withstand temperatures ranging from -30 ℃ to 450 ℃ and fluids with viscosity of 0-800mm/s. In the oil and gas industry, SEKO high-pressure pumps can transport liquid and other supercritical fluids with a pressure of up to 64MPa; In the field of food and beverage, its sanitary pump head meets FDA standards and can directly come into contact with food additives.

Wide flow regulation capability

Through frequency conversion control and mechanical stroke adjustment, the SEKO pump achieves a flow range coverage of 0.1-20000L/h, with a regulation ratio of up to 1000:1. For example, in the dosing system of a sewage treatment plant, the same pump can dynamically adjust the dosage of flocculant according to the incoming water quality to avoid wastage of chemicals.

Its metering pump is not only a device, but also a bridge connecting efficiency and safety, quality and cost in the era of Industry 4.0. With the deep integration of the Internet of Things and artificial intelligence technology, SEKO is continuously expanding the application boundaries of fluid addition at a rate of 15 new products launched annually, injecting strong impetus into global industrial upgrading.