Back to Overview

Working principle and application of backflow sampler

Mar 11,2026

   Backflow sampler plays a crucial role in the smelting and casting processes of molten iron. Its main function is to obtain samples from high-temperature molten iron for composition analysis and quality control. Its working principle is based on the negative pressure principle, which creates negative pressure inside the sampler, causing the molten iron to automatically flow into the sampler under the action of gravity. Samplers are typically made of high-temperature resistant materials to ensure their stability and safety under extreme conditions. When using a reverse flow sampler, operators need to ensure the sealing and cleanliness of the sampler to prevent external impurities from affecting the accuracy of the sample.

    In practical applications, the reverse flow sampler can not only be used for sampling, but also for obtaining molten iron samples at different stages and locations by adjusting the sampling time and sampling position. The analysis of the chemical composition and physical properties of these samples can help smelters optimize production processes, improve the quality and yield of molten iron. In addition, the use of backflow samplers can reduce the risk of manual sampling and improve the safety and efficiency of sampling. Therefore, the reverse flow sampler has become an indispensable equipment in the modern metallurgical industry, widely used in major steel plants, foundries and other fields, helping the technological progress and development of the industry.

Contact Us

Phone: +86-315-8566505

Email:calor@euryusense.com

Whatsapp:+86 15102582032

Add:Lihaozi village, Qianying Town, Fengnan District, Tangshan City, Hebei province