Low-Temperature Circulation System
Low‑temperature circulating pump is a low‑temperature liquid circulating device adopting mechanical refrigeration. It can supply low‑temperature liquid and low‑temperature water bath. When combined with instruments such as rotary evaporators, vacuum freeze‑dryers, circulating water multi‑purpose vacuum pumps and magnetic stirrers, it supports multi‑functional chemical reaction operations at low temperatures as well as drug storage. It is also used for effective protection of large‑scale precision instruments and equipment.
Detailed Description
Ⅰ. Applications
The DLSB‑series sealed low‑temperature circulating pump is a low‑temperature liquid circulating device with mechanical refrigeration. It can supply low‑temperature liquid and low‑temperature water bath. When used together with instruments including rotary evaporators, vacuum freeze‑dryers, circulating‑water multi‑purpose vacuum pumps and magnetic stirrers, it enables multi‑functional chemical reaction operations under low‑temperature conditions as well as drug storage. It can effectively protect large‑scale precision instruments and equipment.
Ⅱ. Features
The DLSB‑series sealed low‑temperature circulating pump is our latest product developed in cooperation with universities. It is designed based on similar German and Japanese products and adapted to China’s practical conditions, reaching the advanced international technical level of the 1990s.
- Equipped with original fully‑enclosed compressors from world‑renowned manufacturers, delivering advanced performance and reliable quality.
- Professional relays, protectors, capacitors and other components for the refrigeration unit are imported original high‑quality parts to ensure reliability and service life.
- Digital display temperature control for simple and intuitive operation.
- Multi‑functional performance: it can provide high‑quality low‑temperature cooling water, low‑temperature antifreeze liquid and small‑scale low‑temperature water bath. Matched with circulating‑water multi‑purpose vacuum pumps, vacuum freeze‑dryers, rotary evaporators, magnetic stirrers and other instruments, it supports multi‑functional chemical reaction operations and drug storage under low‑temperature conditions. It can be supporting equipment for various large precision devices, solving the failure of valuable instruments caused by poor cooling water, excessive temperature and unstable water pressure.
- Standard design for 220V 50Hz; voltage and frequency can be customized according to requirements of different countries.
- The circulation system is constructed of stainless steel, featuring anti‑corrosion, rust‑proof and anti‑contamination against low‑temperature liquid.
- For high‑purity metal refining, rare‑material purification, environmental laboratories, magnetron sputtering, vacuum coating equipment and other large valuable experimental facilities, it supplies cooling water that meets both temperature and water quality requirements. It features energy saving, water saving, anti‑pollution and anti‑scaling performance, offering effective protection for large precision instruments and equipment.
- This integrated circulating cooling water unit features compact size and reasonably configured power, realizing outstanding space‑saving performance.
Frequently Asked Questions (FAQ)
What is a Low-Temperature Circulation System?
A: It is a closed-loop mechanical refrigeration device that provides stable low-temperature liquid or water bath. It is widely used with rotary evaporators, vacuum freeze dryers, magnetic stirrers, and precision instruments for low-temperature reactions, cooling, and sample storage.
Q2: What temperature ranges are available?
A: Standard models support -20°C, -30°C, -40°C, -60°C, -80°C, -120°C. The integrated heating-cooling type can reach up to +200°C.
Q3: What applications is it suitable for?
A: Chemical reactions, pharmaceutical storage, laboratory cooling, magnetron sputtering, vacuum coating, precision instrument protection, high-purity metal refining, and environmental testing.
Q4: Can voltage and frequency be customized?
A: Yes. Standard is 220V 50Hz; we can customize 110V/60Hz, 380V/50Hz, etc., according to different countries.
Q5: What material is used for the circulation system?
A: The circulation pipeline and tank are made of stainless steel, which is corrosion-resistant, rust-proof, and anti-pollution.
Service Details

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