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Designed and manufactured in line with the petrochemical industry standard SH/T 0066 (Engine Coolant Foam Tendency Test Method), the DFYF‑178 is suitable for testing both concentrates and ready‑to‑use engine coolants.
Key Advantages
High precision and reliable performance
Simple operation that reduces manual steps
Digital temperature control with clear display and ±0.1°C accuracy
Structure & Working Principle
The tester consists of a bath, heating unit, temperature controller, gas supply system, and sample container. Its compact design ensures easy operation.
The digital temperature controller maintains the bath temperature by activating the heater via a solid‑state relay when the actual temperature falls below the set point. A stirrer ensures uniform temperature distribution throughout the bath.
An air pump, flow meter, and gas diffusion head deliver a controlled airflow into the graduated cylinder containing the sample. The built‑in timer allows convenient measurement of both the foam volume and the foam disappearance time.
Technical Parameters
| Parameter | Value |
|---|---|
| Power supply | AC220V±10% 50Hz |
| Heating power | 2 kW |
| Temperature range | Room temperature ~ 99.9°C |
| Temperature accuracy | ±0.1°C |
| Flow rate | 1000 ± 25 ml/min |
Why Choose Us
We focus on long‑term customer relationships by providing efficient after‑sales service – including training, maintenance, and technical support. Our experienced team combines deep industry expertise with continuous innovation, ensuring that both our instruments and services remain at the forefront.
About Dalian Analytical Instrument Factory
With nearly 40 years of production experience, we are a professional manufacturer of analytical instruments for petroleum products. We possess complete production and testing equipment and a strong technical workforce, offering over 100 varieties of petroleum analysis instruments and general laboratory equipment.
In 2002, we obtained ISO 9001 (2000) quality management system certification. This guarantees reliable quality assurance in the design, production, and service of high‑temperature and low‑temperature instruments for gasoline, kerosene, diesel, lubricating oils, as well as general constant‑temperature instruments for laboratories.
We provide free technical documentation, operation demo videos, and a detailed quotation within 24 hours.
📧 Sales email: lovecarlos2000@gmail.com
📞 24‑hour hotline: +86 159 4115 6556
Contact us directly – no auto‑attendants, just technical support.
