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Latest News, Updates & Articles
Get a handle on your sample
Dopak sampling systems are instantly recognisable by their red indication plate and the Dopak handle. A sign of safety and integrity. Users are reassured that taking a sample with a Dopak sampling system means you will not only get an … [Continue Reading]
Chemical and Industrial Consultants Association
Neil Finney of Derwent James Ltd is the exclusive UK representative for Dopak sampling systems and is a consultant member of The Chemical and Industrial Consultants Association. Neil has over 25 years of experience in the design & supply of … [Continue Reading]
Dopak sampling systems
Derwent James Ltd is the exclusive UK representative for Dopak sampling systems. Manufactured in The Netherlands by Dovianus BV Dopak sampling systems lead the way in providing safe, emission free and representative samples of hazardous liquids, gases and liquified gases. … [Continue Reading]
Vacuum and vessel sampling system
Liquid tank sampling system with externally coupled valves (gearbox). To take representative samples of liquids from reactors at vacuum conditions. Or fixed volume samples of fluids with low vapour pressure independent of process pressure. The Dopak system 32 samplers are … [Continue Reading]
Chemical sampling in the UK – start here
Sampling the UK Chemical Industry in this way is sometimes known as “closed loop sampling”… In other words the taking of a sample from the process into a sealed container without exposing the product to the operator or the environment. … [Continue Reading]
Better than an open pipe and tundish
Are chemical manufacturing companies still sampling hazardous chemicals in ‘open’ ways. Sampling chemical liquids with exposure to the operator and the environment when safe, simple, sampling techniques are readily available. There are many ways better than sampling with an open … [Continue Reading]
Low pressure liquid sampling system (Dopak DPM)
Liquid sampler to take accurate samples of hazardous liquids with low vapour pressure at low process pressure (<8 bar). This Dopak DPM type sampler is a low pressure liquid sampling system built from high quality stainless steel 316. Installation can … [Continue Reading]
Sample cooler
A Dopak single coil, tube shell type chemical sampling cooler is an effective and efficient heat exchanger. This compact sample cooler design makes it easy to install protecting the chemical sampling system from high temperatures ensuring safe chemical sampling in … [Continue Reading]








