derwent james safety equipment & consultancy

Providing outstanding safety equipment, consultancy and expertise for your company.
Because safety is a necessity, not a commodity

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process industry safety

Latest News, Updates & Articles

Zenex Safety Padlock

The Zenex safety padlock is available in the UK for fast delivery to your site.  We work with our partners at Total Lockout to bring to you the best in lockout tagout safety equipment. Zenex safety padlocks are corrosion resistant, … [Continue Reading]

zenex safety padlock

Dopak sample bottle part numbers

Dopak sampling systems can use a sampling bottle of a variety of sizes, materials and set sizes. The below tables contain Dopak sample bottle part numbers to help your search for the correct part number.  Use the below tables as … [Continue Reading]

dopak sample bottles

Spare parts for Dopak sampling systems

In order to maintain your Dopak sampling system in the best condition spare parts are available.  Part numbers and specifications are below. Ball Valves Needle assemblies No bottle no flow *NEW Sleeves Gearbox Handles Spring return handles Regulators Gauges Carbon … [Continue Reading]


Hastelloy sampling system

Sampling chemicals in the process industry can be a hazardous task, especially when the chemical in question is particularly corrosive.  Its important to select the correct material of construction for your sampling system such as a hastelloy sampling system. Here … [Continue Reading]

hastelloy sampling system

Grab sampling systems for safety in the chemical industry

Sampling of chemical liquids and gases in the process industry is described in many ways, closed loop sampling, grab sampling systems or just sample valves.  However it is described the same quality control methods should be employed to ensure not … [Continue Reading]

Grab sampling system

Privacy Policy 2018

As part of the new General Data Protection Regulation (“GDPR”), that comes into effect on May 25, 2018, Derwent James Ltd. assures you that your personal data will be stored securely and it will not be shared with any third … [Continue Reading]

uk process industry safety equipment

Inline sampling | PFA lined | sampling system

The Dopak DPT inline sampling valve is manufactured from stainless steel and has PFA lined wetted parts. Designed to take an accurate representative sample directly from a process pipeline. Safely first time is achieved without spills. The spring return lever … [Continue Reading]

PFA lined inline sampling valve

Chemical sampling systems

We are proud to be the exclusive UK agent for Dopak chemical sampling systems. The expert suppliers of hazardous chemical sampling systems. Dopak sampling systems for hazardous chemicals improve safety. Reduce spills. Using the patented Dopak needle assembly. Safe chemical … [Continue Reading]

Sampling Express

Providing outstanding safety equipment, consultancy and expertise for your company.
Because safety is a necessity, not a commodity