UKEX and ATEX - a tale of two markets We outline below our understanding of how Brexit has affected selling equipment for use in potentially explosive atmospheres within the UK and the EU. A potentially explosive atmosphere Following Brexit, it became clear that two parallel conformity assessment programmes were going to be necessary [...]
Skydrol aerospace hydraulic fluid is fire resistant and retains a low viscosity at the very low temperatures at altitudes of 10,000 metres and higher. Both are big things for aviation and aerospace. It is used in aircraft hydraulic systems in place of hydraulic mineral oils. For example, the braking [...]
Just a quick online search for manual two speed hydraulic hand pumps (or “two stage hand pumps)will show up a multitude of different options currently on the market. Many of these workhorses have been around for more than 50 years. There are 700 bar oil hydraulic pumps by the dozen from all the big [...]
What will a Hydrostatic Pressure Test Certificate say? If you look at the simplest form of a hydrostatic pressure test certificate, it will state a medium plus a pressure, then go on to declare that on a certain date that the part (whether it is a hose, pressure vessel or whatever) was taken up to [...]
How to hydrostatic pressure test Tips from 35 years of Hydrostatic Pressure Testing expertise Our Micropac MP series pressure test pump offers a good quality and lightweight unit that will last for years. This is what we have learnt over 35 years of manufacturing our Micropac pumps for pressure testing Professionals. Whether you [...]
How a Risk Assessment for Pressure Testing is an essential first step. We have provided here a typical Risk Assessment for Pressure Testing. Just like every other activity in the workplace, you must assess risk. Because we are using a pressurised system, there are real risks through failure of the test piece, the system itself [...]
Guidance on how to Hydrostatic Test and a sample procedure. A Micropac “Duo” combination Air Driven and Manual hydrostatic pressure test pump unit is a very neat solution. The 50 litre 316 trolley unit shown here is used continually in a petrochemical plant. Firstly, a hydrostatic test is the same as a hydrostatic [...]
This is what we have learnt about fitting hydraulic seals into our pumps. They will be relevant to most other hydraulic equipment. We will add to it and are always happy to receive feedback. Contents: Three tips for easy hydraulic sealing before you start. Things to beware when you’re stripping hydraulics down! Our five big [...]
How picking the right elastomeric hydraulic seal material is more than just chemistry and a catalogue. Use a seal material catalogue Useful elastomer materials What to watch out for Formulations change over time Specialist compounds Shelf life Machined seals Talk to an applications engineer After 30 years, Sarum Hydraulics knows quite a lot about seals [...]
We use these capped piston rod bearing seals extensively. Trelleborg call this type of seal a “stepseal”, although lots of people produce their own versions. Why do we like them? They offer extended life, cope with fluids with poor lubricity and allow you to easily swap the elastomeric O ring that fits under them to [...]
