Why do we need to measure pressure?
Measuring the pressure of a substance is important in any manufacturing process as this will determine the quality of the product being manufactured. For this reason, accurate measuring instruments are a must – so the pressure can be measured throughout.
How does a pressure gauge work?
Once the pressure gauge is connected to the gear and shaft assembly, this will start to coil and uncoil the inner bourdon tube. The more pressure added the more the internal bourdon tube uncoils. As the pressure increases, you will see the pointer on the front of the screen move in a clockwise motion. As the pressure decreases, this pointer will start to move anti-clockwise allowing you to control the process.
What is the accuracy class of a pressure gauge?The accuracy class is the difference between the true value and the indicated reading expressed on the pressure gauge, as a percentage of full scale span.
What’s the difference between a standard and a safety pattern gauge?The safety pattern gauge is constructed for the gas industry and are therefore designed with the operator of the gauge in mind. When constructed an additional solid baffle wall is welded between the measuring system and the dial. The glass of the dial is also safety glass and in the case of a rupture the back wall will completely blow out.
Why do we fill a pressure gauge?We fill pressure gauges as vibration will cause a pressure gauge to wear rapidly. Furthermore, it will cause the pointer to oscillate making reading of pointer difficult. Filling the gauge with Glycerine, reduces vibration, thereby extending the life of the gauge and making reading easier.
What is ATEX?ATEX is a widespread synonym for the explosion protection directives of the European Union and is derived from the French abbreviation of “Atmosphere Explosible”. There are currently two directives in the field of explosion protection, namely the ATEX product directive, 2014/34/EU, and the ATEX workplace directive, 1999/92/EC.
How to choose the scale of a pressure gauge?
How do I choose the size of my pressure gauge?The important factor when deciding the size of your pressure gauge is that the dial can be easily read once the gauge is installed. We offer a range of different sized gauges (40mm – 250mm!).
What are the most common connection types?Standard pressure gauges can be supplied with NPT, BSP or BSPT connections. These connections are available in stainless steel, brass and monel (wetted parts).
What is the material construction of my pressure gauge?
It is critical that the materials of the gauge’s pressure system are compatible with the media that its measuring.
Typical tube and construction includes:
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