Differential gauges and duplex pressure gauges are designed for the oil and gas, alternative fuels, chemical, HVAC, refrigeration and air handling industries . Differential pressure and duplex pressure gauges are for measuring two applied pressures; high and low pressure and static process pressures.
What are pressure gauges used for?
Pressure gauge, instrument for measuring the condition of a fluid (liquid or gas) that is specified by the force that the fluid would exert, when at rest, on a unit area, such as pounds per square inch or newtons per square centimetre.
Where in industry are pressure gauges most frequently used?
Applications – Gauge pressure measuring devices are the most widely used pressure measuring instruments for industrial purposes, particularly in power, refineries, chemical, petrochemical, pharmaceutical, food, refrigeration, air-conditioning and sanitation industries .
What is gauge pressure and where is it used?
In vacuum applications, gauge pressure measurement and control can be used to accurately ventilate a vacuum chamber to atmospheric pressure and prevent particulate contamination when opening to the atmosphere. Such practice is also used in semiconductor load lock applications.
Where are gauges used?
Gauge, also spelled gage, in manufacturing and engineering, a device used to determine, either directly or indirectly , whether a dimension is larger or smaller than another dimension that is used as a reference standard.
What are the types of pressure gauges?
- Bourdon Tube Pressure Gauge. A Bourdon tube pressure gauge has an elastic tube that is soldered or welded on one end into a socket. ...
- Diaphragm Pressure Gauge. ...
- Capsule Pressure Gauge. ...
- Absolute Pressure Gauge. ...
- Differential (DP) Pressure Gauge. ...
- Bellows Pressure Gauge. ...
- Piezometer Pressure Gauge. ...
- Case.
How do pressure gauges work?
Bourdon tubes function by taking the pressure and converting it into mechanical energy . This energy moves a dial in the gauge, displaying the current amount of pressure in the system. ... As pressure increases inside the tube, the force of the fluid attempts to straighten out the curved tube.
How many types of gauges are there?
All gauges can be divided into four main types , independent of their actual use.
How do you read vacuum pressure?
Vacuum gauge is measured from ambient air pressure in the negative direction . So for example at ambient air pressure the vacuum reading is 0 bar gauge and if a suction pressure of 0.25 bar is applied, the vacuum reading will be -0.25 bar gauge.
What is the importance of accurately reading the pressure gauge?
Pressure gauges are crucial components of most processing systems. In these environments, a pressure gauge needs to be reliable, accurate and easy to read to help prevent failure in everyday operations . Therefore, how a gauge is constructed and tested is extremely important for reliability, safety and peace-of-mind.
What is gauge pressure in simple words?
Gauge pressure is the pressure relative to atmospheric pressure ; it is positive for pressures above atmospheric pressure, and negative for pressures that are below atmospheric pressure. The atmospheric pressure adds to the pressure of any fluid that is not enclosed.
How do you find gauge pressure?
Gage pressure is indicated by p g , and is related to absolute pressure as follows: p g = p – p a , where p a is the local atmospheric pressure . Example: A car tire gauge measures a tire pressure of 32.0 psi. The local atmospheric pressure is 14.2 psi.
What is called gauge pressure?
Gauge pressure, also called overpressure , is the pressure of a system above atmospheric pressure. Gauge pressure is zero-referenced against ambient air (or atmospheric) pressure, so gauge pressure readings include the pressure from the weight of the atmosphere.
What is Agauge?
To gauge is to measure or test . The verb gauge means to estimate or measure, while the noun gauge is a tool you can use to make such a measurement. ... The thickness, or diameter, of an item like wire (or the barrel of a gun) is another meaning of gauge.
How many types of railway gauges are there?
There are mainly four types of railway gauge used in India, which are: Broad gauge, Narrow gauge, Standard gauge (for Delhi Metro), and Meter Gauge. Broad Gauge: A broad-gauge is also known as a wide gauge or large line. The distance between the two tracks in these railway gauges is 5 ft 6 in (1676 mm).
What are limit gauges?
“Limit gauging is a method of checking dimensions in which a fixed gauge is applied to the work in order to determine whether a given component lies within its limits .” Gauges are inspection tools of rigid design, without a scale, which used to check the dimensions of manufactured components.
