# \#pressure **URL:** https://forumautomation.com/tag/pressure/11.md [Latest](https://forumautomation.com/latest.md) · [Categories](https://forumautomation.com/categories.md) · [Tags](https://forumautomation.com/tags.md) --- ## [Explain the Benefits of the 2080-LC20-20QBB Controller in Industrial Automation](https://forumautomation.com/t/explain-the-benefits-of-the-2080-lc20-20qbb-controller-in-industrial-automation/11670)
**Author:** [@shraddha123](https://forumautomation.com/u/shraddha123)\ **Replies:** 1\ **Last updated:** [June 6, 2026, 5:50am UTC](https://forumautomation.com/t/explain-the-benefits-of-the-2080-lc20-20qbb-controller-in-industrial-automation/11670 "2026-06-06T05:50:17Z")
The selection of an appropriate control system may have a significant impact on improving productivity, streamlining procedures, and guaranteeing uninterrupted operations in the quickly changing field of industrial aut… --- ## [Pressure Conversion Table](https://forumautomation.com/t/pressure-conversion-table/10585)
**Author:** [@Ajmal\_ismail](https://forumautomation.com/u/Ajmal_ismail)\ **Replies:** 0\ **Last updated:** [August 13, 2022, 4:03am UTC](https://forumautomation.com/t/pressure-conversion-table/10585 "2022-08-13T04:03:45Z")
Pressure Conversion Table (approximate values) Bar mWG kPa MPa psi 0.5 bar 5 mWG 50 kPa 0.05 MPa 7.25 psi 1 bar 10 mWG 100 kPa 0.10 MPa 14.5 psi 2 bar 20 mWG 200 kPa 0.20 MPa 29 psi 3 bar 30 mWG 300 kPa 0… --- ## [Pressure Gauge Selection Tips](https://forumautomation.com/t/pressure-gauge-selection-tips/13056)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [February 25, 2025, 2:00pm UTC](https://forumautomation.com/t/pressure-gauge-selection-tips/13056 "2025-02-25T14:00:22Z")
Selection Tips of pressure gauge Pressure gauge must be selected in terms of scale range and design. The scale range is optimally selected when the operating pressure lies in the middle third of the scale range. The … --- ## [What is Pressure? How is it Measured?](https://forumautomation.com/t/what-is-pressure-how-is-it-measured/12989)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\ **Replies:** 0\ **Last updated:** [January 31, 2025, 3:02pm UTC](https://forumautomation.com/t/what-is-pressure-how-is-it-measured/12989 "2025-01-31T15:02:34Z")
What is Pressure? Pressure is the amount of fence measured as force per unit area. Pressure is defined as the ratio of forces perpendicular to the surface. Inside fluids, pressure is caused by the weight of the liquid ab… --- ## [What is the difference between absolute and gauge pressures when measuring gas or fluid pressures in a container such as a tank or open pipe?](https://forumautomation.com/t/what-is-the-difference-between-absolute-and-gauge-pressures-when-measuring-gas-or-fluid-pressures-in-a-container-such-as-a-tank-or-open-pipe/12845)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 21, 2024, 3:25pm UTC](https://forumautomation.com/t/what-is-the-difference-between-absolute-and-gauge-pressures-when-measuring-gas-or-fluid-pressures-in-a-container-such-as-a-tank-or-open-pipe/12845 "2024-11-21T15:25:35Z")
What is the difference between absolute and gauge pressures when measuring gas or fluid pressures in a container such as a tank or open pipe? --- ## [Can you provide some examples of liquids that are used in U-tube manometers?](https://forumautomation.com/t/can-you-provide-some-examples-of-liquids-that-are-used-in-u-tube-manometers/12538)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [September 9, 2024, 2:21pm UTC](https://forumautomation.com/t/can-you-provide-some-examples-of-liquids-that-are-used-in-u-tube-manometers/12538 "2024-09-09T14:21:18Z")
Can you provide some examples of liquids that are used in U-tube manometers? --- ## [How does pressure change with every 10 meters of depth underwater?](https://forumautomation.com/t/how-does-pressure-change-with-every-10-meters-of-depth-underwater/12330)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 3, 2024, 9:02am UTC](https://forumautomation.com/t/how-does-pressure-change-with-every-10-meters-of-depth-underwater/12330 "2024-08-03T09:02:57Z")
How does pressure change with every 10 meters of depth underwater? --- ## [Why is it not possible to measure absolute vacuum or absolute pressures using barometers, which are based on atmospheric pressures?](https://forumautomation.com/t/why-is-it-not-possible-to-measure-absolute-vacuum-or-absolute-pressures-using-barometers-which-are-based-on-atmospheric-pressures/12328)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 3, 2024, 8:47am UTC](https://forumautomation.com/t/why-is-it-not-possible-to-measure-absolute-vacuum-or-absolute-pressures-using-barometers-which-are-based-on-atmospheric-pressures/12328 "2024-08-03T08:47:05Z")
Why is it not possible to measure absolute vacuum or absolute pressures using barometers, which are based on atmospheric pressures? --- ## [What are the common maintenance practices for ensuring the longevity of directional control valves?](https://forumautomation.com/t/what-are-the-common-maintenance-practices-for-ensuring-the-longevity-of-directional-control-valves/12269)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [July 21, 2024, 7:28am UTC](https://forumautomation.com/t/what-are-the-common-maintenance-practices-for-ensuring-the-longevity-of-directional-control-valves/12269 "2024-07-21T07:28:54Z")
What are the common maintenance practices for ensuring the longevity of directional control valves? --- ## [What is the difference between high pressure valve and low pressure valve air compressor?](https://forumautomation.com/t/what-is-the-difference-between-high-pressure-valve-and-low-pressure-valve-air-compressor/12218)
**Author:** [@automation\_engineer6](https://forumautomation.com/u/automation_engineer6)\ **Replies:** 1\ **Last updated:** [June 28, 2024, 10:20am UTC](https://forumautomation.com/t/what-is-the-difference-between-high-pressure-valve-and-low-pressure-valve-air-compressor/12218 "2024-06-28T10:20:42Z")
What is the difference between high pressure valve and low pressure valve air compressor? \* --- ## [What is the pressure in instrument air supply?](https://forumautomation.com/t/what-is-the-pressure-in-instrument-air-supply/12185)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 1\ **Last updated:** [June 26, 2024, 1:23pm UTC](https://forumautomation.com/t/what-is-the-pressure-in-instrument-air-supply/12185 "2024-06-26T13:23:09Z")
What is the pressure in instrument air supply? --- ## [How does a diesel oil thermal oil heater](https://forumautomation.com/t/how-does-a-diesel-oil-thermal-oil-heater/12004)
**Author:** [@Crystal\_Yuan](https://forumautomation.com/u/Crystal_Yuan)\ **Replies:** 1\ **Last updated:** [April 25, 2024, 2:56pm UTC](https://forumautomation.com/t/how-does-a-diesel-oil-thermal-oil-heater/12004 "2024-04-25T14:56:31Z")
A diesel oil Thermal Oil Heater operates by heating diesel oil to a high temperature and circulating it through a closed-loop system to transfer heat to a variety of applications. Here’s how it works: Fuel Combustio… --- ## [What is the difference between gauge and absolute pressure transmitter?](https://forumautomation.com/t/what-is-the-difference-between-gauge-and-absolute-pressure-transmitter/11596)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 16, 2023, 5:39pm UTC](https://forumautomation.com/t/what-is-the-difference-between-gauge-and-absolute-pressure-transmitter/11596 "2023-11-16T17:39:38Z")
Navigate the intricate world of pressure measurement with a comprehensive understanding of gauge and absolute pressure transmitters. This guide delves into the fundamental differences between these two types of trans… --- ## [Hydraulic Accumulator - Temperature Effect on Nitrogen Pre-Charge](https://forumautomation.com/t/hydraulic-accumulator-temperature-effect-on-nitrogen-pre-charge/11431)
**Author:** [@dstuart82](https://forumautomation.com/u/dstuart82)\ **Replies:** 0\ **Last updated:** [August 24, 2023, 2:43pm UTC](https://forumautomation.com/t/hydraulic-accumulator-temperature-effect-on-nitrogen-pre-charge/11431 "2023-08-24T14:43:24Z")
Good Afternoon, I am currently studying for a degree in Instrumentation, Measurement & Control. As part of my learning, I have been askedto write a paper which discusses the effect (if any) that outside temperature has o… --- ## [Tubing Selection/ Sizing](https://forumautomation.com/t/tubing-selection-sizing/11294)
**Author:** [@PEC\_E\_I-2](https://forumautomation.com/u/PEC_E_I-2)\ **Replies:** 0\ **Last updated:** [July 6, 2023, 10:58am UTC](https://forumautomation.com/t/tubing-selection-sizing/11294 "2023-07-06T10:58:07Z")
I am required to select tubing size and thickness which is to be laid from SSV/ SCSSV to WHCP. Tubing Material is A-213. Shut-in Pressure of Wellhead is 750 Psig. I do not know the hydraulic pressure though. Now how can … --- ## [Pneumatic signal & How to modify a transmitter?](https://forumautomation.com/t/pneumatic-signal-how-to-modify-a-transmitter/10975)
**Author:** [@Sudha\_m](https://forumautomation.com/u/Sudha_m)\ **Replies:** 0\ **Last updated:** [March 16, 2023, 2:33am UTC](https://forumautomation.com/t/pneumatic-signal-how-to-modify-a-transmitter/10975 "2023-03-16T02:33:58Z")
Pneumatic Instrument For industrial pneumatic devices, the most typical air pressure range is 3 to 15 PSI. The low end of the process measurement scale is represented by an output pressure of 3 PSI, while the high end… --- ## [11 things to look while choosing oxygen analyzer for oxygen concentrator -](https://forumautomation.com/t/11-things-to-look-while-choosing-oxygen-analyzer-for-oxygen-concentrator/9450)
**Author:** [@wavevisions98](https://forumautomation.com/u/wavevisions98)\ **Replies:** 0\ **Last updated:** [May 31, 2021, 5:00am UTC](https://forumautomation.com/t/11-things-to-look-while-choosing-oxygen-analyzer-for-oxygen-concentrator/9450 "2021-05-31T05:00:38Z")
11 Things To Check In Any Oxygen Analyzer For Oxygen Concentrator: Does this oxygen analyzer measure the 4 parameters – Oxygen purity, flow, pressure, & temperature? Does this oxygen analyzer have a long-life sensor so… --- ## [How to calibrate pressure gauge? Using Dead weight Tester](https://forumautomation.com/t/how-to-calibrate-pressure-gauge-using-dead-weight-tester/2434)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [October 12, 2017, 12:41pm UTC](https://forumautomation.com/t/how-to-calibrate-pressure-gauge-using-dead-weight-tester/2434 "2017-10-12T12:41:52Z")
Pressure gauge calibration is done using dead weight tester. Before going to the calibration procedures, one must ensure that there is enough fluid in the dead weight tester so that pressure in the tester can transmit p… --- ## [Valve Pressure test procedure](https://forumautomation.com/t/valve-pressure-test-procedure/2545)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [October 31, 2017, 7:04pm UTC](https://forumautomation.com/t/valve-pressure-test-procedure/2545 "2017-10-31T19:04:52Z")
Requirments: Required protective coating such as paint, which may mask surface defects, shall not be applied to any surface before inspection or pressure testing. The valve shall be essentially free from the tra… --- ## [McLeod Gauge for low pressure measurement](https://forumautomation.com/t/mcleod-gauge-for-low-pressure-measurement/5569)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\ **Replies:** 0\ **Last updated:** [December 26, 2018, 1:40am UTC](https://forumautomation.com/t/mcleod-gauge-for-low-pressure-measurement/5569 "2018-12-26T01:40:32Z")
McLeod Vacuum Gauge A McLeod gauge is an instrument for measurement of very low pressures , down to 10^−6 Torr. Similar to mercury-column manometer in design, it is filled with mercury. Basic Principle of McLeod Vacuum… --- ## [What are load cells, types, classifications, calibration](https://forumautomation.com/t/what-are-load-cells-types-classifications-calibration/5110)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\ **Replies:** 0\ **Last updated:** [November 4, 2018, 11:51pm UTC](https://forumautomation.com/t/what-are-load-cells-types-classifications-calibration/5110 "2018-11-04T23:51:52Z")
Pressure , weight or force can be measured using a load cell which converts the mechanical force into electrical signal. Types of Load Cell 1.On Capacity: They have a wide range of applications and depending on the capa… --- ## [Strain gauge - principle, types, advantages, applications](https://forumautomation.com/t/strain-gauge-principle-types-advantages-applications/4949)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\ **Replies:** 0\ **Last updated:** [October 17, 2018, 7:34pm UTC](https://forumautomation.com/t/strain-gauge-principle-types-advantages-applications/4949 "2018-10-17T19:34:41Z")
Strain gauges are resistance based passive electrical transducers that work on piezoresistive effect. Principle: Resistance of a strained wire is more than the resistance of a un-strained wire of same dimensions. In ot… --- ## [Resistance based electrical transducers](https://forumautomation.com/t/resistance-based-electrical-transducers/4932)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\ **Replies:** 0\ **Last updated:** [October 15, 2018, 12:24am UTC](https://forumautomation.com/t/resistance-based-electrical-transducers/4932 "2018-10-15T00:24:58Z")
Potentiometer device Principle of operation - Movement of a slider ( by external force acting on it) causes the resistance to change in the potentiometer and subsequently the bridge circuit Application - Pressure, Disp… --- ## [What is a rupture disc?](https://forumautomation.com/t/what-is-a-rupture-disc/4522)
**Author:** [@rajeena](https://forumautomation.com/u/rajeena)\ **Replies:** 0\ **Last updated:** [September 1, 2018, 3:59pm UTC](https://forumautomation.com/t/what-is-a-rupture-disc/4522 "2018-09-01T15:59:08Z")
Rupture disc What is a rupture disc? Rupture disc, as the name sounds it is also called burst disc, bursting disc, pressure safety disc. It protects a pressure vessel, equipment or system from being overpressurization or… --- ## [GAUGE PROTECTORS: Pulsation protection and vibration protection,Temperature protection,Chemical protection](https://forumautomation.com/t/gauge-protectors-pulsation-protection-and-vibration-protection-temperature-protection-chemical-protection/3796)
**Author:** [@AbhimanyuMWarrier](https://forumautomation.com/u/AbhimanyuMWarrier)\ **Replies:** 0\ **Last updated:** [June 6, 2018, 5:02pm UTC](https://forumautomation.com/t/gauge-protectors-pulsation-protection-and-vibration-protection-temperature-protection-chemical-protection/3796 "2018-06-06T17:02:26Z")
GAUGE PROTECTORS Mainly there are three types of gauge protectors: • Pulsation protection and vibration protection. • Temperature protection. • Chemical protection. • PULSATION AND VIBRATION PROTECTION OIL FIL… --- ## [Converting pressure measurement units](https://forumautomation.com/t/converting-pressure-measurement-units/3775)
**Author:** [@AbhimanyuMWarrier](https://forumautomation.com/u/AbhimanyuMWarrier)\ **Replies:** 0\ **Last updated:** [June 4, 2018, 2:52pm UTC](https://forumautomation.com/t/converting-pressure-measurement-units/3775 "2018-06-04T14:52:39Z")
UNITS OF PRESSURE Common units of pressure are Pascal (N/m2), Bar, Kgf/cm2, PSI (lbf/in2), Torr (mmHg) and mmH2O. Pressure less than 1 PSI are normally considered as low pressure and low pressure are usually calibrate… --- ## [Pressure and types of pressure](https://forumautomation.com/t/pressure-and-types-of-pressure/3770)
**Author:** [@AbhimanyuMWarrier](https://forumautomation.com/u/AbhimanyuMWarrier)\ **Replies:** 0\ **Last updated:** [June 3, 2018, 9:41am UTC](https://forumautomation.com/t/pressure-and-types-of-pressure/3770 "2018-06-03T09:41:15Z")
PRESSURE Pressure is force per unit area applied in a direction perpendicular to the surface of an object. Pressure is measured in any unit of force divided by any unit of area. The SI unit of pressure is (the Newton … --- ## [How to install a pressure gauge on a pipeline](https://forumautomation.com/t/how-to-install-a-pressure-gauge-on-a-pipeline/3766)
**Author:** [@AbhimanyuMWarrier](https://forumautomation.com/u/AbhimanyuMWarrier)\ **Replies:** 1\ **Last updated:** [June 2, 2018, 1:24pm UTC](https://forumautomation.com/t/how-to-install-a-pressure-gauge-on-a-pipeline/3766 "2018-06-02T13:24:25Z")
AIM To install a pressure gauge on a pipe line and to measure the pressure. EQUIPMENTS REQUIRED • Pressure gauge • Isolation valve • Bleed valve • Te connector • Spanner PROCEDURE Make the pipe line connec… --- ## [Pressure Regulation valve system working | Common uses of Pressure Regulation](https://forumautomation.com/t/pressure-regulation-valve-system-working-common-uses-of-pressure-regulation/2365)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [October 1, 2017, 11:30am UTC](https://forumautomation.com/t/pressure-regulation-valve-system-working-common-uses-of-pressure-regulation/2365 "2017-10-01T11:30:27Z")
Working: Pressure regulation valves are used to regulate or maintain pressure of flowing fluid in a supply channel with in a range of pressure values. Pressure regulator valve consist of main valve and a pilot valve… --- ## [Working of boiler injectors and its advantages and disadvantages of injectors](https://forumautomation.com/t/working-of-boiler-injectors-and-its-advantages-and-disadvantages-of-injectors/2605)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [November 8, 2017, 6:11pm UTC](https://forumautomation.com/t/working-of-boiler-injectors-and-its-advantages-and-disadvantages-of-injectors/2605 "2017-11-08T18:11:06Z")
The injector is the instrument used to feed water into the boilers. It is usually employed where space is not available to implement a feed pump. Used for vertical and locomotive boilers In an injector, the water is del… [Next page](https://forumautomation.com/tag/pressure/11.md?match_all_tags=true&page=1&tags%5B%5D=pressure)