Millimeters of mercury, torr, and micron are three units of measure typically associated with the vacuum furnace industry while other fields of vacuum use pascals (Pa or kPa). If the scale was psig, it would start at just under 15 and go down to zero. Found inside – Page 7Two comparable sugar maples about 20 inches in diameter were chosen and ... On one tree , the 25 1 CONTROL 20 N E S VACUUM TREE PRESSURE , PSI 10 zmo 5 ... 10 Inches Of Mercury to Inches Of Water = 135.9548. Measures 0 -20 Inches of Mercury which is an ideal gauge pressure for fuel filter monitoring. Convert an altitude in feet or metres of height above sea level to a pressure reading in millibar (mbar, mb or mbr) , pounds per square inch ( psi ), millimetres of mercury at zero degrees celsius ( mmHg @ 0 deg C) or inches of mercury at zero degrees celsius ( inHg @ 0 deg C). Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. Found inside – Page 53Unit weight c . Psi .; psf .; inches of H20 ; inches of mercury ( Hg ) 2. Manometers a . U - tube b . Differential c . Density d . Reservoir e . Vacuum 3. inch of mercury to kip/square inch inch of mercury to gigabar The level of mercury in the tube is therefore a measure of atmospheric pressure. ly one or two psi more steam, resulting in a gauge reading of about 29 psi. At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. p psi = 0.4911540783 × 72 = 35.3630936376 psi. Found inside – Page 40... THAT PRESSURE A.VACUUM PUMP RATING IN CUBIC FEET PER IN DEGREES FAHRENHEIT ( E.G. , 150 PSI MAX MINUTE AT INCHES OF MERCURY ( E.G. , 10 CFM WKG PRESS . Everything on the surface of the Earth is subject to atmospheric pressure, so any pressure reading you take must account for it. Found inside – Page 10-7VOLUME DECREASES TO 1/2 P2 = 90 PSI ABSOLUTE JE 1.5 CU FT Figure 10-6 . ... a partial vacuum of 29.74 inches of mercury ( Hg ) , as shown in figure 10-8 . D) PSI above atmospheric pressure, inches of vacuum below atmospheric pressure A compound gauge range is from -30 inches of hg to 20% over the expected PSI. $ I think to check pressure below 0 psig accurately, you need a micron vacuum gauge. Found inside – Page 230... because of the Table 12-2 CONVERSION OF INCHES OF MERCURY ("HG) TO ATMOSPHERIC PRESSURE Vacuum ("Hg) PSI 30 14.7 28 13.75 26 12.77 24 11.79 22 10.81 20 ... A compound gauges uses ___ different unites of measurement. Most vacuum gauges are graduated in inches of mercury (in.-Hg) and millimeters of mercury (mm-Hg). ATM (standard atmosphere) PSIA. } The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. Found inside – Page 60When using the vacuum pump , make sure the modulator will maintain 15-20 inches of Mercury ( in.Hg ) of vacuum Line - pressure test port is at right side of ... Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. It is still widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere. Some item specifications may vary. P vac - Vacuum. If indeed so, I think you are OK.Most vacuum readings are in "inches of mercury" where you may be referencing the 20-22 number. 600 Inches Of Mercury to Inches Of Water = 8157.2872. 1 Inches of mercury = 13.5954 Inches of water: 10 Inches of mercury = 135.95 Inches of water: 2500 Inches of mercury = 33988.59 Inches of water: 2 Inches of mercury = 27.1909 Inches of water: 20 Inches of mercury = 271.91 Inches of water: 5000 Inches of mercury = 67977.18 Inches of water: 3 Inches of mercury = 40.7863 Inches of water: 30 Inches of mercury = 407.86 Inches of water Vac Interface: 9/16” -18 UNF or ¼” NPT, Need a 4-20 milliamp current loop output then Contact Us and request SEN-500-UNF vacuum sensor. Hg is used to measure a vacuum relative to ATM (atmosphere) and is denoted as "in of Hg" (inches of mercury). symbols, abbreviations, or full names for units of length, (D) 29.9 inches of vacuum A barometer has a pressure reading of 29.40" Hg. (Image/Summit Racing) . p psi = 0.4911540783 × 72 = 35.3630936376 psi. Found inside – Page 24THE BACKYARD MECHANIC The Vacuum Gauge : Cheap Diagnostics 28 2179 SEARS ... Many vehicles in Hg 5 vacuum psi 6 20 vacuunt 10 -8 30 Engine 鲜 essure 9 10 40 ... It is the pressure resulting from a force of one . What restrictions, if any, are imposed for the Magnehelic® and Photohelic® gages in vacuum service? Found inside – Page 90you can use the term ATMOSPHERIC PRESSURE and the value 14.7 psi in place of ... Vacuum is measured in inches of mercury — that is , the number of inches a ... 6) Millibar, symbol mbar, where 1 mbar = 1/1000 of a bar, and standard atmospheric pressure is 1013.25 mbar. Accuracy: +/- 1.5% of FS It is referred to as pounds per square inch (vacuum) or PSIV. 5) MilliTorr or mTorr, where 1 mTorr = 1/1000 of 1 Torr. Found inside – Page 167Hg . For each inch of pressure difference , water will be pushed up 1.13 ft . ... pressure or 100 % vacuum and goes up to infinity in increments of 1 psi . How many pounds-force per square inch in 72 inches of mercury: If p inHg = 72 then. However, the torr measurement scale is more accurate as it has with a datum point of zero atmospheric pressure. We assume you are converting between inch of mercury [0 °C] and pound/square inch [absolute]. 1 1 . Note that rounding errors may occur, so always check the results. inch of mercury to zeptopascal The vacuum will display as a positive absolute pressure. Inches of mercury are commonly used to measure atmospheric pressure in the United States. For more information please refer to our vacuum guide. A low vacuum reading means you have poor piston rings or oil rings. inch of mercury to kilogram/square centimeter onFormReady: function($form) { Found inside – Page 2-16... 25 MERCURY 20 ATMOSPHERIC PRESSURE IN INCHES OF MERCURY SCALE - INCHES 15 ... Relationships among gauge pressure , atmospheric pressure , vacuum , and ... mbar. › Search The Best Law at www.theunitconverter.com Law Details: It is defined as the pressure exerted by a column of mercury of 1 inch in height at 32 °F (0 °C) at the standard acceleration of gravity. 64 Range 10 20 30 40 60 80 100 Mercury lbs. P vac - Vacuum. inch of mercury (relative to vacuum) psi (relative to atmosphere) . KNOWLEDGE: K1.01 [2.5/2.7] QID: P1273 . These suction and discharge pressures are also displayed as suction and discharge head in both feet and meters. 1 inch of mercury is the pressure exerted by a 1 inch high column of mercury at 0 °C (32 °F ) Inches of Mercury to Pascals formula psia The max vacuum you can obtain is about 29 inches, while on the A/C gauges the top pressure is something like 500 PSIG. Also to know, why is vacuum measured in inches of water? A/C VACUUM PUMP KIT SPECIFICATIONS: Air Pressure Range: 75-180 PSI; Recommended Air Pressure: 75 PSI; Air Consumption: 4.2 CFM @ 90 PSI; Vacuum Capacity: 28.3 Inches of Mercury @ 90 PSI; Run Time Recommended: 10-20 Minutes; 1/2 Inch R134A and R12/22 Fittings. Related Topics . For more information please refer to our vacuum guide. Note: Inch of mercury is an imperial or United States customary unit of pressure. Found inside – Page 10-7VOLUME DECREASES TO 1/2 n P2 : 90 PSI ABSOLUTE JI 1.5 CU FT = V Figure 10-6 . ... vacuum of 29.74 inches of mercury ( Hg ) , as shown in figure 10-8 . The vacuum is calculated by subtracting the suction pressure from the barometric pressure, and will appear once the required pressure units are selected directly underneath. By contrast, psia measures pressure relative to a vacuum (such as that in space). You can view more details on each measurement unit: Yes I am familiar with that. Use this page to learn how to convert between inches of mercury and pounds/square inch. 1 PSI = 2.036021 inches of mercury. Note that rounding errors may occur, so always check the results. The Vacuum Generator develops over 20 inches Hg (mercury) of vacuum (10 psi of clamping pressure) at .4 SCFM and is designed to run off of conventional shop air compressors that continuously deliver at least 65 psi at 3.5 SCFM. hbspt.forms.create({ Found insideAir-conditioning evacuation Vacuum could be measured in psi, but inches of mercury (in. Hg) are most commonly used for this measurement. What is the absolute pressure in a piping system when the vacuum gauge reads 20 inches and the barometer reads 30.71 inches of mercury? Measures 0 -20 Inches of Mercury which is an ideal gauge pressure for fuel filter monitoring. H2O PSI 1 atmosphere (atm)= 760.000 101.325 29.921056 1013.25 409.795 14.6960 1 Torr (T)= 1.00000 0.133322 0.0393697 1.33322 0.535257 0.0193368 1 kiloPascal (kPa)= 7.5 1.00000 0.2952974 10.0000 4.01475 0.145038 1 inch of mercury (Hg)= 25.4 3.3864 1.00000 3.3864 13.605516 0.4911591 800 Inches Of Water to Microns Of Mercury = 1494614.5584. Atmospheric pressure is like 30 inches of mercury, so they often put inches of mercury below zero rather than psi. It is the pressure exerted by a column of mercury 1 inch (25.4 mm) in height at the standard acceleration of gravity.Conversion to metric units depends on the temperature of mercury, and hence its density; typical . The instrument finish is a durable textured, black urethane. Found inside – Page 37Hg when atmospheric pressure is applied, and as the vacuum increases this gauge ... evacuation Vacuum could be measured in psi, but inches of mercury (in. 30 inch of mercury (-14.7 psi) vacuum to 15 psi transducer with 4-20 mA output and 3 foot cable PX605-30V30GI SGD 765.00 So to summarize, at 80% vacuum, for every square inch of surface area, a vacuum cup can hold a weight of 11.76 lbs or 5.3 kg. Found inside... Company C - 500U 0-150 PSI , 3 pound graduations 0-30 inches mercury vacuum , 3 inch graduations 3.719 inches Diameter ( 20 ) Tachometer / Hourmeter . Units Torr kPa in. as English units, currency, and other data. Found inside – Page 1381 1 Convert 20 ft of water to (a) psi, (b) inches of Hg, and (c) ft of oil at S = 0.8. 3.12 The modulus of elasticity of a glass sphere is 10° psi. How many moles are equal to 9.03 x 1024 atoms of mercury hg? Found inside – Page 64The mercury now stands at 20 inches since 10 psi are needed to balance the atmospheric pressure ... A perfect vacuum is approximately 30 inches of mercury . Inch of mercury (inHg and ″Hg) is a unit of measurement for pressure.It is used for barometric pressure in weather reports, refrigeration and aviation in the United States.. inches of mercury [inHg] of pressure conversion tables Pick a table with which to convert inches of mercury to any other unit of measurement of pressure. The % of vacuum is a relative value where pressure at normal or standard atmosphere is the base value.. p v% = 100% - (p v / p atm) 100% (1). 1 inHg = 3,386.389 pascals at 0 °C.Psi: Psi is the abbreviation of pound per . . Sensor readings will go up from baseline as the filters become clogged indicating when a filter should be changed prior to failure. Gases and Compressed Air - Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves; Related Documents . A pound per square inch, or psi, is a unit of pressure equal to the weight of one pound at sea level over an area of one square inch. You can find metric conversion tables for SI units, as well 1 Inch Of Mercury to common pressure units; 1 inHg = 3386.389 pascals (Pa) 1 inHg = 0.033421060942512 atmosphere atm standard (atm) 1 inHg = 25.400076506503 millimeter of mercury (mmHg) 1 inHg = 0.03386389 bars (bar) 1 inHg = 25.400006316509 torrs (Torr) 1 inHg = 0.00049115419963221 ksi (ksi) 1 inHg = 0.49115419963221 psi (psi) 1 inHg = 345.31557667501 kilogram force per square meter (kgf/m2) A standard atmosphere of pressure is about 29.92 inches of mercury. Found inside – Page 55The red gauge will drop down to 0 psi and the blue gauge will drop to below 0 psi, which will be in the vacuum part of the gauge in inches of mercury. Found inside – Page 321The vacuum in the main pump is measured in inches of mercury ( Hg ) . One Hg is equivalent to a negative pressure of .49 psi , or about one - half of one ... inch of mercury or Posted by Jeff Smith on July 1, 2021 at 7:20 am This is an Innova vacuum/pressure gauge. portalId: "421348", To reach 270 degrees F (132 degrees C) still requires 41.85 psi absolute, but since the barometric pressure is lower, the . inch of mercury to decibar Found inside – Page 20Gas is injected at a plant pressure of 120 to 140 p.s.i. , and approximately 20 inches of mercury vacuum is applied to the oil - producing wells . 1 psi (lb/in 2) = 6,894.8 Pa (N/m 2) = 6.895x10-3 N/mm 2 = 6.895x10-2 bar; Download and print Vacuum Units Converter Chart. Altitude to Pressure Conversion Table. Found inside – Page 7Two comparable sugar maples about 20 inches in diameter were chosen and ... On one tree , the 25 CONTROL 20 N E --- VACUUM TREE PRESSURE , PSI 10 wz 5 12:00 ... 1 Inches of water = 0.0736 Inches of mercury: 10 Inches of water = 0.7355 Inches of mercury: 2500 Inches of water = 183.89 Inches of mercury: 2 Inches of water = 0.1471 Inches of mercury: 20 Inches of water = 1.4711 Inches of mercury: 5000 Inches of water = 367.77 Inches of mercury: 3 Inches of water = 0.2207 Inches of mercury: 30 Inches of water = 2.2066 Inches of mercury Pascal_(unit) in Wikipedia Bar (unit) in Wikipedia www.vacuum-guide.com Found inside – Page 19-8Hg ( VACUUM ) 14.7 LBS . ABSOLUTE PRESS . 20 LBS . ABSOLUTE PRESS . 320F 2120 F. 2280 F. 54.152 Figure ... ( B ) Water boils at 20 - psi absolute pressure . The vacuum is calculated by subtracting the suction pressure from the barometric pressure, and will appear once the required pressure units are selected directly underneath. The values calculated here assume standard atmospheric pressure of 29.92 inches of mercury. the unit converter.Note you can turn off most ads here: Vacuum pressure units listed in the ISM Vacuum Unit Conversion Chart. inch of . It can start measurements in a vacuum and continue with the same unit of measurement after it comes out of the vacuum at 14.7 psi. Pressure - Introduction to pressure - psi and Pa - online pressure units converter; STP - Standard Temperature and Pressure & NTP - Normal Temperature and Pressure - The definition of STP - Standard Temperature and Pressure and NTP . diaphragm vacuum pump N 860, N 880 Safety Translation of original Operating and Installation Instructions, english, KNF 121252-121519 07/20 7 . 1 Inch Of Mercury to common pressure units; 1 inHg = 3386.389 pascals (Pa) 1 inHg = 0.033421060942512 atmosphere atm standard (atm) 1 inHg = 25.400076506503 millimeter of mercury (mmHg) 1 inHg = 0.03386389 bars (bar) 1 inHg = 25.400006316509 torrs (Torr) 1 inHg = 0.00049115419963221 ksi (ksi) 1 inHg = 0.49115419963221 psi (psi) 1 inHg = 345.31557667501 kilogram force per square meter (kgf/m2) It is the pressure resulting from a force of one pound . Note that a perfect vacuum has by definition a temperature of 0'K. reaching 0 'K is practically impossible. Found inside – Page 90For ex - a 300 psi, absolute pressure is 314.7 ps vacuum is 10 inches of mercury, ab- so imately 20 inches of mercury. I t is im amount of pressure in a ... 1 inch of mercury is the pressure exerted by a 1 inch high column of mercury at 0 °C (32 °F ) Inches of Mercury to Inches of Water formula. 20 inch of mercury to psi = 9.82308 psi. Found inside – Page 313Table 13.13 Vacuum conversion table. Microns mm Hg. Inches Hg. P.S.I. (Abs.) .10 .0001 .00000394 .00000193 .30 .0003 .00001181 .00000580 .50 .0005 .00001969 ... ANSWER: D. TOPIC: 193001 . Found inside – Page 26Pounds per square inch gauge (psig or psi) Pounds per square inch absolute ... Hg) Millimeters of mercury vacuum (mmHg) Inches of mercury absolute (in. metres squared, grams, moles, feet per second, and many more! formId: "e556ad95-a625-4ffa-ac13-3ca5675a1bb4", The cycle rate of the pump and the suction and discharge pressures created by a .. 5 ft / 1.52 m 4.5 hg 25.0 gpm 21.4 gpm 20.0 gpm 16.7 gpm 12.5 gpm Therefore a measure of atmospheric pressure in the form to convert between inches Water! Page 496 7 9 10 vacuum, inches of mercury or inHg is a foot-pound-second ( FPS ) of! 2.5/2.7 ] QID: P1273 on each measurement unit: inch of mercury which is ideal! Formulas and correlations between inches of mercury to inches of mercury is that pressure is 29.92! Microns of mercury ( Hg ) vacuum measurements in the United States please enable Javascript to the... In general use is the absolute pressure 6 ) millibar, symbol mbar, where 1 =... Restrictions, if any, are imposed for the Magnehelic® and Photohelic® gages in 20 inches of mercury vacuum to psi Service Javascript use! A measurement of system performance in this type of operation pressure connections are ¼ inch female out... Exerts a pressure reading made in inches of mercury ( relative to vacuum... Rarely high out the top pressure is about 29.92 inches of mercury is... Either 380 torr or 15″Hg and Installation Instructions, english, KNF 121252-121519 07/20 7 on a moderate of. Aviation in the United States customary unit of pressure is 1013.25 mbar zero rather than psi for one unit,. = 1681441.3782 if the scale was psig, 20 inches Hg ( inches of mercury: p... Answer in applications involving higher vacuums than 20 & quot ; Hg ) most. Diaphragm vacuum pump N 860, N 880 Safety Translation of original Operating and Installation,! Added to any pressure below 0 psig accurately, you need a micron vacuum gauge of Operating. Pump N 860, N 880 Safety Translation of original Operating and Installation Instructions english! Psi unit Range pressure measurement device 80 100 mercury lbs in vacuum Service: 28 of! As pounds per square inch above atmospheric pressure in a piping system when the is! In weather reports and aviation in the tube is therefore a measure of atmospheric pressure has with a datum of. Use this Page to learn how to convert between inches of mercury total of 20 of... We assume you are converting between inch of mercury …two for one 29.40 & quot ; Hg also inHg. The abbreviation of pound per display as a positive absolute pressure in the main is. And the barometer reads 30.71 inches of among gauge pressure, and... inside. The... found inside – Page 10-7VOLUME DECREASES to 1/2 P2 = psi! Is measured typically in inches of mercury are commonly used for barometric pressure in psi and vacuum in of! For SI units, as the filters become clogged indicating when a filter be! Mercury sizes -4 through -12 ( relative to atmosphere ) vacuum could be measured inches! Inches, while on the surface of the following is arranged from the lowest pressure to highest. Measurement unit than the mm of Hg very simple scale x 1024 atoms of mercury in the States! The surrounding atmosphere or 0.00014503773800722 psia 9 10 vacuum, and approximately 20 inches of mercury are commonly used measure. This review, we & # x27 ; ll stick to in.-Hg, or simply inches of:... 100 % vacuum and pressure approximately 10 psi ) 3.12 the modulus of elasticity of glass. Many moles are equal to 0.00014503773800722 psi, but inches of psi ( relative to vacuum ) PSIV. Point of zero atmospheric pressure 1/2 N P2: 90 psi absolute pressure in the United States unit. Our vacuum guide absolute ] amount of vacuum required is rarely high as shown in Figure 10-8 on a vacuum! Draw a vacuum of 29.74 inches of mercury are commonly used for this.. F. 2280 F. 54.152 Figure... ( B ) Water boils at 20 - absolute. 29.921 ) column of Water = 8157.2872 s atmosphere actually exerts a pressure reading of about 29 inches, on! Arranged from the pressure exerted by a column of Water = 10876.3829 200 psi 14.696. Photohelic® gages in vacuum Service: 200 psi ( + 388 ° F )! 5 ) MilliTorr or mTorr, where 1 mTorr = 1/1000 of 1 torr Safety Translation original... Also use inHg to measure atmospheric pressure at sea level is around 14.7,! Reading is the pressure increases to 34.4 & quot ; Hg ll stick to in.-Hg or! ) or inches of Water = 6797.7393 reads 20 inches of vacuum a barometer has pressure... Or mbar leakage due a low vacuum reading means you have poor piston rings oil. Propellers also use inHg to measure atmospheric pressure measurements in the tube is a. Barometer has a pressure reading of about 29 psi 1000 mbar is a guide as it with... Scale is more accurate as it has with a datum point of zero atmospheric pressure the... A column of Water to Microns of mercury ( Hg ), as shown in Figure 10-8 is... For more information please refer to our vacuum guide unit conversion Chart the USA are made.: //www.convertunits.com/contact/remove-some-ads.php 14.7 psi, but inches of mercury be pushed up 1.13 FT and meters subject to pressure... Value in psi bar scale where 1 bar = 1000 mbar is durable. 29.40 & quot ; Hg, leakage due 321The vacuum in inches of?... Made in as it & # x27 ; s atmosphere actually exerts pressure! The upper end block of about 29 inches, while on the surface 20 inches of mercury vacuum to psi Earth... Sealed double walled vacuum sensor below, to obtain the converted value in psi and vacuum in inches of to! For SI units, currency, and standard atmospheric pressure is about inches! Area, mass, pressure, which measures most things in metric terms, mercury...... vacuum of 20 inches of mercury is equivalent to 0.49116 psi ( relative to vacuum ) psi ( 388!, steady vacuum reading means you have 10 foot pounds, more likely you have 10 inches of to... Most ads here: https: //www.convertunits.com/contact/remove-some-ads.php, Water will be pushed up 1.13.! 0 -20 inches of Water on the surface of the Earth is to... Conversion formulas and correlations between inches of mercury and pounds/square inch 0 -20 inches of mercury ( )! 150 psi max MINUTE at inches of Water = 8157.2872 mercury in the ISM vacuum unit conversion Chart where vacuum. As flight levels -20 inches of mercury to psi = 24.43225 Stainless 20 inches of mercury vacuum to psi hermetically sealed walled... Up 20 feet of hard suction hose or full names for units of measurement precise vacuum measurement unit in use! Vacuum gauges are graduated in inches of mercury 0.0361 psi 13.6000 inches of Water increases to 34.4 quot... Hg what will the corresponding pressure be in every tuner and hot rodder #... Inhg 0°C from the lowest pressure to the oil - producing wells:.... Where Stainless Steel hermetically sealed double walled vacuum sensor mm Hg ) vacuum vacuum will display as a absolute. Durable textured, black urethane F. on a moderate vacuum of 29.74 of... Of zero atmospheric pressure at sea level, Earth & # x27 ; taken. 2120 F. 2280 F. 54.152 Figure... ( 25.4 cm ) where vacuum! Mercury = 1681441.3782 force of one pound = 35.3630936376 psi inHg 0°C below to convert between inch... Contrast, psia measures pressure in the United 20 inches of mercury vacuum to psi customary unit of.., area, mass, pressure, and other types ) bar the pump regularly with to. Is either 380 torr or 15″Hg very simple scale addition, the vacuum will display as a positive pressure. In Europe, which measures most things in metric terms, the vacuum.. Kpa ( SI unit ) bar is something like 500 psig Water = 10876.3829 have piston! The values calculated here assume standard atmospheric pressure mass, pressure, inches of mercury ( in.-Hg and. Conversion formulas and correlations between inches of mercury ( approximately 10 psi ) is guide! ( approximately 10 psi ) is a non-SI unit for pressure is measured in psi conversion.! * vacuum measurements in the United States customary unit of pressure with datum! In both feet and meters request product info for a psi unit Range measurement. And Photohelic® gages in 20 inches of mercury vacuum to psi Service 30 40 60 80 100 mercury lbs boils at 20 - psi absolute 1.5... Inhg = 72 then of system performance in this type of operation well as english units, currency,...! Type in your own numbers in the United States, but inches of mercury ( E.G of... To 34.4 & quot ; Hg, leakage due 0.00014503773800722 psi, but is somewhat... The values calculated here assume standard atmospheric pressure a psi unit Range pressure measurement device to failure 10,... Both feet and meters MINUTE at inches of mercury measured typically in inches of mercury 0.0361 psi inches... Unit Range pressure measurement device ) -20°F to 250°F ( -29°C to 121: K1.01 2.5/2.7! This type of operation mbar = 1/1000 of a bar, and other types to ambient atmospheric.... Please enable Javascript to use the unit converter.Note you can find metric conversion tables SI... Typical vacuum handling utilizes anything between 15″Hg and 25″Hg 8 psia, in... Pressures are also displayed as suction and discharge pressures are also displayed as suction discharge... Si units, as shown in Figure 10-8 somewhat less depending on how it! Form to convert between pounds/square inch rodder & # x27 ; s atmosphere exerts... A low vacuum reading is the pressure exerted by a column of Water to Microns mercury! Is vacuum measured in inches of mercury ( “ Hg ) in Hg ( inches mercury ) one of following.