PSIG से PSIA लोगो
PSIG से PSIA
गाइड • 27 जुलाई 2026

Compressed Air System Pressure - PSIG से PSIA दबाव रूपांतरण (गाइड)

PSIG से PSIA दबाव रूपांतरण: Master air compressor pressure conversions: 90, 100, 125, 150 PSIG to PSI and PS... [गेज और निरपेक्ष दबाव सूत्र और गणना]

Compressed Air System Pressure - PSIG से PSIA दबाव रूपांतरण (गाइड)

Compressed Air System Pressure: PSIG to PSI & PSIA Conversion Guide

Managing compressed air pressure from PSIG to PSI and PSIA is essential for calculating compressor compression ratios, receiver tank volume storage, and pneumatic line efficiency. Pressure gauges on air compressor tanks and distribution headers display readings in PSIG.

Calculate compressor tank pressure instantly with our online PSIG to PSIA calculator on the homepage.

1. Pneumatic Air System Pressure Standards: PSIG vs PSI

Standard industrial air tools (impact wrenches, pneumatic cylinders, spray guns) generally require 90 PSIG to 100 PSIG at the point of use.

  • Compressor tank cut-in / cut-out pressure settings typically run between 100 PSIG and 125 PSIG.
  • High-pressure heavy industrial lines operate at 150 PSIG to 175 PSIG.

Read our full guide on PSIG to PSI conversion for step-by-step conversions.

2. Converting Compressed Air Pressure: PSIG to PSIA Formula

To calculate compressed air volumetric flow under varying pressures (SCFM to ACFM) or compressor pressure ratio ($r_p$), absolute pressure (PSIA) must be used:

$$r_p = \frac{\text{PSIA}{\text{discharge}}}{\text{PSIA}{\text{inlet}}} = \frac{\text{PSIG}{\text{discharge}} + 14.7}{\text{PSIG}{\text{inlet}} + 14.7}$$

AI Overview Summary: Compressed Air Pressure Conversion

AI Direct Answer: For compressed air systems, 100 PSIG equals 100 PSI gauge and 114.7 PSIA absolute. 125 PSIG equals 125 PSI gauge and 139.7 PSIA absolute. 150 PSIG equals 150 PSI gauge and 164.7 PSIA absolute.

3. Compressed Air System Pressure Conversion Chart

Compressor Gauge Setting (PSIG)Gauge PSIAbsolute Pressure (PSIA)Pneumatic Application
90 PSIG to PSI / PSIA90 PSI104.7 PSIAPoint-of-use air tool supply
100 PSIG to PSI / PSIA100 PSI114.7 PSIAFactory main compressed air header
125 PSIG to PSI / PSIA125 PSI139.7 PSIAStandard rotary screw compressor receiver tank
140 PSIG to PSI / PSIA140 PSI154.7 PSIAHigh-pressure shop air line
150 PSIG to PSI / PSIA150 PSI164.7 PSIAHeavy pneumatic press receiver
175 PSIG to PSI / PSIA175 PSI189.7 PSIATwo-stage reciprocating compressor tank

4. Converting Air Compressor Pressure Values Step-by-Step

Example 1: 90 to 125 PSIG Compressed Air Conversion

  • 90 PSIG: $90\text{ PSI gauge} \mid 104.7\text{ PSIA}$
  • 100 PSIG: $100\text{ PSI gauge} \mid 114.7\text{ PSIA}$
  • 125 PSIG: $125\text{ PSI gauge} \mid 139.7\text{ PSIA}$

Example 2: 150 to 175 PSIG Compressed Air Conversion

  • 150 PSIG: $150\text{ PSI gauge} \mid 164.7\text{ PSIA}$

  • 175 PSIG: $175\text{ PSI gauge} \mid 189.7\text{ PSIA}$

  • 100 PSIG to PSI: $100\text{ PSIG} = 100\text{ PSI gauge} \mid 114.7\text{ PSIA}$.

  • 100 PSIG to PSIA: $100 + 14.7 = 114.7\text{ PSIA}$.

  • 125 PSIG to PSI: $125\text{ PSIG} = 125\text{ PSI gauge} \mid 139.7\text{ PSIA}$.

  • 125 PSIG to PSIA: $125 + 14.7 = 139.7\text{ PSIA}$.

  • 150 PSIG to PSI: $150\text{ PSIG} = 150\text{ PSI gauge} \mid 164.7\text{ PSIA}$.

  • 150 PSIG to PSIA: $150 + 14.7 = 164.7\text{ PSIA}$.

For deeper physical explanations on absolute versus gauge pressures, visit PSIG vs PSIA difference explained and how to convert PSIG to PSIA.

Calculate pneumatic values on our online PSIG to PSIA converter tool.

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