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Pressure Calibration

Pressure calibration is the process of verifying and adjusting pressure-measuring instruments to ensure they provide accurate readings as per defined standards. It is essential in industries where precise pressure measurement is critical for safety, quality, and system performance.

Why Pressure Calibration is Important

  • Ensures accuracy of measurements in critical systems
  • Prevents equipment failure due to incorrect pressure readings
  • Maintains safety in high-pressure systems (steam, gas, hydraulics)
  • Ensures compliance with international standards (ISO, API, etc.)
  • Improves process efficiency and product quality


Types of Pressure Calibration

  • Gauge Pressure Calibration – Measures pressure relative to atmospheric pressure
  • Absolute Pressure Calibration – Measures pressure relative to a vacuum
  • Differential Pressure Calibration – Measures the difference between two pressure points

Instruments Covered

  • Pressure Gauges
  • Pressure Transmitters
  • Pressure Switches
  • Safety Relief Valves (PSV/SRV)
  • Differential Pressure Transmitters

Calibration Methods

1. Comparison Method

  • The test instrument is compared with a reference standard (calibrator or dead weight tester)
  • Readings are taken at multiple pressure points

2. Dead Weight Tester (Primary Standard)

  • Uses known weights to generate precise pressure
  • Highly accurate and widely used for calibration

3. Digital Pressure Calibrator

  • Portable and used for quick, on-site calibration
  • Suitable for field applications

Calibration Procedure

  1. Visual Inspection – Check for damage or leaks
  2. Connection Setup – Connect instrument to calibration equipment
  3. Apply Pressure – Increase pressure step by step
  4. Record Readings – Compare instrument readings with standard
  5. Adjustment – Calibrate if deviation is found
  6. Repeat Test – Ensure consistency and accuracy
  7. Documentation – Generate calibration certificate

Accuracy & Standards

  • Calibration is performed as per ISO/IEC 17025 standards
  • Traceable to international standards (NIST or equivalent)
  • Defined tolerance limits based on instrument type

Industries Using Pressure Calibration

  • Oil & Gas
  • Power Plants
  • Marine & Shipbuilding
  • Manufacturing
  • HVAC Systems
  • Pharmaceuticals

Standards & Compliance

We follow internationally recognized calibration standards, including:

  • ISO/IEC 17025
  • ASTM Standards
  • BS & DIN Standards

Ensuring globally accepted and reliable calibration results.

Service Coverage Across UAE

Farfasha Technical Services offers Pressure Calibration Services in Dubai, Abu Dhabi, Sharjah, and across the UAE, with both on-site and workshop calibration options to suit your operational requirements.

Get in Touch

Looking for accurate and certified pressure calibration services in the UAE?

Contact Farfasha Technical Services today for dependable, high-quality solutions tailored to your industry needs.