Pressure Testing & Calibration Services

At GNJ Engineering Ltd, we offer comprehensive pressure testing and calibration services to ensure the safety, performance, and compliance of your critical equipment and systems. Our services are trusted across the oil & gas, marine, manufacturing, and industrial sectors.

🔧 Our Core Services Include:

• Hydrostatic and pneumatic pressure testing

• For pipelines, pressure vessels, valves, tanks, hoses, and fittings—performed to international standards (ASME, API, ISO, etc.)

• Leak testing and integrity verification

• Using nitrogen, air, or water mediums under controlled pressure conditions

• Instrumentation calibration

• Calibration of pressure gauges, transmitters, relief valves, flow meters, and control instruments using traceable standards

• Deadweight and digital calibration methods

• Ensuring precise and certified readings for pressure-related devices

• On-site and in-house testing

• Flexible service delivery to suit your operational needs, including mobile calibration units

• Test certification and documentation

• All services come with detailed reports and calibration certificates traceable to national and international standards

⚙️ Applications:

• Oil & gas facilities and tank farms

• Offshore platforms and refineries

• Power and utility systems

• Process piping and pressure vessels

• Safety relief devices and instrumentation panels

Our experienced technicians use advanced tools and follow strict safety protocols to ensure your systems operate accurately, safely, and in full compliance with industry regulation