Pressure Safety Valve Calibration PSV
Pressure Safety Valve Calibration PSV is essential to ensure valves open and close at the correct set pressure, protecting equipment, personnel, and plant integrity. At CT Precise Engineering Sdn Bhd, we offer PSV calibration and testing services across Malaysia, covering key regions including Selangor, Johor, Kuala Lumpur, Penang, Terengganu, Kedah, Pahang (Gebeng) and Kemaman.
Using certified calibration benches and in accordance with international codes, our experienced technicians perform precise adjustments, functional testing, and documentation to support regulatory compliance and safe plant operation.
Frequently Asked Questions – Pressure Safety Valve Calibration Inspection in Malaysia
Pressure Safety Valve (PSV) calibration is the process of testing and adjusting a valve to ensure it opens at the correct set pressure and reseats properly to prevent overpressure in a system. In Malaysia, PSV calibration is crucial for industrial safety, equipment protection, and compliance with DOSH (Department of Occupational Safety and Health) regulations. Proper calibration helps avoid catastrophic equipment failure, production downtime, and potential legal penalties.
Calibration frequency depends on the industry, service conditions, and statutory requirements. In most cases, DOSH recommends PSV calibration every 12 months for critical applications, especially in oil and gas, petrochemical, and power generation sectors. However, harsh operating environments or safety-critical systems may require more frequent testing.
The process involves:
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Removing the valve from the system or using an in-situ test bench.
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Inspecting the valve for wear, corrosion, or contamination.
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Applying test pressure gradually to verify the opening set point.
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Adjusting the spring tension or set screw if required.
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Re-testing to confirm accuracy and documenting results for compliance purposes.
An incorrectly calibrated PSV may open too early, causing unnecessary production loss, or fail to open at the required pressure, leading to dangerous overpressure situations. In both cases, it poses a significant safety risk and may result in non-compliance with DOSH safety regulations.
Yes. CT Precise Engineering offers both in-situ (on-site) calibration and workshop-based calibration services. On-site calibration is ideal for minimising downtime, while workshop calibration allows for detailed inspection, cleaning, and repair if necessary.
We use certified test benches and calibration equipment traceable to international standards. Our technicians are trained and qualified in PSV inspection and calibration, ensuring that every valve meets manufacturer specifications and DOSH requirements before being put back into service.
We offer rapid mobilisation across Malaysia, covering key industrial hubs such as Johor, Penang, Kuantan, Klang Valley, and offshore facilities. For urgent cases—such as safety audits, shutdown maintenance, or pre-commissioning checks—we can deploy our mobile calibration team within 24–48 hours. Our service includes full calibration certification for DOSH submission, ensuring clients remain compliant without unnecessary delays.