Maintenance & Repair Services
Ensuring Reliability, Safety & Peak Performance
At MEC (Pvt) Ltd, we understand that uninterrupted operations are critical to industrial success. Our Maintenance & Repair Services are designed to keep your systems running at optimum efficiency — minimizing downtime, preventing failures, and extending equipment life.
From preventive maintenance to emergency repairs, our experienced engineers and technicians provide reliable service support tailored to your process and production needs.
Our Core Services
- Safety & Control Valve Diagnostics and Repair
Comprehensive inspection, calibration, Online Safety Valve Testing with AccuTEST EVT PRO and overhauling of safety relief valves, control valves, and actuators — ensuring compliance with international standards and safe plant operation.
- Field Instrument Re-Calibration
On-site calibration of transmitters, gauges, switches, and sensors to maintain measurement accuracy and system reliability.
- Analyzer Servicing
Expert maintenance and repair of gas, liquid, and process analyzers to ensure consistent, precise, and reliable performance.
- Emergency Call-Out Support
Round-the-clock support to address urgent equipment failures or process disruptions — minimizing downtime and restoring operations quickly.
Comprehensive Maintenance Capabilities
Our maintenance portfolio covers a wide range of electrical, pneumatic, and digital instrumentation used across industrial sectors.
We provide service on:
- Time-based maintenance contracts (scheduled intervals)
- On-call services for corrective maintenance
- Long-term service agreements (LTSAs) for continuous plant support
What We Offer
- Troubleshooting and failure analysis
- Preventive and predictive maintenance planning
- Valve testing and in-situ verification
- Instrumentation loop checking and recalibration
- Electrical and signal integrity inspections
- Documentation and maintenance reporting
- Spare parts management and replacement support
Commitment to Safety & Quality
We adhere to the highest quality and safety standards across every maintenance activity. Each task is executed following OEM procedures, ISA, and IEC guidelines, ensuring that repaired or serviced instruments deliver optimal performance and reliability.
With a proactive maintenance approach, MEC helps clients reduce unplanned outages, enhance system reliability, and maintain compliance with international operational standards.
AccuTEST Systems USA-In-Service Pressure Safety Valve Testing System
The AccuTEST System is designed for on-line verification of PSV set pressure and functional performance without valve removal or process interruption. The system applies a controlled, externally generated force to the valve spindle, enabling accurate determination of valve opening characteristics while the process remains pressurized.
Testing is performed under actual operating conditions, providing realistic performance data and eliminating uncertainties associated with bench testing.
Unlike conventional testing systems that utilize hydraulic actuation, the AccuTEST System is electrically motor-driven, offering improved force control, repeatability, and reduced dependence on hydraulic infrastructure.
Technical Advantages and Functional Benefits
- On-Line Testing Capability
Allows verification of PSV set pressure and functionality without plant shutdown, depressurization, or valve disassembly.
- Reduced Maintenance and Lifecycle Costs
Eliminates costs associated with valve removal, workshop testing, transportation, and reinstallation.
- Controlled and Safe Test Methodology
Prevents over-pressurization of the process system by applying external mechanical force rather than increasing system pressure.
- High Accuracy and Repeatability
Electrical motor actuation ensures precise force application, consistent results, and improved measurement reliability.
- Digital Data Acquisition and Reporting
Integrated data logging provides automated, traceable test records, supporting regulatory compliance and asset integrity programs.
- Predictive Maintenance Support
Enables condition-based maintenance by identifying valves with set pressure drift or mechanical degradation prior to failure.
Glimpse of Our Activities




Industries We Serve
Our automation and software solutions are deployed across multiple industries including:
- Oil & Gas
- Fertilizers
- Power Plants
- Chemical
- Food & Beverages
- Paper & Pulp
- Textile
- Pharmaceutical
- Tobacco
- Distillery
- Pipeline
- Refineries
Your Trusted Maintenance Partner
With decades of experience in industrial instrumentation and control, MEC (Pvt) Ltd stands as a trusted partner for maintaining the integrity and performance of your systems. Whether it’s routine servicing or emergency repair, our goal is simple — to keep your operations safe, stable, and uninterrupted.
MEC — Precision in Execution, Excellence in Performance.