Reliable Pressure Transmitters for Safer Skid-Mounted Gas Systems

In natural gas distribution, LNG regasification plants, and industrial gas supply systems, skid-mounted units play a critical role thanks to their modular design and rapid deployment. However, the flammable media and demanding on-site conditions make reliable and safe pressure monitoring essential. Micro Sensor’s explosion-proof pressure transmitters are specifically engineered for the gas industry, providing robust and dependable protection for safe and efficient skid operation.

（On-Site Assembly | Gas Skid-Mounted Equipment)

Skid-Mounted Units—The Core and the Risk Focal Point of Gas Systems

• Key Functions: Core processes, including pressure regulation, metering, odorization, filtration, and LNG regasification, are highly integrated into compact skid modules.

• Why Monitoring Matters: Pressure is a key process parameter that directly affects:

Safety Compliance: Overpressure can cause equipment rupture and gas leaks; underpressure may lead to flashback or supply disruption.

Process Stability: Proper pressure feedback ensures regulator performance, filter condition monitoring, and regasification efficiency.

Accurate Billing: Reliable flow metering requires stable inlet pressure compensation.

• Challenging Conditions: Outdoor exposure to rain, temperature swings, vibration, and corrosive agents like H₂S, moisture, and other contaminants.

Challenges of Standard Transmitters for Gas Skids

• Uncertified for Safety: Lack of ATEX/IECEx explosion-proof or SIL functional safety approvals makes them non-compliant in hazardous areas.

• Corrosion Risk: Standard 316L stainless steel can suffer stress corrosion cracking (SCC) in wet H₂S environments, leading to diaphragm failure and leaks.

• Damage from Vibration & Overload: Mechanical vibrations from regulators or compressor operations and sudden pressure surges can damage sensors or cause zero drift.

• Maintenance Constraints: The compact skid design leaves little room for instrument servicing. Any transmitter replacement often requires a shutdown and costly disassembly.

MDM7000 Explosion-Proof Pressure Transmitter for Skid-Mounted Gas Systems

Certified Safety

• ATEX, IECEx, CSA approvals for hazardous areas

• Optional SIL 2/3 for SIS overpressure/underpressure shutdown

• Intrinsically safe design to prevent ignition risks (Ex ia)

Corrosion Resistance

• Hastelloy or tantalum diaphragm for wet H₂S service

• Fully welded, leak-free construction, IP67

Rugged & Reliable

• Vibration tested (GB/T18271.3 / IEC61298-3)

• 200% FS overpressure protection for surges

Smart & Easy to Maintain

• Self-diagnostics for drift, faults, out-of-range alerts

• Modular design supports hot swapping with isolation valves

Value: Raising the Bar for Safety and Reliability

⛑️ Explosion-proof + corrosion & vibration resistance → fewer leaks & hazards

📈 High reliability & long life → less downtime, stable gas supply

💰 Lower lifecycle cost → fewer spares, less emergency repair, avoid big losses

⚖️ Global certifications → easy compliance & smooth audits

🔧 Flexible I/O & protocols → easy PLC/SCADA integration

Gas Skid-mounted Equipment Applications

• Pressure Regulating Skids: Monitor inlet pressure (overpressure protection), outlet pressure (regulation accuracy), and shut-off valve control pressure.

• Metering Skids: Inlet pressure compensation upstream of flowmeters (accurate trade settlement).

• Filtration Skids: Differential pressure across filters (blockage warning).

• LNG Regasification Skids: Vaporizer outlet pressure and BOG (boil-off gas) recovery pressure.

• Odorization Skids: Tank pressure monitoring and pump control.

Enhances the safety and efficiency of gas skid-mounted systems with smart pressure transmitters from MicroSensor. Built for rugged industrial environments, they deliver long-lasting stability even under extreme conditions. Additionally, our customized pressure monitoring solutions for gas skid equipment are engineered to enhance safety, operational stability, and compliance with industry standards. Contact us for your specific recommendations.