Gas Pipeline Pressure Monitoring
Accurate, continuous pressure measurement is fundamental to the safe and efficient operation of gas transmission and distribution pipelines. From high-pressure cross-country transmission mains operating at 70+ bar to low-pressure urban distribution networks delivering gas at millibar ranges, every section of the pipeline demands instrumentation that can withstand buried, exposed, or hazardous-area environments while providing reliable data to SCADA and telemetry systems.
Stork Solutions supplies a comprehensive range of pressure transmitters, differential pressure sensors, electronic pressure switches, wireless transmitters, and portable data loggers engineered for gas pipeline applications. All critical products are available with ATEX/IECEx Zone 0/1 certification and SIL 2 compliance to IEC 61508/IEC 61511, ensuring full regulatory conformity across the UK gas network and international pipeline infrastructure.
Product Spotlight for Gas Pipeline Pressure Monitoring
Why Gas Pipelines Demand Specialist Pressure Instrumentation
Gas pipeline pressure monitoring presents unique engineering challenges that distinguish it from general industrial pressure measurement:
Hazardous area classification — Natural gas creates explosive atmospheres, requiring all field instrumentation to be ATEX/IECEx certified for Zone 0, 1, or 2 as appropriate
Wide pressure ranges — Transmission pipelines may operate at 70–100 bar, while distribution networks can run below 75 mbar, requiring different sensor technologies
Remote and unmanned locations — Many measurement points are at above-ground installations (AGIs), district governors, or buried valve stations with no mains power
Long-term stability — Gas network operators require drift-free performance over extended calibration intervals to reduce maintenance visits
Digital integration — Modern gas networks feed pressure data into SCADA, RTU, and cloud-based asset management platforms via HART®, Modbus RTU, SDI-12, or wireless protocols
Corrosion and media compatibility — Wet gas, H₂S traces, and condensate require careful material selection (316L stainless steel, ceramic, PVDF)
ATEX/IECEx Certified Pressure Transmitters for Gas Pipelines
The backbone of any gas pipeline monitoring system is the inline or tapping-point pressure transmitter. These products provide continuous 4–20 mA or digital output signals to SCADA systems and local displays.
DMK 331 Industrial Pressure Transmitter — Ceramic sensor, 400 mbar–600 bar, ATEX Ex ia, SIL 2. The ceramic diaphragm provides inherent compatibility with dry and wet gas, eliminates oil-fill ignition risk, and resists fouling from pipeline condensate.
DMK 351 P Pressure Transmitter for the Process Industry — Capacitive ceramic sensor, ATEX certified, excellent overpressure resistance. Suited to metering stations and custody transfer points on gas transmission networks.
DMK 351 Pressure Transmitter — In-house developed capacitive sensor for accurate small system pressure and filling height measurement. ATEX-approved for hazardous gas atmospheres.
DMK 387 Pressure Transmitter — AI₂O₃ 99.9% capacitive ceramic sensor, 100 mbar–40 bar, overpressure to 70 bar, burst ≥80 bar. Ideal for low-to-medium pressure gas distribution monitoring with exceptional overpressure resilience.
DMK 456 Pressure Transmitter with Stainless Steel Field Housing — Stainless steel field housing, IP67, ATEX T6, capacitive ceramic sensor. Designed for aggressive gas environments and exposed outdoor pipeline installations.
DMP 331 Industrial Pressure Transmitter — Piezoresistive silicon sensor, 100 mbar–60 bar, ATEX Ex ia, SIL 2. The workhorse low-pressure transmitter for gas distribution networks, governor outlets, and service regulator monitoring.
DMP 331 P i Precision Pressure Transmitter — Enhanced accuracy variant with flush diaphragm. Suited to gas metering stations where tighter measurement tolerances are specified.
DMP 333 Industrial Pressure Transmitter for High Pressure — High-pressure ranges for gas transmission mains and compressor discharge monitoring, ATEX certified.
DMP 335 Industrial Pressure Transmitter — Versatile industrial transmitter with ATEX approval for general-purpose gas pipeline installations.
DMP 339 Industrial Pressure Transmitter — Compact ATEX-approved transmitter suited to valve stations, pig launchers/receivers, and buried installation access points.
Technical Gas & Hydrogen-Ready Pipeline Transmitters
As gas networks transition toward hydrogen blending and future hydrogen-only pipelines, instrumentation must be rated for H₂ service.
DMP 336 Pressure Transmitter for Technical Gases and H₂ Applications — 316L alloy construction prevents hydrogen embrittlement, oil and grease-free to ISO 15001, ATEX Zone 0/20, SIL 2 compliant, 16–1,000 bar. Future-proofed for hydrogen-blend and pure hydrogen gas pipeline networks.
Process Industry Transmitters with HART® & SIL 2
For pipeline SCADA integration, custody transfer measurement, and safety instrumented systems (SIS), HART®-enabled transmitters with SIL 2 certification provide the required data integrity.
XMP i Precision Pressure Transmitter with HART® and SIL 2 — 400 mbar–600 bar, turndown 1:10, HART® communication, intrinsic safety (ia) and optional flameproof (d), SIL 2, aluminium die-cast or stainless steel field housing. The premium choice for gas pipeline control and safety systems.
DMP331i / DMP333i Precision Pressure Transmitter — Digital electronics with enhanced accuracy for pipeline metering and test applications.
Differential Pressure Transmitters for Flow & Leak Detection
Differential pressure measurement across orifice plates, venturi meters, and pipeline sections enables gas flow calculation and leak detection.
DMD 331 Differential Pressure Transmitter — 20 mbar–16 bar differential, ATEX Ex ia, withstands static pressure up to 30× range. Compact design for flow measurement across orifice plates on gas mains.
DPT 200 Differential Pressure Transmitter with HART® — HART® communication, aluminium die-cast housing, static pressure to 400 bar. Purpose-built for gas pipeline flow computation and custody transfer measurement with SCADA integration.
Electronic Pressure Switches for Pipeline Safety
Pressure switches provide independent high/low alarm and emergency shutdown (ESD) switching for pipeline protection.
DS 200 Electronic Pressure Switch — 100 mbar–600 bar, up to 4 independent PNP contacts, 4–20 mA analogue output, LED display, ATEX Ex ia. Configurable for high-pressure alarm, low-pressure cutoff, and window-mode monitoring on gas pipelines.
DS 201 Electronic Pressure Switch — 400 mbar–600 bar, ceramic sensor variant, ATEX Ex ia, PVDF pressure port option. The ceramic sensor is ideal for wet gas and condensate-laden pipeline environments.
Digital Integration for SCADA & RTU Networks
Modern gas pipelines require digital pressure data for real-time network management, predictive maintenance, and regulatory reporting.
DCT 531 i Precision Pressure Transmitter with RS485 Modbus RTU — 100 mbar–400 bar, RS485 Modbus RTU output, ±0.10% FSO accuracy, IP67. Provides digital pressure and temperature data for direct RTU/PLC integration at pipeline AGIs and governor stations.
TPT-SDI Pressure Transmitter with SDI-12 — 0.5–600 bar, native SDI-12 v1.4, <250 µA idle current, ceramic sensor, integrated lightning protection. Purpose-engineered for battery/solar-powered pipeline telemetry stations where power budget and cable count must be minimised.