Pressure Transmitters for Wellhead Pressure Monitoring
Accurate and reliable wellhead pressure monitoring is critical to the safety, efficiency, and regulatory compliance of upstream oil and gas operations. Whether monitoring surface casing pressure, tubing head pressure, or annular pressure on high-pressure high-temperature (HPHT) wells, selecting the right pressure transmitter ensures early detection of kicks, leaks, and integrity failures.
Stork Solutions supplies a comprehensive range of industrial pressure transmitters designed specifically for the demands of wellhead environments — from low-pressure annulus monitoring through to ultra-high-pressure hydraulic fracturing and downhole applications up to 6,000 bar. All products are available with ATEX, IECEx, and UKEX certification for use in explosive atmospheres (Zone 0, 1, and 2), with SIL 2 functional safety compliance to IEC 61508 and IEC 61511.
Product Spotlight for Wellhead Pressure Monitoring
Why Wellhead Pressure Monitoring Matters
Wellhead pressure is one of the most important parameters in well control and production optimisation. Continuous, real-time pressure measurement at the wellhead enables operators to:
Detect well control events — early identification of kicks, sustained casing pressure (SCP), and barrier failures
Optimise production — monitor flowing tubing head pressure (FTHP) and choke performance to maximise recovery
Ensure regulatory compliance — meet HSE, BSEE, NORSOK, and API requirements for well integrity monitoring
Prevent equipment failure — identify abnormal pressure trends before they lead to blowouts, leaks, or Christmas tree damage
Support digital oilfield initiatives — integrate pressure data into SCADA, DCS, and cloud-based well management platforms
Pressure Transmitters for Every Wellhead Application
Standard Wellhead Pressure Monitoring (up to 600 bar)
For conventional onshore and offshore wellheads operating at standard pressures, the following transmitters provide proven reliability in harsh oil and gas environments:
DMK 331 Industrial Pressure Transmitter
Pressure range 0–400 mbar to 0–600 bar. Features a capacitive ceramic sensor resistant to fouling from produced fluids, H₂S, and CO₂. ATEX/IECEx (Ex ia) certified and SIL 2 compliant. Flush-mounted PVDF option available for aggressive or viscous media. Ideal for tubing head pressure, casing pressure, and separator inlet monitoring.
XMP i Precision Pressure Transmitter with HART® Communication
Pressure range 0–400 mbar to 0–600 bar. The XMP i is designed for process-critical wellhead monitoring where digital integration is required. HART® protocol enables remote configuration, diagnostics, and seamless integration with SCADA and DCS systems. ATEX/IECEx certified with both intrinsically safe (Ex ia) and flameproof (Ex d) options. Hastelloy® and Tantalum wetted parts available for sour gas and corrosive well fluids. Cooling element rated to 300°C for high-temperature wellhead applications.
DMP 333 Industrial Pressure Transmitter
Pressure range 0–100 bar to 0–600 bar. Engineered for excellent long-term stability under high dynamic pressure loads — critical for wellheads subject to pressure surges during well testing, choke adjustments, and shut-in operations. ATEX (Ex ia) certified, SIL 2 compliant.
DMP 331i / DMP 333i Precision Pressure Transmitters
Pressure range 0–400 mbar to 0–600 bar. Digital electronics with 16-bit ADC and 1:10 turn-down ratio. Communication interface allows remote span and zero adjustment — reducing the need for technician visits to remote wellhead locations. ATEX (Ex ia) certified.
Low-Pressure Wellhead & Annulus Monitoring (up to 60 bar)
Monitoring annular pressure and low-pressure casing strings requires high sensitivity at lower pressure ranges:
DMK 351 P Pressure Transmitter
Pressure range 0–40 mbar to 0–20 bar. Capacitive ceramic sensor (99.9% Al₂O₃) provides exceptional accuracy at low pressures. Intrinsically safe IS-version (Ex ia). Ideal for annulus pressure monitoring, gas lift pressure, and low-pressure casing surveillance.
DMP 331 Industrial Pressure Transmitter
Pressure range 0–100 mbar to 0–60 bar. ATEX (Ex ia) certified, SIL 2 compliant. Suitable for low-pressure wellhead monitoring, annular pressure testing, and atmospheric vent line monitoring.
DMK 387 Pressure Transmitter
Pressure range 0–100 mbar to 0–40 bar. Compact design with 99.9% Al₂O₃ ceramic capacitive sensor. ATEX (Ex ia) certified, IP67 rated with overpressure tolerance up to 70 bar — providing a safety margin against unexpected pressure spikes.
High-Pressure Wellhead Monitoring (600–2,200 bar)
HPHT wells and high-pressure completions demand transmitters rated well beyond standard ranges:
DMP 334 Industrial Pressure Transmitter
Pressure range 0–600 bar to 0–2,200 bar. Thin-film strain gauge sensor welded directly to the pressure port for maximum durability. ATEX (Ex ia) certified with adjustable span and offset. Designed for high-pressure Christmas tree monitoring, BOP pressure testing, and HPHT well surveillance.
DMP 334 i Precision Pressure Transmitter
Same pressure range as the DMP 334 (up to 2,200 bar) with enhanced digital electronics and active temperature compensation. Turn-down ratio of 1:10 allows a single transmitter to cover a wide operating range — reducing inventory requirements for multi-well pad operations.
Ultra-High-Pressure Applications (2,000–6,000 bar)
For the most demanding wellhead environments including hydraulic fracturing, well intervention, and ultra-HPHT completions:
SHP 1000 High Pressure Transmitter
Pressure range 2,000–5,000 bar. Silicon-on-Sapphire (SoS) sensing element with titanium alloy wetted parts provides exceptional resistance to corrosion and hydrogen embrittlement. Accuracy <±0.25% (optional <±0.10%). Purpose-built for frac tree monitoring, high-pressure well testing, and downhole pressure measurement.
DMP 304 Ultra High Pressure Transmitter
Pressure range 0–2,000 bar to 0–6,000 bar. ATEX (Ex ia) certified. Strain gauge on stainless steel diaphragm. The highest pressure rating in the Stork Solutions range — suitable for extreme wellhead pressures encountered during stimulation, coiled tubing operations, and ultra-deep well completions.
Certifications & Compliance
All Stork Solutions wellhead pressure transmitters are available with the following certifications to meet international oil and gas safety standards:
ATEX (EU Directive 2014/34/EU) — Zone 0, 1, 2
IECEx — international explosive atmospheres certification
UKEX — UK post-Brexit equivalent of ATEX
SIL 2 — IEC 61508 / IEC 61511 functional safety
IP65 to IP68 ingress protection ratings
CE marking and EMC compliance