Offshore Platform Instrumentation
Offshore oil and gas platforms present some of the most demanding operating environments for instrumentation. Equipment must perform reliably in salt-laden atmospheres, Zone 1/2 hazardous areas, extreme temperatures, high vibration, and corrosive seawater contact — often in locations where maintenance access is expensive and infrequent.
Stork Solutions supplies a comprehensive range of pressure transmitters, level transmitters, subsea sensors, and temperature transmitters specifically engineered for offshore platform and marine applications. Products are available with marine classification society approvals (Lloyd’s Register, DNV, ABS, CCS), ATEX/IECEx Zone 0/1 certification, and SIL 2 compliance to IEC 61508/IEC 61511, providing complete coverage from subsea infrastructure through to topsides process systems.
Product Spotlight for Offshore Platform Instrumentation
Why Offshore Platforms Demand Specialist Instrumentation
Offshore platform instrumentation faces engineering challenges that go far beyond those encountered onshore:
Marine classification requirements — Instruments installed on vessels and platforms must hold approvals from classification societies such as Lloyd’s Register (LR), Det Norske Veritas (DNV), American Bureau of Shipping (ABS), and China Classification Society (CCS)
Hazardous area classification — Hydrocarbon processing areas are classified ATEX/IECEx Zone 0, 1, or 2, requiring intrinsically safe or flameproof instrumentation
Seawater and salt spray corrosion — Exposed instruments require CuNiFe, titanium, marine bronze, or high-grade stainless steel to resist pitting and stress corrosion cracking
Subsea deployment — Subsea wellheads, manifolds, and control pods require instruments rated for permanent submersion at depths to 3,000 m+ with wet-mateable connectors
Wide pressure ranges — From millibar-range ballast tank levels to thousands of bar in BOP hydraulics and high-pressure process systems
Digital integration — Modern platforms feed data into integrated control and safety systems (ICSS) via HART®, Modbus RTU, and Foundation Fieldbus
SIL compliance — Safety instrumented functions (SIF) for ESD, fire & gas, and high-integrity pressure protection systems (HIPPS) require SIL 2 certified instruments
Marine-Approved Pressure Transmitters — LR, DNV, ABS, CCS
These products carry full marine classification society approvals and are purpose-designed for shipbuilding and offshore conditions.
DMK 457 Pressure Transmitter for Shipbuilding and Offshore — Capacitive ceramic sensor, 400 mbar–600 bar, CuNiFe seawater-resistant pressure port, LR/DNV/ABS/CCS certified, optional ATEX Ex ia. Applications include drives, compressors, boilers, pneumatic control, fuel/oil systems, and seawater ballast systems. Marine-specific product.
DMP 457 Pressure Transmitter for Shipbuilding and Offshore — Piezoresistive 316L stainless steel sensor, 100 mbar–600 bar, flush G 1/2″ pressure port, LR/DNV·GL/ABS/CCS certified, optional ATEX Ex ia and welded pressure port. Applications include diesel engines, compressors, pumps, boilers, hydraulic/pneumatic control, and fuel/oil systems. Marine-specific product.
DMK 458 Pressure Transmitter for Marine and Offshore — Capacitive ceramic sensor with optional Al₂O₃ 99.9% diaphragm, 40 mbar–20 bar, CuNiFe seawater-resistant port, LR/DNV/ABS/CCS certified, optional ATEX Ex ia. Applications include loading/unloading monitoring, ship draught and position, anti-heeling systems, and ballast/storage tank level measurement. Marine-specific product.
DMK 456 Pressure Transmitter with Stainless Steel Field Housing — Stainless steel field housing, IP67, ATEX T6, capacitive ceramic sensor. The rugged SS housing provides additional protection for exposed topsides installations on offshore platforms subject to salt spray and vibration.
Marine-Approved Level Transmitters
Precise hydrostatic level measurement is critical for ballast management, storage tank inventory, and draught monitoring on offshore platforms and FPSOs.
LMK 458 Level Transmitter for Marine and Offshore — Capacitive ceramic sensor with Al₂O₃ 99.9% diaphragm, 40 cmH₂O–200 mH₂O, operates to 125 °C, 39.5 mm diameter, LR/DNV/ABS/CCS certified, optional ATEX Ex ia. Screw-in and flange versions. CuNiFe housing option. Applications: ballast tanks, storage tanks, draught monitoring, desalination. Marine-specific product.
LMK 458 H Level Transmitter with HART® for Marine and Offshore — Same marine-grade construction as LMK 458 with HART® communication for remote configuration of offset, span, and damping. 60 cmH₂O–200 mH₂O, 39.5 mm diameter, LR/DNV/ABS/CCS certified, optional ATEX Ex ia. Integrates directly with platform ICSS/DCS systems. Marine-specific product.
LMK 487 Level Transmitter for Marine and Offshore 22 mm — Ultra-compact 22 mm diameter hydrostatic probe, 1–100 mH₂O, titanium housing option, LR/DNV·GL certified, optional ATEX Ex ia. Fits inside 1″ pipes. 99.9% Al₂O₃ diaphragm. Ideal for tight-access ballast and storage tanks on offshore platforms. Marine-specific product.
Subsea Pressure & Temperature Transmitters
For subsea wellheads, manifolds, control pods, and pipeline infrastructure deployed on the seabed.
SSPT Subsea Pressure Transmitter — Ceramic (96% Al₂O₃) piezo-resistive sensor, 1–400 bar, accuracy <±0.25% or <±0.10%, permanent submersion to 3,000 m depth, wet-mateable connectors (2/3/4-pin) rated to 4,000 m. Materials: Duplex Stainless Steel, Marine Bronze, or Titanium. Applications: oil & gas drilling, ROV/AUV systems, subsea hydraulics, submarine installations, subsea pods. Subsea-specific product.
SSTT Subsea Temperature Transmitter — Class A PT100 sensing, accuracy <±0.25 °C, permanent submersion to 3,000 m, wet-mateable connectors rated to 4,000 m. Materials: Duplex Stainless Steel, Marine Bronze, or Titanium. Optional protruding probe in various lengths. Applications: subsea pipeline monitoring, wellhead temperature, ROV systems, subsea control pods. Subsea-specific product.
ATEX/IECEx Topsides Process Pressure Transmitters
Offshore platform topsides — separation, compression, metering, and export — require ATEX-certified transmitters for hazardous area process monitoring.
DMK 331 Industrial Pressure Transmitter — Ceramic sensor, 400 mbar–600 bar, ATEX Ex ia, SIL 2. The ceramic diaphragm is inherently resistant to offshore process media including produced water, glycol, and condensate. Ideal for separator pressure, produced water systems, and utility air.
DMP 331 Industrial Pressure Transmitter — Piezoresistive silicon sensor, 100 mbar–60 bar, ATEX Ex ia, SIL 2. Suited to lower-pressure topsides systems such as LP separators, flare headers, vent systems, and HVAC monitoring.
DMP 333 Industrial Pressure Transmitter for High Pressure — High-pressure variant, ATEX certified. Suited to HP separators, gas compression discharge, export pipeline monitoring, and gas dehydration systems on offshore platforms.
DMP 304 Industrial Pressure Transmitter for Ultra High Pressure — Up to 5,000 bar, ATEX certified. For BOP hydraulics, tensioning systems, high-pressure water injection, and hydraulic power units (HPUs) on offshore platforms where pressures far exceed standard process ranges.
DMP 336 Pressure Transmitter for Technical Gases and H₂ Applications — 316L alloy, oil-free to ISO 15001, ATEX Zone 0/20, SIL 2, 16–1,000 bar. For oxygen, nitrogen, and technical gas systems on offshore platforms, plus future-proofing for hydrogen-blend operations.
DMK 351 P Pressure Transmitter for the Process Industry — Capacitive ceramic sensor, ATEX certified, excellent overpressure resistance. Suited to metering skids and fiscal/custody transfer measurement on offshore export systems.
Precision Process Transmitters with HART® & SIL 2
For integration with offshore platform ICSS, DCS, and safety instrumented systems (SIS) including ESD, HIPPS, and fire & gas.
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 offshore safety instrumented functions including ESD, HIPPS, and critical process control.
DMP331i / DMP333i Precision Pressure Transmitter — Enhanced digital accuracy for offshore metering, fiscal allocation, and test separator measurement.
Differential Pressure Transmitters
For flow measurement, filter monitoring, and process diagnostics on offshore topsides.
DMD 331 Differential Pressure Transmitter — 20 mbar–16 bar differential, ATEX Ex ia, withstands static pressure to 30× range. Flow measurement across orifice plates, filter ΔP monitoring on produced water and glycol systems.
DPT 200 Differential Pressure Transmitter with HART® — HART® communication, static pressure to 400 bar. Fiscal gas flow measurement and export metering on offshore platforms with direct HART® integration to the platform DCS.
Electronic Pressure Switches for Platform Safety
Independent high/low alarm and ESD switching for offshore platform protection systems.
DS 200 Electronic Pressure Switch — 100 mbar–600 bar, up to 4 PNP contacts, 4–20 mA output, LED display, ATEX Ex ia. Configurable for high-pressure alarm, low-pressure trip, and window-mode monitoring on platform separation, compression, and export systems.
DS 201 Electronic Pressure Switch — 400 mbar–600 bar, ceramic sensor, ATEX Ex ia, PVDF pressure port option. The ceramic diaphragm resists fouling from produced water, sand-laden flow, and offshore process fluids.