Rotaserv supplies ET series expansion turbine spare parts and new units to oil & gas operators across the MENA region. We know the equipment — from the ET 72 at smaller NGL plants to the ET 127 at major gas processing facilities — and we move quickly when you need us.
Expansion turbines are critical to gas processing economics — they recover energy from high-pressure gas streams while producing the deep cooling needed for NGL recovery, gas liquefaction, and dew point control. When they go down, the whole plant feels it.
Rotaserv focuses specifically on expansion turbines and rotating machinery. We can source spare parts for the ET series — including hard-to-find components for units that have been in service for decades — and we handle new unit procurement for replacement and brownfield projects. We work across multiple suppliers rather than representing a single OEM, which means we can give you a straight answer on availability and cost without a product agenda.
We're based in Dubai and ship to any MENA destination. For routine maintenance orders, typical lead times are 2–6 weeks depending on the part. For emergencies, we start working immediately and keep you updated until the parts are on a plane.
The ET series is found at gas processing plants across the MENA region — anywhere operators need to extract value from high-pressure gas streams.
Expansion turbines extract propane, butane, and heavier hydrocarbons from natural gas. The ET series has a long service record at NGL plants across North Africa and the Gulf, including at facilities run by Sonatrach, AGOCO and NOC Libya.
Instead of throttling high-pressure pipeline gas through a valve and wasting the energy, expansion turbines convert that pressure drop into useful power or refrigeration — a common application at gas transmission and distribution stations.
Expansion turbines provide the deep chilling needed for hydrocarbon dew point adjustment (HCDPA) systems, preventing liquid dropout in gas transmission pipelines — critical for pipeline operators across Qatar, UAE and Oman.
In closed-loop refrigeration at gas processing plants, ET series turbines serve as the expansion device — producing the low temperatures needed for gas chilling without the complexity of external refrigerant systems.
Whether you need a single bearing set or a full overhaul kit, give us the part number and we'll find it.
Impellers, rotor assemblies, shaft components and bearing sets — the components most affected by wear and most critical to machine performance. We source OEM and OEM-equivalent parts.
Labyrinth seals, mechanical seals, seal kits and gland components. Seal failures are the most common cause of unplanned expansion turbine shutdowns — we keep sourcing contacts active for these.
Inlet guide vane actuators, control system components, instrumentation and governors. Increasingly obsolete parts that require specialist sourcing — exactly the type of problem we exist to solve.
For replacement or new projects, we can manage procurement of a new ET series unit — from specification to delivery, with all required documentation and logistics support.
Complete overhaul kit packages for planned maintenance shutdowns — consolidated into a single order, single shipment, with all components confirmed compatible before dispatch.
Units that have been in service for 20–30 years often have obsolete part numbers. We trace the manufacturing lineage, cross-reference the supply chain, and find the right part — or a technically valid alternative.
If your ET unit is offline, every hour matters. WhatsApp us your model number and we will start sourcing immediately — no intake forms, no waiting for office hours.
⚡ WhatsApp Emergency LineNeed parts for other rotating equipment? See our full emergency supply service →
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Model, tag number, or part numbers — send us what you have and we'll come back with availability and pricing.