The Hot Tap / Cold Tap method uses an under-pressure drilling machine to branch off a new pipeline or insert a new valve.
Pipe Freeze is a method to freeze the content or medium of a section of a pipe by applying a cryogenic freezing agent that temporarily stops.
Line stop is a method used either with a mechanical plug or inflatable plug that temporarily stops the pipe flow in a section of the pipe
Valve insertion service uses advanced technology to insert a valve directly into the main operating pipeline, at tight spaces and minimum manpower, without system interruption or shutdown. Suitable for both underground and above-ground pipes. End milling for valve insertion is possible for delicate pipes.
Alstern provides advanced Composite Leak Repair Systems designed to stop leaks in live piping systems without the need for shutdowns.
Alstern offers customised leak sealing repair solutions using made-to-measure clamp systems for pipelines, fittings, and valves.
Pipeline composite reinforcement involves strengthening the structure of a pipe to restore its integrity, extend its service life, and ensure safe operation particularly in cases of corrosion, mechanical damage, or wall thinning.
Alstern provide professional and well-trained specialists to provide leak detection service on underground gas, water pipelines, concealed pipelines, air ducts, and storage vessels
As professional installers of heat trace systems, we provide electrical solutions designed to maintain the temperature of the medium inside pipelines, preventing blockages and ensuring the smooth flow of fluids.
Pipeline pigging is a technique that a pig is inserted into a pipeline for cleaning, inspection, or maintenance purposes.
Alstern employs a high-resolution laser alignment system to ensure precise alignment during both installation and maintenance of rotating machinery and vibration-exposed equipment.
Alstern provides Non-Destructive Testing (NDT) services to inspect pipeline corrosion, weld integrity, and internal flow conditions.
At Alstern, we understand that ensuring the safety, efficiency, and reliability of infrastructure requires more than routine maintenance.
Airflow balancing involves adjusting and optimizing the airflow within a building’s HVAC system to ensure that each area receives the appropriate amount of conditioned air.
Nitrogen purging is the process of replacing or removing an undesirable atmosphere with the inert gas nitrogen.
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