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Refinery Wrench

A combination tool designed for refinery use. A Stillson style pipe wrench on one end and a valve wheel key on the other. Having the right tool for the job is a must. Australian supplier of Petol refinery wrenches.
A refinery wrench uses a chain to wrap around the pipe rather than rigid jaws. This provides a more secure grip on large-diameter pipe, valves and fittings while distributing load around the circumference instead of concentrating force at a few contact points.
They are widely used in oil refineries, petrochemical plants, mining operations, pipeline construction, offshore facilities and heavy industrial maintenance where large threaded fittings and pipework require substantial torque.
When correctly sized and used properly, chain-style refinery wrenches generally spread the load more evenly than conventional pipe wrenches. However, excessive force or worn chains can still mark finished pipe surfaces.
Selection depends primarily on the pipe diameter and the torque required. Choosing a wrench with sufficient chain length and handle strength ensures a safer and more effective grip.
A stretched or damaged chain reduces gripping performance and increases the chance of slipping under load. Regular inspection and timely replacement are essential for safe operation.