Bolt Tensioning is now the preferred method of tightening bolts & stud on all critical applications. PST range of Bolt Tensioners by Powermaster provides optimum solutions to bolt tensioning requirements.

PST Series, Bolt Tensioners are designed for operation in a wide variety of applications including pipeline flanges, heat exchangers, pressure vessels, compressor covers, boilers feed pumps, anchors bolts and many others.

PST Series standard variable tensioners are designed to provide a wide range of flexibility, covering stud sizes 3/4” to 5.3/4”. Different stud sizes are accommodated by simply changing adaptor kit consisting of Puller, Bridge & Nut Driver, while utilizing the same load cell.

The PST Series tensioner operate at a maximum pressure of 1500Bar & utilizes high strength AISI alloy steel parts for long lasting performance. These tensioner has an excerption stroke of 15mm. Integral stroke indicator allows piston stroke to be viewed & measured indication of stroke is provisioned with over stroke limit indication.

A choice of manual or air driven hydraulic pump units both compatible for use with standard PST stud bolt tensioners is available. Both models are easy to operate and are supplied complete with a calibrated pressure gauge and quick release outlet coupling. The air driven PUAH1500 model also incorporates an integral inlet air filter regulator & lubricator.

Powermaster ultra-high pressure hoses are compatible for use with all Powermaster bolt tensioning products up to a maximum of 1500 bar working pressure. Each hose is supplied complete with quick connect coupling and has a safety factor of 3:1 on maximum working pressure. Four standard length are available with special lengths available on request. Spare coupling, nipples and washers are also available.