Since the hydraulic power industry was finally recognised in 1925 there has been a growing concern over the contamination and cleanliness of hydraulic fluid power systems. The experience of both the designers and users of hydraulic systems highlights that 75% of system failures are a direct result of particulate contamination with up to 90% of […]
A bracing system, in its basic principle, is used to stabilise a structure during the construction process. They are required to aid the distribution of load and provide restraint to compression flanges or chords where they would otherwise buckle. Bracing is predominantly associated with bolting rather than welding as bolting bracing systems allows them to […]
Bolt Preloading is an integral part of bolting two flanged joints together. The preload developed in a bolt depends upon the level of applied torque and many other contributing factors such as bolt diameter, length, the geometry of the threads and the coefficients of friction that exist in the threads and under the bolt head […]
It is consistently heard across industry that 100% leak free joints are the desired outcome when working on flange joints. In the quest to eliminate leaks in piping and pressure vessel systems a “Zero Leakage” result is the number one priority. To achieve this, it is necessary to understand what causes leaks; what must be […]
Calibration is the necessary process used to maintain torque tool accuracy; it defines the accuracy and quality of measurements recorded by bolting equipment. Over time there is a tendency for accuracy to ‘drift’. To be confident in the results being measured there is an ongoing requirement to service and maintain bolting equipment throughout its lifetime […]
Impact wrenches are designed to break bolts loose or torque them up with extraordinary power capabilities making them perfect for nut running. The hammering action from an impact wrench can make bolting work much easier for the operator, specifically when loosening any stubborn bolt. The use of both HTL’s Pneumatic and Air Impact Wrenches is […]
By using HTL’s Quick Face Flange Machine you can stop relying on costly service companies coming to site for minor flange facing requirements; the Quick Face Flange Machine will allow you to carry out efficient and accurate resurfacing of pipe flange surfaces in house. HTL has made refacing simple; the hand operated machine tool can […]
When there is a heavy load to be lifted, HTL’s inflatable jack will provide the strength and durability required for most heavy duty applications. Measuring less than 25mm thick when uninflated as well as being highly flexible and lightweight, ensures the inflatable jack can be used when there is minimal space. Providing a non-stick surface, […]
