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One side is connected to a flexible supply hose; the other may be attached to a manifold, valve, tool, or another hose. A female coupler is used on the supply side, and a male nipple is used on the receiving side. Fitting profiles have identifiable geometry on the male end, but care must be taken to use a compatible coupler.
Push-to-pull, push-to-connect, push-in, push-fit, or instant fittings are a type of easily removed compression fitting or quick connect fitting that allows an air (or water) line to be attached, nominally without the use of tools (a tool is still usually required for cutting tubing to length and removal).
A messenger line or just messenger is relatively light cordage used to pull a heavier cable across a gap or through a tube or duct. [1] [2] The term is also used for a line used to pull or lower a package along a downline or jackstay. [3] A heaving line is a rope with a weighted end which can be thrown relatively easily across a gap. If it is ...
A small pneumatic vacuum generator that removes air from the inside of a fire hose, making it smaller and firm, and therefore easier to pack and less space-consuming. HPF See High pressure fog. Hurst tool See Hydraulic spreader. Hux tool Largely obsolete hydrant wrench made of stamped metal with holes sized for the hydrant valve. Hydrant
An air line is a tube, or hose, that contains and carries a compressed air supply. In industrial usage, this may be used to inflate car or bicycle tyres or power tools worked by compressed air, for breathing apparatus in hazardous environments and to operate many other pneumatic systems.
A nylon loop hose strap, with a structural firefighting glove for size comparison. A hose strap (also known as a rope hose tool) is a piece of firefighting equipment. It can be "a short length of rope with an eye loop at one end and a metal hook at the other" [1] or a piece of "flat nylon webbing sewn into a four-foot loop". [2]
Compressed air is injected at the duct inlet and flows through the duct and along the cable at high speed. (Preferably, no suction pig is used at the cable head.) The high speed air propels the cable due to drag forces and pressure drop. The friction of the cable against the duct is reduced by the distributed airflow, and large forces that ...
A towing sock or wire rope puller or wire pulling grip is a device that connects to the end of a cable, such as a power cable, in order to pull it through a tube or tunnel. [1] It works by tightening around the cable when pulled, in the same manner as a Chinese finger trap . [ 2 ]