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Crimped or pressed connections to use special fittings permanently attached to tubing with a powered crimper. The fittings, manufactured with a pre-installed sealant or O-ring, slide over the tubing to be connected. High pressure is used to deform the fitting and compress the sealant against the inner tubing, creating a leakproof seal. [31]
The valve must always be installed vertically, usually at the top of a short vertical pipe. If the valve body is filled with water, the float moves upwards and closes the valve. If air collects in the valve body, the waterline lowers, as does the float, and the valve opens to release it. [ 4 ]
These are internally swaged hose couplings and commonly found on larger diameter fuel oil hoses used in higher pressure applications or where the hose is exposed to higher end pull, e.g., Oil Suction & Discharge (OS&D) hose). [6] They are installed with special hydraulic ram machinery and special dies.
The main advantage of the fitting is in high pressure applications (i.e. more than 50 bar). The name stems from the shape of the fitting, having a large circular section connected to a thinner pipe, generally similar to the shape of a banjo. [1] Two banjo fittings (upper center of photo) atop automotive brake calipers.
Can refer to several connector standards, colloquially known as ACME, Bayonet, Dish or Euronozzle connectors. [3] DIN 477-1 No. 4: A DIN standard for gas cylinder valves for test pressures up to 300 bar (4,400 psi). EN 15202 [9] A European standard for LPG equipment and accessories, specifying LPG cylinder valve connections. [10] EN 417
Fittings are also used to split or join a number of pipes together, and for other purposes. A broad variety of standardized pipe fittings are available; they are generally broken down into either a tee, an elbow, a branch, a reducer/enlarger, or a wye. Valves control fluid flow and regulate pressure.