GATES hose fittings Germany GATES model GATES price

GATES hose fittings connect different hydraulic components to form a closed-loop hydraulic system, serving as a connecting accessory. They connect different hydraulic components (pumps, delivery lines, directional valves, shut-off valves, hydraulic motors, hydraulic cylinders, and some auxiliary components such as level gauges, thermometers, pressure gauges, etc.) to form a closed-loop hydraulic system, acting as a connecting accessory.

GATES hose fitting working principle

1. The basic structure of this type of fitting is relatively simple, consisting of only three basic parts: the fitting body, the ferrule, and the nut. The main component is the ferrule, which is a metal ring with a cutting edge at the front. International standard GB3764-83 recommends that the cutting edge be uniformly I type shape. 2. The ferrule, which provides the primary sealing in this fitting, moves axially along the internal tapered bore of the fitting body under the axial force of the tightening nut R. Simultaneously, the cutting edge end undergoes radial contraction due to the radial reaction force R', eliminating the gap between the ferrule and the tube, causing the cutting edge to contact the tube surface. At this point, the tube no longer rotates; continuing to rotate the nut causes the ferrule's cutting edge to bite firmly into the tube, ensuring a seal. Another sealing interface is formed where the 13° chamfer at the tip of the ferrule's cutting edge intersects with the outer circumference (ridge), making tight contact with the annular conical surface of the fitting body to create a sealing band; this is the main sealing area of the ferrule-type seal. The 86° conical surface at the rear of the ferrule undergoes radial contraction under the force of F, tightly gripping the connected tube, while the middle section bulges slightly. This gives the ferrule axial elastic deformation, which is beneficial for both ferrule sealing and preventing the tightening nut from loosening.

GATES hose fitting structure

The ferrule tube fitting consists of three parts: the fitting body, the ferrule, and the nut. When the ferrule and nut are placed on the steel tube and inserted into the fitting body, tightening the nut causes the outer side of the ferrule's front end to seat against the conical surface of the fitting body, while its inner edge uniformly bites into the seamless steel tube, forming an effective seal. Basic description: Ferrule-type tee terminal fittings, also known as tee terminal fittings, ferrule-type reducing tees, and ferrule-type equal tees. Common specifications: 10-10, 6-6, 8-8, G1/2-8, 14-14, 22-22, 8-6, 10-8, 14-10. Common materials: 20#, 1Cr18Ni9Ti, 304, 316, 316L. Material knowledge - Nominal pressure: 2.5MPa, 16Mpa, 25MPA, 64MPA. Applicable media: oil, water, gas, and other non-corrosive or corrosive media. Piping: Seamless steel tubes with ordinary precision, from Ф4 to Ф42. Tapered pipe threads: ZG, R, G, PT, NPT, etc. Applications: Widely used in many industries such as chemical, pharmaceutical, petroleum, scientific experiments, and electrical engineering.

GATES hose fitting maintenance

1. Cut off the leaking pipe section. This is a relatively simple method for handling water pipe leaks: cut off the section and reinstall it. This method is not difficult; as long as the pipes are not concealed within walls, it can be implemented and is quite thorough, since the advantage of PP-R pipes is that the welding strength is higher than the base material, ensuring the overall tightness of the pipeline. 2. Use adhesive. This method is generally only suitable for pipelines with relatively low pressure; the operating pressure must not exceed 4 kg. This method is not very suitable for PP-R products, because the PP-R material makes it difficult for adhesives to dissolve/bond effectively. 3. Water pipes will age and become damaged over time, so leaks are normal. If inspection reveals a leak at the drain connection, first cut off the end of the damaged pipe, purchase a new pipe, align it with the existing drain connection, install it, replace the original damaged pipe section, insert it into the original pipe alignment, apply adhesive to ensure a tight bond between the new and old pipes. 4. First, use a small hacksaw to cut off the leaking section—the cut must be flat. Gently sand the newly exposed port with sandpaper, but do not remove too much material. Wipe the port clean with a clean cloth. Apply special adhesive to the port and let it air dry for a moment; meanwhile, apply adhesive inside the 'bamboo joint' fitting. Connect the port and the 'bamboo joint', rotating repeatedly until secure.

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