Earls Performance hose fittings German Earls Performance models Earls Performance prices

Earls Performance hose fittings are also known as pipe tees, tee fittings, or tee connectors. They are mainly used to change the direction of fluid flow and are installed where branch pipes diverge from the main pipeline. They can be classified by pipe diameter. They are generally made of carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon-chromium alloy, pvc, and other materials. A tee pipe is a type of chemical pipe fitting. It is a pipe connector with three openings: one inlet and two outlets, or two inlets and one outlet. Tee pipes are made of plastic, glass, cast steel, cast copper, and cast iron, primarily because the conveyed media differ. Tee pipes have equal-diameter and reducing ports, and are mainly used to change the direction of fluid flow. They are applied in fields such as medicine, water conservancy, and construction.

Earls Performance hose fitting forming methods

The hot push elbow forming process uses specialized elbow pushing machines, mandrels, and heating devices to push the blank mounted on the die forward. During movement, the blank is heated, expanded, and bent into shape. The deformation characteristic of hot push elbows is based on the principle that the volume of metal material remains unchanged before and after plastic deformation to determine the pipe blank diameter. The pipe blank diameter used is smaller than the elbow diameter. The mandrel controls the deformation process of the blank, causing the metal compressed at the inner arc to flow and compensate for other areas thinned due to expansion, thereby achieving an elbow with uniform wall thickness. The hot push elbow forming process features an attractive appearance, uniform wall thickness, and continuous operation, making it suitable for mass production. Therefore, it has become the main forming method for carbon steel and alloy steel elbows, and is also applied in the forming of certain specifications of stainless steel elbows. Heating methods during the forming process include medium-frequency or high-frequency induction heating (heating coils can be multi-turn or single-turn), flame heating, and reverberatory furnace heating. The choice of heating method depends on the requirements of the formed product and energy availability.

Earls Performance hose fitting classification

Connector structures are broadly divided into three categories: screw-type, flange-type, and quick-connect type: 1. Screw-type: For metal hose connectors with nominal diameters below 50 mm operating under higher working pressures, screw-type connections are predominantly used. After tightening the threads, the internal and external tapered surfaces of the two connectors fit tightly to achieve sealing. The cone angle is generally 60 degrees, though 74 degrees is also used. This structure offers good sealing performance, but concentricity of the two mating parts must be ensured during installation. To address common issues in practical engineering such as repeated assembly/disassembly and difficulty in achieving concentricity, the connector can be designed with a tapered surface mating with a spherical head. 2. Flange-type: For metal hose connectors with nominal diameters above 25 mm operating under general working pressures, flange-type connections are predominantly used. Sealing is achieved through tongue-and-groove mating. Loose flanges, which can rotate radially or slide axially, connect the two bodies under the tension of fastening bolts. This structure provides good sealing performance but is difficult to manufacture, and the sealing surfaces are prone to damage. For special occasions requiring quick disassembly, the holes for the fastening bolts can be slotted to create quick-release flanges. 3. Quick-connect type: For various metal hose connectors with nominal diameters below 100 mm, quick-connect types are generally used under conditions requiring rapid assembly and disassembly. They commonly use "O"-shaped seals made of fluoroplastics or special rubber for sealing. When the handle is moved to a certain angle, it acts like the claws of a multi-start thread being locked; the tighter the "O"-shaped seal is compressed, the better the sealing performance. This structure is most suitable for fire scenes, battlefields, and other situations requiring rapid assembly and disassembly. A set of connectors can be joined or disconnected within seconds without any special tools.

Earls Performance hose fitting structure

When both ends are closed and not connected: When the sleeve of the female body moves to the other end, the stainless steel balls automatically roll outward. The male body disconnects under the combined spring force of the valves in both the female and male bodies. The valves in the male and female bodies close respectively, instantly blocking fluid flow. When connected: When the male body is inserted into the female body, the sleeve returns to its original position under spring action, and the steel balls roll to lock the male body tightly. Simultaneously, the valves in the female and male bodies push against each other to open, allowing fluid flow. The O ring completely prevents fluid leakage. When both ends are open and not connected: When the sleeve of the female body is pushed to the other end, the steel balls automatically roll outward, causing the male body to be removed. Since neither the male nor the female body has valves, fluid flows outward. When connected: When the male body is inserted into the female body, the sleeve is pushed by its spring force to the previous position, causing the steel balls to lock. Fluid flows, and the O ring prevents liquid leakage.

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