Hellermann hose fittings Germany Hellermann model Hellermann price

Hellermann hose fittings refer to threaded pipe connectors, which are the most common type of pipe fittings in industrial and daily applications. They are mainly used for small-diameter low-pressure pipelines, for parts that require frequent assembly and disassembly, or as final adjustments for pipelines using threaded fittings. The structural form should preferably adopt a metal-to-metal contact sealing structure. Gasket sealing structures are typically used in general pipelines transporting water, oil, air, etc., and are manufactured from malleable cast iron. The significance of threaded fittings is that they make pipe connections simpler and disassembly/replacement easier, greatly saving the cost of pipe connections. They are mainly used for small-diameter low-pressure pipelines, for parts that require frequent assembly and disassembly, or as final adjustments for pipelines using threaded fittings. Features of threaded fittings: high joint strength and good ductility, fully utilizing the strength and ductility of the base material of the reinforcement bar. Convenient, fast, and simple operation. No electricity, no gas, no open flame operations, no oil leakage, and no pollution during construction connection; corrosion-resistant, leak-proof, anti-detachment, safe, and long service life. Application fields: fluid and gas transmission systems in industries related to hydraulics, such as automotive, engineering machinery, lathes, machines, metallurgy, petroleum, mining, construction, chemical industry, shipbuilding, spacecraft, military industry, textiles, marine, entertainment, electronics, etc.

Hellermann hose fitting process flow

Stamping forming: Stamping forming elbows were the earliest forming process applied to mass production of seamless elbows. In the production of commonly specified elbows, they have been replaced by hot pushing or other forming processes. However, for certain elbow specifications with small production quantities, excessively thick or thin walls, or special product requirements, stamping forming is still used. Stamping forming of elbows uses pipe blanks with an outer diameter equal to that of the elbow, directly pressed into shape in a die using a press. Before stamping, the pipe blank is placed on the lower die, the inner core and end die are inserted into the pipe blank, and the upper die moves downward to start pressing. The elbow is formed through the constraint of the outer die and the support of the inner die. Compared with the hot pushing process, the appearance quality of stamping forming is inferior. During the forming of stamped elbows, the outer arc is in a stretched state, with no excess metal from other parts for compensation, so the wall thickness at the outer arc is reduced by approximately 10%. However, due to its suitability for single-piece production and low cost, the stamping elbow process is mostly used for small-batch, thick-walled elbow manufacturing. Stamped elbows are divided into cold stamping and hot stamping, with the choice usually based on material properties and equipment capabilities. The forming process of cold-extruded elbows uses a dedicated elbow forming machine. The pipe blank is placed in the outer die, and after the upper and lower dies close, the pipe blank moves along the gap reserved between the inner and outer dies under the push of a push rod to complete the forming process. Elbows manufactured using the inner and outer die cold extrusion process have an attractive appearance, uniform wall thickness, and small dimensional deviations. Therefore, this process is often used for forming stainless steel elbows, especially thin-walled stainless steel elbows. This process requires high precision for the inner and outer dies and has strict requirements for the wall thickness deviation of the pipe blanks.

Hellermann hose fitting specifications and applications

Fitting specifications are classified based on the interface, mainly including two types: one-half inch and three-quarters inch, which correspond to 4-part pipes and 6-part pipes. They are suitable for faucet fittings or water pipe connectors, offering a wide range of applications. Including spray guns, correct specification selection allows for quick connection. Whether connecting valves, water valves, or spray gun fittings, a click sound indicates proper installation, after which the nut can be gently tightened. A water pipe connector is a component capable of connecting water pipes, categorized into three types based on usage: self-locking, ferrule-type, and external thread. Materials vary, such as galvanized or chrome-plated surfaces, basically made from plated alloy materials, some with a matte finish. Its specifications are more varied than those of quick-connect fittings, including one-quarter, three-quarters, three-eighths, one-half, etc., meaning it adapts to slightly more water pipe sizes. Select quick-connect fittings with similar specifications to the water pipe. For a 4-part pipe, the corresponding quick-connect fitting must also be 4-part, reaching 20 millimeters. First, install it on both ends of the connecting water pipe, then gently hold and rotate by hand to tighten the nut. A clicking sound indicates full engagement. After tightening, it provides a sealing effect. Finally, turn on the faucet to check for leaks at the interface. If there are none, the installation is correct.

Hellermann hose fitting manufacturing process

It includes a sealing ring, a connecting part, and a union nut for connecting the pipe. Therefore, the sealing ring is designed as a ring cutter with one or more cutting edges. By screwing the union nut onto the connecting part, the ring cutter can be inserted into the cavity of the connecting part, which has a conical surface. The outside of the sealing ring has an annular reinforcement on the nut side. The annular reinforcement forms an annular surface at the transition zone towards the narrow ring part. The inclination of said annular surface, formed by the reinforced part of the ring cutter, relative to the pipe axis is 45°-90°. When fully assembled, the axial length of the annular reinforcement allows the transfer element arranged on said annular surface to transfer its own negative image structure or itself onto the end face of the connecting part. The transfer element has a three-dimensional profile, the negative image of which can be transferred onto the surface of the connecting part. Similar to using a pressure mold, the assembler applies pressure to imprint the negative image onto the surface of the connecting part.

Weidou Intelligent Technology professionally sells German Hellermann oil pipe fittings, Hellermann hose fittings, Hellermann pipe fittings, Hellermann pipe component fittings, Hellermann rotary joints, Hellermann metal fittings, Hellermann brass fittings, Hellermann stainless steel fittings, Hellermann plastic fittings, Hellermann hydraulic pipe fittings, Hellermann adapter fittings, Hellermann threaded pipe fittings, Hellermann straight-through fittings, Hellermann articulated fittings, Hellermann ferrule-type fittings, Hellermann original German imports. Welcome customers to inquire and order.