Werthenbach hose fittings Germany Werthenbach model Werthenbach price

Werthenbach hose fittings are translated from the English word bushing, professionally known as reducing fittings. They are generally machined after cutting and forging hexagonal bars. There are many types of threads used. They are internal and external threaded pipe fittings that connect two sections of pipes with different diameters, playing an irreplaceable role in pipe connections.

Werthenbach hose fitting selection

How to select high-pressure hose fittings: 1. Hose size: The inner diameter of the hose must be appropriate. If the hose is fixed with clamps or passes through spacers such as steel plates, pay attention to the outer diameter of the hose. 2. Working pressure: According to the safety factor for hydraulic hoses specified by relevant international standards, the recommended working pressure is generally one quarter of the minimum burst pressure of the hose. 3. Impact pressure and fatigue life: Hose selection is determined based on the maximum pressure value of the hydraulic system design. Impact pressure does not seriously affect the fatigue life of the hose. For hydraulic systems with particularly frequent impact pressure, it is recommended to select hose products with special resistance to pulsating impact. 4. Temperature range: Users should use hoses within the temperature range permitted by the hose quality specifications. For continuous operation, frequent cooling is recommended. 5. Chemical compatibility: If special hydraulic media are used, users must ensure that the inner and outer layers of the selected hose assembly, the fittings, and the O-ring seals are compatible with the medium.

Werthenbach hose fitting classification

Inert gas type: Mainly used for vacuum piping and compressor pressure tests. The sleeve and plug have built-in automatic shut-off valves suitable for vacuum applications. A vacuum degree of 1.3×10Pa can be maintained in the disconnected state. Precautions for use: Do not exceed the maximum operating pressure limit during use. Do not use outside the operating temperature range to prevent wear or leakage of sealing materials. Do not subject to artificial hitting, bending, or stretching to prevent damage. Do not connect or disconnect under pressure or residual pressure. Do not disassemble. Use sealing material for external pipe threads. Do not subject to artificial hitting, bending, or stretching to prevent damage. Do not use for fluids other than the applicable fluid. Do not use for purposes other than quick couplings. Do not connect with quick fluid couplings from other manufacturers. Do not use in places mixed with metal powder or sand/dust to prevent malfunction or leakage. Attachment of debris will cause malfunction or leakage. A brake valve must be installed before the quick coupling. Do not use as a hinge joint. Use in machines with vibration or shock will reduce durability. Cold water/warm oil type: Mainly used for general-purpose mold interfaces. Completely simplifies mold exchange operations, enhances rust prevention, and offers various types. Precautions for use: Note: Do not use for fluids other than the applicable fluid. Do not exceed the maximum operating pressure limit during use. Do not use outside the operating temperature range to prevent wear or leakage of sealing materials. Do not subject to artificial hitting, bending, or stretching to prevent damage. Do not use in places mixed with metal powder or sand/dust to prevent malfunction or leakage. For threaded installation, do not exceed the maximum tightening torque to prevent damage. Do not use cracked hoses to prevent leakage or detachment. Use in machines with vibration or shock will reduce durability. The working fluid must be clean fluid filtered through a filter. Do not disassemble quick couplings. Semiconductor type: Mainly used for semiconductor and fluororesin semiconductor production equipment/devices. The body material should be corrosion-resistant metal or all-resin products made of molded fluororesin (PFA). Precautions for use: Note: Perform dissolution tests of sealing materials with the fluid to confirm suitability. Use Teflon sealing tape for external pipe threads. Do not exceed the maximum tightening torque when installing threads to prevent damage. To reduce friction (insertion load) and protect the "O"-ring seal during insertion, apply the working fluid or pure water to the "O"-ring seal or the quick coupling (the folded part of the "O"-ring seal). During disconnection, since a small amount of fluid flows out, compressed air can be used to discharge the fluid inside the quick coupling before disconnection to prevent hazards. Do not use as a hinge joint. Do not use for purposes other than quick fluid couplings. Do not subject to artificial hitting, bending, or stretching to prevent damage. Do not pressurize sleeves or quick coupling bodies alone to prevent the valve from flying out. When used as a single unit, the specified dust cover must be installed. Do not disassemble quick couplings.

Werthenbach hose fitting installation

Cut the pipe to the required length using a sawing machine or specialized pipe cutting tool. Flame cutting (such as flame cutting) or grinding wheel cutting is strictly prohibited. Remove burrs from the inner and outer circles of the pipe end, metal chips, and dirt. Remove rust preventive agents and dirt from the pipe fittings. Also ensure the roundness of the pipe. Slide the nut and ferrule onto the pipe in sequence. The cutting edge (small diameter end) at the front of the ferrule should be at least 3mm from the pipe end. Then insert the pipe into the tapered hole of the fitting body until it bottoms out. Slowly tighten the nut while rotating the pipe until it stops moving, then tighten the nut another 2/3 to 4/3 turns. Disassemble and check whether the ferrule has cut into the pipe and if the position is correct. The ferrule must not have axial movement but may rotate slightly. After passing inspection, retighten the nut.

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