wampfler hose fittings Germany wampfler model wampfler price

wampfler hose fittings are components in hydraulic systems used to connect pipelines or attach pipelines to hydraulic elements; this is a general term for connectors that can be assembled and disassembled in fluid paths. Main types include: welded, bite-type, crimped, and flared.

Key points for manufacturing wampfler hose fittings

Stainless steel elbows, 1. Welding electrodes must be kept dry during use; titanium-calcium type electrodes should be dried at 150℃ for 1 hour, and low-hydrogen type electrodes should be dried at 200-250℃ for 1 hour (do not repeatedly re-dry, otherwise the coating is prone to cracking and peeling) to prevent the electrode coating from adhering to oil and other contaminants, which would increase the carbon content of the weld and affect the quality of the welded part. During elbow welding, repeated heating causes carbide precipitation, reducing corrosion resistance and mechanical properties. Post-weld hardening is significant, making cracks likely. If welding with similar types of electrodes, preheating above 300℃ and slow cooling to around 700℃ after welding are required. If post-weld heat treatment cannot be performed on the welded part, chromium-nickel stainless steel electrodes should be selected. 2. To improve the corrosion resistance and weldability of stainless steel elbows, appropriate amounts of stabilizing elements such as Ti, Nb, and Mo are added, resulting in better weldability. When using similar chromium stainless steel electrodes, preheating above 200℃ and tempering to around 800℃ after welding are required. If the welded part cannot undergo heat treatment, chromium-nickel stainless steel electrodes should be selected.

wampfler hose fitting applications

Pipe fittings are connection tools between pipes and serve as detachable connection points between components and pipes. They play an indispensable role in piping systems and are one of the two main components of hydraulic piping. Pipe fittings are used for straight-line connections, such as for instruments, with connection types including socket welding or threaded connections. They are mainly used for small-diameter, low-pressure pipelines, particularly at locations requiring frequent assembly and disassembly, or as final adjustments for pipelines using threaded fittings. The structural form should preferably adopt a metal-to-metal contact seal; gasket-sealed structures are typically used in general pipelines transporting water, oil, air, etc., and are manufactured from malleable cast iron. Additionally, usage requirements and price are factors considered during selection. Pipe fittings come in many varieties; commonly used fittings can generally be divided into hard pipe fittings and hose fittings. If classified by the connection method between the fitting and the pipe, hard pipe fittings include flared, compression, and welded types, while hose fittings are primarily crimped hose fittings. In hydraulic systems, the connection methods between pipes and fittings also vary; the pipe insertion end uses connecting threads. Tapered threads tighten via their conical shape and use materials such as polytetrafluoroethylene (PTFE) for sealing, mainly applied in medium- and low-pressure hydraulic systems. Fine-pitch threads provide excellent sealing performance and are frequently used in high-pressure systems, but they require combination washers or O rings for face sealing. Copper washers are sometimes used, which are more suitable for pipes with thicker walls. Its main components include the fitting body, tailpiece, and nut. During use, the fitting body is inserted into the target, and the aforementioned washers are used to seal the face; rubber seals are used between the fitting body and the tailpiece, and spherical sealing methods are sometimes employed. As pipe fittings are detachable connection elements, in addition to meeting requirements for stable connection, strong sealing, reasonable dimensions, low pressure loss, and good manufacturability, they must also meet the requirement for convenient assembly and disassembly. Therefore, do not underestimate these small pipe fittings, as their existence supports the entire hydraulic system.

wampfler hose fitting structure

Includes a female connector body with a through-hole, inside which a steel ball is embedded; a male connector pillar with a groove on its surface; a bite ring; the female connector body and male connector pillar are sealed together, with the steel ball on the body snapping into the groove on the pillar surface; the bite ring is sleeved on the outer surface of the female connector body. Characterized in that: it also includes a pull sleeve, which is sleeved on the surface of the male connector pillar and connects to the bite ring on the female connector via its internal thread.

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