mecman hose fittings Germany mecman model mecman price

mecman hose fitting is a type of hose fitting mainly composed of three components. Metal hose fittings are used in many applications. The main component of a metal hose fitting, the bendable part, is made of braided metal wire. Metal hose fittings offer excellent performance and come in a wide variety. Different types of metal hose fittings have different characteristics, structures, and maximum temperature ratings.

mecman hose fitting technical requirements

Control of the bending radius is required. For example, if the radius length is 1.5D, then the bending radius must be within the required tolerance range. Since most of these pipe fittings are used for welding, to improve welding quality, the ends are machined with bevels, leaving a specific angle and land. This requirement is also quite strict; regulations specify the land thickness, angle, and deviation range, resulting in many more geometric dimension specifications than for standard pipe fittings. The surface quality and mechanical properties of elbows are basically the same as those of pipes. To facilitate welding, the steel material of the fitting must be the same as that of the connected pipe.

mecman hose fitting selection

Chemical equipment pipelines typically transport various corrosive fluids and require frequent flushing with solvents or water. When considering media corrosivity, the primary concern should be the relationship between the pipeline seals and the media. Nitrile rubber is widely used in hydraulic systems due to its compatibility with standard hydraulic oils. At certain temperatures, nitrile rubber is also compatible with synthetic acetaldehyde, glycol-based chemical liquids, and plant-derived liquids. However, nitrile rubber is not suitable for contact with acidic media, benzene, or synthetic oils at high temperatures; in such cases, fluorocarbon rubber should be used. Conversely, methane and refrigerant ammonia are only compatible with nitrile rubber. Therefore, most stainless steel pipelines in chemical applications use rigid seals. When selecting pipe fittings, the maximum working pressure of each fitting must be at least equal to the maximum set working pressure of the entire hydraulic system. One must consider not only the pump outlet pressure but also the relief valve cracking pressure. The maximum working pressure of hydraulic fittings can vary depending on the sealing method or temperature changes: similarly, fittings with elastic seals can achieve higher working pressures than those with rigid seals.

mecman hose fitting advantages

1. High joint strength: Based on the principle of cold work hardening of steel, the strength of the straight threads rolled onto the rebar is significantly improved, making the tensile strength of the straight thread joint higher than that of the base rebar material. 2. Stable performance: The connection process is not affected by worker skill levels, ensuring stable performance. 3. Fast connection speed: Since off-site prefabrication and on-site assembly are used, rebars with pre-threaded ends can be mass-produced and stored in the rebar yard. When the construction schedule is tight, only additional assembly workers are needed at the site. 4. Wide application range: There are basically no limitations in application scope; it is more suitable for scenarios where rebars cannot rotate, such as bent rebars, fixed rebars, and rebar cages. 5. Easy management: Mismatches between sleeves and rebars do not occur, and inspection is convenient. Operation is simple; ordinary workers can become proficient after a few hours of training. 6. Significant economic and social benefits: Shortens construction cycles, improves engineering quality, reduces energy consumption, benefits environmental protection, reduces equipment investment, and has low additional costs, offering clear economic and social benefits. 7. Low labor intensity: Processing one threaded end requires only a single step on a dedicated thread rolling machine.

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