MAVEL hose fittings Germany MAVEL model MAVEL price

MAVEL hose fittings consist of hollow screws, combination washers, and tubing connectors. They use hollow screws to compress two combination sealing gaskets against the connector body for sealing. This pipe fitting is an elbow connector, featuring adjustable piping direction, easy installation, and compact space usage, with operating pressure less than 32 MPa. Pipe fittings are detachable connectors used between pipes and hydraulic components. The connection threads of pipe fittings can be standard fine threads or tapered threads; tapered threads are commonly used in medium and low-pressure systems, while standard fine threads are commonly used in high-pressure systems.

MAVEL hose fitting classification

Bottom drainage: Bottom drainage has the drain outlet on the floor, with the drain pipe passing vertically through the floor slab directly to the lower level. When installing bottom drainage, I prefer to install the P-trap at the lowest point, allowing other drains to share the same P-trap. For drainage, a 50 P-trap is generally used; if there are other drains, add a tee, specifically an oblique tee as shown in the diagram above, to ensure smooth water flow. Kitchen drainage is often complex, sometimes confusing even for installers. The difficulty mainly arises from limited space, with other appliances installed in the cabinet, such as garbage disposals, instant water heaters, and water purifiers, some also requiring connections to washing machines. Side drainage: The side drainage outlet is on the main kitchen pipe, above the floor, with part of the drain pipe running horizontally to the main pipe. Bottom drainage has a P-trap below the floor slab; installing another P-trap above the slab provides double odor protection. Side drainage connects horizontally to the main drain pipe, generally allowing only one P-trap. Having installed such drainage, a 45-degree elbow is connected to the horizontal pipe, followed by a half P-trap. Note that this P-trap must be triangular, as circular ones are difficult to connect, followed by other pipes. Generally, side drainage is not as smooth as bottom drainage. Later, when visiting the building materials market, I discovered specialized side drainage products, which serve the same purpose as self-assembled ones.

MAVEL hose fitting usage

How to ensure sealing in the connection between hose fittings and hoses? The connection between hose fittings and hoses is simple, but ensuring a seal is critical. So, how is the seal achieved? Generally, regardless of the variety of hose fittings, the appropriate transition fitting must be selected based on the type of hose fitting. If the hose is a standard water pipe, use a transition fitting with one female thread and one spigot end for the water pipe, secured with a hose clamp. If both ends of the hose have female threads, use a transition fitting with one female thread and one male thread. If both ends of the hose have male threads, use a straight-through female-to-female transition fitting. Hydraulic quick-change couplings must withstand high pressure, so high-pressure oil hoses are mostly used. Both ends of oil hoses usually have female threads, allowing direct connection. As for hydraulic fittings, no additional O-rings are needed for sealing; the product itself has one concave end and one convex end, achieving a complete seal upon connection.

MAVEL hose fitting precautions

1. Before cleaning pipes with acidic detergents, remove residual welding slag, stains, varnish, and other substances to prevent chemical reactions that could cause unnecessary damage to the pipes and affect future use. 2. To ensure normal operation of hose fittings, protect them carefully. During transportation, disassembly, or pickling, avoid damaging threads, pipelines, and sealing surfaces; the best method is to seal them with tape. 3. Protect all threads of the hose fittings with acid-resistant plastic tape or rubber tape. Alternatively, after water washing, apply dry oil to the threads, let it dry completely, and then immerse in acid solution to remove rust. 4. During pipe cleaning, pay special attention to markings on the pipes and preserve their integrity as much as possible. Complete all welding tasks before pickling. In daily use, ensure necessary protection for hoses.

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