GRUNDFOS hose fittings Germany GRUNDFOS model GRUNDFOS price

GRUNDFOS hose fittings are a type of high-quality flexible piping in modern industrial pipeline systems. They mainly consist of bellows, braided mesh, and fittings. The inner tube is a thin-walled stainless steel bellows with a spiral or annular shape. The braided mesh on the outer layer of the bellows is woven from stainless steel wire or steel strip according to specific parameters. The fittings or flanges at both ends of the hose are matched to the fittings or flanges of the customer's piping. The bellows of the hose are formed by high-precision plastic deformation of extremely thin-walled seamless or welded stainless steel pipes. Since the elastic characteristics of the bellows profile determine that the hose has good flexibility and fatigue resistance, it can easily absorb cyclic loads from various motion deformations, especially having the ability to compensate for large displacements in pipeline systems. Media visualization (media visible), process automation.

GRUNDFOS hose fitting installation

Installation is the most critical step, directly affecting the reliability of the seal. Specialized pre-assembly tools are generally required. Fittings with small pipe diameters can be pre-assembled in a vise. The specific method is to use a fitting body as the base, pressing the nut and ferrule onto the pipe. The main types include bite-type straight pipe fittings, bite-type end straight pipe fittings, and bite-type tee pipe fittings. The depth of the tapered hole in these fitting bodies often varies, which can result in the pre-assembled pipe on a straight fitting body not forming a tight spherical contact with the inner conical surface when connected to a tee fitting body, causing leakage. This issue is often overlooked. The correct approach is to pre-assemble the corresponding connection end with the same type of fitting as used on one end of the pipe, maximizing the avoidance of leakage. Try to maintain coaxiality between the pipe and the fitting body; excessive deviation of the pipe will also cause seal failure. Pre-assembly force should not be too great. The inner cutting edge of the ferrule should just embed into the outer wall of the pipe, and the ferrule should not show obvious deformation. If the ferrule deforms severely during pre-assembly, it will lose its sealing function.

GRUNDFOS hose fitting common issues

1, clear residue. When connecting water pipes, completely remove various residues from the pipeline. This prevents valve core damage, blockages, clogging, and leaks. At the same time, clean the surface to prevent residual construction materials. 2, do not apply excessive force when switching. For any household accessory, you do not need to use excessive force when switching; simply shake or rotate it. Even traditional home fixtures do not require excessive effort to tighten. In particular, do not use the handle as a railing for support. After a period of use, disassemble and clean products with outlet filter covers to remove debris. Products with plastic hoses should be kept in a naturally stretched state to prevent rupture. 3, keep household tee fittings extendable. The shower metal bellows of household hose fittings should be kept in a naturally stretched state. Do not wrap it around the faucet when not in use. At the same time, whether in use or not, ensure no dead angles form at the connection between the plastic hose and the valve body to prevent hose rupture or damage. 4, pay attention to regular cleaning. Domestic water pipe fittings that are not used for long periods may also lead to incomplete closure, water seepage, loose handles, loose connections, and leaks, which customers can often handle themselves.

GRUNDFOS hose fitting structure

Bite-type pipe fittings consist of three parts: fitting body, ferrule, and nut. When the ferrule and nut are placed on the steel pipe and inserted into the fitting body, tightening the nut causes the front outer side of the ferrule to fit against the conical surface of the fitting body, and the inner edge evenly bites into the seamless steel pipe, forming an effective seal. Basic meaning: Bite-type tee terminal fittings, also called tee terminal fittings, bite-type reducing tees, and bite-type equal tees. Common specifications: 10-10, 6-6, 8-8, G1/2-8, 14-14, 22-22, 8-6, 10-8, 14-10. Common materials: 20#, 1Cr18Ni9Ti, 304, 316, 316L. Material knowledge Nominal pressure: 2.5MPa, 16Mpa, 25MPA, 64MPA. Applicable media: oil, water, gas, and other non-corrosive or corrosive media. Piping: Ordinary precision seamless steel pipes with diameters Ф4 to Ф42. Tapered pipe threads: ZG, R, G, PT, NPT, etc. Applications: Widely used in many industries such as chemical, pharmaceutical, petroleum, scientific experiments, and electrical engineering.

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