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Toast Galvanized Pipe Fittings
Galvanized steel pipe fittings are attached to pipelines for conveying oil, water, gas and other liquids, these fittings are thick-walled steel impregnated with a protective zinc coating to prevent rust, corrosion and mineral buildup and withstand wet conditions. The female thread is on the inside of the fitting. The male threads are on the outside of the fitting and screw into the female threads. Threaded connections include NPT (National Pipe Thread) or BSPT (British Standard Pipe Cone) and use PTFE tape to secure the seal. Threaded galvanized steel pipe fittings come in a variety of sizes and shapes.
1. Hot-dip galvanizing
Hot-dip galvanizing, also known as hot-dip galvanizing and hot-dip galvanizing, is an effective method of metal anti-corrosion, mainly used in metal structural facilities in various industries. It is to immerse the rust-removed steel parts in a molten zinc solution at about 500 ° C, so that the surface of the steel parts adheres to the zinc layer, so as to achieve the purpose of anti-corrosion.
2. Cold galvanized
Cold galvanizing, also known as electro-galvanizing, is to use electrolytic equipment to remove oil, pickling, and then put the pipe into a solution of zinc salt, and connect the negative electrode of the electrolytic equipment, place a zinc plate on the opposite side of the pipe, and connect it to the electrolytic The positive pole of the equipment is connected to the power supply, and the directional movement of the current from the positive pole to the negative pole will deposit a layer of zinc on the pipe fittings. The cold galvanized pipe fittings are processed first and then galvanized.
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1. According to the production method, galvanized pipe connectors can be divided into pushing, pressing, forging, casting, etc.
2. According to the manufacturing standard, galvanized tube fittings can be divided into national standard, electrical standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.
3. According to its radius of curvature: Galvanized plumbing parts can be divided into long radius elbow and short radius elbow. Long radius elbow refers to the outer diameter of the pipe with a radius of curvature equal to 1.5 times, that is, R=1.5D; short radius elbow refers to the radius of curvature equal to the outer diameter of the pipe, that is, R=1.0D. (D is the diameter of the elbow and R is the radius of curvature).
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