Galvanized Union Elbows Conical Seat Male and Female Fig.98

Maximum Pressure: 25 BAR (363PSI) (2.5MPA) CLASS 150

Maximum Temperature: 200°C (392°F)

Tensile Strength: 350MPA

Hardness: HB150 (Brinell)

Elongation Rate: 10%

Suitable Applications: Water, Oil, Gas, Petro-Chemical

Material: Malleable Iron

Galvanized pipe fittings refer to the treatment of galvanized pipe fittings. The base of the pipe and molten bath have complex physical and chemical reactions, forming a zinc ferroalloy layer with a close corrosion-resistant structure. 

The alloy layer is integrated with a pure zinc layer and pipe base. Therefore, it has strong corrosion resistance. The main purpose of galvanizing is to enhance the corrosion resistance of pipe fittings. Hot-dip galvanized pipe fittings are mainly used for conveying gas, heating, and other pipeline projects. If the steel pipe body needs to be galvanized anti-corrosion treatment, the corresponding connecting pipe fittings should also be galvanized. 

The main production process of hot dip galvanized pipe fittings is as follows: Degreasing → Rinsing → Pickling → Cleaning → Fluxing→ Hot air drying → Hot-dipped galvanizing → Cooling →Passivation and Rinsing.

Difference between hot dipped galvanized pipe fittings and electro galvanized pipe fittings:

Hot dipped galvanized pipe fittings:thick zinc layer, uniform zinc layer on the inner and outer walls, long service life.

Electro galvanized pipe fittings:thin zinc layer, smooth and beautiful surface, lower cost, but inner surface zinc layer is too thin.