Ductile Iron Ball Valve

Ductile iron ball valve

The standard material of ductile iron valves is: 1. The cast iron material on the valve generally includes ductile iron = Q malleable cast iron = K gray cast iron = Z. In addition, the most commonly used and basic ones are often omitted. For valves with pressure levels below 1.6MPa; 2. Gray cast iron: Gray cast iron is suitable for media such as water, steam, air, gas and oil with a nominal pressure PN ≤ 1.0MPa and a temperature of -10°C to 200°C.

Ductile iron valves are commonly used in engineering pipelines. Ordinary standard single head or double head, carbon steel is enough. The selection of materials is mainly related to the use environment and pipeline flange pressure. Ductile iron is a kind of cast iron material. Ductile iron is obtained by spheroidizing and inoculation treatment to obtain spherical graphite, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thereby obtaining higher strength than carbon steel.

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