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2026-03-30What are the benefits of ductile iron ball valves
As one of the alternative steel materials, ductile iron ball valves were discovered by humans in 1949 and quickly adopted by valve manufacturing enterprises. Steel with a carbon content of less than 0....
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2026-03-30How to distinguish between cast iron ball valves and ductile iron ball valves
The opening and closing element (ball) of ductile iron ball valve is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control, among ...
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2026-02-27How to calculate the length of fasteners for flange ball valves and clamp ball valves
Single head bolt length=flange thickness * 2+valve length+nut thickness+gasket thickness+5mm. Double head bolt length=flange thickness * 2+valve length+nut thickness * 2+gasket thickness+10mm. Ball val...
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2026-02-27What is a three piece internal thread ball valve
The three piece internal thread ball valve is actually what is commonly known as a three piece ball valve. The three piece ball valve is composed of three parts: the left and right body and the middle ...
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2026-01-07What is the difference between the upper and lower expansion of a stainless steel discharge valve
The flanges of stainless steel discharge valves with upper and lower expansion types differ. Discharge valves with upper expansion typically have a straight-through diameter, while those with lower exp...
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2026-01-07What is an angle-type sludge valve and its advantages
The angle-type sludge valve is a valve used in water supply systems where fire-fighting water and domestic water are connected in parallel, to adjust the direction of water supply. When there is an urg...
