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What is a ball valve? Ball Valve is the quarter-turn valve of which the opening and closing member (ball) is driven by the valve stem and rotates around the axis of the ball valve. What are the ball valve types? In terms of valve structure, we have floating ball valve and trunnion-mounted ball valve. The ball inside the floating ball valve is free to float. In contrast, the trunnion ball is fixed ...
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The knife gate valve has a shearing function, which can scrape off the adhesive medium on the sealing surface and automatically remove debris. The stainless steel gate valve can prevent sealing leakage caused by corrosion. The knife gate valve is suitable for coal, slag discharge, urban sewage treatment, food, paper, medicine, petroleum, chemical and other oil, water, steam pipeline...
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To understand the difference between globe valve and stop check valve, we should first figure out what is a stop check valve. Stop check valve combines the functions of a general globe valve and check valve, which means besides isolating and regulating the flow rate, it can also prevent reverse flow. From the appearance, globe valve and stop check valve almost look the same. The main difference li...
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People often have a confusion between a knife gate valve and slide gate valve. In brief, knife gate valve uses a blade to cut through thick liquids or gas; while a slide gate valve utilizes a slide plate to shut off flow of dry bulk material. In this article, we will discuss their differences in details. Knife Gate Valve Knife gate valves were originally designed for pulp and paper industry. ...
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1. What is the difference between Cast iron and Cast steel? The difference between Cast iron and Cast steel is their carbon content. Cast Iron with carbon content greater than 2.06% is iron; steel with carbon content between 0.02% and 2.06% is steel. 2. What is carbon steel? How many categories does it fall into? An alloy of carbon and iron (when the carbon content is between 0.02% and 2.06%) is c...
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If the medium remained in the cavity after the cryogenic gate valve is closed, the residue will gradually absorb the heat in the air and re-gasify. After the gasification, it will expand violently up to 600 times and generate extremely high pressure on the valve, which is called 'abnormal boost'. When the unusual occurrence happens, the wedge will be pressed firmly onto the seat and can’t be opene...
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