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The biggest difference between a knife gate valve and a flanged gate valve is that gate valve is manufactured according to ANSI , while knife gate valve meets TAPPI Standards. Gate valves are also flanged, wider in size, ANSI pressure rated, and their API leak tightness standards need to be met as well. Gate valves are bi-directional, widely used in fluid applications, and they only come with meta...
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Bronze and brass are two of the most common materials used to produce valves. This preference comes because both metals are quite malleable. They both are artificially made from natural metallurgical elements: brass is made from copper and zinc, while another is made primarily from copper and tin. Each metal offers valves numerous and various advantages...
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What is valve corrosion? Corrosion of valves is usually understood as the damage to the metal materials of the valve caused by the chemical or electrochemical environment. Since the corrosion appears in the spontaneous interaction between the metal and the surrounding environment, the focus of corrosion prevention is how to isolate the metal from the surrounding environment or more use of non...
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There are four common types of plug valves, each of which has specific characteristics and advantages. Lubricated plug valve The lubrication plug valve uses lubricant to reduce frictions and make each port tightly sealed. Lubricants are basicly base oils that increase the viscosity of moving parts, such as amorphous or fumed silica, which are injected between the valve plug surface and the valve b...
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As winter approaches, the temperature gradually drops and the valves outsides are getting greater chance tobe froze. At this time, the pipeline will easily fail if not take some acts. And when it comes to some high-risk working conditions, accidents may also occur. Therefore, the anti-freezing treatment of valves is crucial to industrial equipment. Before th...
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The V-type ball valve is a single-seat ball valve with a metal seat. The adjustment performance is the best in the ball valves, whose flow characteristics are equal percentages, and the adjustable ratio is up to 100:1. It has a shearing action between the V-shaped slit and the metal seat, and is especially suitable for media containing fibers, tiny solid particles, and slurry. During the...
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