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292020-05What are the sealing rings made of? What are the characteristics?
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152020-05Corrosion is one of the most important elements causing valve damage.Therefore, valve corrosion protection is an important consideration in valve protection.
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172020-04The valves are indispensable for the conventional water production process in water plant, such as raw water intake
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102020-04Commonly used valve material: The valve body, bonnet and gate (disc) are one of the main parts of the valve and bear medium pressure directly.
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272020-03Leakage of valve body and bonnet: Causes: 1. Low casting quality of cast iron, defects of sand eyelet, loose structure and slag inclusion on valve body and bonnet body 2. Freezing cracking within days;
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132020-03High performance rubber liner butterfly valve is a well-structured butterfly valve, which is especially suitable for regulating or switching the flow and pressure of various tap water...
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072020-01Valve is an important component in the pipeline system of petrochemical plant. It is one of the main leakage sources in the plant because of its variety and quantity...
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282019-12In the complete set of water supply equipment, whether no negative pressure water supply equipment or variable frequency constant pressure water supply equipment...
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142019-121. The handwheel and handle of manual valve are designed according to the hand force of ordinary people, considering the strength of sealing surface and necessary closing force...
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072019-12Heat treatment technology is an important means to obtain good properties of various metal materials.In many practical applications, reasonable selection of materials and various forming processes can not meet the mechanical properties...
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