Стан досліджень технології обробки поверхні для відновлення клапанів

Стан досліджень технології обробки поверхні для відновлення клапанів

The surface treatment technologies and processes commonly used in the valve remanufacturing process are introduced, while the current status of the valve remanufacturing industry is analyzed. The development status of plasma surface treatment technology and laser surface treatment technology is summarized, the application of plasma surface treatment method and laser surface treatment method in the […]

 
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Порівняння та аналіз швидкості витоку метану та гелію для випробування клапанів на низький рівень витоку

It is introduced that the test media specified in the relevant standards for low leakage test of valves are methane and helium, and in the actual test process, there is the phenomenon that valve manufacturers use helium for test evaluation in advance and then send the third party for methane low leakage type test. The […]

 
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Вибір матеріалу кованого сталевого низькотемпературного кульового клапана

The characteristics and structure material selection of forged steel low temperature globe valves First, the design of the low temperature valves The design of the cryogenic valve has the following requirements, depending on the working conditions: (1) The valve should have a long-term working ability in low temperature medium and ambient temperature. (2) Valves should not be a significant source of heat for […]

 
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При монтажі трубопровідної арматури слід звернути увагу на наступні три моменти

First, be sure to check before installation Check carefully that the valve type and specifications meet the drawing requirements. Check the valve stem and disc opening for flexibility, jamming and skewing. Check the valve for damage and whether the threaded valve thread is positive and intact. Check that the combination of the valve seat and […]

 
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How to choose the right butterfly valve?

Butterfly valve with disc type opening and closing a reciprocating swing around 90 ° to open and close or adjusting medium flow of a valve. Butterfly valve is not only simple in structure, small in volume, light in weight, low in material consumption, small in installation size, small in driving torque, easy to operate and […]

 
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