News
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Are butterfly valves bidirectional ？
Butterfly Valve is a type of flow control device with the quarter -turn rotational motion , It is used in pipelines to regulate or isolate the flow of fluids ( liquids or gases ) , However, A good quality and performance butterfly valve must equipped a good sealing . Are butterfly valves bidirect...Read more -
Double Offset Butterfly Valve vs Triple Offset Butterfly Valve？
what is the difference between double eccentric and triple eccentric butterfly valve? For industrial valves, both double eccentric butterfly valves and triple eccentric butterfly valves can be used in oil and gas, chemical and water treatment, but there can be a big difference between these two ...Read more -
How to determine the status of butterfly valve? open or close
Butterfly valves are indispensable components in various industrial applications. They have the function of shutting off fluids and regulating flow. So knowing the status of butterfly valves during operation—whether they are open or closed—is critical to effective use and maintenance. Determinin...Read more -
Our Brass Seat Non Rising Stem Gate Valve Passed the SGS Inspection
Last week, a customer from South Africa brought inspectors from SGS Testing Company to our factory to conduct quality inspection on the purchased brass sealed non rising stem gate valve. No surprise, we successfully passed the inspection and received high praise from customers. ZFA Valve ...Read more -
Introduction of Application and Standard of Butterfly Valve
Introduction of Butterfly Valve The application of butterfly valve: Butterfly valve is a commonly used equipment in the pipeline system, is a simple structure of the regulating valve, the main role is used to ...Read more -
Causes of internal leakage of large diameter butterfly valves
Introduction: In the daily use of large diameter butterfly valve users, we often reflect a problem, that is, large diameter butterfly valve used for differential pressure is relatively large media, such as steam, h...Read more -
The Major Differences Between Forged Gate Valves And WCB Gate Valves
If you are still hesitating whether to choose forged steel gate valves or cast steel (WCB) gate valves, please browse zfa valve factory to introduce the major differences between them. 1. Forging and casting are two different processing techniques. Casting: The metal is heated and melted...Read more -
How to choose the material of WCB/LCB/LCC/WC6/WC for the valve?
W means write, cast; C-CARBON STEEL carbon steel, A, b, and C indicate the strength value of the steel type from low to high. WCA, WCB, WCC represents carbon steel, which has good welding performance and mechanical strength. ABC represents strength level, commonly used WCB. The pipe material corr...Read more -
Causes and solutions to water hammer
1/Concept Water hammer is also called water hammer. During the transportation of water (or other liquids), due to sudden opening or closing of Api Butterfly Valve, gate valves, check vavles and ball valves. sudden stops of water pumps, sudden opening and closing of guide vanes, etc., the flow ra...Read more
