-
There are many types of valves, each with its own advantages and disadvantages. Below are the advantages and disadvantages of five major valves, including gate valves, butterfly valves, ball valves, globe valves, and plug valves. 1. Gate valve Gate valve refers to a valve where the closing element (gate) moves vertically along the channel axis. 1.1 Advantages ① Low fluid resistance, small torque r...
View More
-
1. Selection instructions for gate valve In general, gate valves should be preferred. Gate valves are not only suitable for media such as steam and oil, but also for media containing granular solids and high viscosity, and are suitable for valves in venting and low vacuum systems. For media containing solid particles, the gate valve body should have one or two purge holes. For low-temperature medi...
View More
-
Working principle of globe valves Assuming there is a water supply pipeline with a cover, water is injected from the bottom of the pipeline and discharged towards the direction of the pipe mouth, and the cover of the outlet pipe mouth is equivalent to the closing part of the globe valve. If you lift the pipe cover up with your hand, the water will be discharged outward. If you cover the pipe cover...
View More
-
(1) Selection principle of valves for water supply pipelines 1. When the diameter of the pipeline is less than 50mm, a globe valve should be used; When the pipeline diameter is greater than 50mm, gate or butterfly valves should be used; 2. When it is necessary to adjust the flow and water pressure, regulating valves and globe valves should be used; 3. For parts with low water flow resistance (such...
View More
-
304 austenitic stainless steel (new standard 06Cr19Ni10 steel, old standard 0Cr18Ni9 steel) is widely used in industries such as petrochemical, metallurgical machinery, aerospace, food processing, instruments, household appliances, and hardware manufacturing due to its good toughness, plasticity, weld-ability, corrosion resistance, and non-magnetism at room and low temperatures. The reason why 304...
View More
-
Metal valves can be said to be the most susceptible key component structure to corrosion failure in engineering equipment. Usually, the sealing surfaces, valve stems, diaphragms, small springs, and other valve components of metal valves are made of first-class materials. The valve body, valve cover, etc. are made of secondary or tertiary materials. Valves used for high-pressure, highly toxic, flam...
View More
