In municipal pipelines, chemical production, heating fire, and new energy projects, valves are never unobserved accessories, but “snip parts” that transmit fluids and secure systems. However, many purchasers and engineers, faced with various types of valves, such as valves, butterfly valves, ball valves and cut-off valves, are always unable to distinguish between applicable scenarios, and the selection of the wrong model not only increases costs, but also leads to safety hazards such as leakage and congestion。
Today, in plain and understandable language, the core knowledge of the commonly used valves will be spelled out
1. Valves: the main is completely closed, the fluid resistance is small, suitable for clean media such as large calibre, water purification and steam, and is widely used for municipal water supply, thermal pipe network, and is sealed but not suitable for frequent regulation。
2. Flutter valves: a compact structure, fast-opening speed, high value for money, first choice for large-calibre scenes, heating, sewage, gas transport and a zero leakage rate of over 99 per cent for soft-sealed butterfly valves are the main choice for municipal works。
3. Ball valves: sealing performance at the top, opening instantaneous completion, highly corrosive, suitable for harsh conditions such as chemicals, oil, food and medicine, in particular impurity, corrosive media and durability。
4. Selected core elements: first, medium (liquid/gas/slurry), temperature, pressure, caliber, sealed material, driving mode (manual/electric/gas), final recognition of national marking and plant qualification。
It was also cautioned that the procurement valves should not be priced only, that material thickness, sealing grade, release life, quality assurance services were essential, and that quality valves could significantly reduce the cost of late transportation and avoid back-to-work。
This is a collection, next selection is a direct comparison, you can comment on the area and answer the selection question free of charge
