Advantages and Disadvantages of Gate Valves

Gate valves have fewer components (typically including only the valve body, gate, stem, seals, and drive mechanism) and lack complex flow channel structures, resulting in lower failure rates compared to globe or ball valves of the same specification. Taking the DN100 manual gate valve as an example, its maintenance cycle can reach 5 years, requiring only periodic inspection of seal wear and lubricant replacement, with a single maintenance cost of approximately 200-500 yuan, significantly lower than the cost of replacing a ball valve's sealing ring (around 800-1500 yuan).

3、 Application scenarios and selection suggestions
Recommended usage scenarios

Large caliber, long-distance transmission pipelines (such as urban water supply and oil and gas long-distance pipelines);
In situations where bidirectional sealing is required (such as fire protection systems, circulating water pipelines);
Systems where the medium is a clean liquid or gas and is sensitive to pressure loss, such as thermal pipelines.
Scenarios that require careful use

In situations where rapid opening and closing is required (such as chemical emergency shut-off valves);
Pipeline systems with limited spatial height (such as underground pipe galleries and ship pipelines);
Media containing a large amount of particles or fibers (such as wastewater, paper pulp).