Quelle est la différence entre les vannes papillon DN25 et DN100?

Nov 18, 2024 | Nouvelles

When comparing vanne papillon haute performance (DN25) et vanne papillon à étanchéité souple (DN100), chacun a ses caractéristiques et applications uniques. Comprendre leurs différences permet de sélectionner la bonne option pour des besoins spécifiques. Voici les principaux aspects:

What Are DN Stand For?

Please use the table below for your reference about GGG50 butterfly valve sizes, and if you have any other questions, please ask the Just Valves team.

Nominal Pipe Size (pouces)Diameter Nominal DN (mm)
¾”DN20
1DN25
1¼”DN32
1½”DN40
2DN50
2½”DN65
3DN80
4DN100

Structural Design

  • DN25 Butterfly Valve: The high performance butterfly valve uses a double eccentric design. Its disc is offset from the valve seat center, reducing wear during operation. This innovative structure provides better sealing under high-pressure conditions.
  • DN100 Butterfly Valve: The soft sealing butterfly valve also features a double eccentric structure but uses a flexible sealing seat. This ensures tight sealing, especially in low-pressure systems.

Material Composition

  • DN25 Valve: Typically made from durable materials like stainless steel or carbon steel. These materials withstand higher pressures and temperatures, making it suitable for industries like HVAC and ethanol processing.
  • DN100 Valve: Often made from ductile iron with an anti-corrosion coating. Its soft sealing seat, usually made of rubber or PTFE, ensures leak-free performance in water supply systems.
vanne papillon haute performance
vanne papillon à étanchéité souple

Application Range

  • Vanne papillon haute performance (DN25): Ideal for applications with high pressure and temperature, such as industrial pipelines or chemical plants. Its robust design and precision engineering ensure reliability.
  • Vanne papillon à étanchéité souple (DN100): Commonly used in municipal water supply, traitement des eaux usées, and low-pressure fluid systems. Its softer seal makes it perfect for preventing leaks in less demanding environments.

Size and Flow Control

  • DN25 Butterfly Valve: Smaller size ensures compact installation. Its design prioritizes high-pressure flow control with minimal maintenance needs.
  • DN100 Butterfly Valve: Designed for larger pipelines, the soft sealing butterfly valve provides efficient flow isolation and control in medium-pressure systems.

Choose the Right Supplier

Within the DN25-DN3600 butterfly valve range, both high-performance and soft-sealing butterfly valves serve distinct purposes. The right valve depends on pressure requirements, fluid type, et candidature. Choosing the right size ensures efficient and reliable operation in various industrial and municipal systems.

For more information, don’t hesitate to contact us at +86 18722007022 ou[email protected].