Butterfly Valve Article
  1. Home
  2. Blog
  3. Butterfly Valve Article

Dry material particles are not suitable for butterfly valve reasons

188 views Source: VALTEC China Valve Manufacture CO.,LTD

Butterfly valves are not recommended when handling dry material particles in pipelines. This article introduces 4 reasons:

Schematic Diagram of Butterfly Valve Piping Media
  • Butterfly valves are not designed to handle dry bulk granular solids. They are designed for gas and liquid applications. The abrasive nature of dry bulk particulate solids erodes away on butterfly valves to the point that they no longer seal properly and require replacement.
  • In pneumatic conveying and gravity applications, the butterfly valve design places the disc in the middle of the material flow. This creates a significant flow restriction, and many engineers design entire delivery systems with larger piping to accommodate this blockage in the valve.
Butterfly disk is in material flow stream
Butterfly disk is in material flow stream
Material packs between seal and wall
Material packs between seal and wall
  • The soft seal of the butterfly valve can cause another problem. When in the closed position, the soft seal allows the disc or vane to create an airtight seal. Due to the nature of dry solids, materials cannot be displaced like gases or liquids. Over time, the constant opening and closing can cause the seal to corrode and tear. Ultimately, this will prevent the butterfly valve from forming a tight seal.
Valve leaks due to the eroded sea
  • Seals on butterfly valves are also susceptible to impact wear from material flow. This is not a problem when dealing with gases and liquids. But with dry bulk solids, this can lead to additional wear points and eventual leakage of material and/or conveying pressure through the valve even when the valve is in the closed position. In powder handling applications, particles tend to migrate through the stem of a butterfly valve, causing the valve to stick.
Soft seal exposed to material

Selecting the correct valve will ensure proper overall operation. The conditions the valve will encounter determine which type of butterfly valve is required.

Taking a moment to consult with VALTECCN VALVE for suggested butterfly valves that can help improve valve performance can save a lot of money down the road.

Learn More:

REALTED POSTS

Professional CE Approved Wafer Type Butterfly Valve Supplier and Manufacturer

Signal Butterfly Valve: Different From Ordinary Valve Introduction and Recommendation

Butterfly Valve VS Gate Valve Difference Comparison

Butterfly Valve with Vulcanized Rubber Lined: Why Choose It, What Are Its Advantages?

Difference Between Ductile Iron Disc and Stainless Steel Disc of Butterfly Valve

Butterfly Valve Pressure Test

REALTED CASES

VALTECCN Butterfly Valve Sales to Russia for Business

European Customer Feedback on Bronze Butterfly Valve

Mexico Customer Purchased Butterfly Valves From VALTECCN Again

EPDM Seat butterfly valve PN16 Sold to Dubai

REQUEST A QUOTE
Contact Information

For inquiries about valve products or pricelist, please leave your email to us and we will be in touch within 24 hours.
We would like to serve you in the best possible way.

Fill in the error, please re-fill and submit!

  • E-mail address entered is invalid.