New Application Solution: Knife Gate Valves for Carbon Black Processing

New Application Solution: Knife Gate Valves for Carbon Black Processing

Posted April 8, 2026

Carbon black production presents some of the most demanding valve challenges in industrial processing. Fine, abrasive, and easily airborne material can accelerate wear, compromise sealing, and drive unplanned maintenance across conveying and handling systems. To address these challenges, DeZURIK has released a new Application Solution Bulletin: Knife Gate Valve Solutions for Carbon Black Processing.

The Challenge

Produced primarily through the furnace black process, carbon black must be cooled, collected, pelletized, and conveyed while maintaining tight process control. Throughout these stages—from gas-solid separation to pelletization—valves are exposed to continuous abrasion, high temperatures, and risk of material buildup that can lead to leakage and downtime.

The DeZURIK Solution

DeZURIK Knife Gate Valves are engineered specifically for carbon black service, delivering reliable isolation and long-term durability in pneumatic and slurry applications. Robust construction and wear-resistant components help withstand erosive media, while scraper ring packing systems keep the gate clear and minimize emissions.

Key design features include:

  • Abrasion-resistant gates and heavy-duty wear components
  • Debris-clearing scraper ring packing systems
  • Resilient or metal seated options for tight shutoff
  • Standard designs rated up to 450°F (233°C), with custom fabricated options up to 1000°F (540°C)
  • Optional flush ports to reduce buildup and promote consistent operation

Proven Performance Throughout the Process

Knife gate valves are used at bag filter hoppers, transfer chutes, surge bins, rotary airlocks, and pelletizer feed points—providing positive shutoff, safer maintenance isolation, and clean shearing of fine carbon black material. The result is improved containment, reduced maintenance requirements, and extended service life across critical carbon black handling systems.

Learn More

Download Application Solution 237: Knife Gate Valve Solutions for Carbon Black Processing to explore application challenges, valve design considerations, and performance benefits in greater detail.