Wahl’s Hybrid Precast Thimble Exhibits Minimal Wear After Two Years in Stage IV Cyclone. Wahl Refractory Solutions’ Hybrid Precast Thimbles have demonstrated superior performance for use in multi-stage preheaters. The Thimble’s wear-resistant qualities were made evident during an inspection of an installation after two years in service. Figure 1 shows a view of the thimble […]
