Application site of polyurethane knife gate valve

Polyurethane knife gate valves are widely used in various industrial fields due to their excellent wear resistance, corrosion resistance, and sealing performance. The following are its typical application scenarios and characteristics:
Mining and Metallurgical Industry
Used for processing high wear media such as iron ore, copper mine tailings, coal slurry, etc., the knife type gate can effectively shear solid particles and prevent blockage.
Typical scenarios: mine slag discharge system, mineral processing plant slurry conveying pipeline.
Wastewater Treatment and Environmental Protection Engineering
Suitable for controlling sludge, wastewater, and media containing suspended solids, the full bore design reduces fluid resistance, and the zero leakage characteristic meets environmental requirements.
Typical scenarios: urban sewage treatment plants, industrial wastewater treatment systems.
Paper and food industry
Used for pulp conveying in paper mills, the food industry relies on its sanitary grade stainless steel material (such as 316L) to ensure the purity of the medium.
Typical scenarios: pulp pipelines, food processing production lines.
Electric Power and Chemical Industry
Used for cutting off power plant ash removal systems and chemical corrosive media (such as acidic and alkaline slurries), polyurethane lining can withstand temperatures ranging from -29 ℃ to 200 ℃.
Typical scenarios: Coal fired power plant ash treatment, petrochemical pipeline slag discharge.
Other applications
Sugar industry: Processing high viscosity media such as syrup to prevent crystallization blockage.
Flue gas desulfurization: The wear-resistant properties are suitable for desulfurization slurries with high solid content.
Selection suggestion:
Priority should be given to fully lined polyurethane valve liners (such as PZ673N-10C model) for high wear conditions;
Hygiene grade requirements must comply with FDA standards, and 316L stainless steel material is recommended;
It is recommended to configure pneumatic actuators (such as PZ673PU series) for frequent opening and closing scenarios.