304 Stainless steel manual knife gate valve for slurry service

04-09-2026

The 304 stainless steel manual knife gate valve is a core dedicated control valve for mine slurry transportation pipelines. Rated at 1.6MPa nominal pressure, it is available in DN100, DN300 and DN350 standard sizes, suitable for working conditions with medium temperature ≤ 100℃. Developed specifically for mining slurry with solid particles and strong scouring characteristics, this valve solves common industrial pain points of traditional valves such as frequent jamming, severe abrasion and sealing failure. With stable and reliable performance, it has become a preferred fluid control device for global mine mineral processing and tailings transportation projects, perfectly adapting to harsh mining operating environments.

manual knife gate valve

This valve features professional material and structural design tailored for slurry service. The integral 304 stainless steel valve body provides outstanding corrosion resistance and anti-scouring performance, effectively resisting erosion and damage caused by mineral impurities in slurry, and avoiding rust and perforation problems of ordinary valves. The thin and sharp blade structure can smoothly cut off solid residues and fibrous impurities in the medium, ensuring unobstructed opening and closing without material jamming. Adopting pure manual handwheel drive, it requires no electric motors, air sources or other auxiliary power equipment. The simple and reliable on-site operation will not be affected by power outages or air supply failures, ensuring stable pipeline operation all year round.

knife gate valve

It boasts superior sealing performance and flexible installation adaptability. Equipped with a self-cleaning sealing structure, the valve can automatically scrape off slurry deposits and mineral residues on the sealing surface during opening and closing cycles, maintaining a clean sealing surface and long-term tight sealing performance to prevent medium leakage. The standard flanged connection enables simple and efficient installation, disassembly and maintenance, which is suitable for narrow and complex pipeline layouts in underground mines, open-pit mines and pump rooms. With a 1.6MPa pressure rating, it fully meets the pressure bearing requirements of medium and low-pressure pipelines for mine slurry transportation and tailings discharge.

manual knife gate valve

In practical application, this series of knife gate valves effectively reduces operating costs and improves efficiency for mining enterprises. The compact valve body occupies minimal pipeline space, perfectly fitting new mining projects and old pipeline renovation projects. The manual drive structure greatly reduces equipment procurement and maintenance costs with no complex electronic control system required. Its ultra-low failure rate effectively cuts down maintenance frequency and production shutdown losses. Covering DN100, DN300 and DN350 multiple specifications, the valve matches slurry pipelines with different flow rates. It supports bulk customization and mass supply with stable delivery to meet the procurement demands of global mining projects.

knife gate valve

All 304 stainless steel manual knife gate valves are manufactured in strict accordance with international industrial standards. Every single valve undergoes rigorous hydrostatic testing, sealing inspection and performance verification before delivery to ensure stable and reliable quality. As a cost-effective dedicated shut-off valve for slurry conditions, it is widely applied in ore sorting, slurry transportation and tailings treatment within 100℃ medium temperature. We provide standardized products, customized selection services and complete pipeline fluid control solutions for global B-end mining engineering enterprises, serving as an ideal upgraded alternative to traditional valves for slurry working conditions.

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