Type: Lock and seal tightly by the wedge-style disc
 Application：Used in hot blast stove
 Usage：It plays the role of cutting off the medium in the pipeline of hot blast stove and can be used as gas combustion valve, air burning shut off valve，purified gas shut off valve, cold blast valve and chimney valve.
 Working Temperature：≤500℃
 Operating Medium：Air, coal gas, exhaust gas and smoke, etc.
 Sealing Type：Hard seal (hard alloy)
 Operation：Electric(hand) hoist, electric and hydraulic
 Working Pressure：≤0.4MPa
 Size and Model：DN400~DN2000 YZ41Y-4
 BF Capacity：179m³~5000m³