Type：Link straight board shut-off butterfly valve
 Application：Used in hot blast stove and gas pipeline network
 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：≤600℃
 Sealing Type：Soft rubber seal（silicon rubber）（≤280℃); Hard metal seal（hard alloy）
 Characteristics：It is a new substitute for hot blast stove valves and features in protect the interface, perfect sealing performance and smart on/off operation.
 Operating Medium：Air and coal gas
 Size：DN200~DN3200
 Working Pressure：≤0.4MPa
 Operation：Worm wheel, electric, hydraulic and pneumatic
 Model：YD□40Y/X-2.5