60hz blow through rotary airlock valve

{"cid":"91222458","title":"Blow through and quick cleaning stainless steel rotary airlock valve","imgUrl":"https:\/\/img.chinax.com\/nimg\/45\/8d\/ba5eb19f4eefd525e20dc57c39ae-200x200-1.jpg","attrs":{"Price":"Chat Now","Brand Name":"TECLION","Model Number":"RDBC 250","Minimum Order Quantity":"1","Delivery Time":"30 workking days","Certification":"CE,ATEX","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"One set per 30 working days","Packaging Details":"Plywood case","Name":"Rotary airlock valve","Inlet size":"DN250","Material":"304 stainless steel or Carbon steel","Rotor volume":"20L","Valve Height":"470","Valve structure":"Blow through","Valve driving":"Chain driving"}}

{"cid":"91220044","title":"4L rotary airlock valve engineered for operation in pneumatic conveying and dust collection systems operating at 50 60Hz frequency","imgUrl":"https:\/\/img.chinax.com\/nimg\/b2\/cb\/0958a2e3980c4282167a03393668-200x200-1.jpg","attrs":{"Brand Name":"ChangHong XiangLong","Dimension":"According To Specific Models","Portsize":"50mm To 300mm","Frequency":"50\/60Hz","Size":"DN50-DN700","Special Design":"Available","Work Pressure":"Original","Volume":"4L","Drive":"Chain"}}