1. The vane is in the form of "Y" with the compact design and tight gas.
2. The end face of the vane is applied with the imported slab rubber so that it is zero clearance with the enclosure and fully antisticking and antiblocking.
3. The bearing is outlayed to resist dusts. It is convenient to be manitained. 使用范围和性能特点：
FDFY系列防堵关风器广泛使用于粮食、饲料、食品加工厂及化工、医药、烟草、冶金、水泥等部门。对于在正压、负压状态下的粉粒状、片状及纤维物料起着连续排卸和密气的作用，是通风除尘和气力输送风网中的重要设备。 Application Scope and Performance Characteristics:
FDFY series anti-blocking airlock is widely applied to large, small and medium-sized food and feedprocessing factories, chemical, medicine, tobacco, metallurgy and cement industries. It can continuously discharge the powdery, granular, flaky and fiber materials with its good airtightness function under positive pressure and negative pressure. It is an important equipment in the exhaust system of ventilation, dust removal, pneumatic conveying. 关风器性能及参数表（Permance And Paramenters of Airlocks)：
技术参数表（Technical Parameter Table)：
产品结构图（Diagram of Products Strcture):
R-物料容量（吨/米3）K-修正系数，一般取0.7~0.8 Material Discharging Amount of Airlock Is Calculated According to the Following Formula:
V-volume of airlock(l/r) N-Rotating speed of airlock(r/min)
Y-volumetric efficiency of airlock:grain material r-0.8;powder material=0.5~0.6
R-Matirial capacity (t/m3) K-Reduction coefficient, generally0.7~0.8
Our company customize the airlocks with diffrent materials, specifications, types and particular configurations according to customers'requirements