Product description 

　　The gate is simple in structure, flexible in operation, light in weight, free from jamming and fast in cutting The opening can be adjusted at any time. It is mainly composed of pivot frame, gate, screw rod, nut and other parts. Turn the handwheel by hand to make the screw rod with screw nut and gate move back and forth in the horizontal direction to achieve the purpose of opening and closing the gate.

Ｗorking condition

　　Manual spiral gates are used for the top, bottom and import and export of warehouses in the industries of building materials, metallurgy, mining, electric power, chemical industry, glass, light industry, and grain. It is an ideal device for controlling the flow rate change greatly and starting frequently and cutting off quickly.

Specifications:

　　Nominal diameter DN(mm): 100 x 100-1000 x 1000

　　Nominal pressure: 0. 1mpa

　　Universal medium: glume

　　Operating temperature: -10~+200