气动密闭式螺旋闸门主要技术参数和性能：

公称通径：200×200、....、1000×1000

适用温度：-10~+200℃

连接法兰：GB/T9113、JB/T79

主体材料：WCB、Q235A、304、316、304L、316L

密封型式：硬密封、软密封配套附件：

1、安装法兰

2、电磁阀

3、空气过滤器

4、行程开关气源压力：0.4~0.6MPa 电磁阀电压：DC24V、AC220V 行程开关控制电压：DC24V、AC220V

气动密闭式螺旋闸门用于建材、冶金、矿山、电力、化工、玻璃、轻工、粮食等行业的库顶、库底及进出口等。是控制流量变化较大，启动频繁，切断迅速的理想设备。

This valve is widely used at the   top bottom of store house carry port in bllurgical, mining, building material, food, chemical industries etc. It is the ideal equipment to control a great changing flow, to open close frequently to stop quickly.

气动密闭式螺旋闸门结构特点：

Structureacteristic:

结构简单、操作灵活、重量轻、无卡阻、切断快，特别适用于各类无粘度的固体、粉料及小于 Φ 10mm 的颗粒料，晶粒料的输送及流量调节，安装不受角度限制， 操作方便， 能随时调节开度。该阀门有手轮和链轮操纵两种操作形式， I 型为手轮， II 为链轮。单向和双向两种结构形式， LZD 为单向、 LZS 为双向。

This valve is simple in structure, handy to operate, light in weight, non-obstructive quick to stop. It is suitable to be used to carry all kinds of solid material, particle crystal particle whose diameter is below 10mm to adjust the flow. It can be installed at any angle operated handily. The size of its gate can be regulated at any time. This valve has two type of operation. One is manual wheel operation; the other is chain wheel operation. Ⅰ means manual wheel. Ⅱ means chain wheel. The valve has two type of construction LZD is signal direction LZS is double direction.

气动密闭式螺旋闸门工作原理 ：

Working principle

主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。

It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nut gate board move in horizontal to fro to open close the valve.

气动密闭式螺旋闸门主要零件材料及连接尺寸