一种耐用型抽汽止回阀门

Durable steam extraction check valve

Abstract

The utility model discloses a durable steam extraction check valve. A shaft sleeve is installed between a valve shaft and a valve body, a shaft neck and a semi-circle ring matched with the shaft neck are installed at a pressing cover end of the valve shaft, a first spherical washer is arranged between a valve clack arm and a valve clack, and a second spherical washer is arranged between the valve clack arm and a flat washer. By means of the structure, abrasion to the valve body can be avoided through the shaft sleeve, the semi-circle ring is utilized to achieve axial positioning of the valve shaft to prevent blocking of the valve shaft, the first spherical washer and the second spherical washer are utilized to prevent blocking of the valve clack, and the sealing effect can be ensured accordingly. The durable steam extraction check valve is high in durability and long in service life.
本实用新型公开了一种耐用型抽汽止回阀门,该阀门在阀轴与阀体之间安装有轴套,在阀轴的压盖端设置有轴颈并安装有与轴颈配合的半圆环,在阀瓣臂与阀瓣之间设置有球面垫片一,在阀瓣臂与平垫片之间设置有球面垫片二,采用这样的结构后,可通过轴套来防止对阀体的磨损,通过半圆环来实现对阀轴的轴向定位防止阀轴卡死,通过球面垫片一和球面垫片二来防止阀瓣的卡死,从而保证密封效果。本实用新型一种耐用型抽汽止回阀门,耐用型高,使用寿命长。

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