DN50 PN16 nerūdijantis plienas vaflis minkštas sandariklis drugelis vožtuvas

Drugelis vožtuvas struktūra principas
Butterfly valve (also known as flap valve) is a regulating valve with a circular valve disc or disc as the closing part. It is mainly composed of a valve body, a valve stem, a butterfly plate and a sealing ring. The valve body is cylindrical, with short axial length and built-in butterfly plate. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0 degree and 90 degree . When it rotates to 90 degree , the valve is fully open.