Fluorine-lined Diaphragm Valves And Lined Diaphragm Valves Installation Instructions

Lined Diaphragm Valve, Lined diaphragm valve installation instructions

I. Application and performance specifications
This valve is designed and manufactured in accordance with the provisions of GB/T12239, and is suitable for strong acid and alkali media at temperatures of -20℃～180℃. It is used as an opening and closing device in the pipeline system, and can ensure good sealing performance under working pressure.
Performance specifications
Nominal pressure PN 1.0Mpa
Nominal diameter DN 15～200
Test pressure Strength test 1.5Mpa
Seal test 1.1Mpa
Air seal test 0.6Mpa
Applicable temperature -20℃～180℃
Applicable media Strong acid and alkali

II. Main structure and working principle
This valve is a weir structure, and the valve body is lined with fluoroplastics. It has a simple structure, good sealing performance, and is safe and reliable to use.
Its action and sealing principle:
Turn the handwheel, the handwheel drives the valve stem nut, clockwise rotation is closed, counterclockwise rotation is open. The valve stem nut drives the valve stem, which is connected with the steel valve disc, rubber gasket and fluoroplastic diaphragm, and separates the inner cavity of the valve body from the inner cavity of the valve cover to achieve the purpose of cutting off and connecting the medium. The diaphragm in contact with the medium is made of fluoroplastic, and the inner lining is made of flexible and elastic rubber, which not only improves the sealing performance, but also prolongs the service life of the fluoroplastic diaphragm.