Stop Valves are closed by screwing a rubber gasket down onto a seat in the middle of the valve. Pros only use small versions that act as shutoff Valves for fixtures such as sinks and toilets and outdoor sillcocks. Flow is inefficient because of the circuitous route the fluid (water, in most cases) has to follow. It's important to orient the valve in the right direction with the arrow (cast into the side of the valve) aligned with flow direction. That way, water flows against the bottom of the rubber gasket. If the valve is put in backward, the flow will force the gasket away from the top of the valve. Stop Valves Stop Valves, Shower Stop Valve, Water Stop Valves, Brass Stop Valve ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalve.com
Alkali fluoroplastic dedicated shut-off valve is fully padded closure means (flap) driven by the lifting movement of the valve stem and made along the central axis of the valve seat, in the pipeline is mainly used to turn on or cut off the line of medium, is generally not Use to adjust.