Sign in | Join Now | Sitemap Inquiry Basket(0)
logo
Home > News
Quick Connect Coupling

Hydraulic Check Valve

Pneumatic Couplings

Air Quick Coupling

Kora valve works [2011-12-26]

Also known as Hydraulic Check Valve, pump and reservoir used for the middle, two kinds of discrete and cross when the water pump working pressure to open the valve into the reservoir or storage tank, when the water reaches a certain level or pressure when the pump stopped and the water to turn the clock back, upstream of the water under pressure to push just off the valve plate.
Check valve is to rely on the media itself flows automatically open and close the valve, backflow valve to prevent the media, also known as check valve, check valve, reflux valve, and back pressure valve. Check Valve is an automatic valve, and its main role is to prevent the media back to prevent the pump and drive motor reversal, and the container medium discharge. Check valve can also be used to the pressure which may exceed the system pressure rose to auxiliary system supply pipeline. Check valve can be divided into swing check valve (center of gravity by rotation) and lift check valve (along the axis of movement).
The role of check valve only allows media to flow in one direction and prevent movement of the opposite direction. Normally this valve works automatically, in a direction of fluid flow under pressure, the valve opens; the opposite direction of fluid flow, fluid pressure and valve from the self-overlap effect on the valve seat, thereby cutting off flow.
Ball-type check valve, the ball is rolling with rubber valve foreskin, the role of the media, it can slide in a monolithic body up and down on the scroll, which open or close the valve, seal performance, style muffler off , does not produce water hammer. body-wide water channel, flow, resistance, tap a small loss than the 50% swing, can be installed horizontally or vertically, can be used for cold water, hot water, industrial and sewage pipe network, more suitable for submersible sewage pumps, medium temperature 0 ~ 80 ℃.
Slow closing check valve normally closed hydraulic relief, that is, non-return valve stem with a hydraulic cylinder, hydraulic oil by controlling the flow path to control the valve closing speed is mainly used for large diameter water system, prevent water hammer generated.
Lift check valve structure generally similar to the valve in a line along the channel for the lifting movement, and reliability, but the fluid resistance is large, small in diameter for the occasion. Lift check valves can be straight-through and vertical two. Straight-lift valve generally only be installed in horizontal piping, and vertical lift check valves are generally installed in vertical piping.