Sky H71-type lift check valve connected to the clip 
 http://www.tianyuv.com/products_view.asp?id=25 
 Features: 
 Second, the hydrodynamic performance: H71 wafer lift check valve flow rate and pressure drop relationship: 
 Vw equivalent volume flow of water and the actual volume of fluid flow v press type conversion: 

 Where: Vw an equivalent volume of water flow. l / s; P a fluid density, kg/m3v an actual volume of fluid flow, I / s; v an actual volume of fluid flow, I / s. 
 Series: Wafer Check Valve Series http://www.tianyuv.com/products.asp?clsid=496 
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