Water pump / Water ejector V2 / eductor / venturi

Description

This Is The 3D Printed Water Driven Eductor. If You Need Capacity Ratio 0.8 : 1 (0.8 Part Of Driven Water To 1 Part Of Sucted Water) - Reduce Nozzle Diameter To 1 Mm. But Same Way You Will Reduce Pumping Capacity. If You Need So - Post Comment And I Will Add Corrected Stl Model Or Print Out Current And Insert Into The Nozzle Small Piece Of Pvc Or Ptfe Pipe Outer Dia 3 Mm, Inner 1-1.5 Mm. Important: Need To Create Delivery Head Backpressure / Backflow If You Are Using Water To Drive It, I.E.: 1) Connect Hose 20-30 Cm To Delivery End, Or 2) Close 75-80% Delivery End (By Finger, Plug, Etc), Or 3) Insert Any Screen Or Partition Inside Delivery End 1 Cm In Deep, Or 4) Put Eductor Delivery End Into The Water At Least 2 Cm In Deep (Sometimes Just Touch Water Surface). Venturi V1 (Black On Picture, Stl File Name "Venturi"): Just Testing Model, But It Also Works. Venturi V2 (Yellow On Picture, Stl File Name "Venturi V2"): Upgraded Model With Better Characteristics: Suction Ratio: 1.5:1 (1.5 Parts Of Driven Water Required For 1 Part Of Sucted Water) Suction Capacity: 200 Ltrs/Hr @ Driven Water Pressure Abt 2.0 Bars From 0.5 M Suction Head. Maximum Suction Head: 10 Mtrs Of Water @ 1.8 Bars Of Driven Water Pressure Bonus: To Test It In Your Shower Room You Can Find "Shower Reducer" Stl File - Just Connect It Instead Of Shower Head To Shower Flexible Hose + Use 10 Cm Of Garden Hose For Eductor Connection (Find Picture For Reference). Printing: Pla Was Used For Printing, Rotate Stl Model Vertically, Delivery End To Top. For V1 Add Support (Touching Bedplate Only) - It'S For Suction Pipe. For V2 No Need Any Supports - Print Vertically, Delivery End To Top. Layer Height 0.2 Mm, Nozzle 0.4 Mm, 100% Fill Density. Shower Reducer To Be Printed Vertically, Thread To Top - For Better Results, Layer Height 0.2 Mm, 100% Density. With 100% Fill Density, Fillament Consumption 30 Grams (9.7 Mtrs Of 1.75 Mm). Driven Water Inlet Fit For Garden Hose.

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