Slurry Open Flexible Centrifugal Cast Iron Water Pump Impeller/blower Impeller

        open flexible centrifugal cast iron water pump impeller/blower impeller

1. Open impeller 

As its name suggests, an open impeller has vanes that are open on both sides without any protective shroud. As they don’t have any support either side they tend to be weaker, and therefore are typically used in smaller, inexpensive pumps that aren’t operated under significant strain. Whilst they are able to handle a degree of solid content unlike closed impellers, they require a higher NPSH to operate without cavitation, damage and loss of efficiency.

2. Semi-open impeller

Semi-open impellers have a back-wall shroud that adds mechanical strength to the vanes, whilst remaining open on the other side. They are somewhat of a middle ground between open and closed impellers in terms of efficiency and NPSHr, making them suited to medium sized pumps with a small amount of soft solids. It’s important to note with semi-open impellers that the clearance between the vanes and the pump casing needs to be small, as if too large slippage and recirculation will occur.

3. Closed impeller 

Now you’ve read about the open and semi-open impellers, you can probably guess that a closed impeller has enclosed at the back and front, providing maximum strength. They have a low NPSH required and provide a more efficient flow. However they are a more complicated, expensive design due to their reliance on close-clearance wear rings to reduce axial loads and help maintain efficiency. They are the most popular impeller for large pumps transferring clean liquid as they are prone to clogging when in contact with solids.

weight 1-300kg
diameter 100-500mm
painting OEM1. PRODUCT SPECIFICATIONS

2. INFORMATION ABOUT US

3. WHY CHOOSE US?

•  Good in quality and price in moderate  •  Strict quality control system  •  ISO9001:2008 certification

•  OEM/ODM service offered  •  Small order accepted

•  If there is any thing I can do for you, please don't hesitate to contact with me. I will be always at your servie.

Dalian ruici industrial co. LTD
Founded in 2005, the company was founded in 1984.Is a specialized in metal products manufacturing enterprises.It mainly produces the OED and ODM products according to customer's requirements.
 We mainly engaged in steel, stainless steel, copper, aluminum and zinc alloy products casting, forging, stamping and machining.Application fields include: petrochemical, engineering, Marine industry castings: such as impeller, pump, valve, floor drain, flange;Transmission machinery parts;Kitchen and food industry castings;Auto parts;Agricultural machinery parts, etc.