best centrifugal pump companies that could support stainless steel 304-316-316L material and outdoor water supply in 40mm in 5.5 or 7.5HP

In response to the outdoor usage requirements of customers, China ATACH Pump Company has developed an outdoor-specific motor. It is equipped with protection rating IP55 and insulation class F. It can support single-phase operation as well as three-phase operation.

For the operating conditions with low flow rate and low head, ATACH has a dedicated series of pumps that can be applied.

This type of pump usually has the advantages of low noise, high efficiency, small purchase order quantity and light weight. It is specially suitable for applications involving non-heavy chemical media. For instance, the WB and WB2 series of miniature stainless steel centrifugal pumps. 

Let's take the WB2-120/260-P model as an example to illustrate. 

This pump has two impellers and is often referred to as a double-impeller stainless steel pump or a double-impeller centrifugal pump. 

Power: 2.6KW/3.5HP 

Standard voltage: 3-phase - 380V - 50Hz

Suction depth: 8m

Flow rate: 2.4 - 9.6 m3/h

Head: 59 - 42m

Inlet and outlet: 32*25mm/BSP connection or tri-clamp connection.

The materials available are SS304 and SS316L.

If you have any interest or questions regarding the above pump models of the professional industrial pump factory - ATACH, please feel free to contact our sales staff.