The metal-to-metal part interface in the pump can cause many pump problems. Metal parts can get stuck or wear out, so a large operating clearance is usually required. In contrast, non-metallic composite components do not wear out or get stuck and can be installed with greatly reduced clearance.

1, pump dry rotation

When the centrifugal pump is running, the dry metal wear parts in the pump can get stuck and cause serious damage to the pump.

2. The pump is stuck

Pump jams can occur for a variety of reasons, including off-design conditions, foreign matter entering the pump, or low flow operation. Metal parts in the pump often exacerbate seizures, leading to severe pump damage.

3. Alignment wear

Horizontal multistage centrifugal pumps are usually prone to wear during alignment. These pumps rely on wear rings to generate liquid pressure, which "lifts" the rotor once the pump is running at full speed. Composite wear rings fundamentally eliminate this risk by eliminating metal-to-metal contact points in the pump.

4, pump cavitation

Pump cavitation solutions are often expensive or difficult to implement, such as complete redesign of the suction system, hydraulic resetting of the pump, or complete replacement of the pump. By upgrading the wear ring to composite, you can significantly reduce the wear ring gap to 50% of the minimum API610 and reduce the NPSHR of the pump. In applications where you are on the verge of cavitation, this simple upgrade can save you a lot of money and hassle.

5. Start suction problem

Reduced suction when the pump starts is directly related to pump cavitation and causes a number of problems, including idling or premature wear of components. Due to the reduction of NPSHR and dry operation in low vapor pressure fluids, the use of composite wear parts in the pump significantly improves the pump's ability to achieve suction at start-up.

6, mechanical seal failure

Some pump designs contain elongated shafts that may be deflected during operation. This causes the mechanical seal to be subjected to excessive stress, which can lead to premature seal failure.

7, pump vibration

Increased vibration levels in the pump over a long period of time can lead to serious pump damage.

8, pump efficiency is poor

The pump wear ring acts as a seal between the high-pressure and low-pressure areas of the pump.

9, wear ring and shaft bushing gap is too large

Centrifugal pumps using bronze or cast iron materials made of wear rings or shaft bushings provide greater bite resistance than stainless steel. However, they have a very high wear rate, and your pump may lose performance relatively quickly after an overhaul. Using composite wear parts in your pumps reduces wear rates due to the very low coefficient of friction and excellent wear characteristics.

The above content describes the useKNOLLKono centrifugal pumpWhat are the main advantages? The problem. In addition, Shenzhen Oudejie Technology specializes in selling new imported KNOLL centrifugal pumps, and promises to sell products are new imported products, while providing our customers with quotation, selection, product information and other services.