The KNOLL centrifugal pump converts the energy of a motor or turbine into velocity or kinetic energy, which is then converted into pressure energy of the fluid being pumped. The energy change occurs around the two main parts of the pump, the impeller and the volute or diffuser. The impeller of the pump is a rotating part that converts the driving energy into kinetic energy. The volute or diffuser is a fixed component that converts kinetic energy into pressure energy. Depending on the application, the pump driver can be an electric motor or a steam turbine.

Precautions for inspection of KNOLL centrifugal pump before starting:

• Do not run centrifugal pumps below minimum rated flow or with suction or discharge valves closed. These conditions can quickly lead to centrifugal pump failure and personal injury.

• Be sure to disconnect and lock the driver's power supply before performing any installation or maintenance tasks.

• Reverse starting of centrifugal pump can cause metal component contact, heat and containment rupture.

• Thoroughly flush and clean the system to remove dirt or debris from the ductwork to prevent pump failure during initial start-up.

• Adjust the variable speed drive (if installed) to its rated speed as soon as possible.

• Typically, if the temperature of the pumped fluid will exceed 200°F (93°C), pre-heat pump before the pump starts.

Circulate a small amount of fluid through the pump until the casing temperature is within 100°F (38°C) of the fluid temperature before the pump starts to avoid thermal shock to the bushing and impeller and prevent mechanical seal damage.

KNOLL centrifugal pump starting steps:

• Open suction valve.

• Open any recirculation or cooling lines.

• Completely close or partially open the discharge valve depending on system conditions.

• Start the driver.

• Slowly open the drain valve until the pump reaches the desired flow rate.

• Check the pressure gauge to ensure that the pump quickly reaches the correct discharge pressure.

The above content describes how to start the KNOLL centrifugal pump, and what needs to be checked before the KNOLL pump starts. In addition, Shenzhen Oudejie Technology specializes in selling new original German imported KNOLL centrifugal pumps, and promises to sell products are new original imported, while providing our customers with quotation, selection, product information and other services.