01. How does one mount a float switch?

The float switch cable is to be attached to the discharge pipe in such a way that the remaining free cable length ensures a sufficient flow volume. The pit size should also be taken into account. In addition, it must be ensured that the depth of the pit is sufficient for the switch-on/switch-off spacing of the float pit and that the spacing between the pit bottom and the inlet is at least 60 cm.

02. What is cavitation?

Cavitation is the formation and abrupt collapse of vapour-filled bubbles. This process takes place at points inside the pump where the pressure falls below the vapour pressure of the pumped medium. The vapour pressure of a liquid is the pressure at which the liquid begins to boil or evaporate. Cavitation, which may damage the pump, occurs when the net positive suction head (NPSHR) needed by the pump is not available. In order to avoid cavitation, a minimum pressure referred to as the net positive suction head available (NPSHA) must be present at the suction port so that the liquid does not boil or evaporate. It must be ensured that the pressure applied at the suction port is always greater than the vapour pressure of the liquid at a given temperature of the medium. Note: If a pump cavitates, the control valve on the pressure side should be throttled in order to reduce the flow rate and thus the NPSH value required by the pump. However, it must be ensured that the flow rate remaining is large enough to sufficiently cool and lubricate the pump.

03. What is a dry-running pump?

In a dry-running pump, the component that comes into contact with the medium (the wetted part) is separate from the motor. The seal of the pump shaft in the wetted part is provided in the form of a mechanical seal. The pump is driven by a motor connected to the pump shaft by a coupling.

04. How to install Grundfos Sololift2 (video)

Grundfos service specialist shows how to install Grundfos Sololift2.
Note: All the services that are demonstrated in the video are for knowledge purpose, however service supervision is recommended and we are not responsible for the damages incurred as a result of DIY.

05. What is Grundfos Distributed Pumping?

Distributed pumping replaces a large central pump and control valves with small variable-speed pumps placed at each zone or terminal unit, such as each air handler or heat exchanger in an HVAC system. Each pump delivers only the flow its zone needs, so less energy is lost across valves and the system is easier to balance.

“Fluid Pumps and Systems is simply the best. Their team is knowledgeable, reliable, and provides tailored solutions. Their quality products and exceptional after-sales support make them stand out from the rest. I highly recommend Fluid Pumps and Services for all your pumping needs.”

Ashwin Kumar FC

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“Fluid Pumps and Systems are a truly technically competent enterprise, they have been very grounded during pre and post sales. They clarified all my doubts during the purchase and even after installation phase. I would highly recommend them for your purchase.”

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“Right from the start of the quotation to purchase, Mr Vijaya Bhaskar and his Engineers have been responsive at all times. They even went beyond to help us once shows their dedication level to the customers.”

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“Plant was down due to some pump issue, I contacted them and they sent the team to Erode that day and solved the issue. They identified and brought the spares accordingly and saved my time.”

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“Sales team of Fluid Pumps and Systems are professional and technically knowledgeable. They gave the best pump for my apartment in Coimbatore.”

Manimalr Sivakumar

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“Seal leakage in pump, they had ready stock. Pump now working fine.”

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“Good quality products and best after sales and service .”

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01. GRUNDFOS WATER PUMP

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