Centrifugal Liquid Feed Pump

The Centrifugal Liquid Feed Pump is designed for reliable transfer and circulation of prepared liquid feed in automated pig feeding systems. It can be installed between the mixing tank, distribution pipeline and feeding circuits to transport homogeneous feed mixtures efficiently to the required livestock-house sections.

Centrifugal pumps are widely used in commercial liquid feeding because their rotating impeller provides continuous flow through the distribution network. Correct pump selection allows the system to maintain the required flow and pressure across different pipeline lengths and feeding points.

For demanding pig farm applications, wetted pump components can be manufactured from corrosion-resistant stainless steel to improve durability when handling feed mixtures, water and approved cleaning media. Suitable impeller and pump-body designs can also help handle suspended feed particles encountered in livestock feeding applications.

Pump capacity, motor power, materials, connection dimensions, control mode and installation arrangement can be selected according to feed formulation, pipeline layout, farm size and project requirements.

• Reliable Liquid Feed Transport: Designed to transfer prepared liquid feed from mixing equipment into the farm distribution network.
• Centrifugal Pumping Principle: A rotating impeller converts motor energy into flow and pressure for continuous feed circulation.
• Stainless Steel Options: Pump bodies, impellers, shafts and other wetted components can be supplied in corrosion-resistant stainless steel.
• Suitable for Intensive Operation: Heavy-duty configurations are available for commercial pig farms with frequent feeding cycles.
• Variable Flow Control: Compatible frequency-converter control can adjust pump speed according to pipeline pressure and required feed delivery rate.
• Stable Feed Distribution: Controlled pumping supports more consistent liquid-feed delivery to valves at different distances from the feed kitchen.
• Wear-Resistant Construction: Robust pump-body and impeller configurations can be selected for feed mixtures containing suspended particles.
• Stone Trap Compatibility: An upstream foreign-material separator can be installed to protect the pump from stones and other heavy contaminants.
• Easy Service Access: Pump and motor arrangements can be designed for practical inspection, seal replacement and routine maintenance.
• Flexible System Integration: Suitable for connection with mixing tanks, weighing tanks, feed valves, flow meters, rinse systems and computer-controlled liquid feeding installations.

• Pump Casing: Contains the impeller and directs liquid feed from the suction connection toward the discharge outlet.
• Impeller: Rotating component that transfers mechanical energy to the liquid feed and generates flow.
• Electric Motor: Supplies the power required for pump operation and can be matched to the hydraulic requirements of the project.
• Pump Shaft: Transfers rotational force from the motor to the impeller.
• Mechanical Seal: Seals the rotating shaft area and helps prevent liquid leakage from the pump casing.
• Suction Connection: Receives prepared liquid feed from the mixing tank, balance tank or upstream pipeline.
• Discharge Connection: Directs pressurized feed into the main distribution pipeline.
• Motor Coupling / Close-Coupled Assembly: Maintains reliable power transmission and correct shaft alignment according to pump design.
• Mounting Base: Provides stable installation and reduces unwanted mechanical movement.
• Optional Frequency Converter: Enables variable-speed operation according to feed-flow and system-pressure requirements.

Prepared liquid feed enters the pump through the suction connection and flows toward the center of the rotating impeller.

When the electric motor rotates the impeller, the feed mixture is accelerated outward by centrifugal action. The pump casing converts part of this velocity into pressure and directs the feed toward the discharge connection.

The pressurized liquid feed then travels through the distribution pipeline to the selected feed valves and troughs. In computer-controlled systems, valve opening and pump operation are coordinated according to the programmed feeding sequence.

Where a frequency converter is installed, pump speed can be adjusted automatically to maintain a more stable flow rate even when pipeline resistance changes as different feeding valves operate.

After feeding, the pump can also operate as part of the circulation or cleaning sequence where the overall liquid feeding system is designed for this function.

• Commercial pig liquid feeding systems
• Sow and breeding farms
• Gestation and farrowing facilities
• Piglet nursery liquid feeding
• Growing and finishing pig farms
• Centralized liquid feed kitchens
• Feed mixing and distribution systems
• Fermented liquid feed systems
• Multi-recipe feeding installations
• Residue-free liquid feeding systems
• New pig farm construction projects
• Existing feeding system modernization
• Steel structure pig farm and livestock equipment projects

• Pump flow capacity
• Required pressure and pump head
• Motor power
• Voltage, phase and frequency
• Stainless steel pump-body configuration
• Impeller design according to feed characteristics
• Mechanical seal configuration
• Suction and discharge connection diameter
• Flanged or hygienic connection interfaces
• Fixed-speed or variable-frequency operation
• Stone trap and foreign-material protection
• Flow meter integration
• Pressure sensor integration
• Control cabinet and PLC interface
• OEM configuration available upon request
• Designed according to local climate and farm conditions

Pump Position: Install the pump close to the mixing or weighing tank where possible and arrange the suction line to minimize unnecessary resistance.

Foundation: Mount the pump securely on a level concrete foundation or rigid steel frame to maintain correct alignment and limit vibration.

Suction Piping: The suction pipe should be correctly sized and arranged to avoid air pockets, excessive restrictions and unsuitable inlet conditions.

Stone Trap: Where coarse ingredients or foreign objects may be present, install a suitable stone trap or separator upstream of the pump to protect the impeller and casing.

Discharge Piping: Securely support the distribution pipeline so that excessive external pipe loads are not transferred to the pump connections.

Electrical Installation: Motor protection, overload protection and frequency-converter settings should match the motor and hydraulic requirements of the system.

Commissioning: Confirm pump rotation, valve positions, suction conditions, pipeline pressure and liquid-feed flow before normal automatic operation.

Routine Maintenance: Periodically inspect the impeller, mechanical seal, shaft, bearings, motor, pipe connections and mounting bolts. Clean the pump according to the hygiene program and replace worn components before they affect feed delivery performance.

In a standard commercial pig liquid-feeding project, the centrifugal pump is installed downstream of the mixing tank. After preparation of the feed recipe, the pump transfers the mixture through the main distribution pipeline while the feeding computer opens the required feed valves in sequence.

For farms with long pipelines or feeding points at different distances, variable-speed control can be used to regulate pump output and help maintain a more uniform feed flow as system resistance changes.

Where feed ingredients may contain stones or other dense foreign material, a stone trap can be installed between the mixing tank and pump to reduce the risk of mechanical damage.

Final pump selection should be based on recipe consistency, dry-matter content, required flow rate, pipeline diameter, total pipe length, elevation differences, number of valves and the feeding strategy of the farm.

Q: What is a centrifugal liquid feed pump used for?

A: It transfers prepared liquid feed from mixing or weighing tanks through the distribution pipeline to feed valves and livestock troughs.

Q: Why is stainless steel recommended for liquid feeding pumps?

A: Stainless steel offers good corrosion resistance, mechanical durability and cleanable surfaces for equipment that is repeatedly exposed to wet feed and cleaning cycles.

Q: Can the pump handle feed containing solid particles?

A: Suitable centrifugal pump configurations can handle pumpable liquid feed containing suspended particles. Pump and impeller selection should be based on ingredient size, concentration and overall feed consistency.

Q: When should a screw pump be used instead?

A: Screw pumps may be preferred for particularly viscous media or applications requiring different pumping characteristics. Final selection should be based on the feed formulation and hydraulic requirements.

Q: Can pump speed be automatically controlled?

A: Yes. A compatible frequency converter and feeding controller can vary motor speed according to required flow, system pressure or feeding sequence.

Q: Why is a stone trap installed before the pump?

A: A stone trap separates heavy foreign objects before they reach the pump, helping protect the impeller and other internal components from mechanical damage.

Q: Can the pump be integrated with a flow meter?

A: Yes. Electromagnetic or other suitable flow measurement can be installed downstream of the pump when the liquid feeding control system supports this function.

Q: Is the pump suitable for existing liquid feeding systems?

A: Yes. Retrofit installation is possible when pump capacity, pipeline dimensions, electrical supply and controller compatibility are correctly matched.

Q: What information is required for pump selection?

A: Please provide feed composition, approximate solids content, required flow rate, pipeline diameter, total conveying distance, elevation difference, number of feed valves, electrical supply and required control method.