What is a Suction Diffuser?

The velocity of the flow decreases while the pressure increases.
The liquid discharged from the impeller typically has a high flow rate and low pressure. Once the liquid has entered the diffuser, the flow channel gradually expands in a horn-like shape. This reduces the flow velocity and converts kinetic energy into pressure energy, increasing the output pressure of the liquid.

It is important to guide the fluid and reduce the vortex.
The diffuser effectively transforms the non-axial rotating flow of the liquid into a stable linear flow by employing a well-designed flow channel and vanes, which minimize turbulence and eddy flow.

The objective is to reduce energy loss and improve efficiency.
By employing a reasonable angle of diffusion and an appropriate layout of vanes, it can reduce friction and collision energy loss, thereby improving pump efficiency.

Filtering medium: The suction diffuser has a filtering function which effectively eliminates debris entering the pump, preventing impurities from causing damage to the pump.

Straighten the fluid: The suction diffuser is equipped with a straightener at the outlet end, which eliminates the vortex in the pipeline and ensures a smooth fluid flow direction, thus guaranteeing a seamless and uninterrupted fluid entry into the pump.

Built-in deflector, making the fluid more stable

Start-up strainer screen protection design, preventing foreign bodies from entering the pump

Diffusers with the same or different diameters at inlet and outlet readily available

Integrate strainer, elbow and the suction stabilizer, save space and cost

Strainer screen with 63% opening ratio provides larger flow area than the traditional strainer

Water Treatment System

Fresh Water Supply: In urban water supply pumping stations, diffusers are employed to enhance the pressure output of pumps, thereby guaranteeing a consistent supply of water to high-rise buildings and long-distance water transmission networks.

Wastewater Treatment: In wastewater treatment, diffusers play an important role in minimizing energy loss and increasing efficiency, particularly when conveying viscous or particulate-containing wastewater.

Industrial field

Power industry: In power plant circulating water pumps, diffusers ensure the efficient transportation of cooling water, which is essential for maintaining the normal operation of power generation equipment.

Mine Drainage: In mine drainage systems, they are employed to enhance the efficiency of liquid conveyance in the presence of particulate matter or sediment.

Building water supply

Diffusers are utilized in water supply pumps for high-rise buildings with the objective of guaranteeing that the pressure demands of the head can be met while maintaining a consistent flow.

Environmental and engineering projects

Sludge transport: In environmental projects, diffusers are used in pumping systems transporting highly concentrated sludge to improve pump suitability and stability.

Water conservation projects: In large pumping stations such as drainage stations or irrigation projects, diffusers ensure the efficient operation of high flow pumps.

Special areas

Pharmaceutical and food industries: In pumps handling high purity liquids, diffusers ensure fluid stability and prevent the effects of contamination or turbulence.

Scientific research equipment: In fluid experimental setups or precision instruments, diffusers are used to optimize flow conditions and provide precise flow and pressure control.

Check quality: Check that the diffuser surface is free of cracks, burrs and impurities and that the flow path is smooth.

Correct positioning: The suction diffuser must be aligned with the impeller outlet to ensure coaxiality and avoid eccentricity.

Fastening and sealing: Tighten the bolts to the standard to ensure a firm connection and at the same time provide a good seal to prevent leakage.

Commissioning after installation: Check that the flow rate and pressure meet the design requirements, avoid vibration or noise problems.

Regular cleaning: Clean the flow channel of debris and sediment to prevent clogging and degradation of flow performance.

Check for wear and tear: For particulate handling pumps, check regularly for wear or corrosion of the vanes and impellers.

Lubrication and corrosion protection: If the diffuser has moving or rotating parts, they should be lubricated regularly and the anti-corrosion coating should be checked for integrity.

Monitor performance: Monitor pump noise, vibration and pressure fluctuations and overhaul diffuser condition in a timely manner if abnormalities occur.

When choosing the suction diffuser, it should be selected according to the actual use scene and demand to ensure the applicability and performance of the equipment.

In the process of installation and use, it should be operated strictly in accordance with the product instructions and operating procedures to avoid misuse resulting in equipment damage or safety accidents.

In case of equipment failure or abnormal situation, you should stop the machine in time to check and contact the professional maintenance personnel for maintenance and treatment.