German SERO pump SERO model SERO price

SERO pumps are rotary pumps that transport liquids or increase their pressure by relying on the change and movement of the working volume formed between the pump cylinder and the meshing gears. Two enclosed spaces are formed by two gears, the pump body, and the front and rear covers. When the gears rotate, the volume of the space on the disengaging side increases from small to large, creating a vacuum that draws in the liquid, while the volume of the space on the meshing side decreases from large to small, squeezing the liquid into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure at the discharge port of a gear pump depends entirely on the magnitude of the resistance at the pump outlet.

SERO pump motor features

1) Compact structure, small size, and light weight: Composed of front cover, intermediate body, and rear cover made of aluminum alloy, gears made of alloy steel, and pressure plates made of aluminum alloy. Two DU bearings are press-fitted into the front and rear covers respectively. DU material is an ideal bearing material for gear pumps, which can greatly extend the service life of the gear pump. 2) Reliable operation: The pressure plate is the main component for radial and axial pressure compensation, which can reduce bearing load and automatically adjust the axial clearance of the gear pump, thereby effectively improving the performance indicators and operational reliability of the gear pump; GM5 and GPC4 series gear motors offer four structural configurations: single rotation without front bearing, double rotation without front bearing, single rotation with front bearing, and double rotation with front bearing. Gear motors with front bearings can withstand both radial and axial forces. 3) High speed and high pressure: Speed ranges from 3000 to 4000 rpm, theoretical torque ranges from 17N.m (N.m) to 64N.m, and pressure can reach 20-25MPa. 4) Connection methods suitable for imported machinery and engineering equipment: Complies with SAE and national standard GB for mounting flanges, shaft extensions, oil inlet, and oil outlet connections. Widely applicable to hydraulic systems in automobiles, tractors, engineering machinery, agricultural machinery, and other mechanical equipment.

SERO pump maintenance

Centrifugal pump shutdown is mainly caused by mechanical seal failure. Failure mostly manifests as leakage, with the following causes: 1) Leakage at the sealing faces of the stationary and rotating rings, mainly due to: end face flatness and roughness not meeting requirements, or surface scratches; particulate matter between the end faces preventing uniform operation; improper installation or incorrect method. 2) Leakage of the compensating ring seal, mainly due to: deformation of the gland, uneven preload; incorrect installation; seal quality not meeting standards; incorrect seal selection. Actual usage indicates that the most common failure location for sealing elements is the end faces of the rotating and stationary rings. Cracking of the centrifugal pump mechanical seal's rotating and stationary ring end faces is a common failure phenomenon, mainly caused by: 3) Excessive seal face gap during installation, preventing the flushing fluid from carrying away heat generated by the friction pair in time; flushing fluid leaks through the seal face gap, causing overheating and damage to the end faces. 4) Vaporization and expansion of the liquid medium cause the two end faces to separate due to vaporization expansion force; when the two sealing faces are forced together, the lubricating film is destroyed, causing overheating of the end face surface. 5) Poor lubricity of the liquid medium, combined with excessive operating pressure, causes asynchronous tracking rotation of the two sealing faces. For example, a high-speed pump with a speed of 20445r/min, a seal face center diameter of 7cm, reaches a linear velocity of up to 75 m/s after operation. If one sealing face lags and fails to track the rotation, instantaneous high temperature causes damage to the sealing face. 6) Blockage of the seal flushing fluid orifice plate or filter screen results in insufficient water flow, leading to mechanical seal failure.

SERO pump industry applications

Centrifugal pumps feature a compact structure, wide flow and head ranges, suitability for mildly corrosive liquids, multiple control options, uniform flow, smooth operation, and low vibration. They do not require special vibration-damping foundations. Advantages include low costs for equipment installation, maintenance, and overhaul. They are widely used in industries such as electric power, metallurgy, coal, and building materials to transport slurries containing solid particles, such as hydraulic ash removal in thermal power plants, slurry transport in metallurgical beneficiation plants, and coal slurry and heavy medium transport in coal washing plants. When a centrifugal pump operates, it must be placed on land with the suction pipe submerged in water, requiring priming before startup. Due to structural limitations, mud pumps and submersible centrifugal pumps require the motor to be positioned above the water surface while the pump is submerged. Therefore, they must be fixed; otherwise, the motor falling into the water will result in motor scrapping. Moreover, since the long shaft length is generally fixed, pump installation and use are more troublesome, and application scenarios are subject to many restrictions.

Weidou Intelligent Technology professionally sells German SERO centrifugal pumps, SERO gear pumps, SERO diaphragm pumps, SERO centrifugal pumps, SERO piston pumps, SERO vacuum pumps, SERO screw pumps, SERO submersible pumps, SERO peristaltic pumps, SERO lubrication pumps, SERO vane pumps, SERO metering pumps, SERO hand pumps, SERO drum pumps, SERO lobe pumps, SERO booster pumps, SERO liquid pumps, SERO air pumps. Original German imports. Welcome customers to inquire and order.