Various slurry pump parts that you need to know everything

Slurry pumps deal with liquids that contain solids, such as sewage, coal slurry, and ore slurry. Typically, when solids damage or clog other kinds of pumps.

This article covers everything you need to know about slurry pump parts and their applications. Stay tuned!

Parts of Slurry Pumps

It will depend on the application when discussing slurry pump parts. Slurry pumps can be made from various materials and come in multiple designs. For instance, stainless steel is for making high-pressure slurry pumps because it can withstand high pressures.


The liner guards against abrasion and wear on the impeller.


The expeller seal and gland-packed pump are for liquid purposes. The external cooling fluid is to cool the sealing system. The expeller seal creates a low-pressure area around the shaft to create a hydrodynamic seal.

Expeller seals decrease water usage while extending the lifespan of the shaft sleeve. With this setup, the device is guaranteed leak-free at low RPMs and when the pump is off.

In addition, the design for the impeller is to reduce impeller back pressure and extend seal service life. The vertical slurry pump, also called a vertical mud pump, uses an extra impeller to reduce back stress on the main impeller and increase the seal’s service life.

The wetted sections, meanwhile, are made of white, wear-resistant cast iron and are anti-abrasion. Furthermore, compared to horizontal slurry pumps, vertical mud pumps are lighter, have fewer worn-out metal or rubber components, and occupy less floor space than horizontal pumps.

People often use vertical slurry pumps to move mortar, mud, ore slurry, and other liquids with suspended solids. Such as;

  • Environmental protection,
  • municipal engineering,
  • thermal power plants,
  • gas coking plants,
  • oil refineries,
  • steel mills,
  • mining,
  • papermaking,
  • cement plants,
  • food plants,
  • printing, and
  • dyeing industries are primarily responsible for the pumping of
  • concentrated liquid,
  •  heavy oil,
  • oil residue,
  • turbid liquid,
  • Mud,
  •  Mortar,
  •  quicksand, and
  • flowing sludge in urban sewage channels.

As one of the wetted parts for the slurry pump, the throat bush is interchangeable with the AH/HH/L/M slurry pump throat bush. As one of the wetted parts, its wear resistance is significant to the pump’s work life.

Kingda pumps offer Cr27Mo high chrome alloy, which has high abrasion resistance. Tapered mating faces make maintenance easy because they allow for precise alignment when putting the slurry pump parts together and easy removal. Sharp mating faces make maintenance easy because they allow for precise alignment when putting the pieces together and easy removal.

The throat bush of a slurry pump is one of the parts that can deteriorate quickly, lowering pump performance. Adjustments are often made to the throat bush and impeller gap while the pump runs to keep production from being affected. However, this can put worker safety at risk.

Lantern Ring

A lantern ring is a ring or sleeve that surrounds a rotating shaft. It has a hole that allows for the forced feeding of grease or oil to the bearing surfaces, and this lantern ring is for packing seals and expeller seals because of its effectiveness in cooling and lubrication.

Lantern rings help protect the stuffing box by letting water or pressure flush it. Additionally, they keep out contaminants. The packing, shaft, and stuffing box could cause damage; any other foreign object could enter the stuffing box.

Lantern rings simultaneously serve three distinct purposes:

Protect. The word “lantern” is used most frequently in the phrase “lantern ring.” A lantern is a box or anything that holds or protects a light source.

Lantern rings help protect the stuffing box by letting water or pressure flush it. Additionally, they keep out contaminants. The packing, shaft, and stuffing box could all be damaged if the material pumping in or any other foreign object enters the box and outlet for cooling. These features enable ventilation in buildings. The lantern rings in the stuffing box help to open it up and cool it down. It will prevent the system from being entirely shut down.


The lantern ring’s ability to facilitate lubrication is one of its primary purposes. The lubricant will help in packing fluid into the lantern ring. Thus, there is less resistance against the shaft. Lubrication also helps reduce the rate at which machine parts wear out and the amount of heat that builds up in the system.

Expeller Ring

The expeller ring and expeller for slurry pumps work together. Not only can they aid in pump sealing, but they can also lessen centrifugal force. Kingda offers an expeller in cast iron, high chrome, and rubber materials. The design and material of the expeller are essential factors in determining its service life.

The vertical slurry pump is a single-stage, axial suction centrifugal structure. Most of all, it is comprises the volute, impeller, rear liner plate, shaft sleeve, support, support plate, shaft, bearing, bearing body, and other components.

The impeller, volute, back liner plate, and other slurry pump parts come into contact with the slurry. The composition of various materials depends on the properties of the slurry.

Shaft Sleeve

Shaft sleeves are cylindrical metal tubes that shield pump shafts from wear, corrosion, and erosion at vulnerable locations such as the stuffing box.

A shaft sleeve’s primary purpose is to shield the shaft from packing wear at the stuffing box. Shaft sleeves help protect the shaft seal’s running surface and other surfaces from damage or wear from abrasion. The material used to build the shaft must have sufficient hardness; otherwise, a shaft sleeve may break.

Shaft Bearing

The slurry circulating pump is the central part of the desulfurization system, next to the absorption tower. The main job of a single-suction, single-stage horizontal centrifugal pump is to keep the sludge in the absorption tower moving so that all of the sulfur dioxides in the flue gas can be absorbed.

Standard centrifugal pumps used in homes, buildings, and other structures for circulating slurry are electrically powered. A typical pump has three main parts: the motor rotor, the bearings that hold the pump up, and the pump impeller.

Tips for Ensuring Proper Maintenance of Slurry Pump
  • Inspect the tension at least once every quarter if it is belt driven. Too tight belts will damage the light series motor bearing, and when that bearing fails, the thrust bearing in the pump will begin to fall. Belts running too loosely will result in poor performance and slippage, resulting in sheave damage. If the belts are too loose, an experienced ear will detect them. They shall make a flapping sound. Straps that are too tight may cause the motor to draw high amperage or cause bearing temperatures to rise before bearing failure becomes apparent.
  •  Inspect the Oil. If your pump is oil-lubricated, check periodically to ensure that neither water nor product is present in the oil. If your pump’s sealing mechanism is in good condition, change the oil frequently to prolong its life.
  • Check the Water. Water is detrimental because it will cause bearing and/or motor failure. Seals are prone to leaking, and a minor amount of water is acceptable. The oil will become milky if it contains a significant amount of water.

Some critical parts of your pump may already help you determine if there is water in your oil. One such component is the moisture sensor, which will trip if excessive water is in the oil.

Check the pump’s seal first. Adjust the moisture sensor’s sensitivity setting if you believe it produces false alarms.

  • Check propeller clearance. Checking your impeller clearance on occasion will result in the best performance. Consult your manual for the recommended release. Examine the impeller and other wetted parts for excessive wear when checking clearance.

When the slurry pump parts that get wet wear out, the clearance can get bigger, which hurts performance.

Wear can be caused by how rough the product being pumped is or by moving away from the pump’s designed operating curve.

Is the Slurry Pump Being Utilized for Its Intended Purpose?

System and process changes happen sometimes, but we keep asking the same things about our equipment without taking any process changes that may have occurred over the years into account.

For troubleshooting, putting a pressure gauge and flow meter on the pump’s discharge line is recommended. The TDH can be approximated by multiplying the pressure reading by 2.31. Then, you can take the TDH and a flow reading to determine if your pump is operating close to BEP on the pump curve. Please contact kingda pump.

  • Determine temperature. Our submersible pumps come equipped with temperature sensors for motor protection. Each manual supplied with the pump will detail how to properly connect and monitor the temperature sensors for the longest possible lifespan.
How to Care Slurry Pump

If the motor overheats, sensors will trip, and the pump will shut off until the engine cools. You risk motor failure if the sensors are not connected.

If you don’t have these devices connected when you make a warranty claim, your warranty will be null and void.

Transferring is hard to do with regular pumps, so they need special pumping equipment to do this tough job. With its ground-breaking eddy current pump design, the Kingda pump is a unique way to solve this problem.

Kingda slurry pump works well for a long time, lowering the total ownership cost when used to pump water out of ponds. Looking for a slurry pump that is best for your needs? Visit our website


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