PM Type Foam Pump

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The PM series vertical foam pump is widely used in industries such as metallurgy, mining, coal, and chemical engineering. It is suitable for conveying abrasive or corrosive slurries containing foam. This series of pumps can effectively eliminate foam in the slurry during operation and can still operate normally when the feed is insufficient. It is especially suitable for various flotation process flows and is an ideal product for conveying foam-type slurries.

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Product Details

Overview

The PM series vertical foam pumps are widely used in industrial sectors such as metallurgy, mining, coal, and chemical industries. They are suitable for conveying abrasive or corrosive slurries containing foam. This series of pumps can effectively eliminate foam in the slurry during operation and can still work normally when the feed is insufficient. They are especially suitable for various flotation process flows and are ideal products for conveying foam-type slurries.

Model Meaning

Structural Description

The PM series foam pumps have a simple structure, are easy to install and use, and have a high degree of generalization. See the structural diagram for details.

1. Transmission part: The transmission part of this pump is compatible with the LP and LP series slurry pumps. According to user needs, direct drive or belt drive can be selected.

2. The material box is made of steel structure, equipped with a tangential inlet and an overflow box. The overflow box returns excess feed back to the feed tank; the tangential inlet allows the slurry to quickly enter the pump, helping to eliminate some foam.

3. Pump head: The pump head structure is the same as the ZBD and ZBB series slurry pumps, featuring a double pump casing structure. The pump body, pump cover, front guard plate, etc., are interchangeable with slurry pumps of the same caliber in the ZBD and ZBE series. Depending on the material conveyed, the flow parts can be made of metal rubber or other non-metallic materials. For metal materials, the pump body, pump cover, liner, front guard plate, etc., are interchangeable with slurry pumps of the same caliber in the ZBD and ZBB series; for rubber or other non-metallic materials, the front liner and rear liner are interchangeable with slurry pumps of the same caliber in the 2BD and R series.

PM Type Foam Pump Structural Diagram

1-Pump Cover 2-Liner 3-Impeller 4-Spiral Front Guard Plate 5-Pump Body 6-Shaft 7-Material Box 8-Bearing 9-Bearing Housing 10-Bearing 11-Suction Inlet 12-Discharge Outlet 13-Rear Guard Plate

Faults	Causes	Solutions
Cannot suck water	Air ingress at suction pipe or packing	Eliminate air ingress fault
	Wrong rotation direction	Change rotation direction
	Impeller damaged	Replace impeller
	Pump is too far above the suction liquid surface	Raise the liquid level to meet suction requirements
	Suction pipe blockage	Clear blockage
Shaft power too high	Packing is too tight	Loosen packing gland bolts
	Friction inside the pump	Adjust clearance
	Bearing damaged	Replace bearing
	Flow rate too high	Adjust pump operating conditions
	Specific gravity exceeds normal conditions	Adjust specific gravity
	Motor shaft and pump shaft misalignment	Adjust concentricity of motor shaft and pump shaft
Pump does not rotate	Slurry inside liner jams the impeller	Clear slurry
Pump does not rotate	Water frozen and jams impeller	Defrost
Bearing overheating or end face oil leakage	Too much or too little bearing lubricant	Add lubricant as required
	Lubrication circuit blockage	Unclog and clean lubrication circuit
	Contaminants entered bearing	Clean bearing
	Lubricant contains impurities	Change oil
	Bearing damaged	Replace bearing
Short bearing life	Motor and pump shaft misalignment	Adjust concentricity of motor shaft and pump shaft
	Shaft bent	Replace shaft
	Friction inside pump	Eliminate friction
	Impeller imbalance	Rebalance or replace impeller
	Foreign object entered bearing	Clean bearing
	Improper bearing assembly	Reassemble bearing as required
Large vibration and noise	Bearing damaged	Replace bearing
	Impeller imbalance	Rebalance or replace impeller
	Uneven flow or cavitation phenomenon	Improve pump feeding conditions
	Air ingress or cavitation in suction pipe	Eliminate air ingress or clear blockage
	Poor foundation fixation	Strengthen foundation fixation
	Unreasonable pipeline layout	Improve pipeline layout
	Cavitation Occurrence	Cavitation Elimination