Lobe Pumps

Lobe Pumps from Sisdoz for Different Chemical Transfer Needs Lobe pumps stand out for their design as well as their practical and easy operation in general. This type of pump, which plays an important role in ensuring smooth and pulse-free flow, generally consists of a cast steel or stainless steel body. One of the most important characteristics of lobe pumps is that they are valveless and positive displacement pumps. They can be used without difficulty in transfer processes for low or high viscosity fluids, particularly due to their positive displacement characteristics. At the same time, in some applications these pumps are also referred to as rotary lobe pumps. The pumps in question feature a relatively sensitive design structure with regard to hygiene, as they are used in food applications. In fact, FDA approval is required to ensure that lobe pumps meet hygiene standards. Lobe pumps, which have a very wide capacity range, can be produced with lobe alternatives of different designs depending on the customer process.

Advantages of Lobe Pumps

• Provides trouble-free operation in transfer processes for low, medium or high viscosity fluids. • Allows easy installation and maintenance. • Can be used for transferring liquids containing particles up to a certain size. • Facilitates easy transportation of sticky or sensitive fluids. • Thanks to its stainless steel material, delivers excellent hygiene performance.

Lobe Pump Features

• Different rotor options, • Separate lobe options for products containing solid particles, • Side or top/bottom outlet options, • Gearbox with protective coating, • Stainless pump body with food-suitable connection options, • Clockwise or counterclockwise rotation options.

Working Principle of Lobe Pumps

Lobe pumps consist of a pump head in contact with the fluid and a gearbox with timing gears at the rear that control the movement of the lobes. Motion from the motor shaft is transferred to the rotor shaft via gears. As the rotor pair begins to rotate, the volume in the inlet section increases and creates a vacuum in the pump's suction section. This vacuum draws fluid into the pump body. As the rotor moves and rotates, the volume in the outlet area decreases and consequently the fluid is discharged to the outlet. The surface parts of all areas where fluid passes are completely stainless. Depending on viscosity conditions or chemical properties, different seal or rotor options can be selected. Sensitive gaps exist between the rotor and body during the rotation process in lobe pumps. This prevents corrosion of metal parts and damage to products. For this reason, they are actively used in both food and pharmaceutical industries. Kadir Fakioğlu Industrial Division Sales Manager Sisdoz A.Ş.