Gravimetric Pump for Peristaltic Applications

A gravimetric peristaltic pump has been introduced to Riverdale Global’s Riverdale Gravimetric System (RGS), known as the first complete sealed delivery system for liquid color and additives. The new Maguire MS4 pump provides gravimetric control for peristaltic applications, which are a viable alternative for when the dosing is extremely low or when Return-for-Refill is not logistically possible. This system utilizes the same load cell technology as the company’s updated RGS Controller. The MS4 control software uses automatic speed control to assure self-adjusting accuracy and provides precise metering at low rates to improve the quality of the coloring process. The pump design is compact and lends itself to minimal maintenance. It is said the liquid delivery tubes are easy and quick to change when color changes are required and can be reused, requiring replacement periodically according to usage and time.

The patented design of the pump utilizes a stepper motor with no gearbox to drive the dosing of the liquid and provides an extensive range on the dosing control and capacity. The dosing range is fully maximized by the intelligent technology of the software control combined with the central roller driving an outer set of rollers through friction contact. This is said to provide a 5-to-1 speed reduction without a gearbox, ensuring accurate dosing, an efficient and compact design and minimal ongoing maintenance, while still enabling speedy access and color change for operators. Riverdale’s gravimetric peristaltic pumps offer several benefits in various applications, including:

 •  Precise Flow Control: Gravimetric peristaltic pumps provide accurate and precise flow control. By measuring the weight of the liquid color being dispensed or transferred, these pumps can offer more consistent and reliable results, especially in applications where precise dosing is critical.

 •  No Contamination: Because the fluid being pumped only comes into contact with the tubing or hose and not with any other pump components, there is minimal risk of contamination.

 •  Ease of Maintenance: These pumps have a simple design with few moving parts, making them easy to maintain and service.

 •  Self-Priming: Peristaltic pumps are self-priming, meaning they can automatically evacuate air from the system and start pumping without manual priming or additional equipment.

 • Remote Operation and Control: Gravimetric peristaltic pumps are equipped with advanced control systems, enabling remote operation, monitoring, and automation.