Cast Iron Peristaltic Pumps
Last Updated: April 1, 2025
Description
Cast iron peristaltic pumps are a type of positive-displacement pump that utilize a flexible tube housed within a cast iron casing. These pumps are designed to move fluids by compressing the tube with a rotor, which forces the fluid through the tube. The cast iron construction provides the pump with excellent strength and abrasion resistance, making it suitable for handling fluids under high pressure conditions.
Working Principle
Peristaltic pumps operate by using a rotor with several lobes that compress a flexible tube as they rotate. This compression creates a seal between the lobes, trapping a portion of the fluid and pushing it forward through the tube. The design ensures that the fluid only contacts the inside of the tube, preventing contamination and leakage. This makes peristaltic pumps particularly useful for applications requiring sterile conditions or where the fluid must not contact the pump mechanism. The separation of the pumping mechanism from the fluid also reduces maintenance needs and the risk of clogging or corrosion.
Applications
Peristaltic pumps are widely used in various industries due to their ability to handle a range of fluids, including those that are viscous, shear-sensitive, or contain solids. Specific examples include:
- Sewage Treatment: Used for pumping aggressive sewage and slurries due to their ability to handle high pressures and abrasive materials.
- Chemical Metering: Ideal for precise chemical dosing in industrial processes.
- Medical Applications: Utilized in dialysis and blood transfusion machines where sterile conditions are critical.
Advantages over other Peristaltic Pumps
Cast iron peristaltic pumps offer several advantages over other types of peristaltic pumps:
- Strength and Durability: The cast iron construction provides superior strength and abrasion resistance, making them suitable for high-pressure applications.
- High Pressure Ratings: These pumps can handle higher pressure ratings compared to those made from less robust materials, allowing them to be used in more demanding environments.
Limitations
Despite their advantages, cast iron peristaltic pumps have some limitations:
- Inability to Handle Abrasives: While they are robust, peristaltic pumps generally struggle with highly abrasive materials, which can wear down the flexible tubing over time.
- Pulsed Fluid Flow: The nature of the pumping mechanism can result in a pulsed flow, which may not be suitable for applications requiring a steady fluid delivery.
Considerations
When considering the use of cast iron peristaltic pumps, several factors should be taken into account:
- Initial Costs: The robust construction of cast iron pumps may result in higher initial costs compared to pumps made from other materials.
- Operating Expenses: While maintenance needs are generally low, the flexible tubing may require periodic replacement, especially if used with abrasive fluids.
- Durability: The cast iron casing provides excellent durability, making these pumps a long-term investment for high-pressure applications.
- Accuracy: The elastic nature of the tubing can lead to variations in the volume of fluid delivered, which may affect precision in applications requiring exact dosing.
from Watson-Marlow Fluid Technology Group
The Bredel CIP 40 and Bredel CIP 50 are available with the option of externally-operated retracting shoes to allow non-intrusive cleaning in CIP applications. 3A and FDA certified. Food approved NBR pump hose, with food grade lubricant. Stainless steel sanitary connectors range includes DIN, ASA or... [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 232.1
- Liquid Flow: 21.13
- Power Source: 115 VAC, 230V to 460V, Three Phase, 480V to 690V, Three Phase, 230 VAC; AC
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Aluminum; Cast Iron
- Discharge Pressure: 116.0
- Liquid Flow: 211
- Discharge Size: 6.000
from Watson Marlow Pumps Group
Bredel engineering created an entirely new type of pump - the high-pressure hose pump. Its patented technology achieved what was believed to be impossible: the unbeatable simplicity, reliability and low maintenance needs of peristaltic pumping brought to high-flow, high-pressure duties. Today,... [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 232.0
- Liquid Flow: 39
- Power Source: 115 VAC, 230V to 460V, Three Phase, 480V to 690V, Three Phase, 230 VAC; AC
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Aluminum; Cast Iron
- Discharge Pressure: 200.0
- Liquid Flow: 9.2
- Discharge Size: 1.250
from Watson Marlow Pumps Group
Direct-coupled design, 30% smaller footprint. Improved choice of flanges, threaded inserts or sanitary connectors. Inner hose diameter 3/8" (10mm). Minimum starting torque 250 in lbs (47 Nm). Capacity per revolution 0.0058 gal (0.022 liter). Maximum discharge pressure 110psi, (7.5 bar). Maximum... [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 110.0
- Liquid Flow: 0.6000
- Power Source: 115 VAC, 230V to 460V, Three Phase, 480V to 690V, Three Phase, 230 VAC; AC
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 110.0
- Liquid Flow: 0.1167 to 0.7000
- Discharge Size: 0.750
from Watson Marlow Pumps Group
Finally, a hose pump to handle tough hydrocarbons!. Petrochemicals, hydrocarbons, and oil based products were all beyond the reach of peristaltic pumps due to incompatibility with the rubber hose – UNTIL NOW!. As the world leader in hose pump technology, the research and development team at... [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 72.5
- Liquid Flow: 2.38
- Power Source: 115 VAC, 230V to 460V, Three Phase, 480V to 690V, Three Phase, 230 VAC; AC
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 218.0
- Liquid Flow: 1.5 to 8.8
- Discharge Size: 1.000
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 218.0
- Liquid Flow: 8.4 to 35.9
- Discharge Size: 1.500
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 218.0
- Liquid Flow: 19 to 58.5
- Discharge Size: 2.000
from Wanner Engineering, Inc.
Vector Peristaltic Pumps are designed specifically for... High viscosity fluids. Aggressive and corrosive fluids. High purity solutions. Abrasive fluids. Vector Series Peristaltic Pumps Set a New Standard for Tough Fluid Processing. Applications. Vector Peristaltic Pumps Features: Dry pump cavity. [See More]
- Pump Housing Material: Cast Iron
- Discharge Pressure: 218.0
- Liquid Flow: 46.2 to 136
- Discharge Size: 3.000