AR45BP LOW-PRESSURE DIAPHRAGM PUMP, 43 L/MIN, 20 BAR

The AR45BP C low-pressure diaphragm pump is a 3-diaphragm pump designed to replace a unit with this part number. It is distinguished by its external ports, its 1 3/8" non-through shaft, a rated flow rate of 43 l/min, and a pressure of 20 bar. Polypropylene is also a useful identifier for confirming this part number.

A low-pressure pump identified by its key characteristics

Within the family of low-pressure diaphragm pumps, selection is based primarily on specific installation and operating criteria. Here, the model designation AR45BP C corresponds to a specific configuration: 3 diaphragms, external ports, and a 1"3/8 non-through shaft. These elements help you find a pump equivalent to the one already installed on your equipment, without limiting you to a single brand name.

Flow rate and pressure are equally important to ensure consistency with the original installation. With a flow rate of 43 l/min and a pressure of 20 bar, this pump is designed for low-pressure applications; be sure to compare these specifications with your existing system before replacement.

Technical Specifications of the AR45BP C Pump

• Type: 3-diaphragm pump
• Configuration: external ports
• Shaft: 1 3/8" non-through
• Flow rate: 43 l/min
• Pressure: 20 bar
• Material: polypropylene

This combination of features distinguishes this pump from similar models that may use similar technology but have a different shaft, a different port layout, or different hydraulic specifications.

Mounting reference points to check before replacement

The 1 3/8-inch non-through shaft is one of the first things to check, as it determines how the pump will be driven in your setup. Similarly, the presenceof external ports affects the layout of the connections on the existing system. If you are replacing an existing pump, visually compare these features with your removed unit.

The polypropylene housing can also help confirm the correct part number when several low-pressure diaphragm pumps look similar. This material is part of the model’s identification and complements the main selection criteria.

Choosing the Correct AR45BP C Model

To select the correct pump, always cross-reference the AR45BP C designation with the most distinguishing technical data: number of diaphragms, shaft type, port layout, flow rate, and pressure. If no other connection details are provided in the available information, comparing it with the pump installed on your machine remains the surest way to rule out a similar variant.

If you’re looking to replace a low-pressure AR45BP C diaphragm pump, compare these specifications with your existing unit to confirm the part number that’s compatible with your setup.

FAQ — Frequently Asked Questions

How can I identify the correct AR45BP C pump before ordering?

Correct identification is based first and foremost on the AR45BP C model number. Next, check the visible features of your current pump: 3-diaphragm configuration, external ports, 1 3/8" non-through shaft, 43 l/min flow rate, and 20 bar pressure. This set of identifying features helps prevent confusion with a similar model.

What does the 1"3/8 non-through shaft on this pump mean?

This refers to the type of drive shaft mounted on the pump. When replacing the pump, this dimension and configuration must match your existing setup to ensure the correct coupling and drive-side clearance. The term “non-through” indicates that the shaft does not pass completely through the pump.

What is the purpose of the 3-diaphragm configuration on this model?

A 3-diaphragm pump belongs to a family of pumps used to move liquid at low pressure. For this model, the number of diaphragms is primarily a useful identification criterion, along with flow rate, pressure, and shaft type. It helps distinguish this pump from other variants in the same series.

Why is it necessary to check the external ports before replacement?

The external ports determine how the pump connects to the existing system. Even if their dimensions are not specified here, their layout is one of the key points to check, along with the shaft type. Compare the pump installed on your machine to confirm that the configuration matches your system.

The original replacement part numbers and brands are provided for comparison purposes only. This does not imply that these are original parts.