What are the opening hours?

Monday 7am - 5pm Tuesday 7am - 5pm Wednesday 7am - 5pm Thursday 7am - 5pm Friday 7am - 5pm

Liberty Supply

Name: Liberty Supply
Address: 13821 Industrial Park Boulevard, Minneapolis, MN, 55441, US
Telephone: +18444480880

Call Directions Website Contact the business

B2B distributor of commercial HVAC and industrial products for pumps and systems.

10/15/2026

Expansion tank or pressure tank? They may look similar, but they are designed for very different jobs.

An expansion tank manages the additional fluid volume created as temperature changes in a closed potable-water or hydronic system. A pressure tank stores pressurized water and helps reduce pump cycling in well-water and pressure-boosting systems.

In this updated article, we cover:

✔ How expansion tanks and pressure tanks function

✔ Where each tank is typically used

✔ How sizing criteria differ between the two

✔ What to verify when checking precharge and system pressure

✔ Why application should come before tank appearance or size

Choosing the correct tank starts with identifying the system and its purpose. From there, capacity, pressure, temperature, precharge, connection, and manufacturer requirements can be properly evaluated.

👉 Read the full article:

https://libertysupply.com/blogs/atoms-and-bits/expansion-tank-vs-pressure-tank

10/08/2026

Is an ECM the same thing as a variable-speed motor?

Not exactly. ECM describes the motor technology, while variable speed describes an operating capability. In HVAC systems, variable-speed operation can come from an ECM with integrated electronics or from an AC induction motor paired with a variable frequency drive (VFD).

In this updated article, we cover:

✔ How ECM motor technology works
✔ Constant-torque vs. variable-speed ECM operation
✔ How VFD-controlled AC induction motors manage speed
✔ Key differences between ECM and VFD control architectures
✔ What to verify before replacing an HVAC motor

Understanding these distinctions is especially important during motor selection and replacement. Horsepower, voltage, and physical dimensions alone do not establish compatibility - control inputs, programming, speed range, mounting, rotation, and OEM requirements can all matter.

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/ecm-vs-variable-speed-motor

10/01/2026

TEFC or ODP - which motor enclosure makes sense for the application?

In commercial HVAC systems, these two enclosure types manage cooling and environmental exposure differently. But choosing between them requires more than simply matching the acronym on an existing motor.

In this article, we cover:

✔ How TEFC and ODP motor enclosures differ
✔ How each design manages cooling airflow
✔ Where dust, moisture, and contamination affect the decision
✔ What environmental and operating ratings should be verified
✔ What to check before selecting or replacing an HVAC motor

TEFC construction generally provides greater separation between internal motor components and the surrounding environment, while ODP motors allow ambient air to pass through the motor for cooling.

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/tefc-vs-odp

09/24/2026

Can a Y-strainer protect downstream equipment without becoming a restriction itself?

The NIBCO F-721-A is designed to capture suspended solid debris before it reaches pumps, valves, heat exchangers, and other components. But proper strainer selection involves more than matching the nominal pipe size.

In this article, we cover:

✔ How the NIBCO F-721-A Y-strainer works
✔ How screen selection affects debris capture and hydraulic resistance
✔ How Cv can be used to evaluate pressure drop at operating flow
✔ Why clean and dirty screen conditions can affect system performance
✔ What to verify when selecting or replacing an F-721-A

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/how-the-f-721-a-nibco-y-strainer-enhances-water-system-performance

09/17/2026

A Circuit Setter is a type of calibrated manual balancing valve, but it represents only one approach to balancing and controlling flow in hydronic and plumbing systems.
Understanding that distinction matters when replacing a valve for commissioning, flow verification, or changing system conditions.

In this updated article, we cover:

✔ How Circuit Setters establish and verify design flow
✔ How manual, fixed-orifice, automatic, and pressure-independent balancing methods differ
✔ When a Circuit Setter may be appropriate for a system
✔ What changes when differential pressure varies during operation

The key is to match the balancing method to the system’s hydraulic requirements.

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/circuit-setter-vs-balancing-valve

09/11/2026

25 years and counting. We will never forget.

09/10/2026

What actually determines whether a damper actuator is right for the application?

A damper actuator provides the force and motion needed to position damper blades, but selecting one involves more than matching the shaft or physical size. Torque, control signal, power supply, fail-safe behavior, mounting, and the damper's actual application all matter.

In this updated article, we cover:

✔ How damper actuators work and control damper position
✔ Electric, pneumatic, and hydraulic actuator designs
✔ Two-position, floating, and modulating control types
✔ Spring-return versus non-spring-return operation
✔ What to verify when replacing an actuator

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/what-is-a-damper-actuator

09/07/2026

Today, we recognize the hard work behind every job well done.

To the customers, contractors, technicians, engineers, facility teams, warehouse crews, and professionals across our industry - thank you for what you do.

09/03/2026

What exactly makes a fan a “squirrel cage” type?

Common in furnaces, air handlers, rooftop units, and other HVAC equipment, squirrel cage blowers are centrifugal fans designed to move air through ductwork, filters, coils, and other systems.

In this updated article, we cover:

✔ How a squirrel cage blower moves air
✔ Where these fans are commonly used
✔ How squirrel cage and axial fans differ
✔ Why static pressure affects blower performance
✔ What to verify before replacing a blower wheel, motor, or assembly

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/squirrel-cage-fan

08/27/2026

Taco CI Series pumps are close-coupled end-suction centrifugal pumps used across commercial hydronic systems.

In this article, we cover:

✔ How the Taco CI Series close-coupled design works
✔ Key features that support installation and serviceability
✔ Why the family performance range should not be used for final selection
✔ What to verify when selecting or replacing a CI pump
✔ How CI compares with Taco FI, SCI, and SFI end-suction families

👉 Read the full article: https://libertysupply.com/blogs/atoms-and-bits/taco-ci-series-pumps-selection-features-applications

Address

13821 Industrial Park Boulevard
Minneapolis, MN
55441

Opening Hours

Monday	7am - 5pm
Tuesday	7am - 5pm
Wednesday	7am - 5pm
Thursday	7am - 5pm
Friday	7am - 5pm

Telephone

+18444480880

Website

http://libertysupply.com/

Alerts

Be the first to know and let us send you an email when Liberty Supply posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Liberty Supply:

HIGHLIGHT PRINTING
3839 Washington Avenue N

Want your business to be the top-listed business in Minneapolis?