Taco PAX170-150 - 45 Gal Potable Water Expansion Bladder Tank - PAX170-150
The Taco PAX170-150 is a bladder expansion tank designed for potable water applications. It has a capacity of forty-five gallons and is constructed with a carbon steel shell. The tank features a three-quarter inch NPT system connection and a one-half inch NPT pipe connection, accommodating pressure levels up to one hundred fifty PSI. This design enables reliable separation of air and water, ensuring safety and efficiency in your system.
Features
- Includes a removable heavy-duty butyl rubber bladder.
- Factory pre-charged to ensure proper function.
- Constructed per ASME Section VIII Division 1 standards.
Specifications
| MPN |
PAX170-150 |
| Weight |
240 lbs |
| Acceptance Volume |
45 gallons |
| Connection Size |
3/4 inch |
| Connection Type |
NPT |
What our Experts Think
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Designed for Potable Water Systems
The Taco PAX170-150 is a 45-gallon bladder expansion tank specifically engineered for potable water applications, ensuring compliance with NSF/ANSI 61-G standards for drinking water safety.
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Robust Construction
Crafted with a carbon steel shell and epoxy coating, this tank is designed to withstand pressures up to 150 PSIG, adhering to ASME Section VIII, Division 1 standards for durability and safety.
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Efficient Pressure Management
Equipped with a heavy-duty butyl rubber bladder, it effectively separates air and water, allowing for controlled thermal expansion and maintaining consistent system pressure.
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Pre-Charged for Convenience
Factory pre-charged to 40 PSIG, the PAX170-150 is ready for installation, reducing setup time and ensuring optimal performance from the outset.
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Vertical Installation Recommended
For optimal performance, vertical installation is recommended, ensuring proper bladder alignment and efficient operation.
Q&A
Q: What is the Taco PAX170-150 used for?
A: It is a potable water expansion bladder tank designed to absorb excess pressure in domestic water heating systems, protecting plumbing and fixtures.
Q: What is the capacity of this tank?
A: The tank has a 45-gallon capacity, suitable for medium to large residential water systems.
Q: Is it suitable for potable (drinking) water?
A: Yes — it is certified for potable water applications, ensuring safe contact with drinking water.
Q: How does a bladder tank work?
A: The internal bladder separates air from water, allowing the tank to absorb pressure changes and reduce stress on pipes and water heaters.
Q: What material is it made from?
A: Constructed from durable steel with a corrosion-resistant coating and a high-quality internal bladder for long-term reliability.
Q: Where is it installed?
A: Typically installed in residential or light commercial water heating systems, near the water heater, to maintain system pressure and prevent water hammer.
Maintenance Tips
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Check the tank’s air charge pressure every 6–12 months and adjust to match system requirements.
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Inspect the bladder for leaks or signs of wear to prevent waterlogging and maintain efficiency.
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Flush the tank periodically to remove sediment that can reduce capacity and lifespan.
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Ensure all connections are tight and free from corrosion to avoid leaks.
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Schedule professional inspection if the tank shows reduced performance or unusual noises.
