Taco 006-ST4 3/4" (Threaded): Stainless Steel Circulator, 1/40 HP
Taco 006-ST4 3/4" (Threaded): Stainless Steel Circulator, 1/40 HP
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Efficient Circulation for Hydronic Systems With the Taco 006-ST4 Circulator Pump
Keep water moving efficiently through lower-flow hydronic heating and hot water systems with a compact circulator built for reliable everyday performance. The Taco 006-ST4 (006-ST4) is a 1/40 HP stainless steel circulator designed for circulating hot or chilled fresh water in open or closed-loop applications. Its replaceable cartridge contains all of the moving parts for straightforward service, while the self-lubricating design eliminates routine maintenance. Compact and low-power, it's an efficient choice for residential hydronic heating, domestic hot water recirculation, and other lower-flow applications.
Key Features
Efficient Low-Flow Circulation
The 006 is designed for applications that don't require a large circulator, providing dependable water movement while using only 1/40 HP. Its compact, low-power design makes it well suited to high-efficiency systems.
Stainless Steel Construction
The stainless steel casing provides durable, corrosion-resistant performance for hot and chilled fresh water applications. It's a practical choice for systems where material compatibility matters.
Easy Cartridge Replacement
The replaceable cartridge contains all of the pump's moving parts, so the circulator can be serviced without replacing the entire assembly. This makes future maintenance faster and more economical.
Quiet, Maintenance-Free Design
The direct-drive motor operates quietly and efficiently, while the self-lubricating design and lack of a mechanical seal eliminate routine lubrication and seal maintenance.
Product Details
- Designed for hot or chilled fresh water in open and closed-loop systems
- Low 1/40 HP power consumption supports efficient system operation
- Up to 11 GPM flow handles lower-flow circulation applications
- Stainless steel construction provides durable corrosion resistance
- Replaceable cartridge makes field service simple and cost-effective
- Self-lubricating design eliminates routine lubrication
- No mechanical seal means fewer components to maintain
- Compact design fits easily into space-conscious installations
- Suitable for hydronic heating, domestic hot water recirculation, and other fresh water applications
- 3-year manufacturer warranty
For over 100 years, TACO has been innovating hydronic heating, cooling, and plumbing solutions, offering high-efficiency pumps, boiler accessories, and pipe fittings.
Additional Information
- Brand: TACO
- MPN: 006-ST4
- Series: 00 Series
- Product Type: Stainless steel cartridge circulator pump
- Application: Hydronic heating, domestic hot water recirculation, hydro-air heating/cooling, heat recovery, and other fresh water applications
- Material: Stainless steel
- Horsepower: 1/40 HP
- Flow Range: 0-11 GPM
- Head Range: 0-9 ft.
- Connection: 3/4" NPT
- Electrical: 115V, 60 Hz, 1 Phase
- Maximum Working Pressure: 125 PSI
Check out our Recirculation Pumps Guide to understand how these systems work, compare different types, and find the right solution for your application.
Taco 006-ST4 FAQ
How do I know if the Taco 006-ST4 is the right size circulator?
The 006-ST4 should be selected based on the system's required flow rate and head loss rather than horsepower alone. It provides up to 11 GPM and 9 feet of head, making it better suited to lower-flow systems than larger Taco circulators.
If you have questions or need help choosing a circulator, then the Plumbing Deals team can help! Use the live chat feature, email at contact@plumbingdeals.com, or give us a call at 888-682-5956!
Can the Taco 006-ST4 be used for domestic hot water recirculation?
Yes, the Taco 006-ST4 can be used for domestic hot water recirculation when the application is compatible with its stainless steel construction and performance range. Its low-flow capacity makes it a practical option for smaller hot water circulation systems.
What is the difference between the Taco 006-ST4 and a larger Taco circulator?
The main difference is the amount of flow and head the pump can provide. The 006-ST4 is intended for lower-flow applications, with a maximum of 11 GPM and 9 feet of head, while larger Taco circulators are designed to overcome greater system resistance or move more water.
Why does the Taco 006-ST4 use a stainless steel casing?
The stainless steel casing provides corrosion-resistant construction for circulating fresh water in both hydronic and domestic water applications. This makes the stainless version particularly useful where stainless steel is preferred for the wetted components.
How does the replaceable cartridge make the Taco 006-ST4 easier to service?
The replaceable cartridge contains all of the circulator's moving parts, allowing the pump to be rebuilt by replacing the cartridge rather than replacing the complete circulator. This can simplify field service and reduce replacement costs.
| Weight | 5.0 lb |
|---|---|
| Height | in. |
| Horse Power | 1/3 |
| Length | in. |
| Room | Utility |
| Width | in. |
| Inventory Number | TAC006ST4 |
| MPN | 006-ST4 |
