Taco 0015-MSF3-IFC 3-Speed Cast Iron Circulator with Integral Flow Check Valve (115V, 1/20 HP)
The Taco 0015-MSF3-IFC is a 3-speed, cast iron circulator pump built for hydronic heating systems that demand performance, reliability, and flexibility. Featuring an Integral Flow Check (IFC) for efficient operation and prevention of gravity flow, this pump is engineered for quiet, maintenance-free performance and long service life.
⚠️ Note: Flanges are not included — must be purchased separately.
✅ Key Features
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✅ 3-Speed Switch allows precise system tuning
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✅ Integral Flow Check (IFC) prevents unwanted gravity flow
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✅ Highest starting torque in its class for reliable performance
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✅ Replaceable cartridge design simplifies service and extends life
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✅ Quiet, self-lubricating operation with no mechanical seal
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✅ Heavy-duty cast iron construction for long-term durability
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✅ Universal replacement for Grundfos UPS 15-58 3-speed circulator
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✅ Wide range of hydronic applications — baseboard, radiant, and zone systems
📊 Specifications
| Parameter | Detail |
|---|
| Model |
0015-MSF3-IFC |
| Manufacturer |
Taco |
| Horsepower |
1/20 HP |
| Voltage |
115V |
| Frequency |
60 Hz |
| Phase |
1 |
| RPM |
3250 |
| Amperage |
0.54 – 0.85 A |
| Flow Range (GPM) |
0 – 18 |
| Max Flow (GPM) |
18 |
| Head Range (ft) |
0 – 17 |
| Max Head (ft) |
17 |
| Max Pressure |
125 PSI |
| Max Water Temperature |
230°F (110°C) |
| Body Material |
Cast Iron |
| Type |
3-Speed Circulator with IFC |
| Connection Sizes |
3/4", 1", 1-1/4", 1-1/2" (flanges sold separately) |
| Flanges Included |
❌ No – must purchase separately |
🔁 Cross Reference Table
| Manufacturer | Part Number | Notes |
|---|
| Taco |
0015-MSF2-IFC |
Replaced by this model |
| Taco |
00R-MSF2-IFC |
Replaced by this model |
| Taco |
00R-MSF1-IFC |
Replaced by this model |
| Taco |
00R-F6-1IFC |
Replaced by this model |
| Taco |
00R-MSF1-4IFC |
Replaced by this model |
| Taco |
00R-F6-4IFC |
Replaced by this model |
| Grundfos |
UPS 15-58 3-Speed |
Direct performance replacement |
🧩 Replacement Parts List
| Part | Part Number |
|---|
| Casing O-Ring |
00R-001RP |
| Flange Gasket Set |
007-007RP |
| Capacitor or PC Board |
007-002RP |
| Cartridge Assembly Complete |
00R-005RP |
| Valve Assembly Trans/Relay |
0010-025RP |
⚠️ Common Symptoms of a Failing Circulator Pump
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Uneven or no heat in zones
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Unusual humming or grinding noise
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Leaking from pump housing or seal area
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Overheating motor or tripped breaker
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System air noises or poor flow circulation
❓ Frequently Asked Questions (FAQ)
Q: Does this circulator include the flanges?
A: No — flanges must be purchased separately.
Q: What’s the advantage of the 3-speed feature?
A: It allows you to fine-tune the pump’s flow rate and head for optimal performance and energy efficiency in different system configurations.
Q: Can this replace the Grundfos UPS 15-58?
A: Yes, the Taco 0015-MSF3-IFC is a direct performance replacement for the Grundfos UPS 15-58 3-speed circulator.
Q: Is the Integral Flow Check (IFC) removable?
A: Yes, the IFC is a removable, high-flow design that improves system efficiency and reduces gravity flow.
Q: What types of systems is it best for?
A: Perfect for residential hydronic heating systems, including baseboard, radiant, and zone circulation setups.
🛒 Shopping Tips
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🔧 Confirm flange size before ordering (sold separately).
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🔁 Replace older Taco 0015 or 00R models with this updated unit for better performance.
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🧰 Consider purchasing replacement cartridges and other parts from the list above for easier long-term maintenance.
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🌡️ Ensure system water quality is maintained to prevent corrosion and extend lifespan.
