Taco SD025020-5 - 2-1/2 x 2 Suction Diffuser - SD025020-5
The Taco SD025020-5 is a suction diffuser designed for efficient fluid management. It has a two and a half inch system by two inch pump flanged connection. The product features integral cast straightening vanes, an oversized body cylinder, and a fine mesh start-up strainer for effective filtration. Constructed from ductile iron, it can handle a maximum pressure of one hundred seventy-five psi and a maximum temperature of two hundred fifty degrees Fahrenheit.
Features
- Designed with integral cast straightening vanes.
- Includes a disposable fine mesh start-up strainer.
- Manufactured from durable ductile iron.
Specifications
| Model |
RSP |
| Weight |
35.00 lbs |
| Maximum Operating Pressure |
175 psi |
| Maximum Operating Temperature |
250°F |
What our Experts Think
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Enhances Pump Efficiency
Built-in flow-straightening vanes help reduce turbulence and improve pump suction performance—ideal where straight pipe runs are limited.
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Sized for Common Installations
Features a 2½″ system inlet and 2″ pump outlet, making it compatible with many standard commercial HVAC and hydronic setups.
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Durable for Demanding Systems
Constructed from robust ductile iron and typically rated for high pressure and temperature conditions—suited for heating, cooling, and glycol-based systems.
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Built-In Strainer for Protection
Includes a start-up strainer and easy-access cover, helping to capture debris and extend pump life with simplified maintenance.
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Space-Saving Solution
Eliminates the need for long straight pipe sections before the pump, making it perfect for tight mechanical rooms or retrofits.
Q&A
Q: What is the Taco SD025020-5 suction diffuser used for?
A: It is designed to condition and regulate fluid flow into a pump, helping reduce turbulence, protect the pump, and improve overall system efficiency.
Q: What are the connection sizes?
A: This model features a 2-1/2" inlet and a 2" outlet for compatibility with standard piping configurations.
Q: Does it include a strainer or screen?
A: Yes — it typically includes an internal stainless steel strainer screen to trap debris and prevent pump damage.
Q: Is the diffuser compact for tight installations?
A: Yes, it features a space-saving design that eliminates the need for a long straight pipe run before the pump inlet.
Q: What types of systems is it suitable for?
A: It is commonly used in commercial and industrial HVAC, hydronic heating, and chilled water pump applications.
Q: Why is a suction diffuser important?
A: It enhances pump performance, reduces wear, and helps maintain proper flow conditions at the pump suction.
Maintenance Tips
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Inspect and clean the inlet screen regularly to prevent debris buildup and ensure proper pump flow.
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Check gasket seals during maintenance to avoid leaks and maintain system pressure.
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Monitor for unusual vibration or noise, which may indicate clogging or misalignment.
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Flush the diffuser periodically as part of routine pump system maintenance to maintain peak efficiency.
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Tighten bolts and verify correct installation alignment to extend service life and ensure consistent performance.
