Description
Bell & Gossett 115115 Centrifugal Pump Suction Diffuser Plus Overview
The Bell & Gossett 115115 Suction Diffuser Plus is a premium pump accessory engineered to optimize the performance and longevity of centrifugal pumps in hydronic heating and cooling systems. By combining multiple system components into a single compact unit, this suction diffuser simplifies installation, reduces piping complexity, and ensures balanced, turbulence-free flow entering the pump suction port.
Key Features
- 2-1/2″ NPT system-side connection x 2″ NPT pump-side connection for versatile installation
- Durable cast iron body construction for long-lasting performance in demanding hydronic applications
- Steel inlet vanes and orifice cylinder provide smooth, straightened flow to the pump impeller
- Includes 16-mesh bronze start-up strainer to capture debris and protect pump components during initial system commissioning
- Rated for operating temperatures up to 250°F, suitable for high-temperature hydronic systems
- Eliminates the need for separate elbows, reducers, and strainers — reducing installed cost and potential leak points
- Designed for use with Bell & Gossett and compatible centrifugal circulator pumps
Product Specifications
- SKU: 115115
- Brand: Bell & Gossett
- System Side Connection: 2-1/2″ NPT
- Pump Side Connection: 2″ NPT
- Body Material: Cast Iron
- Inlet Vanes & Orifice Cylinder: Steel
- Start-Up Strainer: 16-Mesh Bronze
- Maximum Operating Temperature: 250°F
- Type: Centrifugal Pump Suction Diffuser Plus
Application
Ideal for commercial and industrial hydronic heating and cooling systems where pump protection and hydraulic efficiency are critical. The suction diffuser straightens flow entering the pump, reducing cavitation risk and extending pump service life. The included bronze start-up strainer catches pipe scale, weld slag, and other construction debris during system start-up — protecting the pump from damage before the system is fully flushed and cleaned.
Why Choose the Bell & Gossett 115115?
Bell & Gossett is a trusted name in hydronic system components, and the 115115 Suction Diffuser Plus reflects that legacy of quality. Its all-in-one design reduces installation time and labor costs while delivering reliable, long-term pump protection in systems operating at temperatures up to 250°F.
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