• Bell and Gossett DD-3X suction diffuser 115120 featuring a heavy-duty 3 inch flanged cast iron angle body in factory safety red.
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Bell & Gossett Suction Diffuser 3-Inch Flanged

Bell & Gossett Suction Diffuser 3-Inch Flanged

Brand: Bell & Gossett SKU: 1030
$681.10 USD
$681.10 USD
Sale Out of Stock - Call to Order
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  • LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
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Specification Parameter Official Factory Value
Model Designation DD-3X Suction Diffuser Plus Series
Inlet Size (System Side) 3" ANSI Flanged Port Connection
Outlet Size (Pump Side) 3" ANSI Flanged Port Connection
Maximum Operating Pressure 175 PSI Standard Rating Capacity
Maximum Process Temperature 250°F (121°C) Continuous Fluid Exposure
Internal Mesh Grid Profile 16-Mesh Bronze Temporary Start-Up Strainer
Gasket Compound High-Performance EPDM O-Ring Housing
Body Casting Material ASTM A48 Class 30 Cast Iron Construction

The Bell & Gossett DD-3X Suction Diffuser Plus (MPN 115120) is a premier, heavy-duty commercial angle-pattern fluid conditioning fitting designed to bolt directly onto a 3-inch pump suction port. Acting as a spacer-saving multi-functional node, this unit seamlessly replaces a conventional long-radius elbow, reducing pipe, and independent Y-strainer into a single, compact installation housing.

Advanced Flow Conditioning & Protection

Engineered with Bell & Gossett’s signature internal full-length straightening vanes, the DD-3X completely conditions turbulent fluid intake, delivering an entirely uniform, linear velocity profile directly into the pump impeller. This structural configuration safeguards the pump shaft from uneven wear, drastically reducing long-term bearing stress and maximizing Net Positive Suction Head (NPSH) parameters across demanding HVAC or industrial heating networks.

Engineered Facility Benefits

  • Intelligent Two-Stage Strainer: Equipped with a large-diameter carbon steel orifice cylinder for continuous heavy sediment extraction, paired with a disposable 16-mesh bronze start-up strainer to capture microscopic installation debris during initial system flushing cycles.
  • Integrity Inspection Ports: Optional plug settings and integrated pressure/temperature ports allow maintenance engineers to verify internal pressure differentials and ensure the start-up strainer has been completely cleared without disassembling the piping architecture.
  • Rugged Material Footprint: Constructed from a robust ASTM A48 cast iron frame with an EPDM O-ring seal, built to handle continuous vibration and deep thermal variations flawlessly.

Looking for exact pressure drop curves or flanged bolt dimensions? Click here to request the official factory submittal manuals from our engineering desk.

Product Documents