Three-quarter view of a stainless steel reducing branch tee, clearly showing two larger main run ports and one smaller branch outlet.
Front-facing view looking into one of the larger main run ports of the tee.
Close-up view looking directly into the smaller diameter branch outlet of the tee.
Side view of the reducing tee, with the smaller branch outlet positioned perpendicularly between the two larger main run ends.
Two identical stainless steel reducing branch tees placed side-by-side on a white background.
Two reducing tees positioned at staggered angles, illustrating their potential application in a piping layout.

Stainless Steel Double Press-Fit Reducing Outlet Tee (Branch Smaller than Run)

Category Tag

  • Precision Flow Reduction at the Branch: Designed to create a reliable branch line with a smaller diameter than the main pipeline, enabling controlled take-offs for fixtures, equipment, or zone-specific distribution.

  • Engineered for System Optimization: Allows designers to step down pipe size directly at the branch point, saving space, reducing material costs, and maintaining optimal pressure in the main run.

  • Triple-Seal Reliability: All three ports utilize the double press-fit O-ring sealing method, ensuring a leak-proof connection at the critical junction of different diameters.

  • Individually Validated: Every reducing tee undergoes a factory hydrostatic test above 1.05 MPa, guaranteeing the integrity of its unique multi-diameter design.

  • Full Standard Compliance: Manufactured from 304/316L stainless steel in accordance with GB/T 19228 and ISO 15835, suitable for potable water and HVAC systems.

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Engineered for Controlled Distribution and System Efficiency

The Stainless Steel Double Press-Fit Reducing Outlet Tee is a specialized fitting designed for intelligent system design where a branch line requires a smaller diameter than the main supply run. As a key component in our Double Press-Fit System Overview, this fitting solves a common engineering challenge: how to efficiently and reliably create a smaller take-off point without requiring additional adapters or reducers downstream.

 

The Strategic Advantage of a Reducing Branch Tee

Incorporating a dedicated reducing tee offers significant design and operational benefits over using a standard tee with separate reducers:

  • Space and Cost Efficiency: Eliminates the need for an extra fitting and additional joints, saving space in congested chases and reducing overall installed cost.

  • Optimized Hydraulic Performance: Maintains designed pressure and flow velocity in the main line while providing a correctly sized branch connection, preventing pressure imbalances.

  • Simplified Installation: Provides a single, pre-engineered solution for a common piping transition, reducing installation time and potential error points.

 

Robust Construction at a Critical Junction

The transition between different diameters is a focal point for stress. This reducing tee is engineered to manage this seamlessly:

  • Reinforced Design: The body geometry is reinforced at the branch junction to handle differential pressures and thermal stresses.

  • Consistent Sealing Technology: Despite the diameter change, every port—large or small—employs the same precision O-ring and double-press sealing process. This ensures uniform, [Internal Link: System Pressure & Performance Testing] certified reliability across all connections.

 

Cross-section Diagram

Cross-sectional diagram of a reducing branch tee, showing larger main run openings and a smaller branch outlet, with O-ring grooves visible at all three ports.
Engineered Transition: Cutaway view reveals consistent O-ring sealing technology applied to both large and small diameter connections within a single fitting.

Uncompromised Quality for Specialized Applications

  • Material & Standards: Constructed from premium 304, 304L, 316, or 316L stainless steel. Manufactured in full compliance with GB/T 19228.1 and ISO 15835.

  • Rigorous Validation: Each fitting is subject to the same stringent testing regimen as standard tees, including individual pressure tests (>1.05 MPa) and material verification (Tensile Strength ≥520 MPa).

Specification Table

Model Nominal Diameter Dimensions(mm) Dimensions(inch)
SKT20*15 DN20*15 20*16 0.787*0.630
SKT25*15 DN25*15 25.4*16 1.000*0.630
SKT25*20 DN25*20 25.4*20 1.000*0.787
SKT32*15 DN32*15 32*16 1.260*0.630
SKT32*20 DN32*20 32*20 1.260*0.787
SKT32*25 DN32*25 32*25.4 1.260*1.000
SKT40*15 DN40*15 40*16 1.575*0.630
SKT40*20 DN40*20 40*20 1.575*0.787
SKT40*15 DN40*15 40*16 1.575*0.630
SKT40*25 DN40*25 40*25.4 1.575*1.000
SKT40*32 DN40*32 40*32 1.575*1.260
SKT50*15 DN50*15 50.8*16 2.000*0.630
SKT50*20 DN50*20 50.8*20 2.000*0.787
SKT50*25 DN50*25 50.8*25.4 2.000*1.000
SKT50*32 DN50*32 50.8*32 2.000*1.260
SKT50*40 DN50*40 50.8*40 2.000*1.575
SKT60*15 DN60*15 63.5*16 2.500*0.630
SKT60*20 DN60*20 63.5*20 2.500*0.787
SKT60*25 DN60*25 63.5*25.4 2.500*1.000
SKT60*32 DN60*32 63.5*32 2.500*1.260
SKT60*40 DN60*40 63.5*40 2.500*1.575
SKT60*50 DN60*50 63.5*50.8 2.500*2.000
SKT65*15 DN65*15 76.1*16 3.000*0.630
SKT65*20 DN65*20 76.1*20 3.000*0.787
SKT65*25 DN65*25 76.1*25.4 3.000*1.000
SKT65*32 DN65*32 76.1*32 3.000*1.265
SKT65*40 DN65*40 76.1*40 3.000*1.575
SKT65*50 DN65*50 76.1*50.8 3.000*2.000
SKT65*60 DN65*60 76.1*63.5 3.000*2.500
SKT80*15 DN80*15 88.9*16 3.500*0.630
SKT80*20 DN80*20 88.9*20 3.500*0.787
SKT80*25 DN80*25 88.9*25.4 3.500*1.000
SKT80*32 DN80*32 88.9*32 3.500*1.280
SKT80*40 DN80*40 88.9*40 3.500*1.575
SKT80*50 DN80*50 88.9*50.8 3.500*2.000
SKT80*65 DN80*65 88.9*76.1 3.500*3.000
SKT100*15 DN100*15 101.6*16 4.000*0.630
SKT100*20 DN100*20 101.6*20 4.000*0.787
SKT100*25 DN100*25 101.6*25.4 4.000*1.000
SKT100*32 DN100*32 101.6*32 4.000*1.2100
SKT100*40 DN100*40 101.6*40 4.000*1.575
SKT100*50 DN100*50 101.6*50.8 4.000*2.000
SKT100*65 DN100*65 101.6*76.1 4.000*3.000
SKT100*80 DN100*80 101.6*88.9 4.000*3.500
SKT125*80 DN125*80 133.3*88.9 5.250*3.500
SKT125*100 DN125*100 133.3*101.6 5.250*4.000
SKT150*100 DN150*100 159*101.6 6.250*4.000
SKT150*125 DN150*125 159*133.3 6.250*5.250
SKT200*125 DN200*125 219*133.3 8.625*5.250
SKT200*150 DN200*150 219*159 8.625*6.250

 

Primary Applications

  • Creating smaller branch lines for individual fixtures (sinks, toilets) from larger main supply risers in buildings.

  • Tapping off a main process line for a sampling point or a smaller auxiliary system.

  • HVAC systems where zone control requires reduced flow to specific coils or units.

  • Potable water systems requiring optimized pipe sizing for different flow demands.

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