Product Name: Stainless Steel High Pressure Reducer Tee
Product Type: Forged Socket Weld / Threaded Reducer Tee
Size Range: 1/8" (DN6) – 4" (DN100)
Pressure Rating: ASME Class 3000 / 6000 / 9000
Connection Form: Socket Welding (SW) / Threaded (NPT, BSP as required)
Manufacturing Process: Cutting, Heat Treatment, Die Forging / Free Forging, CNC Machining
Surface Treatment: Sand Blasting, Cold & Hot Dip Galvanized (as required)
Manufacturing Standards: ASME B16.11, BS 3799, JIS B2316, GB/T 14383, SH 3410, HG/T 21634
Inspection: Dimensional Inspection, PMI, UT, MT (as required)
Stainless steel high pressure reducer tees are forged fittings designed to combine or divide flow in high-pressure piping systems. They allow smooth flow transitions between different diameters while maintaining mechanical strength and pressure integrity.
Manufactured to ASME B16.11 and other international standards, these reducer tees are widely used in oil & gas, chemical processing, power generation, and industrial pipelines requiring reliable, high-pressure performance.
Precise diameter reduction for high-pressure systems
High-strength forged construction for durability and safety
Compact socket weld or threaded connection for ease of installation
Reduces leakage risk compared with other connection types
Suitable for corrosive, high-temperature, and critical industrial environments
| Specification | Nominal Size | Total Height (mm) | Outer Diameter OD (mm) | Socket Inside Diameter S (mm) | Socket Inner Diameter S1 (mm) | Through Hole Bore D (mm) | Through Hole Diameter D1 (mm) | Socket Depth C (mm) | Socket Depth C1 (mm) | Center to Socket Bottom G (mm) | Large Diameter Wall Thickness (mm) | Minor Wall Thickness (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15×8 | 1/2×1/4 | 50 | 33 | 22.3 | 14.5 | 15 | 8.5 | 9.5 | 9.5 | 15.5 | 5.4 | 9.3 | 0.4 |
| 15×10 | 1/2×3/8 | 50 | 33 | 22.3 | 18 | 15 | 11.8 | 9.5 | 9.5 | 15.5 | 5.4 | 7.5 | 0.4 |
| 20×10 | 3/4×3/8 | 63 | 38 | 27.5 | 18 | 20.2 | 11.8 | 12.5 | 9.5 | 19 | 5.3 | 10.0 | 0.5 |
| 20×15 | 3/4×1/2 | 63 | 38 | 27.5 | 22.3 | 20.2 | 15 | 12.5 | 9.5 | 19 | 5.3 | 7.9 | 0.5 |
| 25×15 | 1×1/2 | 70 | 46 | 34.5 | 22.3 | 25.9 | 15 | 12.5 | 9.5 | 22.5 | 5.8 | 11.9 | 0.7 |
| 25×20 | 1×3/4 | 70 | 46 | 34.5 | 27.5 | 25.9 | 9.8 | 12.5 | 12.5 | 22.5 | 5.8 | 9.3 | 0.7 |
| 32×15 | 1-1/4×1/2 | 79 | 57 | 42.7 | 22.3 | 34.3 | 15 | 12.5 | 9.5 | 27 | 7.2 | 17.4 | 1.2 |
| 32×20 | 1-1/4×3/4 | 79 | 57 | 42.7 | 27.5 | 34.3 | 20.2 | 12.5 | 12.5 | 27 | 7.2 | 14.8 | 1.1 |
| 32×25 | 1-1/4×1 | 79 | 57 | 42.7 | 34.5 | 34.3 | 25.9 | 12.5 | 12.5 | 27 | 7.2 | 11.3 | 1.1 |
| 40×15 | 1-1/2×1/2 | 89 | 63 | 48.8 | 22.3 | 40.1 | 15 | 12.5 | 9.5 | 32 | 7.1 | 20.4 | 1.5 |
| 40×20 | 1-1/2×3/4 | 89 | 63 | 48.8 | 27.5 | 40.1 | 20.2 | 12.5 | 12.5 | 32 | 7.1 | 17.8 | 1.4 |
| 40×25 | 1-1/2×1 | 89 | 63 | 48.8 | 34.5 | 40.1 | 25.9 | 12.5 | 12.5 | 32 | 7.1 | 14.3 | 1.3 |
| 40×32 | 1-1/2×1-1/4 | 89 | 63 | 48.8 | 42.7 | 40.1 | 34.3 | 12.5 | 12.5 | 32 | 7.1 | 10.2 | 1.2 |
| 50×15 | 2×1/2 | 108 | 76 | 60.8 | 22.3 | 51.7 | 15 | 16 | 9.5 | 38 | 7.6 | 26.9 | 2.4 |
| 50×20 | 2×3/4 | 108 | 76 | 60.8 | 27.5 | 51.7 | 20.2 | 16 | 12.5 | 38 | 7.6 | 24.3 | 2.3 |
| 50×25 | 2×1 | 108 | 76 | 60.8 | 34.5 | 51.7 | 25.9 | 16 | 12.5 | 38 | 7.6 | 20.8 | 2.2 |
| 50×32 | 2×1-1/4 | 108 | 76 | 60.8 | 42.7 | 51.7 | 34.3 | 16 | 12.5 | 38 | 7.6 | 16.7 | 2.1 |
| 50×40 | 2×1-1/2 | 108 | 76 | 60.8 | 48.8 | 51.7 | 40.1 | 16 | 12.5 | 38 | 7.6 | 13.6 | 2.0 |
All dimensions conform to ASME B16.11 and related international standards. Custom dimensions are available upon request.
Reducer tees cover sizes from DN6 to DN100 (1/8"–4"), with precise dimensional control to ensure correct socket depth, proper alignment, and safe operation. The reducer tee dimensions include:
Socket inside diameter (S / S1)
Through hole bore (D / D1)
Socket depth (C / C1)
Center-to-socket bottom (G)
Large diameter wall thickness / Minor wall thickness
Total height and outer diameter
Detailed dimensional table can be included for engineering reference.
Stainless steel high pressure reducer tees comply with major international standards and are compatible with global EPC projects:
ASME: B16.11
BS: 3799
JIS: B2316
GB/T: 14383
SH: 3410
HG/T: 21634
Reducer tees are available in a wide range of materials for different service conditions:
ASTM / ASME A105, ASME A350 LF2–LF6
20#, Q235, Q345
ASTM F304, F304L, F316, F316L
ASTM A182 F51, F53, F55
S31803, S22253, S32205, S22053
ASTM F5, F9, F11, F22, F91
ASTM / ASME SB466 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30)
ASTM / ASME SB336, SB564, SB160, SB163, SB472
UNS N02200 (Nickel200), N02201 (Nickel201)
UNS N04400 (Monel400)
UNS N08825 (Inconel825), N06600 (Inconel600), N06601 (Inconel601), N06625 (Inconel625)
UNS N10276 (Hastelloy C276)
All materials come with Mill Test Certificates (MTC) and full traceability.
Raw material inspection
Cutting and billet preparation
Die forging or free forging
Heat treatment
CNC precision machining
Surface finishing
Dimensional inspection & NDT
Ensures excellent mechanical strength, dimensional accuracy, and long-term reliability.
Each high pressure reducer tee undergoes:
Dimensional inspection
Chemical composition analysis
PMI testing
Ultrasonic Testing (UT)
Magnetic Particle Testing (MT)
To meet all international standards and client project requirements.
High-pressure oil & gas pipelines
Chemical and petrochemical systems
Power plant piping systems
Hydraulic and instrumentation pipelines
Offshore and marine industrial systems
Wide range of sizes (DN6–DN100)
Pressure ratings up to Class 9000
Multiple materials including stainless, duplex, and nickel alloys
Strict compliance with ASME, BS, JIS, and GB standards
Forged and machined for precise socket weld / threaded connections
