Product Name: Stainless Steel High Pressure Socket Welding Reducer Hoop
Product Type: Forged Socket Weld / Threaded Reducer Hoop
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 socket welding reducer hoops are forged fittings designed to connect pipes of different diameters in high-pressure piping systems. They provide secure socket weld or threaded connections, precise alignment, and excellent pressure resistance.
Manufactured to ASME B16.11 and other international standards, these reducer hoops are widely used in oil & gas, chemical, power generation, and industrial pipelines requiring reliable high-pressure performance.
Forged construction ensures high mechanical strength and durability
Suitable for Class 3000, 6000, 9000 high-pressure systems
Compact socket weld or threaded connection for easy installation
Reduces leakage risk compared to other connection types
Suitable for corrosive, high-temperature, and critical industrial environments
| Nominal Size | Inch | Socket Inside Diameter S (mm) | Socket Inside Diameter S1 (mm) | Through Hole Diameter D (mm) | Socket Depth C (mm) | Socket Depth C1 (mm) | Middle Through Hole E (mm) | Large Diameter Wall Thickness C (mm) | Minor Wall Thickness C1 (mm) | Outside Diameter O (mm) | Overall Length (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15×8 | 1/2×1/4 | 22.3 | 14.5 | 8.5 | 9.5 | 9.5 | 8 | 4.85 | 8.75 | 32 | 27 | 0.13 |
| 15×10 | 1/2×3/8 | 23.3 | 18 | 11.8 | 9.5 | 9.5 | 8 | 4.85 | 7 | 32 | 27 | 0.12 |
| 20×10 | 3/4×3/8 | 27.5 | 18 | 11.8 | 12.5 | 9.5 | 8 | 5.25 | 10 | 38 | 30 | 0.18 |
| 20×15 | 3/4×1/2 | 27.5 | 22.3 | 15 | 12.5 | 9.5 | 9.5 | 5.25 | 7.85 | 38 | 31.5 | 0.18 |
| 25×15 | 1×1/2 | 34.5 | 22.3 | 15 | 12.5 | 9.5 | 11 | 5.25 | 11.35 | 45 | 33 | 0.28 |
| 25×20 | 1×3/4 | 34.5 | 27.5 | 20 | 12.5 | 12.5 | 11 | 5.25 | 8.75 | 45 | 36 | 0.27 |
| 32×15 | 1-1/4×1/2 | 42.7 | 22.3 | 15 | 12.5 | 9.5 | 11 | 7.15 | 17.35 | 57 | 33 | 0.48 |
| 32×20 | 1-1/4×3/4 | 42.7 | 27.5 | 20.2 | 12.5 | 12.5 | 11 | 7.15 | 14.75 | 57 | 36 | 0.50 |
| 32×25 | 1-1/4×1 | 42.7 | 34.5 | 25.9 | 12.5 | 12.5 | 12.5 | 7.15 | 11.25 | 57 | 37.5 | 0.47 |
| 40×15 | 1-1/2×1/2 | 48.8 | 22.3 | 15 | 12.5 | 9.5 | 11 | 6.6 | 19.85 | 62 | 33 | 0.55 |
| 40×20 | 1-1/2×3/4 | 48.8 | 27.5 | 20.2 | 12.5 | 12.5 | 11 | 6.6 | 17.25 | 62 | 36 | 0.58 |
| 40×25 | 1-1/2×1 | 48.8 | 34.5 | 25.9 | 12.5 | 12.5 | 12.5 | 6.6 | 13.75 | 62 | 37.5 | 0.56 |
| 40×32 | 1-1/2×1-1/4 | 48.8 | 42.7 | 34.3 | 12.5 | 12.5 | 12.5 | 6.6 | 9.65 | 62 | 37.5 | 0.47 |
| 50×15 | 2×1/2 | 60.8 | 22.3 | 15 | 16 | 9.5 | 14.3 | 7.6 | 26.85 | 76 | 39.8 | 1.00 |
| 50×20 | 2×3/4 | 60.8 | 27.5 | 20.2 | 16 | 12.5 | 14.3 | 7.6 | 24.25 | 76 | 42.8 | 1.07 |
| 50×25 | 2×1 | 60.8 | 34.5 | 25.9 | 16 | 12.5 | 15.8 | 7.6 | 20.75 | 76 | 44.3 | 1.06 |
| 50×32 | 2×1-1/4 | 60.8 | 42.7 | 34.3 | 16 | 12.5 | 15.8 | 7.6 | 16.65 | 76 | 44.3 | 0.96 |
| 50×40 | 2×1-1/2 | 60.8 | 48.8 | 40.1 | 16 | 12.5 | 15.8 | 7.6 | 13.6 | 76 | 44.3 | 0.87 |
All dimensions conform to ASME B16.11 and related international standards. Custom sizes are available upon request.
Reducer hoops cover sizes from DN6 to DN100 (1/8"–4"), with precise dimensional control to ensure proper socket depth, alignment, and safe operation.
Key dimensions include:
Socket inside diameter (S / S1)
Through hole diameter (D)
Socket depth (C / C1)
Middle through hole (E)
Wall thickness (C / C1)
Outside diameter and overall length
ASME B16.11
BS 3799
JIS B2316
GB/T 14383
SH 3410
HG/T 21634
Fully compatible with global EPC and industrial pipeline projects.
Carbon Steel: ASTM/ASME A105, A350 LF2–LF6, 20#, Q235, Q345
Stainless Steel: ASTM F304, F304L, F316, F316L
Duplex & Super Duplex: ASTM A182 F51, F53, F55; S31803, S22253, S32205, S22053
Alloy Steel: ASTM F5, F9, F11, F22, F91
Copper Alloy: ASTM/ASME SB466 UNS C70600, C71500
Nickel & Special Alloys: ASTM/ASME SB336, SB564, SB160, SB163, SB472; UNS N02200/201, N04400, N08825, N06600/601/625, N10276
All materials come with Mill Test Certificates (MTC) and full traceability.
Raw material inspection
Cutting and billet preparation
Die forging / Free forging
Heat treatment
CNC precision machining
Surface finishing
Dimensional inspection & NDT
Ensures high mechanical strength, dimensional accuracy, and long-term reliability.
Dimensional inspection
Chemical composition analysis
PMI testing
Ultrasonic Testing (UT)
Magnetic Particle Testing (MT)
High-pressure oil & gas pipelines
Chemical and petrochemical piping systems
Power plant piping systems
Hydraulic and instrumentation pipelines
Offshore and marine industrial systems
Full size range DN6–DN100
Pressure ratings up to ASME Class 9000
Multiple material options including stainless, duplex, and nickel alloys
Forged and CNC machined for precise socket weld / threaded connections
Full compliance with ASME, BS, JIS, and GB standards
