Socket Weld Pipe Fittings
Socket Weld Pipe Fittings are intended for compact, high-integrity piping connections. The range includes equal and reducing elbows, couplings and crosses for industrial piping layouts where a socket-weld connection is specified.
Key Features
- Socket-weld connection format
- Compact fitting profile
- Equal and reducing configurations
- Elbow, coupling and cross options
- Industrial piping applications
- Configuration support available
TECHNICAL SPECIFICATIONS
Material Options
304 and 316L stainless steel
Connection Types
Socket weld
Temperature Range
-196°C to 800°C
Pressure Rating
PN2.5 standard; up to PN4.5 custom
Diameter Range
DN15–DN300, depending on fitting
Certifications
CJ/T 152-2016
Pipe Compatibility Reference: Industrial Stainless Steel Welded Pipes
| Nominal Diameter (DN) | NPS Designator | OD - ASTM/ASME (mm) | OD - EN/ISO (mm) | OD - JIS (mm) | WT - Sch 10S (mm) | WT - Sch 40S (mm) | Remarks |
|---|---|---|---|---|---|---|---|
| DN15 | 1/2" | 21.3 mm | 21.3 mm | 21.7 mm | 2.11 mm | 2.77 mm | Standard |
| DN20 | 3/4" | 26.7 mm | 26.9 mm | 27.2 mm | 2.11 mm | 2.87 mm | - |
| DN25 | 1" | 33.4 mm | 33.7 mm | 34.0 mm | 2.77 mm | 3.38 mm | - |
| DN32 | 1-1/4" | 42.2 mm | 42.4 mm | 42.7 mm | 2.77 mm | 3.56 mm | - |
| DN40 | 1-1/2" | 48.3 mm | 48.3 mm | 48.6 mm | 2.77 mm | 3.68 mm | - |
| DN50 | 2" | 60.3 mm | 60.3 mm | 60.5 mm | 2.77 mm | 3.91 mm | Most Popular |
| DN65 | 2-1/2" | 73.0 mm | 76.1 mm | 76.3 mm | 3.05 mm | 5.16 mm | Verify OD |
| DN80 | 3" | 88.9 mm | 88.9 mm | 89.1 mm | 3.05 mm | 5.49 mm | - |
| DN100 | 4" | 114.3 mm | 114.3 mm | 114.3 mm | 3.05 mm | 6.02 mm | Universal OD |
| DN125 | 5" | 141.3 mm | 139.7 mm | 139.8 mm | 3.4 mm | 6.55 mm | - |
| DN150 | 6" | 168.3 mm | 168.3 mm | 165.2 mm | 3.4 mm | 7.11 mm | JIS Spec |
| DN200 | 8" | 219.1 mm | 219.1 mm | 216.3 mm | 3.76 mm | 8.18 mm | - |
| DN250 | 10" | 273.1 mm | 273.0 mm | 267.4 mm | 4.19 mm | 9.27 mm | - |
| DN300 | 12" | 323.9 mm | 323.9 mm | 318.5 mm | 4.57 mm | 9.53 mm | - |
Industrial pipe dimensions follow ASME B36.19M and EN ISO 1127 Series 1 references. These values are for industrial welded pipes, not thin-wall press-connect tubes. Confirm the applicable outside diameter before ordering, especially for DN65, where ASTM, EN/ISO and JIS values differ.
Pipe Compatibility Tolerances: Stainless Steel Welded Pipes
| Nominal Diameter (DN) | NPS Designator | Outside Diameter (OD) Tolerance | Wall Thickness (WT) Tolerance |
|---|---|---|---|
| DN15–DN40 | 1/2" to 1-1/2" | +0.40 / -0.80 mm | +20.0% / -12.5% |
| DN50–DN65 | 2" to 2-1/2" | +0.80 / -0.80 mm | +20.0% / -12.5% |
| DN80–DN100 | 3" to 4" | +0.80 / -0.80 mm | +22.5% / -12.5% * |
| DN125–DN200 | 5" to 8" | +1.60 / -0.80 mm | +15.0% / -12.5% * |
| DN250–DN300 | 10" to 12" | +2.40 / -0.80 mm | +15.0% / -12.5% * |
Tolerance reference: ASTM A999-23 and A312. For press-connect or thin-wall systems, request the dedicated tube dimensional catalog. Large-diameter tolerance depends on the t/D ratio; final dimensions are confirmed against the selected standard and order.
- Industrial piping
- Process water systems
- Compact pipe layouts
- Maintenance and replacement projects
Warranty and support
2-year warranty and 7×24 technical support.
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