Socket Weld Flanges - Pumps, Valves, Piping and Fittings
Socket weld flanges are forged pipe flanges with a recessed socket that locates the pipe before fillet welding. They are used in marine pump, valve, piping and instrumentation systems, particularly for small-bore, high-pressure services.
ProShipWorks provides end-to-end support to source and supply Socket Weld Flanges for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Socket Weld Flanges |
|---|---|
| Product Category | Pumps, Valves, Piping and Fittings |
| Product Reference | 633 |
| Brands / Manufacturers | Galperti, Metalfar, ULMA Forged Solutions |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Socket recess provides accurate pipe alignment |
| 2. Suitable for small-diameter piping |
| 3. Available in raised-face and other facing configurations |
| 4. Forged carbon steel, stainless steel and alloy steel options |
| 5. Pressure-temperature ratings defined by the applicable flange standard |
Applications of Socket Weld Flanges
| Application |
|---|
| 1. Marine pump discharge and suction piping |
| 2. Valve and small-bore ship piping connections |
| 3. Hydraulic, fuel oil, compressed air and utility systems |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| ASME B16.5 Socket-Welding Flange Class 150 | Various qualified flange manufacturers |
| ASME B16.5 Socket-Welding Flange Class 300 | Various qualified flange manufacturers |
| ASME B16.5 Socket-Welding Flange Class 600 | Various qualified flange manufacturers |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| ASME B16.5 Socket-Welding Flange Class 150 | Nominal size range | NPS 1/2 to NPS 24 | in |
| ASME B16.5 Socket-Welding Flange Class 300 | Nominal size range | NPS 1/2 to NPS 24 | in |
| ASME B16.5 Socket-Welding Flange Class 600 | Nominal size range | NPS 1/2 to NPS 24 | in |
| Common carbon steel construction | Material | ASTM A105 forged carbon steel | — |
| Common stainless steel construction | Material | ASTM A182 F304 or F316 | — |
| ASME B16.5 Socket-Welding Flange | Typical facing | Raised Face or Flat Face, as specified | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | ASME B16.5 covers dimensions, materials, pressure-temperature ratings and testing requirements for many socket-welding flanges. Material may comply with ASTM A105 or ASTM A182. EN 10204 3.1 material certificates are commonly requested for marine supply. |
|---|---|
| Class Approval | Individual flanges are normally supplied with material traceability and manufacturer quality documentation. DNV, ABS, Lloyd's Register, Bureau Veritas or ClassNK approval may be required when specified by the vessel class, piping design or project documentation. |
Installation, Maintenance & Safety Information
| Installation Notes | Verify nominal size, pressure class, material, facing, bore and piping standard before installation. Insert the pipe fully into the socket, then withdraw it slightly to provide the required expansion gap. Complete welding using an approved welding procedure and inspect the weld as specified. |
|---|---|
| Maintenance Tips | Inspect flange faces, weld areas, bolts and nearby pipe supports during planned maintenance. Check for leakage, corrosion, distortion and galvanic attack. Replace damaged flanges and renew gaskets during disassembly; do not reuse compressed gaskets. |
| Safety Notes | Depressurize, drain, vent and isolate the piping system before work. Confirm the line is free from hazardous cargo and hot surfaces. Use approved welding procedures, ventilation and fire precautions, and tighten bolting to the specified torque in a controlled sequence. |
Request a Quote for Socket Weld Flanges
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
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