Confirm flange construction
Distinguish a socket weld flange from a socket weld fitting.
LEKE PIPING / PRODUCTS
Socket Weld Flanges
Socket weld flanges locate the pipe end in a recessed socket. Confirm socket dimensions and matching pipe wall.
PRODUCT DETAILS
Specify the connection completely.
We can also make custom sizes, thicknesses and other dimensions to your drawing. Send your specifications with your RFQ so we can confirm the details.
| Parameter | Details to confirm |
|---|---|
| Connection | Socket-weld flange construction |
| Matching pipe | Nominal pipe size, outside diameter and wall thickness or schedule |
| Socket | Socket diameter, socket depth and flange bore to the approved drawing |
| Facing and class | Pressure class, facing type and finish to match the specified connection |
Product dimensions, material grades and documentation are confirmed against your enquiry and applicable project requirements.
Primary dimensional reference: ASME B16.5 (NPS 1/2–24 where the type is covered). Confirm the product type, edition and applicable size before order.
DIMENSIONAL REFERENCE
Socket Weld Flange dimensional drawing.
Use the section view to identify the dimensions to confirm in your enquiry.
Reading this drawing
- D
- Flange outside diameter
- G
- Facing diameter shown in this drawing
- t
- Flange thickness indicated by the drawing
- X
- Hub outside diameter indicated by the drawing
- B₁
- Bore dimension indicated by the drawing
- B₂
- Bore / socket dimension indicated by the drawing
- Y
- Socket recess depth indicated by the drawing
- T₂
- Overall length through the hub indicated by the drawing
Symbols describe this supplied drawing. Confirm their correspondence with the selected standard and dimension table; notation may differ.
Any 1.6 mm facing height shown is specific to the supplied illustration. The applicable standard, pressure class and facing type determine the required value. This diagram does not define a universal facing height.
SELECTION & ENQUIRY
The details that make the difference.
Provide pipe details
State the pipe outside diameter and wall thickness or schedule. Confirm the socket and bore dimensions against the matching pipe.
Review the drawing
Include the drawing revision, socket diameter and depth, bore and any special machining tolerances.
TECHNICAL REFERENCES
Check dimensions before your RFQ.
ASME B16.5 / approved drawing
Flange dimensions and connection references
Check that the selected standard covers the socket weld flange type, size and class. Confirm the edition, units and approved drawing before ordering.
Socket Weld Flange — weight estimate
Use the existing calculator for preliminary estimates. Confirm the final dimensions, material and actual product weight separately.
PRODUCT VIEWS
Socket weld flanges — closer look.
Compare the finished-product batch with socket weld flange blanks before machining. These are different batches, not a before-and-after record of the same parts. Use the dimensional drawings and confirmed specifications for your order.
DIMENSIONAL REFERENCES
Product reference dimensions.
Reference data retained from the existing product page. Check the stated standard, edition, units and the approved project specification.
Open dimensional reference tables
Product overview
Match the flange to the piping requirement.
Socket welding flanges are commonly considered where the pipe end is inserted into a socket before welding. Confirm the applicable material, size, standard, pressure class, socket dimensions and facing requirement together.
Before quotation, provide the product size, material, applicable standard, pressure class, facing, quantity, destination and any drawings or documentation requirements.
Explore All FlangesListed product scope
| Size | 1/2″ to 24″ |
|---|---|
| Pressure class | Class 150 to Class 1500 |
| Materials | Carbon steel, stainless steel and alloy steel |
| Standards | ASME B16.5/B16.47, API 605, MSS SP44, DIN 2631–2637, EN 1092-1, GOST 12821-80, BS and JIS 2220 |
| Facing | RF, FF, RTJ, male/female and tongue/groove as applicable |
Final suitability, dimensions and documentation remain subject to the confirmed product and project requirements.
COMMON QUESTIONS
Before you send the enquiry.
Is this page for socket weld fittings?
This page covers flanges. Socket weld elbows, tees and couplings are in the forged fittings range.
Which dimensions identify the socket connection?
Provide the pipe outside diameter and wall thickness or schedule, socket diameter and depth, and flange bore. Check these dimensions together against the applicable standard and approved drawing.
How can I distinguish a socket weld flange from a slip-on flange?
A socket weld flange has an internal socket shoulder; a slip-on flange has a plain through bore. Ask for a section drawing when the connection is unclear in a photograph.
Can I use the diagram to determine the assembly gap?
The diagram is an illustration of the connection. Use the approved welding and assembly requirements for the actual joint; do not apply a single illustrated value to every order.
What should I include for inspection planning?
Specify the material certificate requirements, heat traceability, socket and bore dimensional checks, and any project-required testing or witness points. Agree on acceptance criteria and required records before ordering.
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View product details →Need Socket Weld Flanges?
Request a quote for this product →Send the size, standard and edition, pressure class, facing, material grade and quantity. Include pipe details, drawing revision and inspection documents required.
SEND YOUR REQUIREMENT
From your specification
to a clearer quotation.
Email your item list with quantities, destination and required delivery date. Flag any open points.
USEFUL TO INCLUDE
- Nominal size and applicable standard
- Pressure class and facing
- Material grade and quantity
- Bore or matching pipe details, where applicable
- Drawing, inspection documents and destination
The quotation will confirm supply scope, required documents and delivery terms.