ALFACOM ENGINEERING LTD.
Steel Socket Weld Fittings — Class 3000
Socket weld steel fittings connect, branch, redirect and close industrial piping. The listed Class 3000 family includes elbows, equal tees, crosses, couplings, bosses, caps, laterals and reducer inserts.
Steel Socket Weld Fittings — Class 3000 · ALFACOM catalogue
THE PRODUCT RANGE
Explore the Range
Select a configuration below for English product guidance and its location in the technical catalogue. Match the exact end arrangement and dimensions to the application.
Product details and a drawing index are provided below. Confirm material grade, connection details and operating suitability for the requested item.
Steel SW Boss Class 3000
Steel SW 45 Lateral Class 3000
Steel SW 45 Elbow Class 3000
Steel SW 90 Elbow Class 3000
Steel SW Half Coupling Class 3000
Steel SW Equal Tee Class 3000
Steel SW Cap Class 3000
Steel SW Full Coupling Class 3000
Steel SW Reducer Insert Class 3000
Steel SW Cross Class 3000
SW Boss
A socket-weld boss for incorporation into equipment or pipework according to the installation detail. Specify socket size, body length F and the base and weld arrangement.
Drawing and dimensions: catalogue page 7. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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45° SW Lateral
Forms a 45-degree branch with socket-weld connections. State all end sizes and check the A and H laying dimensions against the piping layout.
Drawing and dimensions: catalogue page 9. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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45° SW Elbow
Changes pipe direction by 45 degrees through socket-weld ends. Check socket bore B, minimum socket depth J and centre-to-bottom-of-socket dimension A.
Drawing and dimensions: catalogue page 2. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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90° SW Elbow
Changes pipe direction by 90 degrees through two socket-weld ends. Match the socket dimensions to the pipe and verify the installed centre dimensions.
Drawing and dimensions: catalogue page 1. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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SW Half Coupling
A single-socket fitting for connecting pipe to a component or vessel according to the engineered joint detail. Check socket dimensions, body length F and the opposite-end weld arrangement.
Drawing and dimensions: catalogue page 6. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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Equal SW Tee
Forms a right-angle branch with three connections of the same nominal size. Specify all end sizes and verify socket and centre dimensions.
Drawing and dimensions: catalogue page 3. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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SW Cap
Closes a pipe end using a socket-weld connection. Check socket bore B, socket depth J, cap length F and the closed-end geometry.
Drawing and dimensions: catalogue page 8. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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Full SW Coupling
Joins two pipe sections in a straight line through two socket-weld ends. Check bore B, depth J and dimension E in the coupling drawing.
Drawing and dimensions: catalogue page 5. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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SW Reducer Insert
Adapts a socket-weld connection to a smaller size. Specify large- and small-end sizes, Type 1 or Type 2 construction, shank diameter SD and minimum socket depth K. The reference drawings are identified as MSS SP-79.
Drawing and dimensions: catalogue page 10–12. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
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SW Cross
Provides four socket-weld connections at a pipework intersection. State all four end sizes and check the centre and socket dimensions against the installation layout.
Drawing and dimensions: catalogue page 4. Specify steel grade, nominal sizes, pipe outside diameter and wall, required standard and operating conditions.
Open the catalogue and drawing index → · Request a quotation →
Class 3000 Steel SW Fittings — Drawing Index
Use the ALFACOM socket-weld reference to identify the fitting, socket geometry and installation dimensions. Select the reducer-insert construction explicitly, including the large- and small-end sizes.
Class 3000 is a class designation, not a universal allowable working pressure. Confirm the actual material, temperature, applicable standard and supplied configuration before establishing service limits.
| Configuration | PDF page |
|---|---|
| SW Boss | 7 |
| 45° SW Lateral | 9 |
| 45° SW Elbow | 2 |
| 90° SW Elbow | 1 |
| SW Half Coupling | 6 |
| Equal SW Tee | 3 |
| SW Cap | 8 |
| Full SW Coupling | 5 |
| SW Reducer Insert | 10–12 |
| SW Cross | 4 |
APPLICATION BEFORE SPECIFICATION
Selection Starts with Your Application
Specify all end sizes, material grade, standard, pipe outside diameter and wall thickness, and operating conditions. Confirm socket fit and weld details. Class 3000 is a class designation; allowable pressure depends on the supplied component, material and temperature.
Catalogue & Technical Documents
Review the model-specific technical information and installation requirements. Send a specification, drawing or existing model reference if you need help selecting equipment.
Discuss Your Application
Send your requirements or a photo of the existing equipment for technical assistance and a quotation.
Availability and lead time are confirmed for the requested model and quantity.