Socket weld reducer insert · forged A105 · MSS SP-79 · UAE stock
A forged insert that fits into the socket of a standard B16.11 fitting and gives a smaller socket for the reduced pipe. It turns an equal tee or coupling into a reducing fitting without stocking every reducing combination.
Checked stock, standard-compliant
Full sizes, ratings & materials
Ready inventory, UAE & GCC delivery
Project quantities at best price
A socket weld reducer insert has a spigot that slides into the socket of a larger fitting and a socket of its own for the smaller pipe. MSS SP-79 covers these inserts and defines three types depending on how the outer spigot and inner socket overlap, so that short and long combinations both fit inside the parent socket. The insert is fillet welded to the parent fitting, and the small pipe is welded into the insert.
Hamza Fasteners supplies MSS SP-79 inserts in A105 for class 3000 and 6000 fittings, with large ends from 3/8 to 4 inch. They are used by fabricators to reduce tees, elbows and couplings on site, saving the cost of special reducing fittings and keeping inventory lean. List the combinations and class you need and our Dubai team will confirm the type and price.
Reference data for SW Reducer Insert. Confirm exact size, rating and material for your order with our team.
This datasheet shows representative sizes for reference only. SW Reducer Insert is supplied in the full range of sizes, ratings and materials — not a single option. Tell us what you need and we will confirm exact availability, specification and price.
| Size (Large x Small) | Large End Pipe OD (mm) | Small End Pipe OD (mm) | Small End Min. Socket Depth (mm) |
|---|---|---|---|
| 1/2" x 1/4" | 21.3 | 13.7 | 9.5 |
| 1/2" x 3/8" | 21.3 | 17.1 | 9.5 |
| 3/4" x 1/2" | 26.7 | 21.3 | 9.5 |
| 1" x 1/2" | 33.4 | 21.3 | 9.5 |
| 1" x 3/4" | 33.4 | 26.7 | 12.5 |
| 1-1/2" x 1" | 48.3 | 33.4 | 12.5 |
| 2" x 1" | 60.3 | 33.4 | 12.5 |
| 2" x 1-1/2" | 60.3 | 48.3 | 12.5 |
| Product Type | Socket weld reducer insert |
|---|---|
| Material | ASTM A105 / A105N |
| Standard | MSS SP-79 |
| Pressure / Class | Class 3000 · 6000 |
| End Connection | Spigot x socket weld |
| Size Range | Large end 3/8" – 4" |
| Types | Type 1, 2 and 3 |
On-site reductions
Gauge size reductions
Small-bore process lines
Branch size changes
Air & water headers
Fast field modifications
Stocked in Deira, Dubai and delivered fast across the region. Wherever you are building, we supply in stock and project quantities.
Hamza Fasteners is a trusted SW Reducer Insert supplier in Dubai and across the United Arab Emirates — Abu Dhabi, Sharjah and Ajman — with regular export supply to Saudi Arabia (Riyadh, Jeddah, Dammam), Qatar (Doha), Kuwait City, Oman (Muscat) and key East and West African markets including Tanzania (Dar es Salaam), Kenya (Nairobi and Mombasa), Nigeria (Lagos) and Ethiopia (Addis Ababa). Looking for a "SW Reducer Insert supplier near me" or the best price in your city? Send us your requirement for a same-day quote.
Share the size, material, rating and quantity. We will confirm stock and send a quick quote with the datasheet and best price.
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