Home/ MS & Buttweld Fittings/ Buttweld Reducer
Buttweld Fitting Reducer
MS & Buttweld Fittings
Concentric / EccentricASME B16.9SCH 40 / 80UAE Stock

Buttweld Reducer, Concentric & Eccentric (M.S. SCH 40 / 80)

Reducer · carbon steel A234 WPB · ASME B16.9 · Dubai stock

Carbon steel buttweld reducers that change line size in a welded pipeline, in concentric or eccentric form, made to ASME B16.9 in SCH 40 and SCH 80 with bevelled ends.

Material
A234 WPB carbon steel
Standard
ASME B16.9
Types
Concentric, eccentric
Sizes
1" x 3/4" – 8" x 6"
Same-day quote Bulk & wholesale UAE & GCC delivery

Quality Assured

Checked stock, standard-compliant

Wide Size Range

Full sizes, ratings & materials

Ex-Stock, Dubai

Ready inventory, UAE & GCC delivery

Bulk & Wholesale

Project quantities at best price

Overview

Buttweld Reducers for Changing Pipe Size in Welded Lines

A buttweld reducer joins two pipes of different size with a smooth cone, welded at both ends. The concentric type keeps both centrelines on the same axis and is used on vertical lines and pump discharges. The eccentric type has one flat side, so it can be laid flat on top to stop air pockets at a pump suction, or flat on the bottom so a line drains completely.

We stock reducers from 1" x 3/4" to 8" x 6" in SCH 40 and SCH 80. Both types share the same B16.9 length for a given large-end size, so they can be swapped at design stage. See the separate concentric and eccentric pages for detail. Ends are bevelled ready for welding. Send the large x small sizes to our Dubai team for a quote.

Technical Data

Buttweld Reducer datasheet and specifications

Reference data for Buttweld Reducer. Confirm exact size, rating and material for your order with our team.

This datasheet shows representative sizes for reference only. Buttweld Reducer 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.

Dimensions · ASME B16.9

Reducer overall length (H)

HAMZA FASTENERS
Reference
SizeLarge End OD (mm)Small End OD (mm)Length H (mm)
1" x 3/4"33.426.751
1-1/2" x 1"48.333.464
2" x 1"60.333.476
2" x 1-1/2"60.348.376
3" x 2"88.960.389
4" x 2"114.360.3102
4" x 3"114.388.9102
6" x 4"168.3114.3140
8" x 6"219.1168.3152
H is set by the large-end size and is the same for concentric and eccentric reducers.
Datasheet · BW-RED

Product Specification

HAMZA FASTENERS
Rev. 01
Product TypeReducer, concentric or eccentric
MaterialASTM A234 WPB carbon steel
StandardASME B16.9
ScheduleSCH 40, SCH 80
End Prep37.5° bevel both ends
Size Range1" x 3/4" – 8" x 6"
State large x small size, type, and schedule for each end if they differ.
Size
1" x 3/4" – 8" x 6"
Material
Carbon steel WPB
Rating
SCH 40 / SCH 80
Full range supplied — sizes, ratings & materials
Size Range
1" to 8" (other sizes on request)
Materials
Carbon / mild steel, ASTM A234 WPB
Standards
ASME B16.9, B16.25 weld bevel
Pressure
Matches SCH 40 / SCH 80 pipe
Ends / Types
Butt weld, 37.5° bevel
Also Available
Tees, elbows, caps, M.S. pipe
Request Full Datasheet & Price Need a specific size, rating or material? Send us your requirement.
Applications

Where Buttweld Reducer is used

Pump Stations

Suction and discharge

Fire Mains

Header to branch

HVAC Plant

Chiller connections

Oil Lines

Size transitions

Process Plant

Line changes

Building Risers

Vertical reductions

Availability & Supply

Buttweld Reducer supplier across the UAE, GCC and Africa

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 Buttweld Reducer 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 "Buttweld Reducer supplier near me" or the best price in your city? Send us your requirement for a same-day quote.

United Arab Emirates

  • Dubai
  • Abu Dhabi
  • Sharjah
  • Ajman

Saudi Arabia

  • Riyadh
  • Jeddah
  • Dammam

GCC

  • Doha, Qatar
  • Kuwait City
  • Muscat, Oman

Africa

  • Tanzania
  • Kenya · Nigeria
  • Ethiopia
FAQ

Common questions

Should I use a concentric or eccentric reducer?
Use concentric on vertical runs and pump discharges where the axis stays central. Use eccentric on horizontal pump suctions with the flat side on top to avoid trapping air, or flat side down on lines that must drain.
Can each end of a reducer have a different schedule?
Yes. Reducers can be ordered with the schedule of each end matched to its pipe, for example SCH 80 large end and SCH 40 small end. State both when enquiring. Matching each end to its pipe keeps the weld bevels aligned and avoids having to taper a thicker wall on site.
Which reducer sizes do you supply?
We supply common combinations from 1" x 3/4" to 8" x 6" in SCH 40 and SCH 80, both concentric and eccentric. We can also supply matching fittings so the whole line comes from one source.
How much does a buttweld reducer cost in Dubai?
Price depends on size combination, type, schedule and quantity. Send your list on WhatsApp for a quotation. We can quote by piece or by carton, whichever suits your purchase order. Including the full list with quantities lets us apply the best rate across the order.
Do you deliver across the UAE and GCC?
Yes. We deliver to all emirates and ship to Saudi Arabia, the GCC and Africa. Export orders can be packed in cartons or on pallets with commercial documents. Tell us your site location and deadline and we will suggest the quickest option.

Need Buttweld Reducer for your project?

Share the size, material, rating and quantity. We will confirm stock and send a quick quote with the datasheet and best price.

Email Us WhatsApp Enquiry Call Us sales@hamzafasteners.com · Deira, Dubai
Download Catalogue