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Slip-On Flange Class 150 / 300
Flanges
SORFFillet WeldedASME B16.51/2 – 12 inch

M.S. Slip-On Flange (SORF, ASME B16.5 Class 150 / 300)

Slip-on flange · mild steel · ASME B16.5 · UAE stock

The most widely used pipe flange: it slides over the pipe and is fillet welded inside and out. Easy to align on site and lower in cost than a weld neck, it suits most water, air and process lines.

Material
Mild steel / carbon steel
Standard
ASME B16.5
Face
Raised face (RF)
Sizes
1/2" – 12"
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

Mild Steel Slip-On Flanges (SORF) for Pipework in the UAE

A slip-on flange has a bore slightly larger than the pipe OD, so the pipe slides into it and the flange is attached with two fillet welds, one at the hub and one inside the bore. Because the axial position can be adjusted before welding, alignment is far easier than with a weld neck. Its pressure capacity is roughly two-thirds of a weld neck of the same class, which is ample for most utility and process lines.

Hamza Fasteners stocks MS slip-on raised face flanges from 1/2 inch to 12 inch in ASME B16.5 Class 150 and Class 300, with PN16 drilling for European equipment. They are used on chilled water, fire mains, pump skids, compressed air and general process piping. Pair them with gaskets and stud bolts from the same store and send your list to our Deira, Dubai team for a price.

Technical Data

MS Slip-On Flange datasheet and specifications

Reference data for MS Slip-On Flange. Confirm exact size, rating and material for your order with our team.

This datasheet shows representative sizes for reference only. MS Slip-On Flange 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 B16.5 Class 150

Slip-on flange bore, OD and drilling

HAMZA FASTENERS
Reference
NPSPipe OD (mm)Bore (mm)Flange OD (mm)Bolt Circle (mm)Bolts
1/2"21.322.49060.34 × 1/2"
1"33.434.511079.44 × 1/2"
1-1/2"48.349.512598.44 × 1/2"
2"60.362.0150120.74 × 5/8"
3"88.990.7190152.44 × 5/8"
4"114.3116.1230190.58 × 5/8"
6"168.3170.7280241.38 × 3/4"
8"219.1221.5345298.58 × 3/4"
10"273.0276.4405362.012 × 7/8"
12"323.8327.2485431.812 × 7/8"
Bore is nominal (B16.5 tolerances apply). Class 300 has larger OD and more bolts; ask for the Class 300 table.
Datasheet · FL-SO

Product Specification

HAMZA FASTENERS
Rev. 01
Product TypeSlip-on flange, raised face (SORF)
MaterialMild steel / carbon steel (ASTM A105 type)
StandardASME B16.5, EN 1092-1 on request
Pressure / ClassClass 150 (19.6 bar), Class 300 (51.1 bar) at ambient
End ConnectionDouble fillet weld to pipe
Size Range1/2" to 12"
FinishBlack / oiled, primer or galvanised on request
Ratings shown are for carbon steel group 1.1 at ambient temperature; they reduce as temperature rises.
Size
1/2" – 12"
Material
Mild steel
Rating
Class 150 / 300
Full range supplied — sizes, ratings & materials
Size Range
1/2" to 12" NPS
Materials
Mild steel, carbon steel, aluminium
Standards
ASME B16.5, EN 1092-1
Pressure
Class 150, Class 300, PN10 / PN16
Ends / Types
Raised face or flat face
Also Available
Weld neck, blind and threaded flanges
Request Full Datasheet & Price Need a specific size, rating or material? Send us your requirement.
Applications

Where MS Slip-On Flange is used

Chilled Water

District cooling and AHUs

Fire Mains

Pump rooms and risers

Process Piping

Plant utilities

Pump Skids

Suction and discharge

Marine Piping

Ballast and service lines

Irrigation

Pump station manifolds

Availability & Supply

MS Slip-On Flange 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 MS Slip-On Flange 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 "MS Slip-On Flange 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

How is a slip-on flange welded?
Slide the flange over the pipe so the pipe end sits slightly back from the flange face, roughly the pipe wall thickness plus a few millimetres. Then make a fillet weld at the back of the hub and a second fillet weld at the bore, taking care not to weld onto the raised face.
Slip-on or weld neck: which should I choose?
Slip-on flanges are cheaper, easier to align and suit most utility service. Choose a weld neck for high pressure, high temperature, cyclic loading or where the joint must be radiographed, because its butt weld and tapered hub carry stress much better.
What sizes and classes of slip-on flanges do you have?
We hold slip-on flanges from 1/2 inch to 12 inch in Class 150 and Class 300, plus PN16 drilling. Larger sizes and Class 600 can be sourced to order. Tell us the size, class, facing and pipe schedule.
How much does a slip-on flange cost in Dubai?
Price depends on the size, pressure class, quantity and whether you need certificates. Send your list on WhatsApp and Hamza Fasteners will quote quickly, with discounts for project quantities. Mention whether you need raised or flat face and any certificates.
Do you deliver flanges across the UAE and GCC?
Yes. We deliver within Dubai and across the UAE, and we export to Saudi Arabia, Oman, Qatar, Bahrain, Kuwait and African markets. Ask for packing and lead time when you send your enquiry.
Will a Class 150 flange bolt up to a PN16 flange?
Not reliably. Up to about 3 inch some holes come close, but bolt circle, hole count and bolt size differ between ASME and EN patterns. Always match the drilling standard of the valve or equipment you are connecting to.

Need MS Slip-On Flange 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
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