Lap Joint Flange
Lap Joint Flange Manufacturer and Supplier in Tunisia, Algeria, Libya & Morocco
Emirerri Steel Tunisia is a leading manufacturer and exporter of lap joint flanges , providing high-performance solutions that meet international standards throughout Morocco, Algeria, Tunisia, Libya, and Egypt . Our flanges are produced according to EN 1092-1 and AFNOR standards , guaranteeing quality, compatibility, and durability for industrial applications in North Africa.
Lap Joint Flange are used in combination with a stub end , allowing the flange to rotate freely around the tube. This design facilitates the alignment of bolt holes and greatly simplifies installation, especially in systems requiring frequent disassembly.
Thanks to the use of high-quality materials such as carbon steel, stainless steel, alloy steel and duplex steel, Emirerri Steel Tunisia offers corrosion-resistant, durable products perfectly suited to the demanding industrial environments of the region.
Product Specifications
| Setting | Description |
|---|---|
| Product type | Free-swing flange (Type 02 / compatible with stub end Type 35) |
| Standard | EN 1092-1 / AFNOR |
| Pressure classes | PN 2.5, PN 6, PN 10, PN 16, PN 25 |
| Size range | DN15 to DN2000 |
| Types of faces | Face plane (FF) |
| Materials | Carbon steel, stainless steel, alloy steel, duplex steel |
| Manufacturing process | Cutting / Forging |
| Use | With stub end (flange end) |
| Surface finish | Oiled, galvanized, pickled and passivated |
| Inspection | Dimensional control, NDT testing |
| Certification | EN 10204 3.1 / 3.2 |
Loose-fit flanges are ideal for systems requiring flexibility, easy alignment and quick maintenance .
AFNOR & EN Grade Chart
Carbon Steel
| Grade EN | AFNOR grade | Description |
|---|---|---|
| P235GH | E24-2 | Standard steel for pressure |
| P250GH | E24-2 / E26-2 | Boiler steel |
| P265GH | E28-2 | High temperature |
| P355GH | E36-2 | High resistance |
Stainless steel
| Grade EN | AFNOR grade | Equivalent |
|---|---|---|
| 1.4301 | Z5CN18-10 | 304 |
| 1.4307 | Z3CN18-10 | 304L |
| 1.4401 | Z5CND17-12 | 316 |
| 1.4404 | Z3CND17-12 | 316L |
| 1.4541 | Z6CN18-10 | 321 |
| 1.4571 | Z6CND17-12 | 316Ti |
Duplex & Alloy Steels
| Grade EN | AFNOR grade | Description |
|---|---|---|
| 1.4462 | Z2CND22-05 | Duplex steel |
| 1.7380 | 10CD9-10 | Alloy steel |
| 1.7335 | 13CrMo4-5 | High temperature |
Dimensions of Free-Switch Flanges (EN 1092-1 / AFNOR)
The Lap Joint flanges conform to EN 1092-1 Type 02 , used with Type 35 stub ends .
Dimensional Parameters
- DN – Nominal diameter
- D – Outer diameter
- K – Drilling circle
- B – Inner diameter
- C – Thickness
- N – Number of holes
Table of Dimensions (Example)
| DN | D (mm) | K (mm) | B (mm) | C (mm) | Bolts |
|---|---|---|---|---|---|
| 25 | 115 | 85 | 34 | 12 | M12 |
| 40 | 150 | 110 | 49 | 14 | M16 |
| 50 | 165 | 125 | 61 | 14 | M16 |
| 80 | 200 | 160 | 90 | 16 | M16 |
| 100 | 220 | 180 | 115 | 18 | M16 |
| 150 | 285 | 240 | 168 | 20 | M20 |
| 200 | 340 | 295 | 219 | 22 | M20 |
Key Features of of Lap Joint Flanges
- Free rotation for easy alignment
- Quick and flexible installation
- Reduced assembly time
- Ideal for systems requiring frequent disassembly
- Compatible with different materials (stub end)
- Cost-effective solution for stainless steel piping
Applications in North Africa
Loose-fit flanges are widely used in:
Morocco
- Water treatment networks
- Food industries
Algeria
- Petrochemical industry
- Corrosive piping systems
Tunisia
- Industrial facilities
- Chemical plants
Libya
- Oil projects
- Energy infrastructure
Egypt
- Water treatment
- Pharmaceutical industries
They are particularly suited to systems requiring ease of maintenance and installation flexibility .
Manufacturing & Quality Control
At Emirerri Steel Tunisia:
- Selection of certified raw materials
- Precision cutting and forging
- CNC Machining
- Dimensional inspection
- Non-destructive testing (UT, MPI)
- EN Certification
Why Choose Emirerri Steel Tunisia?
- Reliable supplier in North Africa
- Products compliant with EN & AFNOR
- Competitive prices
- Fast delivery
- Wide range of sizes available
- Expert technical support
Packaging & Delivery
- Sturdy wooden crates
- Corrosion protection
- Marking compliant with standards
- Delivery to Casablanca, Algiers, Tunis, Tripoli, Alexandria
Conclusion
Emirerri Steel Tunisia is your trusted partner for Lap Joint flanges in North Africa , offering products that comply with EN 1092-1 and AFNOR standards .
Thanks to their flexible design and compatibility with stub ends, these flanges are ideal for systems requiring easy installation, precise alignment, and regular maintenance. They guarantee performance, durability, and efficiency in industrial environments in Morocco, Algeria, Tunisia, Libya, and Egypt.