Plate flanges (slip-on) – EN 1092-1 Type 01
Plate flanges slide over the pipe and are fillet-welded inside and outside – the most widely used and most economical flange. We manufacture them to EN 1092-1 Type 01 (DIN 2501), JIS B2220 and ASME B16.5 from PN 2.5 to PN 100, and in custom sizes up to DN 3000 for water, power and infrastructure projects.
Technical summary
- Standards
- EN 1092-1 Type 01 (DIN 2501), JIS B2220, ASME B16.5
- Pressure class
- PN 2.5 – PN 100 · JIS 5K – 20K
- Size range
- DN 15 – DN 3000
- Materials
- Carbon steel S235JR, P245GH / P250GH, ASTM A105 / A105N; stainless 304, 304L, 316, 316L, 316Ti, 321
- Facing
- RF or FF
- Coating
- Black (oiled), hot-dip galvanized or painted
- Certificate
- EN 10204 3.1 material certificate on request
Typical applications
- Water, wastewater and treatment plants
- Heating, cooling and fire-protection piping
- Pumping stations and valve connections
- Low to medium pressure industrial lines
Selection notes
- PN 10 and PN 16 plate flanges share the same drilling up to DN 150; larger sizes differ
- Large plate flanges (above DN 600) are plasma-cut and CNC-machined to your drawing
- On stainless lines, a loose flange with a stainless collar can reduce cost
Dimensions and weights
PN16 plate flanges · EN 1092-1 Type 01
| Size | OD D (mm) | Bolt circle K (mm) | Holes | Thickness (mm) | Weight (kg) | Bolts |
|---|---|---|---|---|---|---|
| DN15 | 95 | 65 | 4 × Ø14 | 14 | 0.6 | M12 |
| DN20 | 105 | 75 | 4 × Ø14 | 16 | 0.9 | M12 |
| DN25 | 115 | 85 | 4 × Ø14 | 16 | 1.0 | M12 |
| DN32 | 140 | 100 | 4 × Ø18 | 18 | 1.7 | M16 |
| DN40 | 150 | 110 | 4 × Ø18 | 18 | 1.8 | M16 |
| DN50 | 165 | 125 | 4 × Ø18 | 20 | 2.5 | M16 |
| DN65 | 185 | 145 | 8 × Ø18 | 20 | 2.9 | M16 |
| DN80 | 200 | 160 | 8 × Ø18 | 20 | 3.3 | M16 |
| DN100 | 220 | 180 | 8 × Ø18 | 22 | 4.0 | M16 |
| DN125 | 250 | 210 | 8 × Ø18 | 22 | 5.0 | M16 |
| DN150 | 285 | 240 | 8 × Ø22 | 24 | 6.5 | M20 |
| DN200 | 340 | 295 | 12 × Ø22 | 26 | 9.0 | M20 |
| DN250 | 405 | 355 | 12 × Ø26 | 29 | 13.3 | M24 |
| DN300 | 460 | 410 | 12 × Ø26 | 32 | 17.5 | M24 |
PN10 plate flanges · EN 1092-1 Type 01
| Size | OD D (mm) | Bolt circle K (mm) | Holes | Thickness (mm) | Weight (kg) | Bolts |
|---|---|---|---|---|---|---|
| DN15 | 95 | 65 | 4 × Ø14 | 14 | 0.59 | M12 |
| DN20 | 105 | 75 | 4 × Ø14 | 16 | 0.85 | M12 |
| DN25 | 115 | 85 | 4 × Ø14 | 16 | 1.01 | M12 |
| DN32 | 140 | 100 | 4 × Ø18 | 18 | 1.7 | M16 |
| DN40 | 150 | 110 | 4 × Ø18 | 18 | 1.8 | M16 |
| DN50 | 165 | 125 | 4 × Ø18 | 20 | 2.5 | M16 |
| DN65 | 185 | 145 | 4 × Ø18 | 20 | 3.0 | M16 |
| DN80 | 200 | 160 | 8 × Ø18 | 20 | 3.3 | M16 |
| DN100 | 220 | 180 | 8 × Ø18 | 22 | 4.0 | M16 |
| DN125 | 250 | 210 | 8 × Ø18 | 22 | 5.0 | M16 |
| DN150 | 285 | 240 | 8 × Ø22 | 24 | 6.5 | M20 |
| DN200 | 340 | 295 | 8 × Ø22 | 24 | 8.5 | M20 |
| DN250 | 395 | 350 | 12 × Ø22 | 26 | 11.0 | M20 |
| DN300 | 445 | 400 | 12 × Ø22 | 26 | 12.3 | M20 |
All dimensions in mm; weights are catalogue values (±5%). Click a size for bolting data and stud lengths. Approximate USD prices are on the flange dimensions page. Larger sizes and other pressure classes are made to order.
Why Yazıcı Endüstri?
We have manufactured flanges and pipe fittings in our own factory in Esenyurt, Istanbul since 1998. Plasma cutting, CNC turning and drilling, welding and inspection are all done under one roof, so we control lead time and quality without middlemen.
Export and shipping
- Quotations in USD or EUR, usually within the working day
- Seaworthy packing on pallets or in wooden crates
- EN 10204 3.1 material certificates and marking on each flange
- Shipments by road, sea and air from Istanbul
What to include in your enquiry
- Standard (EN 1092-1 or ASME B16.5) and pressure class (PN or Class)
- Size (DN or inch) and quantity
- Material grade and face type (RF, FF, RTJ)
- Certificate and coating requirements, if any
Frequently asked questions
What is a plate flange?
A plate flange (slip-on plate flange, EN 1092-1 Type 01, formerly DIN 2501/2576) is a flat flange that slides over the pipe and is fillet-welded inside and outside. It is the most common and most economical flange type.
Are PN10 and PN16 plate flanges interchangeable?
Up to DN 150, PN 10 and PN 16 flanges have the same outside diameter, number of holes and bolt circle, so they can be bolted together; the joint is then rated for the lower class (PN 10). From DN 200 the drilling is different.
For which pressures are plate flanges used?
Plate flanges are normally used on lines from PN 2.5 to PN 40, and can be made up to PN 100 according to EN 1092-1. For high pressure, high temperature or vibration a weld neck flange is recommended.
How much does a DN100 PN16 plate flange weigh?
About 4 kg (catalogue value). It has an outside diameter of 220 mm, a bolt circle of 180 mm and 8 holes for M16 bolts.