Slip-On Flanges
Slides over the pipe end and is fillet-welded both inside and out. Easier to align and lower in cost than a weld neck, it is well suited to low- and moderate-pressure lines.
Technical Data
| Slip-On Flanges — specification | |
|---|---|
| Size range | ½–24″ NPS |
| Rating | 150–900 ASME class |
| EN rating | PN 2.5–40 EN 1092-1 |
| Attachment | 2× fillet weld |
| Pressure | Class 150–600 / PN6–PN40 |
| Standards | ASME B16.5 ≤24" · EN 1092-1 Type 01 DN650–DN1200 |
| Material | Carbon steel; stainless |
| Facing | RF / FF |
| Connection | Over pipe OD, fillet welded |
| ASTM A105 | Forged carbon steel |
| ASTM A182 | F304/F304L · F316/F316L (stainless) |
| ASTM A350 LF2 | Low-temperature carbon steel |
| EN 1092-1 | P245GH · P265GH · 1.4301 · 1.4404 |
Key points
- Lower-pressure water & utility lines
- General process & distribution piping
- Tank & vessel nozzle connections
- Where field alignment ease matters
- Retrofit & maintenance work
Drawing & Dimensions
Dimensioned drawing from the YTM Pipe flange catalogue (Class 150 shown). Dimensions and drilling to ASME B16.5 / B16.47 — complete class tables in the datasheet download.
Click the drawing to enlargeDatasheet & Documents
The official Slip-On Flanges datasheet — specification, materials, standards and the complete dimension tables.
ISO 9001:2015 certified quality
How to Order
Worked example
SLIP-ON · 4″ · Class 150
ASME B16.5 · RF (1.6 mm)
ASTM A105
MTC EN 10204 3.1Also in This Range
Questions & Answers
What is a slip-on flange?
A slip-on flange slides over the outside of the pipe and is fillet-welded on both the inside and outside. It is easier to align than a weld neck flange and costs less, and suits low- to moderate-pressure service. It follows ASME B16.5 to 24" and EN 1092-1 Type 01 above that.
What size range do you supply for slip-on flanges?
½–24″ NPS. Other sizes can usually be supplied on request — send your requirement for confirmation.
Which standards and grades are available?
ASTM A105: Forged carbon steel · ASTM A182: F304/F304L · F316/F316L (stainless) · ASTM A350 LF2: Low-temperature carbon steel. See the datasheet for the complete list.
What materials are offered?
Carbon steel; stainless.
Is a technical datasheet available?
Yes — the official YTM Pipe datasheet with dimensions, materials and standards can be downloaded on this page.
How do I get a price?
Send size, specification and quantity through the Request-a-Quote form, WhatsApp or [email protected] — our team responds within one business day.
Slip-On Flanges. Specified. Checked. Delivered.
Manufactured and supplied to the governing standard, inspected and documented before dispatch.