Thorburn UO O-Seal Never-Leak Pipe Union — Large Bore (2-1/2 in to 6 in)
Thorburn UO O-Seal large-bore pipe union. Same O-ring face-seal design as small-bore variant, scaled for high-flow lines. 316L SS body. Frequent-maintenance large-bore disconnects.
Key features
- Hose Family: Other
- Core Material: Other
- Nominal ID Range: DN 65 (2-1/2") to DN 150 (6")
- Max Working Pressure: 50 bar
- Hose Family
- Other
- Construction Type
- Smooth-Bore
- Braid Configuration
- N/A
- Core Material
- Other
- Nominal ID Range
- DN 65 (2-1/2") to DN 150 (6")
- Max Working Pressure
- 50 bar
Product description
The Thorburn UO O-Seal Never-Leak Pipe Union — Large Bore (2-1/2 in to 6 in) is a specialty quick-coupling designed for the metallic-hose service envelope. O-ring face-seal pipe union for large-bore service. Working pressure 50 bar. Operating temperature -73°C to +260°C.
Construction
- Type: Specialty Coupling — O-ring face-seal pipe union for large-bore service
- Body material: 316L SS
- End fitting: 316L SS ANSI 150# RF flanged or NPT; FKM, EPDM, or PTFE O-ring seal
- Bore range: DN 65 (2-1/2") to DN 150 (6")
- Working pressure: 50 bar (200 bar burst)
- Temperature range: -73°C to +260°C
Performance
Hydrotested at 1.5× working pressure. Per ASME B16.11, ASME B31.3. Designed for repeated connect / disconnect cycles in industrial service.
Applications
- Large-bore process plant disconnects
- Pump-station piping joints
- Tank-farm distribution headers
- High-flow utility piping
How to order
Confirm (a) end-connection size and style on each side, (b) operating pressure / temperature envelope, (c) any required certifications, (d) seal material preference (NBR / FKM / FFKM / PEEK / Teflon — drives chemical compatibility and temperature limit). Indus matches the coupling halves to your hose assemblies and supplies the matched gaskets and fasteners.
Companion products
Order in matched pairs (male and female halves) for new installations, or as service spares for existing assemblies. Indus also supplies matched seal kits for routine maintenance, plus replacement gaskets and fasteners.
Identification
| Parameter | Value |
|---|---|
| Hose Family | Other |
| Construction Type | Smooth-Bore |
| OEM Part Code | UO-LARGE |
Construction
| Parameter | Value |
|---|---|
| Braid Configuration | N/A |
| Core Material | Other |
| Braid Material | N/A (Unbraided) |
| End Fitting Material | 316L SS ANSI 150# RF flanged or NPT; FKM, EPDM, or PTFE O-ring seal |
Dimensions
| Parameter | Value |
|---|---|
| Nominal ID Range | DN 65 (2-1/2") to DN 150 (6") |
| Bend Radius (Static) | 0 mm |
| Bend Radius (Dynamic) | 0 mm |
| Live Length for Vibration | 0 mm |
| Weight | 0 kg/m |
Performance
| Parameter | Value |
|---|---|
| Max Working Pressure | 50 bar |
| Min Burst Pressure | 200 bar |
| Safety Factor | 4 |
| Min Operating Temperature | -73 °C |
| Max Operating Temperature | 260 °C |
Compliance
| Parameter | Value |
|---|---|
| ISO 10380 Class | N/A |
| PED 2014/68/EU Module | Module A |
| ASME Compliance | ASME B16.11, ASME B31.3 |
| NACE MR0175 / ISO 15156 | yes |
Shipping & lead time
What is this coupling used for?▾
What is the working pressure rating?▾
What is the operating temperature range?▾
What body and seal materials are used?▾
Can this coupling be used in sour-service (H₂S) installations?▾
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Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations
The same part, in the designations used across European and Gulf trade catalogues.
- de
- Met-O-Seal Typ UO Verschraubung
- fr
- Met-O-Seal type UO union
- es
- Met-O-Seal tipo UO unión
- it
- Met-O-Seal tipo UO giunto