International Standards:
- ASME B16.5(U.S. Standard):Class 150, 300, 600, 900, 1500, 2500
- EN 1092-1(European Standard): PN6 to PN40.
- JIS B2220(Japanese Industrial Standard):5K to 30K
- GOST 12820-80(Russian/CIS Standard): 0.1 MPa to 2.5 MPa
- SABS 1123(South African Standard): PN6 to PN25.
- DIN 2573 : PN6 to PN40.
- BS 4504(British Standard): PN6 to PN40.
Pros：
- Neck Design: Reinforces structural integrity and distributes stress.
- Weld Requirements: Internal fillet weld + external weld for secure attachment.
- Cost-Efficiency: Less material-intensive than weld neck flanges but stronger than plate flanges.
Cons：
- Not for Extreme Conditions: Avoid high-pressure(>PN40/Class600), high-temperature (>400°C), or cyclic loading systems.
- Alignment Sensitivity: Requires precise pipe alignment during installation.
Description
Raised Face Slip-On Flange (also called Hubbed Slip-On Flange or SO Flange) is a type of flange with a short cylindrical neck (hub) that allows the pipe to be inserted and fillet-welded to both the inner and outer surfaces of the flange. It combines the ease of installation of a slip-on flange with the enhanced strength of a hub, making it suitable for moderate-pressure applications.
Sophia Crystalyn –
For a last-minute project add-on, the factory leveraged reserved inventory to dispatch the order within 48 hours, ensuring no timeline disruptions. Thanks.