Slip-On Weld Neck Flange
- Cost-effective: Lower cost compared to welding neck flanges, economical and practical
- Higher Strength: Necked design with higher strength than ordinary slip-on flanges
- Easy Installation: Slip-on connection with simple installation requiring no special welding skills
- Good Sealing Performance: Neck design improves sealing performance
- Wide Application Range: Suitable for medium-low pressure conditions with wide application
- Simple Manufacturing: Relatively simple manufacturing process with shorter delivery cycle
Slip-On Weld Neck Flange (SOWN Flange) is a flange product combining the features of slip-on flanges and necked flanges, offering both the economy of slip-on flanges and the strength and sealing performance of necked flanges. The product connects to the pipe through slip-on welding but adds a neck structure to improve the overall strength and stiffness of the flange. The necked slip-on flange is suitable for non-critical medium-low pressure pipeline connections, widely used in pipeline systems in industries such as petrochemical, water treatment, HVAC and others. The flange features simple manufacturing, low cost, and convenient installation, making it one of the commonly used flange types. The product is strictly manufactured according to international and national standards such as ASME B16.5 and GB/T 9113 to ensure product quality and safety performance.
Technical Standards
| Item | Technical Standard |
|---|---|
| Material | A105, A182 F304, A182 F316, A350 LF2 |
| Pressure Rating | Class150-Class300 |
| Size Range | 1/2" to 24" (DN15 to DN600) |
| Temperature Range | -29℃ to +425℃ |
| Connection Type | Slip-On Weld Connection |
| Face Type | Raised Face (RF), Flat Face (FF), Male/Female (M/F) |
| Manufacturing Standard | ASME B16.5, ASME B16.47, GB/T 9113 |
| Inspection Standard | ASME B16.47, GB/T 9124 |
Basic Models
| Model | Type | Features |
|---|---|---|
| SOWN-150 | 150Lb Slip-On Weld Neck Flange | Low pressure application, cost-effective |
| SOWN-300 | 300Lb Slip-On Weld Neck Flange | Medium pressure application, stable performance |
| SOWN-400 | 400Lb Slip-On Weld Neck Flange | High pressure application, high strength |
| SOWN-600 | 600Lb Slip-On Weld Neck Flange | Ultra-high pressure application, safe and reliable |
Main Components Material Table
| No. | Part Name | Material |
|---|---|---|
| 1 | Flange Body | A105, A182 F304, A182 F316 |
| 2 | Sealing Face | Same as flange body or overlay alloy |
| 3 | Weld Bevel | Matched to pipe material |
| 4 | Bolt Holes | Machined as part of flange body |
| 5 | Surface Treatment | Anti-rust paint, galvanized or passivated |
| 6 | Identification Marking | Laser marking or cast lettering |
No drawing available.
