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Flanges
1. Product Overview
Flanges are critical components in piping systems, providing removable, sealed connections for pipes, valves, and equipment while enabling easy maintenance and inspection.
Key Advantages
✔ High-Strength Connections - Withstands high pressure and extreme temperatures
✔ Removable Design - Facilitates system maintenance and component replacement
✔ Superior Sealing - Multiple face designs ensure leak-free performance
✔ Broad Compatibility - Adaptable to various piping and valve standards
2. Flange Types & Construction
By Connection Method
|
Type |
Features |
Pressure Rating |
Typical Applications |
|
Slip-On Flange |
Easy welding, cost-effective |
PN6-PN16 |
Low-pressure water systems |
|
Weld Neck Flange |
High strength, pressure-resistant |
PN16-PN420 |
High-pressure oil/chemical pipelines |
|
Socket Weld Flange |
Compact for tight spaces |
PN25-PN100 |
Instrumentation lines |
|
Threaded Flange |
No welding required |
PN10-PN40 |
Air/gas systems |
|
Lap Joint Flange |
Rotatable for alignment |
PN6-PN16 |
Large-diameter low-pressure pipes |
By Face Design
Flat Face (FF) - For low-pressure gasket sealing
Raised Face (RF) - Most common, medium-high pressure
Ring-Type Joint (RTJ) - High-pressure/temperature systems
Tongue & Groove (TG) - Hazardous media containment
Male & Female (MF) - Precise alignment requirements
3. Technical Parameters
|
Parameter |
Specification Range |
|
Size Range |
DN15-DN4000 (½"-160") |
|
Pressure Rating |
PN6-PN420 (ANSI 150-2500) |
|
Materials |
Carbon Steel, Stainless Steel, Alloy Steel |
|
Temperature Range |
-196°C to +800°C |
|
Surface Treatment |
Anti-corrosion coating, galvanizing, pickling |
4. Material Selection Guide
|
Material Standard |
Suitable Environment |
Temperature Range |
|
WCB |
Water, oil, steam |
-29°C to +425°C |
|
CF8 (304) |
Corrosive media |
-254°C to +425°C |
|
CF8M (316) |
Severe corrosion/chlorides |
-254°C to +425°C |
|
WC6 |
High-temperature steam |
Up to +593°C |
|
LCC |
Cryogenic service |
Down to -196°C |
5. Standards Compliance
ASME B16.5: Pipe flanges and flanged fittings
EN 1092-1: European flange standards
JIS B2220: Japanese industrial standards
ISO 7005: International flange standard
MSS SP-44: Steel pipeline flanges
6. Quality Assurance
100% Dimensional Inspection
Material Traceability (EN 10204 3.1/3.2)
Non-Destructive Testing (PT/MT/RT)
Hydrostatic Testing per API 598
7. Why Choose Our Flanges?
✅ Full Range Inventory - Stock from DN15 to DN2000
✅ Custom Machining - Special facing, coatings, or dimensions
✅ Complete Documentation - Mill test certificates, material reports
✅ Global Certifications - PED, GOST, ASME, CE
Request flange load calculations or CAD models!
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中国河北省衡水市棗強県興源南街20号
