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ANSI B16.48 FIGURE 8 FLANGE ,CARBON STEEL FLANGE

ANSI B16.48 Figure 8 Flange, Size 10 inch, Pressure Class 300, Material Carbon Steel ASTM A516 GR.50, Flange End Connect: Raised Face,Standard ANSI B16.48

ASTM A182 F316L BLIND FLANGE, ANSI B16.5 STANDARD FLANGE

ASTM A182 F316L Blind Flange, Size 6 inch, Pressure Class 150, Material Stainless Steel ASTM A182 F316L, Flange End Connect: Raised Face , Standard ANSI B16.5

FIGURE 8 FLANGE ,ASTM A350 LF2 FLANGE

Figure 8 Flange, Size 8inch, Pressure Class 150, Material Carbon Steel ASTM A350 LF2, Flange End Connect: Raised Face,Standard ANSI B16.48

ASTM A182 F304L STAINLESS STEEL BLIND FLANGE

ASTM A182 F304L Blind Flange, Size 4 inch, Pressure Class 300, Material Stainless Steel ASTM A182 F304L, Flange End Connect: Raised Face , Standard ANSI B16.5

CHINA BLIND FLANGE ,ANSI B16.5 STANDARD FLANGE

China Blind Flange, Size 3 inch, Pressure Class 150, Material Carbon Steel ASTM A105, Flange End Connect: Raised Face , Standard ANSI B16.5

ASTM A350 LF2 SLIP ON FLANGE, RAISE FACE FLANGE

ASTM A350 LF2 Slip On Flange, Size 26 inch, Pressure Class 150, Material Carbon Steel ASTM A350 LF2, Flange End Connect: Raised Face , Standard ANSI B16.5

Industrial Flange Solutions: Comprehensive Guide to Blind Flanges, SO Flanges & Weld Neck Flanges

Selecting the right flange is critical for pipeline system safety and efficiency. This guide explores three essential flange types—Blind Flanges, SO Flanges (Slip-On Flanges), and Weld Neck Flanges—detailing their technical specifications, applications, and industry standards to help you optimize your projects.


1. Blind Flange: Reliable Pipeline Termination

Blind flanges are designed to seal pipe ends permanently or temporarily, ideal for pressure testing, maintenance isolation, or future system expansion.

  • Key Features: ASME B16.5/EN 1092-1 certified | Carbon steel/Stainless steel/Duplex options | High-pressure sealing performance

  • Common Uses: Oil & gas storage tanks | Water treatment systems | Industrial equipment inspection ports

2. SO Flange (Slip-On Flange): Cost-Effective Connection

SO flanges offer quick installation and budget-friendly performance for low-to-medium pressure pipelines.

  • Key Features: Dual-welded design for stability | Easy pipe alignment | Reduced labor costs

  • Common Uses: HVAC systems | Food-grade piping | Low-pressure steam lines

3. Weld Neck Flange: High-Performance for Extreme Conditions

Engineered for high-temperature and high-pressure environments, weld neck flanges ensure superior stress distribution and durability.

  • Key Features: Tapered hub welding technology | Fatigue-resistant design | API 6A/ASME B16.25 compliance

  • Common Uses: Subsea oil pipelines | Power plant boilers | Chemical processing reactors


Why Choose Our Flange Products?

✅ Global Certifications: ISO 9001, PED 2014/68/EU, and API Q1 compliant
✅ Custom Solutions: Tailored dimensions, materials (Inconel, Titanium), and face types (RF, FF, RTJ)
✅ Fast Shipping: 20,000+ in-stock flanges | 48-hour expedited delivery for urgent orders