Product Information
Stainless Steel Blind (BF) Flange
-Similar to a plug or cap
-to isolate the piping system or to closing the end of a pipe
-they are oftentimes used for high pressure applications
Product Overview
The Stainless Steel Blind Flange is a solid, disk-shaped component designed to seal the ends of pipelines, valves, or pressure vessels. Featuring no center bore, it ensures zero media leakage and is widely used in high-pressure, corrosive, or hygienic environments requiring frequent maintenance or system isolation
Key Specifications
Size Range: ½" to 60" (DN15 to DN1500), supporting compact instrumentation lines to large industrial pipelines
Pressure Ratings:
ASME B16.5 Class 150 to 2500
DIN 2576 600lb for extreme pressure conditions
Face Types:
Raised Face (RF): Enhanced sealing for medium-to-high-pressure systems
Flat Face (FF): Ideal for low-pressure or non-critical applications
Ring-Type Joint (RTJ): Specialized for ultra-high-pressure environments
Material & Manufacturing
Stainless Steel Grades:
Standard Grades: 304, 304L, 316, 316L (ASTM A182), offering resistance to acids, alkalis, and chlorides
High-Temperature Grades: 321, 347 (ASTM A182 Gr F347) for steam or oxidative media
Forging Process: Ensures superior mechanical strength and structural integrity (ASTM A105/A182)
Applications
Chemical & Petrochemical: Sealing reactors or pump outlets during maintenance
Oil & Gas: Isolating pipeline sections for pressure testing
Pharmaceutical & Food: Compliant with CIP/SIP protocols; electro-polished surfaces (Ra ≤0.8μm) for hygiene
Certifications & Compatibility
Complies with ASME B16.5, DIN 2576, and BS4504 standards
Optional NACE MR0175 certification for sour gas environments
