Sanitary Blind Flange
The Sanitary Blind Flange is a solid circular disc component used to permanently or temporarily seal the end of a piping system, valve, or pressure vessel nozzle. Unlike other flange types, the blind flange has no through‑bore and blocks fluid flow, making it essential for system isolation, pressure testing, and maintenance shutdowns.
It is bolted to a mating flange with a gasket in between to achieve a leak‑tight seal. Manufactured from SS304 or SS316L stainless steel with a polished finish, this flange is designed for sanitary environments where cleanliness and contamination control are critical. It can also serve as an inspection access point when equipped with a removable structure.
Sanitary Blind Flange
Key Features
- Solid disc design enables full pipeline termination and positive isolation
- Non‑bore structure ensures zero leakage and full pressure containment
- Removable design allows easy system access during maintenance
- Ideal for pressure testing and line blanking operations
- High‑grade stainless steel construction ensures long service life
- Polished surfaces comply with strict sanitary and hygienic standards
- Available in SS304 and SS316L with surface roughness Ra 0.8 μm
- Meets ASME B16.5, DIN, and 3A sanitary standards
- Can be machined to raised face or flat face to match different gasket types
Technical Specifications
- Maximum Pressure: 10 bar (150 PSI)
- Minimum Pressure: Vacuum
- Operating Temperature: -20 °C to +200 °C
- Surface Roughness: Ra 0.8 um (ID/OD)
- Body Material: SS304 / SS316L
- Sealing Material: EPDM / Silicone / PTFE gasket
- Operating Mechanism: Bolted connection with gasket
Applications
- Pipeline end termination and capping
- Pressure testing of piping systems
- System isolation during maintenance
- Food and beverage processing plants
- Pharmaceutical manufacturing facilities
- Dairy production systems
- Tank and vessel nozzle blanking
- Temporary shutdown and sealing of process lines
