A blind flange end is a solid plate used to seal the end of a piping system or close off unused nozzles on a pressure vessel. It does not have a center bore and is typically bolted to a matching flange. At Jizhong, we manufacture precision blind flanges that comply with international standards such as ASME, ANSI, DIN, and EN.
Our blind flange ends are ideal for:
- Permanently or temporarily closing pipe ends
- Isolating sections for pressure testing
- Sealing unused connections on tanks or reactors
- Protecting critical components during maintenance
Product Advantages – Why Choose Jizhong?
- Reliable Sealing – Leak-proof under high pressure and harsh media
- Wide Material Options – Carbon steel, stainless steel, ductile iron, and custom alloys
- Surface Finish Precision – Matches raised face (RF) or flat face (FF) flange systems
- Custom Machining Available – For non-standard or retrofit applications
- Global Standards – Manufactured to ASME B16.5, B16.47, DIN, and more
Gasket Pairing Recommendations
For maximum sealing efficiency, Jizhong recommends using appropriate gaskets based on the flange face type:
| Flange Type | Recommended Gasket |
|---|---|
| Raised Face (RF) | Standard ring gasket (e.g., PTFE, spiral wound, compressed fiber) |
| Flat Face (FF) | Full-face gasket to cover the entire sealing surface |
Note: Jizhong does not recommend using solid-center (no-ID) gaskets with blind flanges. These may lead to pressure build-up, fluid entrapment, and potential safety hazards.
Common Applications of Blind Flange Ends
Our blind flanges are trusted across multiple industries:
- Oil & Gas
- Chemical Processing
- Water Treatment Plants
- Power & Energy
- Shipbuilding & Marine
- Pharmaceutical & Food Industry
- Fire Protection Systems
Spectacle Blind Option Also Available
Jizhong also supplies spectacle blinds, ideal for frequent pipeline isolation. These components combine an open ring and blind plate in a single rotating unit, maintaining consistent flange spacing during switching. Contact us for available sizes and materials.
Specifications
| Parameter | Description |
|---|---|
| Sizes Available | ½” to 48” (DN15 to DN1200) |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 |
| Materials | CS, SS304/316, Alloy Steel, Ductile Iron |
| Standards | ASME B16.5 / B16.47, DIN 2527, EN 1092-1 |
| Surface Finish | Smooth, Serrated, or Custom |
| Facing Type | RF / FF / RTJ |
Global Supply & Customization
Jizhong offers flexible solutions for both bulk and project-based orders. We ensure:
- Timely delivery to Asia, Africa, Middle East, Europe & North America
- Packaging options (pallets, crates, export boxes)
- Third-party inspection on request (SGS, BV, TUV)
- Custom logo or marking available
Request a Quote
Need a blind flange end for your next project?
📩 Contact our sales team at info@archpipe.com
Jizhong – Your Trusted Manufacturer of Blind Flange Ends and Pipe Fittings.
Engineered to Seal. Built to Last.
