stainless steel blind flange

Product Description

Stainless Steel Blind Flange (also known as Flange Cover, Blank Flange) is a solid flange disc with no central bore. Its core function is to seal the end of pipelines and block pipeline systems, and it can also be used for temporary isolation during equipment maintenance, pipeline pressure testing, etc. Our blind flanges are made of high-quality stainless steel (304/316/316L optional), manufactured through precision forging, CNC machining and surface polishing processes. They feature excellent corrosion resistance, high temperature resistance and pressure-bearing capacity, suitable for pipeline systems in chemical, petroleum, water supply and drainage, food and pharmaceutical, environmental protection and other industries. Complying with domestic and international standards such as ASME B16.5, GB/T 9119, HG/T 20592, we also support customized non-standard sizes.

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Product Specifications & Parameters

Materials: 304 / 304L / 316 / 316L / 321 / 310S / 2205 / 2507 Duplex Stainless Steel
Custom materials available

Applicable Standards: ASTM, EN, DIN, DIS, GB, etc

Pressure Ratings: PN10, PN16, PN25, PN40, 150LB, 300LB, 600LB, etc.

Nominal Diameter: DN15-DN2000 (1/2"-80", larger diameter customization available)

Applications

Widely used in petrochemical, water supply and drainage engineering, food and beverage, pharmaceutical manufacturing, environmental protection water treatment, shipbuilding, HVAC, municipal engineering and other fields. It is used for pipeline end sealing, pipeline maintenance isolation, equipment interface sealing, pressure vessel sealing, etc., and is an indispensable sealing accessory in pipeline systems.

Why Choose Us

High-quality stainless steel material, acid and alkali resistant, corrosion-resistant, suitable for harsh working conditions such as humidity and chemical environments.
Precision machining technology, flat and smooth sealing surface, ensuring zero-leakage sealing performance.
High-strength pressure-bearing design, meeting the requirements of multiple pressure ratings such as PN16/PN25/150LB/300LB
Standardized size, compatible with same-specification weld neck/slip-on flanges, easy to install and highly versatile.
Support customized non-standard sizes, special materials and pressure ratings to meet personalized engineering needs.

Contact Us

If you need quotations, catalogues, samples or customized flange solutions, please provide us with type, size, material, pressure and standard, we will reply within 12 hours.

Packaging & Transportation

Standard export packaging: Wooden cases/pallets, with foam and protective film to avoid scratches and damages during transportation. Support sea, air and express transportation according to customer requirements.