Black Painted Carbon Steel Blind Flange

A blind flange is a solid, disk-shaped piping component designed to seal the open end of a pipe, valve, or fitting, blocking the flow of fluids and isolating sections of a piping system. This model is constructed from carbon steel and finished with a durable black paint coating, which provides basic protection against corrosion, rust, and minor environmental wear.

The flange features pre-drilled bolt holes that align with mating flanges, allowing it to be securely fastened in place. Its raised, serrated sealing surface, when paired with a gasket, creates a tight, leak-proof seal that can withstand low to medium pressure conditions. This makes it ideal for applications such as system maintenance, pressure testing, or permanently closing unused pipe openings in water supply, HVAC, and industrial process systems.

The black paint coating enhances its resistance to moisture and atmospheric corrosion, extending its service life in both indoor and outdoor installations. As a cost-effective solution, this blind flange is widely used in piping projects where reliable isolation and sealing are required.