Tapped Blind Flange: A Comprehensive Guide by Yulong

A tapped blind flange is a specialized piping component designed to seal the end of a pipeline while incorporating a threaded hole (tap) for auxiliary connections, such as pressure gauges, vents, or drains. This dual functionality makes it invaluable in industries requiring precise flow control and system monitoring. Yulong, a trusted manufacturer of industrial flanges, delivers high-quality tapped blind flanges that meet rigorous international standards like ASTM and ASME. Below, we explore their applications, installation, benefits, and maintenance.

Applications of a Blind Flange With Tap

Tapped blind flanges are widely used in:
Pipeline Systems: To temporarily or permanently seal pipelines while allowing access for instrumentation.
Chemical Plants: For safe pressure relief or sampling in corrosive environments.
Oil & Gas: To integrate monitoring devices in high-pressure systems.
Yulong’s flanges are crafted from materials like stainless steel or carbon steel, ensuring compatibility with aggressive media and extreme temperatures.

Installation of Blind Flange With Tap 

Surface Preparation: Clean mating surfaces to prevent leaks.
Alignment: Position the flange evenly against the pipe end.
Bolt Tightening: Use a cross-pattern to secure bolts, ensuring uniform pressure (Yulong provides torque specifications for optimal performance).

Advantages of Using a Blind Flange With Tap

Versatility: Combines sealing and accessory integration in one component.
Safety: Reduces system downtime during inspections or modifications.
Durability: Yulong’s flanges undergo anti-corrosion treatments, extending service life.
Cost Efficiency: Eliminates the need for separate adapters or fittings.

Cost of a Blind Flange With Tap 

Prices vary based on size, material, and pressure ratings. Yulong offers competitive FOB pricing, with bulk discounts for large orders. For example, stainless steel flanges (ASTM A182) start at $15 per unit, while customized options are available for specialized projects.

Tips to Inspect, Test, and Maintain a Blind Flange With Tap Connection 

Visual Inspections: Check for cracks, corrosion, or bolt loosening quarterly.
Pressure Testing: Use hydrostatic tests to verify seal integrity.
Thread Maintenance: Clean and lubricate the tap periodically to prevent galling.
Gasket Replacement: Replace worn gaskets with Yulong-certified spares to avoid leaks.

Why Choose Yulong?

With ISO 9001 certification and a 20,000-ton annual production capacity, Yulong guarantees precision-machined tapped blind flanges tailored to global standards. Their dedicated support team assists with technical queries, custom designs, and logistics—ensuring seamless procurement for industrial projects.

Optimize your piping systems today with Yulong’s reliable tapped blind flanges—where innovation meets durability.