Standard blind flange
标准盲法兰
Flanges / Flanges
Standard blind flange
标准盲法兰
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Product Introduction
Standard blind flanges and eight‑shaped blind flanges
This product is a high-performance pipeline isolation component, suitable for shut-off and flow‑diversion operations in standard piping systems. It combines two functions: the blind flange section provides complete pipeline isolation, while the throttling ring section ensures normal fluid flow, enabling safe and rapid maintenance without requiring a full‑line shutdown.
Processing technology: Forging, hot pressing forming
Specifications and dimensions: 1/2 inch to 48 inches / DN15 to DN1200
Pressure rating: 150#～2500#
Material: ASTM A105N, A182 F304/L, F316/L, A350 LF2, alloy steels; materials compliant with NACE MR-0175 for sulfur‑resistant service are available.
Implementation Standard: ASME B16.5, ASME B16.48, GB/T 9112–9124, EN 1092
Test items: Ultrasonic, magnetic particle, penetrant, and radiographic nondestructive testing; hydrostatic testing; chemical composition and mechanical property analysis of materials.
Application areas: Petrochemical, natural gas, power plant, shipbuilding, and general industrial piping
Customized Services
Custom-designed to non‑standard specifications—such as unique dimensions, pressure ratings, materials, and sealing‑face configurations—based on customer drawings, technical agreements, and specific operating conditions. We also offer tailored anti‑corrosion coating solutions and specialized testing protocols to meet the personalized requirements of diverse projects.