ASTM A105 CL150 ANSI B16.5 Forged Blind Flange is closed-die hot forged heavy-duty blank flange, professionally developed for onshore oilfield, natural gas station, refinery auxiliary pipeline temporary isolation and pressure testing closure. Different from ordinary rolled carbon steel blind flange, high-temperature closed die forging optimizes internal metal grain arrangement, eliminating internal air pores and lamination defects, improving low-temperature toughness and pressure impact resistance for outdoor oil & gas harsh working conditions.
CL150 pound-class pressure grade bears 2.07MPa rated working pressure, thickened integral solid disc can bear pipeline hydraulic burst test pressure, the preferred fitting for pipeline factory pressure inspection and commissioning sealing. Inch-size CNC drilling fully compliant with ANSI standard, interchangeable with American standard pipe valves and mating flanges, no field modification required for old US-standard oil piping renovation. Precision ground RF sealing face matches spiral wound oil-resistant metal gasket, airtight sealing for crude oil, natural gas, diesel fuel medium.
Surface coated high-adhesion fuel-resistant epoxy anti-corrosion coating, scratch-resistant, weather-resistant, anti-oil immersion for long-term outdoor oilfield exposure. Every piece passes ultrasonic flaw detection, hydraulic burst test and hardness inspection to eliminate forging defects. Size 1/2''-24'' inch oilfield standard size in stock. Bolted quick disassembly, convenient for pipeline pressure test removal and formal pipe connection. Widely used for gas station pipe end sealing, oilfield branch isolation, petrochemical pipeline commissioning plug. Support SGS third-party inspection, FOB port delivery, 14-month oil-gas heavy-duty warranty, original A105 test certificate provided.
Core Spec: Standard: ANSI B16.5; Pressure: CL150; Material: ASTM A105 Closed Die Forged Carbon Steel; Face: RF; Size: 1/2''-24''; Process: Hot Forging + Stress Relief Annealing
FAQ: Q: Used for pipeline pressure testing? A: Yes, forged thickened structure supports pipeline hydraulic pressure test safely.
