Premium Industrial Stainless Steel Blind Flange, | RFQ Sourcing Details
Industrial Pumps · Quote on request
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Original product description
Stainless Steel Forged BL Flange Product Description A Stainless Steel Blind Flange, also known as a blank flange or a flange cover, is a crucial piping component with a solid, non-perforated center, designed to comple movable seal , serving as a standard isolation method during pipeline inspection, cleaning, testing, or modification.
Primary Function Sealing & Isolation : Permanently or temporarily seals pipe ends;isolates system sections for maintenance. Safe Maintenance : Provides safe conditions for system upkeep, cleaning, or component replacement. Prevent Flow Mixing : Prevents accidental mixing of media at junctions of different pipelines.
Structure & Connection Solid Disc : No central bore, typically with bolt holes matching the companion flange. Removable Connection : Connected via bolts to the companion flange, allowing for easy repeated installation/removal.
Sealing Face Type : Common types include Raised Face (RF), Flat Face (FF), Male-and-Female (MFM), Ring-Type Joint (RTJ). Common Material Grades 304/304L : General-purpose, corrosion and heat resistant. 304L has lower carbon content for better intergranular corrosion resistance.
316/316L : Added molybdenum significantly enhances chloride ion corrosion resistance, ideal for harsh environments (marine, chemical). Other Special Grades : 321, 347 (heat resistant);309S, 310S (heat resistant);Duplex Steel 2205/2507 (high strength, high corrosion resistance).
Manufacturing Standards & Specs Pressure Ratings : ASME (e.g., Class 150, 300, 600, 900, 1500, 2500);EN/GB (e.g., PN6, PN10, PN16, PN25, PN40). Size Range : Typically from 1/2 inch to 60 inches (DN15 to DN1500+), with some standards covering wider ranges.
Common Standards : ASME B16.5, ASME B16.47 (US);EN1092 (EU);JIS B2220 (Japan);GB/T (China). Typical Applications Petrochemical, Natural Gas Processing, Offshore Engineering, Power (including Nuclear), Pharmaceutical, Food & Beverage, Water Treatment, and other industrial piping systems.
Product Parameters Material 304,304L,316,316L,904L,TP321,TP317,S32205,S32507,S31803,S32750,S32760,TP347 TP316T,S310S,TAI2,C276 Specification/Size DN15-DN4000 Pressure PN10-PN160;150LB-2500LB;JIS 5K-JIS 20K Standard GB,ANSI.JIS,DIN, Sealing Surface FF,RF,Rtj, Lap Joint, Tongue and Groo
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Supplier profile
Wenzhou Safety Stainless Steel Co., Ltd. focuses on filtration skids for flow control equipment sourcing, industrial pump and valve discovery, and rfq-ready process supply platform