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{"title":"304L 304 Stainless Steel Flanges JIS Raised Face Weld Neck Flange","imgUrl":"https:\/\/img.chinax.com\/nimg\/4d\/75\/3fcdcd5b715a94d954fbfe8d1a7c-200x200-1\/304l_304_stainless_steel_flanges_jis_raised_face_weld_neck_flange.jpg","attrs":{"Material":"304, 304L, 316, 316L","Application":"Connection, Decoration, oil and gas, Automative, New Energy","Standard":"ASTM, AISI, GB, JIS","Flange face type":"RF (Raised Face), RTJ (Ring Type Joint)"}}
{"title":"ASTM 304 304L 300LB Ss Raised Face Threaded Stainless Steel Flanges","imgUrl":"https:\/\/img.chinax.com\/nimg\/15\/c8\/59ad0711a956a42eaf716558260e-200x200-1\/astm_304_304l_300lb_ss_raised_face_threaded_stainless_steel_flanges.jpg","attrs":{"Brand Name":"Yuhao","Model Number":"Silp on flanges","Certification":"ISO, API, BV, CE ...","Place of Origin":"China"}}
{"title":"Hydrostatic Test Certified Forged Stainless Steel Flanges for Seamless","imgUrl":"https:\/\/img.chinax.com\/nimg\/b9\/6b\/46b0904312a81c2c087d5ff7a658-200x200-1\/hydrostatic_test_certified_forged_stainless_steel_flanges_for_seamless_integration_in_fluid_systems.jpg","attrs":{"Connection Type":"Weld Neck, Slip On, Blind, Socket Weld, Threaded, Lap Joint","Facetype":"Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)","Certification":"ISO 9001","Price":"FOB\/CIF Price, Subject To Size, Material, Pressure Class; Quotation Upon Drawings\/specifications"}}
{"title":"Passivated Corrosion Resistant Stainless Steel Flanges Forged with DN6-DN800","imgUrl":"https:\/\/img.chinax.com\/nimg\/c3\/19\/38d9aa13aa4c6c599bc004953055-200x200-1\/passivated_corrosion_resistant_stainless_steel_flanges_forged_with_dn6_dn800_diameter_range_for_oil_gas_and_water_pipeline_systems.jpg","attrs":{"Diameter Range":"DN6-DN800","Weight":"Varies By Size And Type","Delivery Time":"10\u201125 Working Days For Stock Items; 25\u201140 Working Days For Customized Forging Orders","Testing":"Ultrasonic Test, PMI, Hydrostatic Test"}}
{"title":"Antirust Oil Coated Stainless Steel Flanges 100% Test Before Delivery with DN15","imgUrl":"https:\/\/img.chinax.com\/nimg\/82\/18\/f3034a7e9d5c328a602025b52540-200x200-1\/antirust_oil_coated_stainless_steel_flanges_100_25_test_before_delivery_with_dn15_dn1800_dimensions.jpg","attrs":{"Surface Treatment":"Antirust Oil","Weight":"Varies By Size And Type","Test":"100% Test Before Delivery","Payment Terms":"EXW\/FOB\/CIF\/CFR Acceptable"}}
{"title":"Stainless Steel Flanges SS Flanges DN15-DN1800 Class 150-1500 Antirust Oil","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/7a\/321cec81b5f823fbdc6d4b2c2fe3-200x200-1\/stainless_steel_flanges_ss_flanges_dn15_dn1800_class_150_1500_antirust_oil_coated_for_industrial_piping_systems.jpg","attrs":{"Packaging Details":"Anti\u2011rust Paper Wrapped, Packed In Seaworthy Plywood Wooden Cases; Palletized For Bulk Shipment","Quality Control":"\u00b10.01mm","Weight":"Varies By Size And Type","Dimensions":"DN15-DN1800"}}
Our 304/316 Stainless Steel Sight Glass Flange (Viewing Flange) is a specialized connecting and observation component designed for real-time monitoring of liquid, gas, or solid media in industrial piping systems and equipment. Combining the functionality of a standard flange with an integrated sight glass, it allows operators to visually inspect media flow, level, color, and clarity without disassembling the pipeline, ensuring process safety and operational efficiency. Crafted from premium 304 and 316 stainless steel, this flange delivers exceptional corrosion resistance, high-temperature tolerance, and structural reliability, making it suitable for a wide range of harsh industrial environments.
Unlike ordinary flanges, our sight glass flange features a seamless integration of a precision sight glass (borosilicate glass or quartz glass) with a stainless steel flange body, ensuring leak-proof performance and clear observation. It is widely used in industries where visual monitoring is critical, such as chemical processing, food and beverage production, and oil & gas operations, providing a cost-effective and reliable solution for process control and safety management.
Key Features & Advantages
Dual-Grade Corrosion Resistance:304 stainless steel offers excellent resistance to general corrosion, suitable for standard industrial media (water, air, non-corrosive liquids). 316 stainless steel, enhanced with molybdenum, provides superior protection against chlorides, acids, and marine environments, ideal for harsh corrosive media.
Global Standard Compliance:Fully adheres to international standards including ASTM A182 (material), ANSI B16.5 (flange dimensions), ensuring interchangeability with global piping systems and equipment, suitable for domestic and overseas projects.
Clear Visual Monitoring:Equipped with high-transparency borosilicate or quartz sight glass (optional), offering excellent light transmission and clarity for real-time observation of media flow, level, and condition, helping to detect abnormalities promptly.
Leak-Proof Design:Precision-machined flange body and sight glass seal (PTFE or graphite gasket) ensure tight, leak-proof connection, preventing media leakage and ensuring operational safety in high-pressure or high-temperature environments.
High Temperature & Pressure Resistance:Suitable for operating temperatures up to 300°C (depending on sight glass type) and pressures ranging from Class 150 to Class 600 (PN6-PN40), adapting to various industrial process requirements.
Easy Installation & Maintenance:Standard flange design allows easy installation and alignment with existing piping systems. The detachable sight glass enables convenient cleaning, replacement, and maintenance without disrupting the entire pipeline.
Durable & Reliable:Rugged stainless steel flange body and high-strength sight glass resist impact, wear, and chemical erosion, ensuring long service life and minimizing maintenance needs in continuous operation.
Applications
Our 304/316 Stainless Steel Non-standard Flanges are widely used in projects with special requirements, including:
Chemical Processing (monitoring corrosive liquids, reactants, and process flows)
Yuhao Stainless Steel: Your Trusted Partner in Industrial Pipe Fittings
Company Overview
Since its establishment in 2018, YuHao Stainless Steel has remained steadfast in its commitment to excellence. Today, we stand as a specialized manufacturer of industrial pipe fittings, seamlessl... Yuhao Stainless Steel: Your Trusted Partner in Industrial Pipe Fittings
Company Overview
Since its establishment in 2018, YuHao Stainless Steel has remained steadfast in its commitment to excellence. Today, we stand as a specialized manufacturer of industrial pipe fittings, seamlessl...
