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{"title":"Sanitary Electropolished Blind Stainless Steel Flanges FDA 3-A Compliant","imgUrl":"https:\/\/img.chinax.com\/nimg\/9a\/a2\/f0ad15f1d411caa9b93ad03421e4-200x200-1\/sanitary_electropolished_blind_stainless_steel_flanges_fda_3_a_compliant.jpg","attrs":{"Brand Name":"Yuhao","Model Number":"flanges","Certification":"ISO, API, BV, CE ...","Place of Origin":"China"}}
{"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"}}
Stainless Steel Blind Flange is a hygiene-focused sealing component engineered for cleanroom environments and sanitary piping systems. Crafted from food-grade 316L stainless steel with a high-polish finish (Ra ≤ 0.8μm), it eliminates crevices and rough surfaces that harbor contaminants, making it perfect for food & beverage processing, pharmaceutical manufacturing, biotech labs, and cosmetic production facilities.
Its core advantages lie in sanitary design and easy sterilization. The seamless forged structure and electropolished surface comply with FDA, GMP, and 3-A Sanitary Standards, ensuring no cross-contamination of media. It supports frequent CIP (Clean-in-Place) and SIP (Sterilize-in-Place) processes, with a leak-tight seal that maintains the sterility of closed piping systems, while the smooth finish simplifies cleaning and reduces maintenance downtime.
Compliant with ASME B16.5, 3-A Sanitary Standards, and DIN 11851, our blind flanges cover sizes from 1/2" to 24" for small-batch labs and large-scale production lines. Each unit undergoes hygiene testing and surface roughness verification, with material certificates confirming food-grade compliance. The compatible sanitary gaskets (EPDM, silicone) ensure no toxic leaching, matching the strict requirements of clean industries.
As a sanitary flange specialist, we focus on contamination-free design and precision polishing. Our team provides tailored solutions—including custom polish levels and gasket matching for specific hygiene needs—and offers guidance on CIP/SIP integration. We also supply sterile packaging to maintain product cleanliness before installation in cleanroom environments.
For food, pharmaceutical, and cleanroom piping systems requiring uncompromising hygiene and sterility, our Stainless Steel Blind Flange is the ideal choice. Partner with us for sanitary-grade flanges that meet global hygiene regulations and ensure product safety.
►Product Size
DN
Pipe OD
Connection Size
Flange Thickness(mm) C
Flagne ID
A
B
Flange OD
Bolt Hole Circle Diameter
A
B
10
17.2
14
90
60
14
18
15
15
21.3
18
95
65
14
22.5
19
20
26.9
25
105
75
16
27.5
26
25
33.7
32
115
85
16
34.5
33
32
42.4
38
140
100
18
43.5
39
40
48.3
45
150
110
18
49.5
46
50
60.3
57
165
125
19
61.5
59
65
76.1
76
185
145
20
77.5
78
80
88.9
89
200
160
20
90.5
91
100
114.3
108
220
180
22
116
110
125
139.7
133
250
210
22
143.5
135
150
168.3
159
285
240
24
170.5
161
200
219.1
219
340
295
24
221.5
222
250
273
273
395
350
26
276.5
276
300
323.9
325
445
400
26
328
328
350
355.6
377
505
460
28
360
381
400
406.4
426
565
515
32
411
430
450
457
480
615
565
36
462
485
500
508
530
670
620
38
513.5
535
600
610
630
780
725
42
616.5
636
►Shot Shoot
►FAQ
Q1: Delivery time?
A: 1- 7 days for small order.10- 20 days for big order.
Q2: Are you manufacturer or trading company?
A: We are not only manufacturer but also a trading company,we have more than 12years export experience.
Q3: What is your minimum order quantity?
A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.
Q4: Do you provide samples ? Is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q5: How long is your production lead time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
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...
