Zhejiang Yuhao Stainless Steel Co., Ltd
                                                                                                           
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8 Years
Since 2018
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Stainless Steel Blind Flange - Corrosion-Proof Seal, Versatile for Industrial & Marine Piping

Price Negotiable
Price: Negotation
MOQ: 100KGS
Delivery Time: 2-10 work days
Brand: Yuhao
Product Description

Stainless Steel Blind Flange



►Product Description

Stainless Steel Blind Flange is a versatile sealing component engineered to cap, isolate, and protect pipe ends across diverse industrial sectors. Crafted from high-grade corrosion-resistant materials—316Ti, super austenitic stainless steel, and marine-grade alloys—it excels in harsh, corrosive environments like coastal/marine projects, chemical processing, desalination plants, and offshore oil & gas operations.

Its core strengths lie in enhanced corrosion resistance and application flexibility. Unlike standard blind flanges, it features a specialized surface treatment (passivation, pickling) to resist saltwater, acidic, and alkaline media erosion. The optimized disc thickness balances structural rigidity and weight, making it suitable for both onshore low-pressure systems and offshore high-vibration environments, while ensuring easy bolting and sealing with standard gaskets.

Compliant with ASME B16.47 (large diameter), DIN 2502, and JIS B2220 standards, our blind flanges cover sizes from 1/2" to 96", including custom large-diameter options for marine and infrastructure projects. Each unit comes with material certification and corrosion resistance test reports, meeting marine industry (ABS, DNV) and industrial safety regulations. The precision-machined sealing face ensures consistent leak-proof performance in long-term service.

As a specialized manufacturer, we integrate corrosion-resistant material expertise with precision machining. Our team provides tailored solutions—including material selection for saltwater/chemical environments and custom size design—and offers pre-installation sealing guidance. We also ensure marine-grade packaging and global logistics, supporting timely delivery for offshore and coastal projects.

For corrosion-prone industrial and marine piping systems needing reliable, long-lasting sealing, our Stainless Steel Blind Flange is the ideal choice. Partner with us for high-performance, standard-compliant flanges that withstand harsh environments and reduce maintenance costs.


►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.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Zhejiang Yuhao Stainless Steel Co., Ltd
Location NO.81, LIUZHAI SECTION, LUODONG SOUTH ROAD, YONGZHONG STREET, LONGWAN DISTRICT, WENZHOU, CHINA
Contact Person Department 1

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