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304/316L Stainless Steel Blind Flange – Heavy-Duty Leak-Proof Sealing for Industrial Piping Systems
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304/316L Stainless Steel Blind Flange – Heavy-Duty Leak-Proof Sealing for Industrial Piping Systems
| MOQ: | 100KGS |
| Price: | Negotation |
| Standard Packaging: | They are usually packed in conventional export wooden cases. |
| Delivery Period: | 2-10 work days |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Capacity: | 2000tons/per month |
Detail Information
Place of Origin
China
Brand Name
Yuhao
Certification
ISO, API, BV, CE ...
Model Number
Flanges
Material:
316, 316L, 304, 304L, Carbon
Application:
Connection, Decoration, Oil And Gas, Automative, Chemical, Water Treatment,
Flange Face Type:
RF (Raised Face)
Package:
Standard Seaworthy Packagel, Wooden Cases...
Connection:
Welding
Pressure:
PN6-PN500
Dimensions:
1/2”, 2”, 3”, 4”, 6”, 8”, Up To 24”
Place Of Origin:
Zhejiang
Highlight:
304 stainless steel blind flange
,316L stainless steel flange
,heavy-duty leak-proof flange
Product Description
304/316L Stainless Steel Blind Flange
Heavy-duty sealing component for industrial piping closure and isolation, offering superior leak-proof performance, corrosion resistance and durability for demanding industrial environments.
Product Overview
Stainless Steel Blind Flange is engineered for permanent and temporary sealing applications, ideal for closing pipelines during maintenance, pressure testing, shutdowns or isolation. The solid flat design forms a tight gasket seal, preventing leakage and shielding pipelines from external debris.
Key Features
- Manufactured from 304/316L stainless steel for optimal performance
- Sturdy solid construction with superior leak-proof capabilities
- Excellent corrosion resistance for demanding industrial environments
- Compliant with ANSI/ASME B16.5, DIN 2642, EN 1092-1 standards
- Available in various sizes, 150-2500 pressure classes and surface finishes
- Rigorous quality checks including material testing and dimensional verification
Material Specifications
304 Stainless Steel: Suitable for general industrial applications including water treatment, HVAC, and light manufacturing.
316L Stainless Steel: Enhanced corrosion resistance for harsh environments such as chemical processing, marine engineering, and oil & gas auxiliary pipelines.
316L Stainless Steel: Enhanced corrosion resistance for harsh environments such as chemical processing, marine engineering, and oil & gas auxiliary pipelines.
Technical Specifications
| DN | Pipe OD | Connection Size | Flange Thickness (mm) | Flange ID | Flange OD | Bolt Hole Circle Diameter |
|---|---|---|---|---|---|---|
| 10 | 17.2 | 14 | 14 | 15 | 90 | 60 |
| 15 | 21.3 | 18 | 14 | 19 | 95 | 65 |
| 20 | 26.9 | 25 | 16 | 26 | 105 | 75 |
| 25 | 33.7 | 32 | 16 | 33 | 115 | 85 |
| 32 | 42.4 | 38 | 18 | 39 | 140 | 100 |
| 40 | 48.3 | 45 | 18 | 46 | 150 | 110 |
| 50 | 60.3 | 57 | 19 | 59 | 165 | 125 |
| 65 | 76.1 | 76 | 20 | 78 | 185 | 145 |
| 80 | 88.9 | 89 | 20 | 91 | 200 | 160 |
| 100 | 114.3 | 108 | 22 | 110 | 220 | 180 |
| 125 | 139.7 | 133 | 22 | 135 | 250 | 210 |
| 150 | 168.3 | 159 | 24 | 161 | 285 | 240 |
| 200 | 219.1 | 219 | 24 | 222 | 340 | 295 |
| 250 | 273 | 273 | 26 | 276 | 395 | 350 |
| 300 | 323.9 | 325 | 26 | 328 | 445 | 400 |
| 350 | 355.6 | 377 | 28 | 381 | 505 | 460 |
| 400 | 406.4 | 426 | 32 | 430 | 565 | 515 |
| 450 | 457 | 480 | 36 | 485 | 615 | 565 |
| 500 | 508 | 530 | 38 | 535 | 670 | 620 |
| 600 | 610 | 630 | 42 | 636 | 780 | 725 |
Product Gallery
Frequently Asked Questions
What is your delivery time?
1-7 days for small orders, 10-20 days for large orders.
Are you a manufacturer or trading company?
We are both a manufacturer and trading company with over 12 years of export experience.
What is your minimum order quantity?
The MOQ varies by product. Please refer to the product detail page or contact us with the product link for specific information.
Do you provide samples? Are they free?
Yes, we provide samples free of charge, but customers are responsible for freight costs.
How long is your production lead time?
Generally 5-10 days for in-stock items, or 15-20 days for items not in stock, depending on quantity.
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