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304/316L Stainless Steel Plate Flat Flange – Corrosion-Resistant Flat Face for Low-Pressure HVAC & Municipal Piping
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304/316L Stainless Steel Plate Flat Flange – Corrosion-Resistant Flat Face for Low-Pressure HVAC & Municipal Piping
| 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:
304, 304L, 306, 306L
Application:
Connection, Decoration, Oil And Gas
Standard:
ASTM, AISI, GB, JIS
Shape:
Raising Face, Flat Face, Tongue Face, Groove Face...
Package:
Standard Seaworthy Packagel, Wooden Cases...
Certification:
ISO, API, BV, CE ...
Connection:
Welding
Pressure:
Class150/300/600/900/1500/2500/3000
Type:
Pipe Fitting
Brand Name:
Yuhao
Highlight:
304 stainless steel flat flange
,316L stainless steel HVAC flange
,corrosion-resistant municipal piping flange
Product Description
304/316L Stainless Steel Plate Flat Flange
A reliability-focused, cost-effective component designed for low-pressure piping systems in HVAC, municipal and light industrial applications.
Product Overview
Manufactured from premium 304/316L stainless steel, this plate flat flange features a flat face and compact profile, delivering strong corrosion resistance and easy installation for pipe and equipment joints.
The flat face design creates a tight seal with gaskets, effectively preventing leakage in low-pressure media transfer. Unlike slip-on flanges, this plate flat flange is directly welded to pipes or equipment, simplifying installation procedures and reducing project costs for basic pipeline setups.
Key Features
- Premium 304/316L stainless steel construction
- Flat face design for secure gasket sealing
- Compact profile for easy installation
- Direct welding to pipes and equipment
- Cost-effective solution for low-pressure systems
- Comprehensive corrosion resistance
Standards & Specifications
Our stainless steel plate flat flanges meet ANSI/ASME B16.5, DIN 2627 and EN 1092-1 standards, available in full size ranges, 150-300 pressure classes and various surface finishes to match specific project requirements.
Material Applications
304 Stainless Steel: Ideal for municipal water piping, HVAC systems and light manufacturing applications.
316L Stainless Steel: Provides superior corrosion resistance for mild chemical processing, coastal and marine auxiliary pipelines.
Quality Assurance
Each stainless steel plate flat flange undergoes strict quality testing, including material composition checks, dimensional accuracy verification and surface defect inspections, ensuring seamless integration and long-term reliability in low-pressure operating conditions.
Applications
Widely used in municipal water systems, HVAC installations, light manufacturing and industrial auxiliary pipelines. Favored for reliability, affordability and ease of use in both new construction and maintenance upgrades.
Product Dimensions
| DN | Pipe OD | Connection Size | Flange Thickness (mm) | Flange ID | Flange OD | Bolt Hole Circle Diameter |
|---|---|---|---|---|---|---|
| 10 | 17.2 | 14 | 14 | 18 | 90 | 60 |
| 15 | 21.3 | 18 | 14 | 22.5 | 95 | 65 |
| 20 | 26.9 | 25 | 16 | 27.5 | 105 | 75 |
| 25 | 33.7 | 32 | 16 | 34.5 | 115 | 85 |
| 32 | 42.4 | 38 | 18 | 43.5 | 140 | 100 |
| 40 | 48.3 | 45 | 18 | 49.5 | 150 | 110 |
| 50 | 60.3 | 57 | 19 | 61.5 | 165 | 125 |
| 65 | 76.1 | 76 | 20 | 77.5 | 185 | 145 |
| 80 | 88.9 | 89 | 20 | 90.5 | 200 | 160 |
| 100 | 114.3 | 108 | 22 | 116 | 220 | 180 |
| 125 | 139.7 | 133 | 22 | 143.5 | 250 | 210 |
| 150 | 168.3 | 159 | 24 | 170.5 | 285 | 240 |
| 200 | 219.1 | 219 | 24 | 221.5 | 340 | 295 |
| 250 | 273 | 273 | 26 | 276.5 | 395 | 350 |
| 300 | 323.9 | 325 | 26 | 328 | 445 | 400 |
| 350 | 355.6 | 377 | 28 | 360 | 505 | 460 |
| 400 | 406.4 | 426 | 32 | 411 | 565 | 515 |
| 450 | 457 | 480 | 36 | 462 | 615 | 565 |
| 500 | 508 | 530 | 38 | 513.5 | 670 | 620 |
| 600 | 610 | 630 | 42 | 616.5 | 780 | 725 |
Product Images
Frequently Asked Questions
Q: What is your delivery time?
A: 1-7 days for small orders, 10-20 days for larger orders.
Q: Are you a manufacturer or trading company?
A: We are both a manufacturer and trading company with over 12 years of export experience.
Q: What is your minimum order quantity?
A: The MOQ varies by product. Please refer to the product detail page or contact us with the product link for specific information.
Q: Do you provide samples? Are they free?
A: Yes, we offer samples free of charge, but customers are responsible for freight costs.
Q: How long is your production lead time?
A: Generally 5-10 days for in-stock items, or 15-20 days for non-stock items, depending on quantity.
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