| Standard: | ANSI, DIN, GB, JIS, GOST, BSW |
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| Type: | Welding Flange |
| Material: | Stainless Steel |
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| Model:Welding Neck Flange(WN)/,Slip On Flange(SO),Plat Flange(PL),Blind Flange(BL),Threaded Flange(TH),Socket Welding Flange(SW) | |||
| Model N.O. | Head Code | Round | |
| Surface | Hot Galvanized/Liaht Oil/Black Painting |
Standard | ASTM/JIS/DIN/BS/GB/GOST |
| Technics | Forged | Szie | 1/2"-48"(DN15-DN1200) |
| Thread Distribution | Intemal Thread | Package | Wooden Case, Cartons, Pallets or Crates |
| Application | Petroleum.Chemical.Power Gas, Metallurgy, Ship |
MOQ | 1 PCS |
| Material | Carbon Steel/Stainless Steel | Heat Treatment | Normalizing, Annealing, Quenching Tempering |
| Carbon Steel | ASTM, A234WPD,A234WPC A420WP16 ,Q235,10#,A3,Q2,A105 |
Customized | Customized |
| Stainless Steel | 304 304L 316 316L | Lead Time | 10-30 Days |
| Pressure | ANSI.150LB- 2500LB;BS:PN2.5- PN40;JIS:5K-30K;DIN:0.25Mpa-40Mpa |
Origin | Hebei |
| Certification | CQC, CCC, PSE, TUV, VDE,ISO9001 | Warranty | 3 Years |
| Name | Flange | HS Code | 730799 |
| AMERICAN STANDARD | ASME/ANSI B16.5A-1992 ASME/ANSI B16.47-1996 |
150LB(2.0Mpa),300LB(5.0Mpa),400LB(6.8Mpa),600LB(11.0Mpa),900LB(15.0Mpa),1500LB(26.0Mpa),2500LB(42.0Mpa) |
| BRITISH STANDARD | BS10/BS3293/BS4504 | PN2.5,PN6,PN10,PN16,PN25,PN40 |
| JAPANESE STANDARD | JIS B 2220 | 5K,10K,16K,20K,30K |
| DIN STANDARD | DIN EN 1092-1 | 0.25Mpa,0.6Mpa,1.0Mpa,1.6Mpa,2.5Mpa,4.0Mpa,6.4Mpa,10.0Mpa,16.0Mpa,25.0Mpa,32.0Mpa,40.0Mpa |
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| WELDING NECK FLANGE(WN) SIZE:3/8"-160" NORMALPRESSURE:150LB-2500LB;PN2.5-PN40; Mpa 0.25-Mpa-40Mpa;5K-30K SURFACE:FF,RF,RJ(RTJ),MFM,TG |
SLIP ON FLANGE(SO) SIZE:3/8"-40" NORMALPRESSURE:150LB-2500LB;PN2.5-PN40; Mpa 0.25-Mpa-40Mpa;5K-30K SURFACE:FF,RF,RJ(RTJ),MFM,TG |
SOCKET WELDING FLANGE(SW) SIZE:3/8"-3" NORMALPRESSURE:150LB-2500LB;PN2.5-PN40; Mpa 0.25-Mpa-40Mpa;5K-30K SURFACE:RF,RJ(RTJ),MFM,TG |
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| PLANT FLANGE(PL) SIZE:3/8"-80" NORMALPRESSURE:150LB-2500LB;PN2.5-PN40; Mpa 0.25-Mpa-40Mpa;5K-30K SURFACE:FF,RF |
BLIND FLANGE(BL) SIZE:3/8"-80" NORMALPRESSURE:150LB-2500LB;PN2.5-PN40; Mpa 0.25-Mpa-40Mpa;5K-30K SURFACE:FF,RF,RJ(RTJ),MFM,TG |
THREADED FLANGE(TH) SIZE:3/8"-40" NORMALPRESSURE:150LB-2500LB;PN2.5-PN40; Mpa 0.25-Mpa-40Mpa;5K-30K SURFACE:FF,RF |
Determining the quality of a flange requires evaluating several key factors related to its design, materials, manufacturing process, and performance. Here are some steps you can take to evaluate the quality of a flange:
Material: Check the material composition of the flange. High-quality flanges are typically made from materials such as stainless steel, carbon steel, or alloy steel, depending on the application requirements. Ensure that the material meets the specified standards and is suitable for the expected operating conditions (e.g., temperature, pressure, corrosion resistance).
Dimensional Accuracy: Measure the flange's dimensions, including its diameter, thickness, and bolt hole spacing. High-quality flanges have precise dimensions that conform to industry standards like ASME B16.5 or EN 1092-1. Any deviations from the specified dimensions should be checked, as they can affect the fit and performance of the flange.
Surface Finish: Inspect the flange's surface finish for any machining defects, roughness, or surface imperfections. A smooth, uniform surface finish is crucial for proper sealing and preventing leakage.
Flange Face: Examine the flatness and smoothness of the flange face, especially the sealing surface where the gasket is placed. Ensure there are no scratches, pits, or irregularities that could compromise the sealing integrity.
Bolt Holes: Check whether the bolt holes are accurately drilled and properly aligned with the flange face. Misaligned or poorly drilled bolt holes can lead to uneven bolt loading and potential leakage.
Welding Quality: If the flange is manufactured using welding processes, the quality of the welds should be checked. The welds should be smooth, free of cracks, porosity, or other defects. Poor welding can result in structural instability and affect the flange's pressure and sealing performance.
Hardness Testing: Perform hardness testing based on the material standards to verify that the flange meets the design requirements. Hardness values are important for the flange's wear resistance and compressive strength.
Pressure Testing: Conduct pressure tests to verify the flange's sealing performance and leakage resistance under actual working pressures. Such tests can confirm the flange's real-world performance in the operating environment.
Corrosion Detection: For flanges that may be exposed to corrosive environments, surface corrosion inspections must be performed. Corrosion can affect the strength and lifespan of the flange and may even lead to leakage.
Quality Certification and Standard Compliance: Confirm that the flange manufacturer follows relevant quality management systems, such as ISO 9001 certification. Check whether the flange complies with international standards (e.g., ASME, DIN, EN) and if there are corresponding product certificates or test reports available.
This approach ensures a thorough evaluation of the flange's quality and suitability for its intended application.
1. What is the minimum quantity of the order?
Answer: The purchase volume of mixed products is 4 tons
2. How long is the delivery time of the order?
Answer: The delivery time for general orders is about 30 days. If the order is urgent and we have stock, around 7 days.
3. What payment methods do you accept?
Answer: We accept payment terms such as T/T, L/C, DP, Western Union, Paypal, etc.
4. Where is your departure port of shipment? Is it possible to deliver to the designated warehouse?
Answer: The port of departure of our goods is generally Tianjin Port or Qingdao Port. We can transport the goods to designated warehouses, such as Yiwu, Guangzhou, etc.
5. What certificates do your products have?
Answer: Our products have FM/UL certificates, and we cooperate with third-party quality inspection certification before the factory, such as SGS,TUV
6.What are the series of your products?
Answer: Our products are divided into heavy series, medium series and light series according to different markets and standards. In order to buy more competitive products for you, please communicate your purchasing needs with the salesperson.
7. Do product packaging cartons and labels support customization?
Answer: Packaging cartons and labels can be customized according to customer requirements.
8.Does the purchased product support customization?
Answer: The product supports customization, but there are purchase quantity requirements and mold costs. For details, please consult the salesperson.
9.What are the packaging methods of the product?
Answer: The packaging of the product includes carton packaging, pallet packaging, wooden box packaging, and woven bag packaging.
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