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Product Description
Our ANSI B16.5 Blind Flanges are manufactured in accordance with ASME standards, designed to seal off the ends of piping systems or pressure vessel openings. They are available in a wide range of pressure classes from 150 to 2500, with materials including carbon steel (A105), stainless steel (SS304/SS316), and other alloys.
Available with Raised Face (RF) or Ring Type Joint (RTJ) sealing surfaces, our blind flanges ensure a secure and leak-proof connection, suitable for high-pressure and corrosive environments.
| Standard: | ANSI B 16.5 | |||||||||
| Flange type： | welding neck, slip on,blind,lap joint,threaded,socket welding | |||||||||
| Size: | 1/2''-24'' | |||||||||
| Pressure class: | 150LB,300LB,400LB,600LB,900LB,1500LB,2500LB | |||||||||
| Sealing type： | Flat face（FF),Raised face(RF),Ring Joint（RTJ) | |||||||||
| Material： | Carbon steel ASTM A 105/A 105N,A694 F42-F70,A-350LF1/LF2, | |||||||||
| Stainless steel ASTM A 182 F304/304L,F316/316L | ||||||||||
Flange production process
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FAQ
Q1: What are the common types of flanges you supply?
A: We supply a wide range of forged steel flanges, including Blind Flange, Weld Neck Flange, Slip On Flange, Socket Weld Flange, Threaded Flange, and Lap Joint Flange, all conforming to international standards like ANSI/ASME B16.5 and EN1092-1.
Q2: What materials are available for your flanges?
A: We offer flanges in various materials such as Carbon Steel (A105), Stainless Steel (SS304, SS316), and Alloy Steel (F11, F22, etc.). Material customization is available based on project requirements.
Q3: What standards and pressure classes do you support?
A: Our flanges conform to standards including ANSI/ASME B16.5, EN 1092-1, and DIN. Pressure classes range from Class 150 to 2500 (ANSI) and PN6 to PN100 (EN/DIN).
Q4: Do you provide sealing face options like RF or RTJ?
A: Yes. We offer Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ) sealing surfaces depending on pressure, sealing performance, and customer requirements.
Q5: What surface treatments are available?
A: Surface treatments include anti-rust oil, black painting, galvanizing, yellow transparent varnish, and custom coatings for corrosive environments.
Q6: Can you provide certificates and test reports?
A: Yes. We provide MTC (EN10204 3.1/3.2), as well as ISO, CE, FM/UL certificates (depending on product type). Third-party inspections like SGS, BV, and TUV are also available.
Q7: What is your typical production lead time?
A: For standard flanges, lead time is usually 30–35 days. For urgent needs or large volumes, we can offer fast-track production based on stock and raw material availability.
Q8: Do you accept OEM branding or customized packaging?
A: Yes. We support OEM logo stamping, custom labels, and export packaging with your brand or specifications.
Q9: Can I request a sample before confirming an order?
A: Absolutely. We are happy to provide free or paid samples for quality inspection, depending on the product type and destination.
