Flat Plate Flange

TYPE: PLATE Material: A105, A350 LF2, A36, A182 F11/F304/F316/F51/F53/F55 etc. Size: DN15 ~ DN 4000 Pressure: PN 6 ~ P4 400 Flange Facing: RF, FF. Standard: AS 2129, BS 4504, EN 1092-1 Customization: OEM/ODM service Samples: Sample service available

Send Inquiry

Download

Product Description

Trusted Manufacturer & Global Supplier of Precision Flat Plate Flanges – OEM/ODM Solutions Supported

Flat Plate Flanges are essential components in industrial piping systems, providing secure connections for fluid transfer under varying pressures. At Xi’an QinSteel Trading Co., Ltd, we specialize in manufacturing products that comply with ASME, EN, and API standards. Our solutions are engineered for durability, ease of installation, and adaptability across industries like oil & gas, water treatment, and power generation. With a focus on customization and global certifications, we ensure your projects meet technical and regulatory demands seamlessly.

Material Specifications

STANDARD	TYPE	SIZE	PRESSURE
ASME B16.5	WN, SO, SW, BLD, THREADED, LP	1/2" ~ 24"	CLASS 150 ~ 2500
ASME B16.36	WN, SO, THREADED	1/2" ~ 24"	CLASS 300LB ~ 2500
ASME B16.47	WN BLD	26" ~ 60"	CLASS 75 ~ 900
ASME B16.48	SPECTACLE BLANKS, SPADES, RING SPACERS	1/2" ~ 24"	CLASS 150 ~ 2500
AWWA C207	STEEL RING, BLD, STEEL HUB	4" ~ 96"	86 ~ 275 PSI
API 6A	WN, BLD, THREADED, INTEGRAL, TEST	2-1/16" ~ 20-3/4"	13.8 MPa ~ 138.0 MPa
API 605	WN	26" ~ 60"	CLASS 150 ~ 900
SANS 1123	WN, PLATE, SCREWED, SO, LOOSE, BLANK, INTEGRAL	DN 10 ~ 3600	250 ~ 4000 kPa
AS 2129	BLD, PLATE, BOSS, WN	DN15 ~ 1800	TABLE A ~ TABLE T
BS 3293	SO, WN	26" ~ 48"	CLASS 150 ~ 600
BS 4504	PLATE, LOOSE, BLANK, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 4000	PN 6 ~ 40
EN 1092-1	PLATE, LOOSE, BLIND, WN, SO, THREADED, WO PLATE, INTEGRAL	DN 10 ~ 3600	PN 6 ~ 400
JIS B2220	SOP, SOH, SW, WN, LJ, TR, IT, BL	DN 10 ~ 1500	5 ~ 63 K
MSS SP-44	BLD, WN	12" ~ 60"	CLASS 150,19.6bar ~ CLASS 900, 153.1 bar

Materials: Carbon Steel (A105, A36), Stainless Steel (F304, F316), Duplex Steel (F51, F53)

Why Our Flat Plate Flanges Stand Out?

✅ Global Compliance: Manufactured to AS 2129, BS 4504, and EN 1092-1 standards for universal acceptance.

✅ Size Flexibility: DN15 to DN4000 sizes to fit small-bore systems and large pipelines.

✅ Robust Design: Cost-effective performance in low-to-medium pressure applications.

✅ Material Versatility: Options for corrosive environments (stainless/duplex steels) and extreme temperatures.

✅ Dual Facing Options: RF (Raised Face) and FF (Flat Face) configurations for optimal sealing.

Applications Across Industries

Oil & Gas: High-pressure pipeline connections.
Water Treatment: Corrosion-resistant fluid handling.
Power Generation: Reliable performance in thermal plants.
Chemical Processing: Compatibility with aggressive media.

Why Choose Xi'an QinSteel Trading Co., Ltd?

🔹 Expert R&D Team: Customize flat plate flanges for unique system requirements.

🔹 GMP-Certified Production: Precision manufacturing with ISO 9001, CE, and PED certifications.

🔹 Fast Delivery: Large raw material stockpiles and optimized logistics for 15–30-day lead times.

🔹 Low MOQs: Flexible order volumes to suit startups and large contractors.

🔹 End-to-End Support: Prototyping, testing, and post-sales technical assistance.

Quality Assurance

Every product undergoes pressure testing, dimensional checks (±0.5mm tolerance), and surface inspections. Full material traceability and compliance reports are provided.