EN 1092-1_TYPE 01-B WELDING FLANGE RF

The EN 1092-1 Type 01-B Flange is a Plate Flange for Welding (commonly referred to as a slip-on plate flange or flat flange) engineered with a Type B Raised Face (RF) sealing surface. As a Type 01 design, it features a central bore that slips directly over the outer diameter of the pipe. It is permanently attached to the piping system using fillet welds applied on both the inside and outside of the flange hub.

The "B" designation specifies a Raised Face (RF), which consists of a slightly elevated contact surface (typically 2 mm raised height for PN ratings up to PN 40). This raised design concentrates the bolt clamping force onto a targeted gasket area, delivering a significantly tighter and more leak-resistant seal than standard flat-face flanges.

Key Features

• Type B Raised Face (RF) Sealing: Concentrates bolt load directly over the gasket contact area, optimizing surface pressure for superior sealing performance against fluid leakage.
• Dual Fillet Weld Structure: Slips over the pipe end and is secured via both internal and external fillet welds, providing stable mechanical strength without requiring high-precision pipe beveling.
• Cost-Effective Fabrication: Machined from high-quality forged steel plates, providing a budget-friendly alternative to heavy tapered weld neck flanges in low-to-medium pressure applications.
• Easy Fit-Up & Alignment: The slip-on plate design allows slight manual adjustment and rotation along the pipe before welding, simplifying field assembly and bolt hole alignment.
• Standardized EN 1092-1 Dimensions: Precision-manufactured to European standard specifications, ensuring exact pitch circle diameters (PCD), bolt hole counts, and pressure class compatibility (ranging from PN 6 to PN 40).

Key Applications

• Low-to-Medium Pressure Pipelines: Widely used in water distribution, HVAC systems, low-pressure steam lines, and utility piping networks.
• Chemical & Petrochemical Processing: Ideal for secondary process lines, fluid transfer loops, and non-critical chemical handling systems.
• Water & Wastewater Infrastructure: Municipal water treatment plants, industrial filtration setups, and sewage pumping networks.
• Storage Tanks & Auxiliary Equipment: Connecting piping spools to pump suctions/discharges, storage tank nozzles, and heat exchanger ports where severe thermal cycling is absent.

Why Choose Hebei Haiyuan Pipe Fitting Co., Ltd.?

When sourcing vital pipeline components, partnering with Hebei Haiyuan Pipe Fitting Co., Ltd. guarantees industrial excellence, reliability, and value:

• Advanced Manufacturing & Forging Expertise: We utilize state-of-the-art hot forging and precision CNC machining technology to optimize metal grain structures and ensure absolute dimensional accuracy.
• Rigorous Quality Assurance: Every batch undergoes strict testing, including chemical composition analysis, mechanical property verification, and non-destructive examination (UT/MT) before shipment.
• International Standards Compliance: Our production strictly adheres to European specifications (EN 1092-1), ensuring seamless compatibility with global piping networks.
• Comprehensive Inventory & Customization: We maintain extensive stock readiness across various sizes (DN) and pressure ratings (PN), while also offering custom engineering for unique project blueprints.
• Direct-from-Factory Advantage: Enjoy competitive pricing without middleman markups, backed by dependable global logistics and prompt customer support.

Size	1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Pressure	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Flanges Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Welding Plate Flanges
UNI	6Bar 10Bar 16Bar 25Bar 40Bar Plate Blank Flanges
EN	6Bar 10Bar 16Bar 25Bar 40Bar Square Plate Flange
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated,Yellow Flange Grease,Cold and Hot Dip Galvanized
Types	Forged / Threaded / Screwed / Plate
Test Certificates	EN 10204/3.1B
	Raw Materials Certificate
	100% Radiography Test Report
	Third Party Inspection Report, etc
Connect Type	FF,RF,RTJ
Test	Direct Reading Spectrometer, Hydrostatic testing machine, X-ray detector, Ultrasonic flaw detector, Magnetic particle detector

FAQ

Q:May I have free sample before ordering?
A:Yes,we are pleasured to send you free samples for quality test,but freight cost would be afforded by your side.

Q:What about production time?
A:Sample order:4 - 7 days if out of stock,or deliver at once
Massive order:15 - 45 days against deposit,depending on the quantities.

Q:Do you have any MOQ limit for the products order?
A:Low MOQ,1pcs for sample checking is available.

Q:Do your company have the export license?
A:Yes,we have Sovereignty for exporting and importing.

Q:Which trade terms can I choose?
A:CRF,FOB,CIF,and negotiable accordingly

Q:How about payment term your company accept?
A:For small testing orders,we accept-T/T.
For massive order,we accept T/T and L/C.