10 Slip On Flange Stainless Steel Flange

10 Slip On Flange Stainless Steel Flange

10-Inch Forged Stainless Steel Slip-On Flange

Category: Flanges | Sub-Category: Slip-On Flange / Hubbed Plate Family

Core Features

  • 10-Inch Nominal Standard Sizing (NPS 10 / DN250): Precision-machined with a center clearance internal bore engineered to slide seamlessly over standard 10-inch nominal outer diameter (273.1 mm) stainless steel pipelines, large manifold headers, or primary utility loops.
  • American & Metric Standard Blueprint Adaptation: Machine-tailored to conform strictly to global standard specifications, including American ASME/ANSI B16.5 (Class 150/300) and European metric PN10/PN16 (DIN / EN 1092-1 Type 01/12). This layout ensures absolute bolt-circle, thickness, and pitch circle diameter (PCD) interchangeability across large-scale fluid assets.
  • Premium Forged Stainless Steel Construction: Hot-forged from certified austenitic stainless steel stock (typically available in low-carbon 304L or 316L grades). The hot-forging process refines the internal grain orientation and crushes internal voids, providing an exceptionally high structural yield threshold capable of handling intense continuous operation.
  • Low-Profile Slip-On (SO) Hub Profile: Features a low-profile raised hub or collar surrounding the large center bore. This architecture distributes intense pipeline mechanical loads, structural weight, and thermal stresses far more effectively than a standard hubless plate ring.
  • Double Fillet Weld Joint Security: Attached to the large-diameter pipe by sliding directly over its outer diameter. The joint is secured using a robust double fillet weld—one tracking the exterior hub neck and a secondary weld inside the bore—forming a highly stable, leak-proof mechanical connection.

At Kriloha Gaskets & Hardware, we recognize that large-bore processing networks demand components that combine premium corrosion resistance with strict geometric compliance. Our 10-Inch Forged Stainless Steel Slip-On (SO) Flanges represent our engineered answer for “High-Load-Joint-Security” and “Deflection-Resistant-Flatness” across primary industrial arrays. As a leading premier manufacturer and supplier of integrated flow control elements and high-performance pipeline hardware, Kriloha utilizes automated multi-axis production workflows to ensure that our flat welding configurations provide superior mechanical longevity.

The engineering of our large-diameter slip-on program is founded on Metallurgical-Purity and Sharp-Geometric-Tolerance. By forcing certified Grade 304L or 316L stainless steel stock through controlled forging paths rather than relying on lower-cost casting alternatives, we eliminate internal gas pockets, voids, and structural micro-cracks. Sourcing our low-carbon “L-Grade” chemistry prevents intergranular corrosion cracking along the weld line during field installation. The refined metal grain structure smoothly traces the contour of the flange ring and low-profile hub, providing the high structural modulus required to withstand intense bolt-torque demands across the 10-inch bolt circle without warping or undergoing structural relaxation over time. At Kriloha, we precision-machine the sealing face on advanced CNC turning centers, finishing it with controlled phonographic serrations ( finish) that mechanically grip the gasket matrix to resist fluid bypass or blowout under sudden system pressure cycles.

Manufacturing and provisioning these critical high-grade components involves strict Dimensional Tolerance Checks, Volumetric Material Inspections, and Surface Roughness Calibration. We collaborate directly with your project engineering, procurement, and facility maintenance teams to supply precise internal bores tailored to standard pipe outer diameters and unique wall-thickness schedules (such as Schedule 10S or Schedule 40S matching). By choosing Kriloha Gaskets & Hardware, you are investing in a “Future-Proof” industrial partnership that prioritizes your system’s lifetime reliability through superior stainless metallurgy and micro-tolerance engineering.

Primary Large-Diameter Industrial Applications

  • Main Utility & Process Headers: High-volume connection joints for plant raw water intake lines, primary water treatment headers, and large-diameter chemical distribution manifolds.
  • Hygienic Process Pipelines: Clean-utility networks in food processing, large-scale industrial breweries, dairy plants, and pharmaceuticals where smooth, non-porous stainless steel prevents fluid contamination and survives clean-in-place (CIP) steam washdowns.
  • Chemical Processing & Reagent Transfer: High-reliability connection interfaces for industrial processing loops transporting volatile solvents, organic and inorganic acids, industrial reagents, and corrosive chemical waste.
  • Marine Infrastructure & Desalination: Critical, lifetime rust-resistant joints for seawater cooling networks, reverse osmosis water purification blocks, and coastal fuel manifolds exposed to heavy salt spray (when specified in Grade 316L).
  • Prefabricated Storage Tank & Vessel Connections: Large-bore mounting flanges used to smoothly link massive prefabricated process manifolds directly to low-pressure storage vessels, shell-and-tube heat exchangers, and filtration blocks.

Frequently Asked Questions (FAQs)

What is the structural difference between a Slip-On (SO) flange and a standard Flat Plate flange?

While both types slide over the pipe outer diameter and utilize double fillet welding, a standard plate flange is completely flat and collarless. A Slip-On flange features a low-profile raised hub or collar surrounding the center bore. This hub provides additional structural reinforcement at the weld zone, helping to distribute pipeline stresses and making it better suited for slightly higher mechanical loads or vibration profiles compared to a completely flat, hubless plate flange.

What are the standardized bolt hole configurations for a 10-inch Class 150 Raised Face flange?

According to the ASME B16.5 Class 150 standard, a 10-inch flange features an outer diameter of 16.00 inches (406.4 mm) and a bolt circle diameter of 14.25 inches (361.9 mm). It utilizes 12 bolt holes designed to accommodate 7/8-inch diameter bolts or stud bolts. (Note: Class 300 variants upgrade to 16 bolt holes with larger bolt diameters).

What specific welding configuration is required to install an ASME Slip-On flange?

A slip-on flange requires a standard double fillet weld setup for proper code-compliant installation:

One robust fillet weld around the exterior where the hub neck meets the outer diameter of the pipe wall.

A secondary fillet weld inside the bore, where the pipe end is slid back slightly (typically equal to the pipe wall thickness plus 3mm) from the flange face to prevent heat or weld spatter from damaging the machined sealing surface during field welding.

When should I select Grade 316L stainless steel over Grade 304L for this product?

Grade 304L is highly economical and excellent for freshwater processing, commercial HVAC loops, standard food-grade utilities, and clean factory environments. If your pipeline is handling aggressive chemical acids, highly concentrated salt brines, or is installed in an offshore marine environment exposed to heavy salt spray, upgrading to Grade 316L (which contains molybdenum) is mandatory to prevent localized pinhole pitting.

Are Material Test Reports (MTRs) provided with these forged flanges from Kriloha?

At Kriloha Ltd., quality assurance is completely non-negotiable. Every shipment from our facility can be accompanied by comprehensive Material Test Reports (MTRs) confirming exact chemical compositions (including precise Carbon, Chromium, Nickel, and Molybdenum content where applicable), hardness values, yield/tensile strength data, and explicit compliance with international industrial standards to guarantee complete industrial traceability.

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