Asme B16 36 Slip On Flange Pn10 Flange Stainless Steel Forged So Flanges

Asme B16 36 Slip On Flange Pn10 Flange Stainless Steel Forged So Flanges

ASME B16.36 Stainless Steel Forged Slip-On Orifice Flange (PN10 Sizing Compliant)

Category: Flanges | Sub-Category: Slip-On Flange / Orifice Flow Meter Family

Core Features

  • Integrated Flow Metering Architecture (ASME B16.36): Precision-engineered with standard dual differential pressure tap holes (typically 1/4″ or 1/2″ NPT) drilled directly into the flange ring. These taps allow for the immediate hookup of external pressure transducer lines to measure fluid velocity across an internal orifice plate.
  • Metric Sizing & Bolt Circle Cross-Alignment (PN10): Precision-machined to match metric PN10 pressure boundary parameters. This ensures absolute bolt-circle, thickness, and pitch circle diameter (PCD) interchangeability with European-spec pipelines and inline flow meters.
  • Premium Forged Stainless Steel Core: Hot-forged from high-density austenitic stainless steel stock (typically available in low-carbon 304L or 316L grades). The forging process eliminates internal gas pockets and micro-voids, providing high structural strength to prevent distortion across the precision-drilled tap channels.
  • Low-Profile Slip-On (SO) Configuration: Designed with a straight internal bore that slides directly over the outside diameter of standard process piping before welding. This simplifies field alignment and allows for rapid manual rotation to align the pressure tap holes with external monitoring instruments.
  • Double Fillet Weld Joint Security: Attached to the pipeline via a robust double fillet weld matrix—one external weld tracking the hub collar neck and a secondary weld inside the bore—forming a highly stable, leak-proof mechanical connection.

At Kriloha Gaskets & Hardware, we recognize that modern industrial process networks require components that seamlessly combine absolute structural security with accurate process instrumentation tracking. Our ASME B16.36 PN10 Stainless Steel Forged Slip-On (SO) Orifice Flanges represent our engineered answer for “Precision-Flow-Measurement” and “Zero-Flexing-Integrity” across essential processing arrays. As a premier manufacturer and supplier of integrated flow control interfaces, Kriloha utilizes advanced multi-axis CNC drilling and automated turning centers to ensure that our orifice configurations provide superior mechanical longevity and uncompromised measurement stability.

The engineering of our orifice slip-on program is founded on Microstructural Uniformity and Geometrical Precision. Because these flanges feature specialized differential pressure taps drilled into their bodies, Kriloha completely bypasses lower-grade, unpredictable casting techniques that leave hidden internal air pockets or structural micro-cracks. Instead, we utilize fully certified, high-density hot-forged stainless steel stock. The forging process refines the internal grain flow to trace the structural contour of the low-profile hub and plate ring, giving it the high structural modulus required to handle intense bolt-torque demands across the specified bolt circle without warping, bowing, or deforming the internal pressure tap threads over time. The “L-Grade” low-carbon threshold (in our 304L/316L offerings) prevents intergranular corrosion cracking along the weld line during installation. At Kriloha, we precision-machine the Raised Face (RF) sealing surfaces, adding controlled concentric phonographic micro-serrations ( finish) that firmly anchor the gasket matrix to eliminate fluid bypass or blowout risks.

Manufacturing and provisioning these critical flow-control connection pieces involves strict Dimensional Tolerance Checks, Volumetric Material Inspections, and Tap Calibration. We collaborate directly with your project engineering, quality assurance, and procurement 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.

💡 Engineering Note

ASME B16.36 specifically governs Orifice Flanges, which are used in combination with orifice plates for line fluid metering. They feature integrated, precision-machined differential pressure tap holes through the flange ring.

While ASME B16.36 dictates the pressure tap dimensions and layout, our universal engineering cross-machines the outer dimensions and bolt circle patterns to align cleanly with metric PN10 (EN 1092-1 Type 01/12) benchmarks, allowing seamless integration across both American and European industrial flow instrumentation systems.

Primary Industrial Applications

  • Inline Fluid Metering & Flow Monitoring: Crucial joint assemblies in pipeline arrays where accurate flow measurement of liquids, gases, or steam is required for system monitoring and custody transfer.
  • Chemical Process Control Loops: High-reliability connection interfaces for chemical processing lines requiring continuous, real-time tracking of volatile solvents, corrosive reagents, and asset feed line velocities.
  • Power Generation Steam Infrastructure: Reliable flow monitoring stations along boiler feed water circuits, high-pressure steam utility distribution grids, and thermal energy loops.
  • Hygienic Process Pipelines: Clean-utility networks in food processing, beverage bottling, and pharmaceutical facilities where smooth, non-porous stainless steel surfaces resist contamination and survive clean-in-place (CIP) steam washdowns.
  • Water Treatment & Environmental Dosing: Specialized measurement blocks on chemical dosing skids, municipal water filtration networks, and industrial wastewater processing arrays.

Frequently Asked Questions (FAQs)

What is the fundamental difference between a standard ASME B16.5 flange and an ASME B16.36 flange?

ASME B16.5 covers standard pipe flanges used purely for making structural, leak-proof piping connections.

ASME B16.36 specifically covers Orifice Flanges, which feature precision-drilled differential pressure tap holes and matching jack bolts. They are installed in pairs with an orifice plate sandwiched between them to measure the pressure drop across the line, acting as a structural flow meter.

What are the jack bolts used for on an ASME B16.36 orifice flange assembly?

An orifice flange union includes specialized jack bolts located in the bolt circle. These bolts are used as mechanical jacks to spread the two flanges apart during maintenance shutdowns, allowing workers to easily change out or inspect the internal orifice plate and gaskets without warping or stretching the attached pipeline.

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

An orifice slip-on flange requires a standard double fillet weld configuration for a 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 or blocking the internal pressure tap holes.

When should I select Grade 316L stainless steel over Grade 304L for an orifice flange?

Grade 304L is highly economical and excellent for freshwater processing, standard steam utilities, food-grade processing, and clean factory environments. If your pipeline handles aggressive chemical acids, highly concentrated salt brines, or is installed in a marine or coastal 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 dispatched from our facility is accompanied by comprehensive Material Test Reports (MTRs) confirming exact chemical compositions (including precise Carbon, Chromium, and Nickel fractions), hardness values, yield/tensile strength data, and explicit compliance with international industrial standards to guarantee complete code traceability.

This is the heading

Lorem ipsum dolor sit amet consectetur adipiscing elit dolor

Request a Quote

Enter your details here

Great! We’ve received your information.

We couldn’t process your submission. Please retry

Scroll to Top

Get a Quote

Great! We’ve received your information.

We couldn’t process your submission. Please retry