A105 Plate China Plate Flange Ansi Plate Flange Orifice Flange Plate

A105 Plate China Plate Flange Ansi Plate Flange Orifice Flange Plate

Core Features

  • ASTM A105 Forged Carbon Steel: Hot-forged from premium, fully killed carbon steel to deliver high tensile strength and microstructural density. This process eliminates the internal air pockets, voids, and casting flaws common in lower-tier alternatives.
  • Dual-Purpose Geometry Architecture: Engineered to function seamlessly either as a standard space-saving Plate Flange for secure joint connection or as a specialized structural Orifice Plate Holder/Blank within differential pressure-flow measurement loops.
  • American Standard Compliance (ANSI/ASME B16.5): Precision-machined in strict accordance with American National Standards Institute dimensional layouts, guaranteeing exact bolt-pattern and alignment interchangeability with standard Class 150 valves, instruments, and fittings.
  • Hubless, Space-Saving Configuration: Lacks a raised neck or hub, providing a completely flat profile that slides directly over the pipe outer diameter. This reduces raw material volume, lowers freight costs, and optimizes tight mechanical layouts.
  • Double Fillet Weld Attachment: Designed to be permanently attached to the line using both internal and external fillet welds, creating a robust mechanical joint that evenly distributes structural strain and helps absorb pipeline vibrations.

At Kriloha Gaskets & Hardware, we recognize that modern fluid management networks require components that combine standard pipeline security with specialized process versatility. Our ASTM A105 Forged ANSI Orifice Plate Flanges represent our engineered answer for “Multi-Functional-Joint-Security” and “Flawless-Flat-Alignment.” As a leading premier manufacturer and supplier of integrated industrial fluid elements, Kriloha utilizes controlled forging methods to ensure that our hubless plate rings deliver superior mechanical longevity.

The engineering of our A105 plate program is founded on Metallurgical-Traceability and Sharp-Geometric-Precision. By forcing the steel’s internal grain structure to trace the flat contour of the plate ring, our components offer exceptional impact toughness and resistance to stress fatigue under pressure. This robust grain structure prevents the plate from warping or flexing when high bolt torque is applied across the ANSI bolt circle. At Kriloha, we precision-machine the flat sealing surface on advanced multi-axis CNC turning lines, finishing them with micro-grooved phonographic serrations that mechanically lock your choice of gasket matrix into position to resist blowout under sudden system pressure surges.

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

Primary Use Cases

  • Differential Pressure Flow Measurement: Acts as a heavy-duty flat carrier or blanking plate ring within orifice piping runs to help measure the flow rates of gases, steam, and clean liquids.
  • Industrial Liquid & Gas Utilities: Reliable connection joints for primary factory utility lines handling industrial water, cooling tower headers, and low-pressure fuel networks.
  • Compressed Air & Nitrogen Loops: High-density flat interfaces for factory-wide compressed air distribution networks and inert gas processing cells.
  • Commercial HVAC & Utility Risers: Budget-efficient, high-strength flat connections for chilled water distribution networks and commercial facility heating lines.
  • Modular OEM Machinery Skids: Compact structural connection points used to join prefabricated valve groups to flat-faced storage vessels, pumps, and heat exchangers.

Frequently Asked Questions (FAQs)

What is the functional relationship between a “Plate Flange” and an “Orifice Flange”?

A standard plate flange is a simple, hubless ring used to connect two sections of pipe together via a double fillet weld. An orifice flange plate can be used as a heavy-duty carrier or clamping ring within an orifice meter assembly. This configuration allows technicians to suspend a calibrated orifice plate disc inside the pipeline to restrict fluid flow and measure differential pressure.

Why specify a hubless “Plate Flange” instead of a traditional hubbed Slip-On flange?

Because a plate flange completely lacks a raised collar or hub, it uses significantly less raw material during manufacturing. This makes it a highly compact, lightweight, and cost-effective alternative for standard process networks where the extra structural reinforcement of a tapered hub is not functionally required.

What specific welding configuration is required to install an A105 plate flange?

A plate welding flange requires a standard double fillet weld setup for proper installation: one robust fillet weld around the rear side where the plate meets the outer diameter of the pipe wall, and a secondary fillet weld along the inside bore face where the pipe end sits flush with the flat face.

How is this carbon steel plate flange protected against environmental rust?

Because carbon steel is vulnerable to atmospheric oxidation, our A105 flanges come standard with a protective surface treatment. This typically includes a light yellow or black anti-rust lacquer, a rust-preventative oil finish, or electro-galvanization depending on your long-term storage and installation environment requirements.

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

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 (Carbon, Manganese, Silicon content), hardness values, yield/tensile strength data, and explicit compliance with ANSI/ASME B16.5 dimensional templates to guarantee complete code traceability.

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