INDUSTRY COMPONENT

Dome Flange

A specialized flange designed for dome-shaped pressure vessels and tanks to provide secure sealing and structural connection.

View Specifications

Component Specifications

Definition
A dome flange is a precision-engineered circular component with bolt holes and a sealing surface, specifically contoured to match the curvature of dome-shaped structures in pressure vessels, storage tanks, and reactors. It serves as the interface between the dome and connecting pipes or equipment, ensuring pressure integrity and structural stability under operational loads.
Working Principle
The dome flange operates by creating a bolted, gasketed joint that distributes mechanical loads evenly across the dome's curved surface. When tightened, bolts compress a gasket between mating surfaces, forming a pressure-tight seal that prevents leakage of contents (liquids, gases, or vapors) while withstanding internal pressure, thermal expansion, and external forces.
Materials
Typically manufactured from carbon steel (ASTM A105), stainless steel (ASTM A182 F304/F316), or alloy steel (ASTM A182 F11/F22). Materials are selected based on corrosion resistance, temperature, and pressure requirements. Surface finish: Ra ≤ 3.2 μm for sealing surfaces.
Technical Parameters
  • Sealing Type Raised face (RF) or ring-type joint (RTJ)
  • Pressure Rating PN10 to PN100 (or Class 150 to Class 600)
  • Flange Thickness 10-50 mm depending on pressure class
  • Temperature Range -20°C to +400°C
  • Bolt Circle Diameter Customized to dome curvature
Standards
ISO 7005-1, ASME B16.5, DIN 2633

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Dome Flange.

dome flange pressure vessel flange tank flange sealing component industrial flange ASME B16.5 ISO 7005 Dome Flange in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Dome

The curved structural element of a rupture disc that deforms under pressure to initiate rupture.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Improper bolt tightening can cause leakage
  • Material corrosion in aggressive environments
  • Thermal cycling may lead to fatigue cracking
FMEA Triads
Trigger: Incorrect gasket selection or installation
Failure: Leakage of hazardous fluids
Mitigation: Use compatible gasket materials and follow torque specifications; implement regular inspection schedules.
Trigger: Thermal stress from temperature fluctuations
Failure: Flange warping or bolt loosening
Mitigation: Design with thermal expansion allowances; use high-temperature bolts and periodic retorquing procedures.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Bolt hole diameter: ±0.5 mm; Flange thickness: ±1 mm; Flatness: ≤0.1 mm per 100 mm diameter
Test Method
Hydrostatic pressure testing per ASME BPVC Section VIII; Helium leak testing for critical applications; Dye penetrant inspection for surface defects.

Buyer Feedback

★★★★☆ 4.9 / 5.0 (33 reviews)

"Great transparency on the Dome Flange components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Dome Flange we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 17+ suppliers for Dome Flange on CNFX, but this spec remains the most cost-effective."

Related Components

Machine Frame
The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.
pH Sensor Assembly
Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications
Load Cell Assembly
Precision load cell assembly for automated powder dispensing systems
Dust Collection Port
A dust collection port is a critical component in automated powder dispensing systems that captures airborne particulates at the source to maintain clean air quality and prevent cross-contamination.

Frequently Asked Questions

What is the main difference between a dome flange and a standard flat flange?

A dome flange is curved to match the geometry of dome-shaped structures, ensuring uniform load distribution and preventing stress concentrations, whereas flat flanges are designed for cylindrical or flat surfaces.

Can dome flanges be used in high-temperature applications?

Yes, when made from appropriate materials like stainless steel or alloy steels, dome flanges can operate in temperatures up to 400°C, depending on the gasket material and design pressure.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Dome Flange

Dome Crown Door Flange