Expander and orifice forged steel flanges are specialized components designed to address two critical applications that standard flanges cannot handle: smooth pipe size transitions and flow measurement integration.

Expander forged steel flanges facilitate seamless connections between smaller and larger pipelines with smooth internal transitions, making them ideal for pump suction systems, control valve bypasses, and meter stations. Orifice forged steel flanges incorporate pressure tap holes and securely hold orifice plates used by flow computers for accurate flow rate measurement.

Both flange types undergo comprehensive hydrostatic testing in our workshop, ensuring reliability for measurement and safety-critical installations. Our expander and orifice forged steel flanges are precision-machined from forged and heat-treated blanks, manufactured to ASME B16.36 standards for orifice flanges and ASME B16.5 for expander flanges.

Orifice flanges can be supplied complete with orifice plates, jacking screws, and pressure taps ready for immediate installation. All tap hole positions are drilled and verified according to your specific metering requirements. Every flange in this product range undergoes 100% hydrostatic testing and is accompanied by comprehensive test reports and material certification.

• Expander flanges provide smooth bore transitions that minimize turbulence and erosion at size change points
• Orifice flanges feature precision-drilled tap hole positions for reliable and accurate flow measurement
• Complete hydrostatic testing with individual test reports for every unit
• Comprehensive orifice flange sets available including plates, gaskets, and jacking screws
• Forged and heat-treated blanks ensure superior material integrity for high-pressure metering applications
• Custom drilling patterns and facing configurations available according to customer specifications

Given the dimensional criticality of expander and orifice forged steel flanges, each unit undergoes thorough inspection against relevant standard specifications and customer drawings prior to testing. Orifice flange tap hole positions are verified using coordinate measurement technology, ensuring precision alignment.

Every expander and orifice forged steel flange undergoes comprehensive hydrostatic testing with detailed recorded test reports. Our extensive experience supplying these specialized components to metering skid builders and pipeline contractors is supported by complete documentation packages that provide full traceability for project acceptance and regulatory compliance.