A major valve manufacturer serving both India and the US required design and engineering support for the development of a Triple Offset Butterfly Valve, with a specific target to improve the valve’s flow coefficient (Cv) through casting body optimization and CFD-driven validation.

Working onsite in Pune alongside the client’s product development team, ALTEN supported the full valve development cycle — from casting body design updates through 3D modeling, CFD analysis, and manufacturing-ready detailing.

The scope included:

• Participation in Triple Offset Butterfly valve design & development
• Valve casting body updates targeted at improving Cv (flow coefficient)
• CFD analysis to measure the impact of casting body changes
• 3D modeling and detailing of valve GA drawings across various sizes
• Detailing of valve components for manufacturing release

Challenge:

Flow Performance Optimization

• Improving the valve’s Cv (flow coefficient) without compromising sealing performance or structural integrity
• Validating the impact of casting body design changes through simulation rather than physical prototyping alone

Casting Body Redesign Complexity

• Modifying the casting body design while maintaining compliance with ASME and API valve standards
• Balancing flow performance gains against manufacturability of the revised casting geometry

Multi-Size Product Range

• Delivering 3D modeling and GA detailing consistently across various valve sizes within the product line

Manufacturing Release Readiness

• Producing valve component detailing precise enough for direct manufacturing release
• Supporting design updates quickly based on iterative testing and CFD results within a compressed 8-month timeline

ALTEN Solutions

Casting Body Design Optimization

• Participated directly in the valve’s design & development, driving casting body updates aimed at improving Cv

CFD-Driven Validation

• Conducted CFD analysis to quantify the flow performance impact of each casting body design iteration before committing to manufacturing changes

Multi-Size 3D Modeling & GA Detailing

• Delivered 3D models and GA drawings for the Triple Offset Butterfly valve across multiple sizes, maintaining design consistency across the range

Manufacturing-Ready Component Detailing

• Produced detailed valve component drawings ready for manufacturing release, compliant with ASME B16.34, ASME B16.5, and API 6D standards

Rapid Design Iteration Support

• Supported fast-turnaround design updates in direct response to physical testing results, keeping pace with the client’s development timeline

Onsite Collaborative Delivery

• Embedded a 3-FTE team onsite in Pune working directly alongside the client’s product development team over an 8-month work package

Business Benefits

Improved Flow Performance

• CFD-validated casting body updates delivered measurable Cv improvement

Reduced Development Risk

• Simulation-driven validation reduced reliance on costly physical prototyping cycles

On-Time Delivery

• Onsite collaboration and rapid iteration support helped meet stringent project timelines

Manufacturing-Ready Output

• Standards-compliant component detailing enabled direct manufacturing release without rework

Tools, Technologies & Expertise

Engineering & Design Tools

• Autodesk Inventor
• SolidWorks
• ANSYS (CFD)

Standards

• ASME B16.34
• ASME B16.5
• API 6D

Engineering Capabilities

• Valve design & development
• CFD flow analysis
• Manufacturing detailing & release documentation

Domain Expertise

• Triple offset butterfly valve design
• Flow coefficient (Cv) optimization
• Valve casting body engineering

Where ALTEN Adds Value

• Driving measurable flow performance improvement through CFD-validated design changes
• Supporting rapid, testing-informed design iteration under tight timelines
• Delivering standards-compliant, manufacturing-ready valve documentation

Why ALTEN
ALTEN combines hands-on product development participation, CFD-driven validation, and standards-compliant detailing to help valve manufacturers hit performance targets — reliably, and within stringent project timelines.