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Technical guide · August 2, 2026

Butterfly Valve Specification Checklist for RFQs

The essential operating and project information needed for an accurate butterfly valve quotation.

Butterfly Valve Specification Checklist for RFQs

A complete enquiry reduces technical assumptions and quotation revisions. Use this checklist for each valve tag or group of identical valves.

Service conditions

Medium, concentration, solids, design pressure, differential pressure and temperature range.

Pipeline data

Nominal size, flange standard, pipe schedule, face-to-face and installation orientation.

Valve requirements

Body style, materials, seat, leakage expectation, coating and applicable standards.

Operation

Manual or actuated, fail position, cycle time, utilities, control signal and accessories.

Information to include with an enquiry

Provide nominal size, pressure rating, medium, temperature, connection standard, materials, operating method, required testing and project documentation. Greysen will review the duty and confirm the final configuration in the approved data sheet.

Talk to an engineer

Specify the right butterfly valve for your project.

Request a quotation