INDUSTRIAL VALVES
AV-900 / ENGINEERING REVIEW / R02
AV-900 Triple-Offset Butterfly Valve
Metal-seated quarter-turn valve reference for larger-bore severe-service isolation.
A triple-offset butterfly valve reference for tight shutoff and lower-torque operation in larger-diameter lines. Seat geometry and materials are selected for temperature, pressure, and cycling duty.

REFERENCE CONFIGURATION
Published selection basis
NOMINAL SIZEDN80–DN1200 reference range
PRESSURE CLASSASME Class 150–600 reference
SEATMetal-seated, torque-seated concept
CRYOGENIC OPTIONExtended bonnet and low-temperature materials by duty
STANDARDS PATHWAY
Applicability must be confirmed
- API 609 Category B
- ASME B16.34
- API 598 testing
- BS 6364 where cryogenic
Reference product family. Cryogenic suitability requires specific qualification.
APPLICATION ENVELOPE
Intended study contexts
LNG and cryogenic servicePower generationRefiningLarge-bore gas systems
CONFIGURATION PRINCIPLES
- Configuration selected from line function and hazard review
- Materials and sealing defined by the actual service
- Inspection and testing tied to the purchase specification
OPEN ENGINEERING CHECKS
- 01Confirm API 609 category, body style, flow direction, seat design, and shutoff basis.
- 02Release cryogenic qualification and torque data for each configuration.
Document AXO-AV-900-TDS-R02 · Engineering review · Issued 23 October 2026