Lined Butterfly Valves


Fully Lined High Performance Butterfly Valves.

The Aegis® BFV series fully lined butterfly valves feature the most advanced technology available for controlling and isolating corrosive, ultra-pure, and highly-toxic process liquids and gases. The BVF series valves are designed, engineered, and manufactured under a company-committed quality assurance process that has been audited and approved by the SQS ISO 9001:2015 for Quality and Management Systems and the PED (Pressure Equipment Directive) 97/23/EG for mechanical integrity. The unique geometric profiles of the disc and liner eliminate the cold flow and deformation issues typical of conventional lined butterfly valves, resulting in a conditional, environmentally safe, life time shaft seal guarantee.
BFV Valve Standard Features
Application Isolation and Control of Corrosive and Highly-Toxic Process Liquids and Gas
Standards 16.5, 16.42, MS 25/55, API 609
Size 2"-16"
Body Material ASTM A395 DI
Trim Paraflon Liner, PFA Lined Duplex SS One-Piece Disc and Stem
Temperature Rating -40°F to 400°F
Pressure Rating 145 PSIG
Process Sealing ANSI Class 6 Shutoff
Stem Sealing Live Loaded
Connection Type ASME 150#
Control Characteristics Equal Percentage
Flow Direction Bi-Directional
Design Benefits
Double D Stem Connection 
Precision Molded & Machined One Piece Disc/Stem,
Minimum 3mm Thick PFA Liner,
Integral Gear Mounting Flange,
ISO 5211 Mounting Flange,
Dynamically Loaded Mechanical Shaft Seal,
Radially Loaded Atmospheric Seal,
Enhanced Resilient 360 degrees Elastomeric Energizer,
High Strength A193 B7 Fasteners,
Blowout Proof Stem,
Wide Sealing Paraflon® Raised Face Flange,
Epoxy Coated Body,
Applicable Standards
ASME B16.5 - Standard Flange Dimensions
ASME B16.10 - Face-To-Face and End-to-End Dimensions of Valves
ASME B16.42 - Valve Body Minimum Wall Thickness
API 598 - Details for the Testing and Inspection Requirements for Butterfly Valves.
API 609 - Purchase Specifications for Lug and Wafer Type Butterfly Valves
MSS SP-25 - Standard Marking Systems for Valves, Fittings, Flanges, and Unions
MSS SP-67 - This Standard Practice Covers Dimensions, Design, Testing and Marking Requirements for Butterfly Valves.
Chlorine Institute Pamphlet #6 - Piping Systems for Dry Chlorine
ISO 5211 European Standard Requirements for the Attachment of Part-Turn Actuators
DIN 3230 - Technical Delivery Conditions for Valves

Get started

Offering the best line of valve, pipe, and fittings for all your systems