Watts VULCAIN Butterfly Valve
Description
Wafer-Type: DN50 to DN600
Lug-Type: DN50 to DN600
U Shape: DN150 to DN600
Vulcanised-Liner Technology for HVAC Performance & Reliability
The Watts VULCAIN butterfly valve is engineered for long-term reliability, energy efficiency, and high performance across modern HVAC systems. Featuring a permanently bonded EPDM liner, it delivers consistent, leak-free sealing while protecting against corrosion and wear.
Its optimised body profile and extended neck design support full insulation coverage, reducing thermal losses and improving overall system efficiency. With low operating torque and high flow capability, VULCAIN ensures reliable performance even in dynamic HVAC circuits.
Special Features
Vulcanised EPDM liner
Provides full corrosion protection, eliminates seat movement, and ensures long-term leak-free sealing, and maintains integrity under negative pressure or vacuum conditions.
Thermally optimised body design
Reduces heat loss and improves HVAC system efficiency.
Extended neck for insulation
Allows full insulation thickness while preventing thermal bridging.
Low torque operation
Reduces actuator size and cost while improving reliability.
Universal flange compatibility
Simplifies installation with PN10/16 compatibility across wafer and U-shape bodies.
Maintenance-free construction
Eliminates routine servicing and reduces the total cost of ownership.
Product Range Highlights
Multiple body types for flexibility
Wafer type: compact and economical
Lug type: supports isolation and maintenance
U-shape type: reinforced for larger systems
High-performance flow characteristics
Smooth disc design and one of the best Kv on the market enable efficient operation in high-flow conditions.
Applications
Chilled water systems
Heating hot water systems
Condenser water circuits
District heating & cooling networks
Fan coil units (FCU) & AHUs
Pump discharge isolation
Plant rooms and boiler/chiller systems
