W1911 Wafer Type Butterfly Valve for HVAC & Industrial Pipelines
The W1911 wafer type butterfly valve fits between pipeline flanges using standard bolts, providing a compact and lightweight solution for shutoff and throttling across medium-pressure systems. Its quarter-turn operation and resilient seat sealing suit HVAC, potable water, fire protection, and general industrial pipelines.
Reliable W1911 wafer type butterfly valves, ideal for HVAC, potable water, fire safety, and industrial flow control applications. Durable and corrosion resistant. W1911 butterfly valve covers DN50 to DN1200 at PN16 pressure rating, available in lever and gear-operated configurations across a broad range of commercial and industrial pipeline applications.
At Dutco Tennant LLC, our industrial butterfly valve and wafer type butterfly valve solutions to MEP contractors and procurement teams across the UAE and GCC, sourced from established international manufacturers.
Built to Perform Across Every Pipeline
- Wafer type butterfly valve connection fits between standard pipeline flanges, reducing installation space and overall system weight.
- Quarter-turn operation allows fast, direct shutoff with clear open and closed valve positions.
- Resilient seat sealing with EPDM or NBR options suits potable water, HVAC, and industrial fluid applications.
- Available from DN50 to DN1200 at PN16 pressure rating, covering a wide range of pipeline sizes and flow conditions.
- Bi-directional flow capability allows installation in either direction without affecting shutoff or regulation performance.
Specification Strengths at a Glance
- Resilient Seat Sealing: EPDM seats within the W1911 wafer type butterfly valve handle water, glycols, and alkaline solutions; NBR seats suit oil and petroleum-compatible fluid applications.
- Corrosion-Resistant Body: Ductile iron body with epoxy coating resists corrosion in humid and chemically active pipeline environments.
- Stainless Steel Disc: CF8M stainless steel disc provides reliable sealing performance across varying flow rates and fluid types.
- Gear-Assisted Operation: Worm gear actuation on larger industrial butterfly valve sizes allows controlled, smooth torque transmission for gradual flow adjustment.
- ISO 5211 Top Flange: Standard top flange mount on the W1911 butterfly valve allows direct fitting of pneumatic, electric, or manual gear actuators without additional adaptors.
Types
Lever Operated Wafer Butterfly Valve
Quick quarter-turn on/off flow control for potable water, building services, and irrigation pipelines at DN80 to DN150.
- Intermediate locking positions for precise flow setting
- Watermark certified for potable water service
- Suitable for building services, water distribution, and general pipelines
Gear Operated Wafer Butterfly Valve
Worm gear-operated W1911 butterfly valve for larger pipelines requiring controlled actuation at DN50 to DN350.
- Gradual and precise flow adjustment on larger diameter pipelines
- Watermark certified for potable water and HVAC requirements
- ISO 5211 top flange supports direct actuator mounting
Potable Water Configuration
Safety-approved material variant of the W1911 wafer type butterfly valve for drinking water distribution and building service pipelines across DN50 to DN350.
- Materials comply with potable water approval requirements
- Available in lever and gear configurations
- Suitable for district cooling, plumbing, and process water distribution
Isolation Service Configuration
A wafer type butterfly valve configuration for pipeline segment isolation in operational or maintenance control roles.
- Clear open and closed indication at all times
- Reduces mechanical complexity in isolation-only pipeline roles
- Suitable for HVAC plant rooms, utility, and industrial distribution networks
Industrial Butterfly Valve — Actuated Configuration
Bare shaft variant compatible with pneumatic or electric actuators for automated flow control across large-scale pipeline systems.
- ISO 5211 flange allows direct actuator mounting without intermediate brackets
- Suited to remote-controlled and automated pipeline management applications
- Available across the full DN50 to DN1200 size range
Standout Features & Benefits
Compact and Lightweight Build
- Fits between flanges without additional face-to-face length
- Reduces load on adjacent pipework and supporting structures
- Lower installation time compared to flanged valve alternatives
Reliable Sealing Performance
- EPDM and NBR seat options cover fluid compatibility across commercial and industrial pipelines
- No-pin seat structure keeps the seal firmly in position during operation
- Maintains bubble-tight shutoff across repeated open and close cycles
Flexible Actuation Options
- Compatible with lever, gear, pneumatic, and electric actuator configurations
- ISO 5211 top flange allows actuator changes without modifying the W1911 butterfly valve body
- Gear-assisted operation available on larger sizes where lever operation is not practical
Wide Size and Pressure Coverage
- W1911 wafer type butterfly valve covers DN50 to DN1200 across building services to large industrial mains
- PN16 pressure rating suits HVAC, potable water, and fire protection requirements
- Single valve series simplifies procurement across multi-pipeline installations
Application Area
HVAC and Building Services
- Controls chilled water, condenser water, and heating circuits in commercial HVAC systems
- Compact wafer type butterfly valve body suits confined plant room layouts in high-rise developments
- Gear-operated variants manage flow in larger diameter riser and distribution pipelines
Potable Water Distribution
- Watermark-certified W1911 wafer type butterfly valve configurations meet safe drinking water material requirements
- Suitable for isolation and regulation across water supply risers and distribution mains
- Covers size range required for both building service and infrastructure water supply projects
Fire Protection Systems
- Fast quarter-turn operation and clear valve position indication suit fire suppression pipelines
- Corrosion-resistant materials maintain performance during long standby periods
- Compatible with standard fire protection system pressure and connection requirements
Industrial and Process Pipelines
- Industrial butterfly valve configurations handle treated water, cooling water, and general industrial liquids
- NBR seat variants suit petroleum-compatible fluid applications in manufacturing facilities
- Actuated configurations integrate with automated pipeline control across industrial plants
FAQ
What is a wafer type butterfly valve and how does it work?
A wafer type butterfly valve is installed between pipeline flanges and uses a rotating disc to control flow. Its quarter-turn operation allows quick shutoff and efficient flow regulation in compact piping systems.
Where is the W1911 butterfly valve commonly used?
The W1911 butterfly valve is widely used in HVAC systems, water distribution networks, and general industrial pipelines where reliable flow control and isolation are required.
What makes an industrial butterfly valve suitable for pipeline systems?
An industrial butterfly valve is designed for durability, ease of operation, and space-saving installation, making it ideal for large-scale and high-demand pipeline applications.
Can a wafer type butterfly valve be used for both isolation and flow control?
Yes, a wafer type butterfly valve can be used for both shutoff (isolation) and throttling (flow control), depending on system requirements.
Is the W1911 butterfly valve compatible with automated systems?
Yes, the W1911 butterfly valve can be integrated with actuators, allowing it to function efficiently in automated and remotely controlled pipeline systems.
Why choose an industrial butterfly valve over other valve types?
An industrial butterfly valve offers a lightweight design, quick operation, and cost-effective installation, making it a practical choice for modern pipeline infrastructure.
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