Wafer Type Butterfly Valve

Concentric (Resilient Seated) Wafer Butterfly ValveConcentric (Resilient Seated) Wafer Butterfly Valve
Double Offset (High Performance) Wafer Butterfly ValveDouble Offset (High Performance) Wafer Butterfly Valve
Triple Offset Wafer Butterfly Valve (Metal Seated)Triple Offset Wafer Butterfly Valve (Metal Seated)
PTFE Lined Wafer Butterfly ValvePTFE Lined Wafer Butterfly Valve
Pneumatic actuated wafer butterfly valvePneumatic actuated wafer butterfly valve
Bronze Wafer Type Butterfly ValveBronze Wafer Type Butterfly Valve

ANSI / ASTM | DIN / EN | ISO Standard Wafer Type Butterfly Valves manufacturer & Exporter

What is a Wafer Type Butterfly Valve?

A wafer type butterfly valve is a compact quarter-turn valve designed to regulate or isolate flow in a pipeline. It is installed between two flanges and held in place by flange bolts, making it lighter and more space-efficient than traditional gate or globe valves. Wafer butterfly valves are widely used in water treatment, HVAC, chemical processing, marine and industrial piping systems

The Engineered Solution for Space-Constrained Pipelines

When your piping layout demands a lightweight, durable and cost-effective isolation solution, our Wafer Type Butterfly Valve delivers. Designed as a concentric butterfly valve to be sandwiched between flanges, this valve eliminates the bulk of traditional gate or globe valves without sacrificing sealing integrity.

At C-Way Engineering Exports, we specialize in providing bubble-tight shutoff valves that meet stringent international safety standards for global infrastructure projects. Our wafer style butterfly valves are manufactured according to internationally recognized ANSI, DIN, JIS and ISO standards, ensuring compatibility with American, European, Australian, Middle Eastern and other global pipeline systems.





Key Performance Features

  • Zero-Leakage Sealing: Features a concentric design with a precision-machined disc edge that ensures a 360° airtight seal against the resilient seat.
  • Low Torque, High Efficiency: Our stem-to-disc connection is engineered to minimize friction, allowing for smaller, more cost-effective actuators.
  • Anti-Blowout Stem: Safety is non-negotiable. Our internal stem-retention mechanism prevents stem ejection under high-pressure surges.
  • Self-Cleaning Disc Profile: The streamlined disc shape minimizes pressure drop ($\Delta P$) and prevents debris buildup, ensuring consistent flow coefficients ($C_v$).

Design & Construction Features

Body Construction Precision-machined wafer body compatible with ANSI B16.5, ASME B16.47, and EN 1092-1 flange standards. Heavy-duty casting ensures durability in demanding industrial service.
Disc Design Available in stainless steel, aluminum bronze, duplex stainless steel, or nickel-plated ductile iron. PTFE coated disc options available for corrosive service.
Seat Configuration Multiple seating options available depending on media and temperature:
  • EPDM – Water & HVAC
  • NBR – Hydrocarbon service
  • PTFE – Chemical applications
  • Viton – Elevated temperature service
  • Metal Seat – High temperature and steam service
Stem & Shaft Blow-out proof stem design with anti-corrosion treatment and precision bushings for smooth and reliable operation.


Technical Specifications & Standards

We build to international benchmarks to ensure your project stays compliant.

Parameter Specification
Valve Type Wafer Type Butterfly Valve
Available Designs Concentric (Resilient Seated), Double Offset, Triple Offset, PTFE Lined, Bronze (Marine Service)
Size Range DN40–DN1200 / NPS 1½”–48” (Bronze typically DN40–DN600)
ANSI Pressure Rating Class 125 / 150 (Concentric, PTFE & Bronze) ; Class 150 / 300 (Double Offset) ; Class 150 / 300 / 600 (Triple Offset)
DIN / EN Rating PN10 / PN16 (Concentric, PTFE & Bronze) ; PN16 / PN25 / PN40 (Double Offset) ; PN25 / PN40 / PN63 (Triple Offset)
Design Standards API 609, MSS SP-67, EN 593
Face to Face EN 558 Series 20 / ISO 5752
Testing Standards API 598 / EN 12266-1 / ISO 5208
Flange Compatibility ANSI B16.5 / ASME B16.47 / EN 1092-1
Mounting Standard ISO 5211 Direct Mount
Temperature Range* -20°C to +120°C (Soft Seat) ; up to +350°C (Double Offset) ; up to +550°C (Triple Offset)
Operation Lever, Gear Operated, Pneumatic Actuated, Electric Actuated
Testing Every single unit is hydro-statically tested per API 598 before leaving our facility.
*Temperature and pressure ratings depend on seat material and application conditions.

Advanced Material Options & Trim Configurations

To ensure longevity in corrosive environments, we offer a wide variety of Butterfly Valve Seat Materials and disc types:

Component Standard Option Premium/Corrosive Option
Body Ductile Iron (GGG40), ASTM A216 WCB, ASTM A351 Stainless Steel SS304/SS316, CF8/CF8M, Aluminium Bronze (C95400 / C95800)
Disc Nylon-Coated Ductile Iron SS304, SS316, Aluminium Bronze, Duplex SS
Stem SS410 (Heat Treated) SS316 / Monel
Bushings PTFE / Bronze Lubricated Bronze
*Final material selection is determined based on pressure, temperature, and media

Seat Options: The Heart of the Valve

The seat material is the difference between a 1-year and a 10-year service life.

  • EPDM (Black): Ideal for water, low-pressure steam, and alcohols. Temp: -20°C to 120°C.
  • Buna-N / Nitrile (Black): Best for oils, fats, and hydrocarbons. Temp: -10°C to 80°C.
  • Viton / FKM (White/Brown): Specialized for high temperatures and aggressive chemicals. Temp: -10°C to 180°C.
  • PTFE (White): The ultimate choice for high-purity and highly corrosive chemical media.

Operation & Automation: ISO 5211 Actuator Mounting

Our Wafer Butterfly Valves are designed for versatility. Every valve features an integrated ISO 5211 top flange for direct mounting of:

  • Pneumatic Actuators (Double Acting & Spring Return).
  • Electric Valve Actuators (On/Off or Modulating 4-20mA).
  • Manual Gear Operators or 10-position locking levers.

Why Engineers Choose Our Wafer Valves

"We transitioned our cooling tower project to these wafer valves last year. The weight savings alone reduced our structural support costs by 15%, and the bubble-tight seal has held up perfectly through 5,000+ cycles."

— A. John, Senior Mechanical Lead, Industrial Utilities



Applications: Where to Use Wafer Butterfly Valves

As a leading valve exporter, we supply diverse industries including:



Why Source from C-Way Engineering Exports?

When you choose us as your Butterfly Valve Supplier, you benefit from:

  • API 598 Testing: 100% hydrostatic and pneumatic pressure testing.
  • EN 10204 3.1 Certification: Full traceability for every valve body and heat number.
  • Fast Global Shipping: Expertise in sea-freight logistics and export-grade packaging.
  • Manufacturing aligned with ANSI, ASTM, DIN, EN, and ISO standards
  • Global export experience across industrial sectors


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Get a Project-Specific Quote Today

Looking for ANSI B16.5 or DIN EN 1092 wafer type butterfly valves for your project?

Whether you require manual, gear operated, pneumatic or electric actuated valves, C-Way Engineering Exports provides engineered solutions tailored to your pipeline specifications.



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