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High Performance Wafer Butterfly Valve Manufacturer in Europe – Valvesonly Europe
Valvesonly Europe is a High Performance Wafer Butterfly Valve Manufacturer in Europe, specializing in precision-engineered double-offset valves for high-pressure and high-temperature flow control applications. Designed and manufactured in compliance with API 609, EN 593, ASME B16.34, and PED 2014/68/EU, our valves deliver dependable shut-off, low torque operation, and long service life in demanding industrial environments.
Function & Working
A high-performance wafer butterfly valve uses a double-offset (eccentric) disc design, where the shaft is offset from both the valve centerline and the seat plane. This geometry ensures that the disc contacts the seat only at the final closing moment, reducing friction, extending seat life, and providing reliable sealing. The wafer body fits between flanges, centered by bolts, allowing quick installation and space-saving design ideal for compact pipelines and retrofit projects.
Advantages
Compact and lightweight body design for easy installation
Double-offset geometry for reduced seat wear and torque
High sealing performance for steam, gas, and liquid service
Bidirectional flow and bubble-tight shut-off
Low-maintenance design with replaceable seat and disc options
Conforms to API 609, EN 593, and ASME B16.34
Types of High-Performance Wafer Butterfly Valves Manufactured
Double Offset Wafer Butterfly Valve
Triple Offset Wafer Butterfly Valve
PTFE Lined High-Performance Butterfly Valve
Metal Seated Butterfly Valve
Fire-Safe Butterfly Valve
Gear Operated and Actuated Butterfly Valve
Industries Served
Oil and Gas Pipelines and Refining
Power Generation and Steam Distribution
Chemical and Petrochemical Plants
Water and Wastewater Treatment
Marine and Offshore Installations
HVAC and Fire Protection Systems
Materials (Body, Disc, Shaft, and Seat)
| Component | Material | Standard / Grade | Typical Application |
|---|---|---|---|
| Body | Ductile Iron | EN-GJS-400-15 / ASTM A536 | Water, HVAC, and general-purpose lines |
| Body | Carbon Steel | ASTM A216 WCB / WCC | Oil, gas, and process industries |
| Body | Stainless Steel | CF8 / CF8M (SS304 / SS316) | Corrosive or chemical service |
| Body | Duplex / Super Duplex | ASTM A890 F51 / F53 / F55 | Seawater and offshore systems |
| Body | Aluminium Bronze | C95400 / C95800 | Marine, desalination, and brine service |
| Disc | Stainless Steel / Duplex / Aluminium Bronze | A351 CF8M / A890 F51 / C95800 | High strength and corrosion resistance |
| Shaft | SS410 / SS420 / SS431 / SS316 | ASTM A276 | High torque and wear resistance |
| Seat | PTFE, RPTFE, Metal (Stellite / Inconel) | — | Soft or metal sealing depending on media |
| Coating | Fusion Bonded Epoxy (≥250 µm DFT) | AWWA C550 | External corrosion protection |
Technical Specifications
Design Standards: API 609, EN 593, ASME B16.34, PED 2014/68/EU
Testing Standards: API 598, EN 12266-1 (Hydrostatic and Leak Tests)
Size Range: DN50 – DN1800 (2″ – 72″)
Pressure Ratings: PN10 – PN100 / ANSI Class 150 – 600
Temperature Range: –40 °C to +400 °C (depending on material and seat)
End Connections: Wafer Type, suitable for EN 1092 / ASME B16.5 flanges
Operation: Handwheel, Gear, Pneumatic, or Electric Actuation
Special Features
Double-offset disc for minimal seat wear and extended life
Fire-safe and anti-static construction
ISO 5211 top flange for direct actuator mounting
Replaceable seat and seal design for easy maintenance
Bidirectional sealing under full-rated pressure
Tight shut-off even in high-pressure differential conditions
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