Double Flanged Butterfly Valve
Double Flanged Butterfly Valve Manufacturer
MVS Valves Double Flanged Butterfly Valve is engineered for precise and low-torque flow control in a wide range of pipeline systems. Designed with a concentric disc and resilient seat configuration, this valve ensures reliable shut-off and seamless operation across water, oil, gas, and chemical applications. Built in accordance with API 609, BS 5155, and ASME standards, it supports working pressures up to 16 bar and offers dependable leak-tight performance in both intermittent and continuous operations. Available in DN 50 to DN 1200 sizes, the valve is suitable for industrial pipelines that demand compactness, strength, and versatility.
The double-flanged body of this valve supports easier installation and strong mechanical strength, making sure that improved durability under fluctuating pressure conditions. MVS Valves manufactures its API 598 Double Flanged Butterfly Valve to meet rigorous performance and sealing expectations. Whether used in horizontal or vertical orientation, it delivers excellent performance without compromising flow dynamics or efficiency. To address various fluid characteristics, the valve is offered with integrally molded resilient liners and comes with a wide range of sealing materials that match industrial media requirements.
Material selection is a key strength of MVS’s design approach. Options such as Stainless Steel Double Flanged Butterfly Valve, Carbon Steel Double Flanged Butterfly Valve, Duplex Double Flanged Butterfly Valve, Duplex Stainless Steel Double Flanged Butterfly Valve and Super Duplex Double Flanged Butterfly Valve are manufactured to meet corrosive and high-pressure system demands. Whether for municipal water lines or critical chemical processing pipelines, these valves offer exceptional resistance to wear and corrosion while maintaining stable, smooth control.
With flexible actuation compatibility — manual lever, gearbox, pneumatic actuator, or electric actuator — the valve can be integrated effortlessly into automated systems or manual flow lines. The resilient seat variants are tailored using materials like EPDM, Nitrile, Viton, Hypalon, and Silicone, enhancing the valve’s chemical compatibility and lifecycle performance. This ensures the API 609 Double Flanged Butterfly Valve meets global industrial flow control expectations with consistent results across service conditions. Manufactured by MVS Valves with precision and expertise, the API 598 Double Flanged Butterfly Valve offers unmatched reliability, safety, and quality assurance, making it the preferred choice for modern industries that value performance and long-term durability.
Specification
| Specification | Details |
|---|---|
| Valve Type | Double‑flanged concentric butterfly valve |
| Size Range | 2″–50″ (DN 50–DN 1200) |
| Pressure Rating | PN 10/16, ANSI Class 125/150, PN 25 |
| Flow Torque | Low‑torque operation via lever, gearbox, pneumatic or electric actuation |
| Standards | API 609, BS 5155; tested per API 598, EN 12266‑1, ISO 5208 |
| Face‑to‑Face | ANSI B16.10 / BS 5155 / API 609 / ISO 5752 Series 13/14 |
| End Connections | Integral cast double‑flanged to ANSI B16.5, BS, DIN, JIS standards |
| Seat Leakage Class | Class VI – zero leakage |
| Actuation | Manual lever (DN≤200), worm‑gear, pneumatic, electric |
| Service Media | Water, gas, oil, chemical, steam applications |
Material of Construction
| Body & Disc | Ductile Iron (ASTM A126 Gr B) / Cast Iron; Carbon Steel (WCB); Stainless Steel CF8/CF8M | CF3/CF3M, Alloy 20, Duplex/Super Duplex, Hastelloy C‑276, Titanium |
| Seat / Liner | EPDM, NBR, Viton | PTFE, Hypalon, Silicone, metal seats |
| Stem / Shaft | Stainless Steel (e.g., A276‑410 / X20Cr13) | Duplex SS or specialty alloys |
| Bushings & O‑rings | PTFE bushings, NBR/EPDM seals | Graphite, high‑temp elastomers |
| Coatings | Epoxy powder on ductile iron (150 µm) | Special linings for chemical or potable water use |
Application Industries

Crude Oil & Natural Gas Industry

Chemical & Petrochemical Industry

Water & Wastewater Treatment

Nuclear & Thermal Power Generation

Food & Beverage Industry

Pharmaceutical & Biotechnology

Pulp & Paper Industry

Mining & Mineral Processing

Marine & Shipbuilding

HVAC & Building Services

Automotive & Paint Chemical Manufacturing

Environmental & Bio Gas Renewable Energy

Steel & Metal Processing

Fertilizer Plants, Polymer Production

Cosmetics & Personal Care

Cement & Construction

Chlor-Alkali Industry

Mineral Acids Industry
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