5 inch Butterfly Valves

The 5" (DN125) butterfly valve sits in a transitional size range, often bridging low-flow and higher-capacity pipelines. It’s the ideal choice for systems requiring smooth flow control with compact valve dimensions. This size is commonly used in water processing, HVAC systems, and chemical transfer lines, where consistent performance and long-term durability are key.We supply 5" butterfly valves in wafer, lugged, and double flanged configurations, with material options including ductile iron, stainless steel, carbon steel, and PTFE-lined bodies. Whether you're after manual operation or full actuation via pneumatic or electric drives, the 5" valve offers flexibility, precision, and pressure-tight sealing in one compact unit.

Key Features

Key features and benefits.
1

Key Features

The 5" butterfly valve is designed to handle moderate flow rates without taking up excessive space in the pipeline. Its size offers the perfect middle ground for projects where 4" is too small and 6" too large.
2

Key Features

Thanks to a wide range of disc and seat materials—including EPDM, NBR, PTFE, and Stainless Steel—the valve can manage liquids, gases, and corrosive chemicals. This versatility makes it suitable across many industries with different media types.
3

Key Features

Every 5" valve is supplied with an ISO 5211 mounting pad, allowing fast connection to actuators for automated operation. This makes it ideal for modern process control systems that demand precision and remote functionality.

Ductile Iron Butterfly Valves

The 5" Ductile Iron Butterfly Valve is a versatile solution for a wide range of industrial flow control applications, offering a strong balance between durability, performance, and affordability. Manufactured with a robust ductile iron body, the 20W3080 in this size is suited for systems handling water, air, chemicals, and mild process media, where mechanical strength and corrosion resistance are essential.

Its concentric design features a replaceable seat that forms a tight seal on both sides of the disc—ideal for on/off isolation or modulating flow. The ductile iron construction ensures higher tensile strength than traditional cast iron, making it suitable for higher-pressure environments while still maintaining ease of installation.

Size Range: DN32-DN1600 (1 1/4"-64")
Body Materials: GJS500-7 Ductile Iron Rilsan Coated
Disc Materials: CF8M Stainless Steel
Seat Materials: EPDM, NBR Buna, Hypalon, Viton, Silicone, High Temperature, Polyisoprene, Epichloridine
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Potable/Waste Water, Cooling Systems, Oil, Gases, Air
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Carbon Steel Butterfly Valves

The 5" 20W3080 Carbon Steel Butterfly Valve offers a rugged and cost-effective solution for demanding flow control applications across industrial, chemical, and marine environments. Constructed with a WCB carbon steel body and fitted with a replaceable concentric seat, this valve provides excellent sealing performance while maintaining durability under varying process conditions.

At the heart of the valve is a B148 Aluminium Bronze disc, delivering a strong balance of corrosion resistance and mechanical strength—ideal for use with seawater, cooling systems, and mild chemical media. The concentric design ensures bi-directional sealing, making it suitable for both on/off isolation and throttling control, depending on flow or temperature requirements.

Size Range: DN32-DN1600 (1 1/4"-64")
Body Materials: WCB Carbon Steel
Disc Materials: CF8M Stainless Steel
Seat Materials: EPDM, NBR Buna, Hypalon, Viton, Silicone, High Temperature, Polyisoprene, Epichloridine
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Potable/Waste Water, Cooling Systems, Oil, Gases, Air
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Stainless Steel Butterfly Valves

The 5" Stainless Steel Butterfly Valve offers a dependable solution for demanding flow control across industries such as chemical processing, food & beverage, pharmaceuticals, and water treatment. Built with a robust stainless steel body and disc, this valve is engineered to withstand corrosive media, elevated temperatures, and aggressive cleaning cycles.

Its concentric design features a replaceable rubber-lined seat, which forms a secure seal on both sides of the disc—ideal for both on/off isolation and modulating service. The 5" size (DN125) strikes a perfect balance between compact form and high flow capacity, making it a preferred choice for mid-size pipelines where durability and corrosion resistance are critical.

Size Range: DN32-DN1600 (1 1/4"-64")
Body Materials: CF8M 316 Stainless Steel
Disc Materials: CF8M 316 Stainless Steel
Seat Materials: EPDM, NBR Buna, Hypalon, Viton, Silicone, High Temperature, Polyisoprene, Epichloridine
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Corrosive, Chemical
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PTFE Lined Butterfly Valves

The 5" PTFE-Lined Butterfly Valve offers a highly corrosion-resistant solution for demanding applications across the chemical, pharmaceutical, and industrial processing sectors. Designed for environments where aggressive media and elevated temperatures are present, this valve combines performance, reliability, and long-term protection.

Featuring a full PTFE seat and liner, the valve ensures excellent chemical compatibility and eliminates the risk of cross-contamination—making it ideal for high-purity or hazardous flow media. The concentric body design with a replaceable seat delivers a tight seal on both sides of the disc, allowing for flexible use in both on/off and throttling roles.

Size Range: DN40-DN300 (1 1/2"-12")
Body Materials: GJS500-7 Ductile Iron Rilsan Coated
Disc Materials: CF8M Coated PTFE FDA Approved
Seat Materials: PTFE FDA Approved, UHMWPE
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Chemical, Pharmaceutical, Petrochemical, Corrosive, Food & Beverage, Water, Vacuum
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High Performance Butterfly Valves

The 5" High Performance Butterfly Valve range offers a durable and reliable solution for critical flow control in demanding industrial applications. Designed with a precision-engineered concentric or double offset body, these valves are ideal for both on/off isolation and throttling duties, providing smooth operation and tight shutoff even under higher pressures and temperatures.

Fitted with a robust Aluminium Bronze disc, this valve ensures superior resistance to corrosion—particularly in marine, chemical, and petrochemical environments. The design incorporates a replaceable seat that forms a secure seal against both sides of the disc, maintaining excellent performance over time and reducing maintenance downtime.

Size Range: DN50-DN600 (2"-24")
Body Materials: Cast Carbon Steel A216 WCB, Stainless Steel CF8M
Disc Materials: Stainless Steel CF8M
Seat Materials: RPTFE Soft Seat, F-316L Stainless Steel Hard Seat, Stellite, Hard Chromium
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Vacuum, Chemical, LPG/LNG, Hydrocarbons, Steam, Air, Bitumen, Corrosive, Thermal Oil
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Aluminium Bronze Butterfly Valves

The 5" Aluminium Bronze Butterfly Valve (model 20W3080) is a reliable solution for challenging marine, offshore, and chemical environments, where corrosion resistance is essential and long-term performance is a priority. Designed with a B148 Aluminium Bronze disc, this valve offers excellent durability and protection against seawater, brackish media, and other corrosive flows.

Featuring a concentric body design with a replaceable rubber-lined seat, the 5" valve ensures a tight seal in both on/off and throttling applications. Its smooth quarter-turn operation allows for precise flow control, while the seat design conforms to both sides of the disc, ensuring consistent sealing performance under varying conditions.

Size Range: DN32-DN1600 (1 1/4"-64")
Body Materials: B148 C9500 Aluminium Bronze
Disc Materials: B148 C9500 Aluminium Bronze
Seat Materials: EPDM, NBR Buna, Hypalon, Viton, Silicone, High Temperature, Polyisoprene, Epichloridine
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air, Desalination, Marine Applications
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Bronze Disc Butterfly Valves

The 5" 20W3080 Bronze Disc Butterfly Valve is a versatile solution designed for marine, chemical, and petrochemical applications requiring strong corrosion resistance and flexible flow control. Its B148 Aluminium Bronze disc provides exceptional durability in the face of corrosive media, while still offering a cost-effective choice where external conditions are less aggressive.

Built with a concentric design, the valve features a replaceable rubber-lined seat that forms a tight, reliable seal against both sides of the disc. This ensures excellent performance in both on/off isolation and throttling applications, giving you full control over flow and temperature regulation.

Size Range: DN32-DN1600 (1 1/4"-64")
Body Materials: GJS500-7 Ductile Iron Rilsan Coated
Disc Materials: B148 C9500 Aluminium Bronze
Seat Materials: EPDM, NBR Buna, Hypalon, Viton, Silicone, High Temperature, Polyisoprene, Epichloridine
Actuated Function: Lever Operated, Hand Wheel / Gear Box Operated, Extended / Extension Chain Wheel
Applications: Potable/Waste/Sea Water, Cooling Systems, Oil, Gases, Air
Find Out More

Frequently Asked Questions

For most wafer and lugged 5" (DN125) butterfly valves, the face-to-face length typically ranges from 70mm to 90mm, depending on the standard (EN558 Series 20 or API 609).

Yes, 5" butterfly valves are ideal for both on/off isolation and throttling control, offering a wide range of flow positions with precise modulation capabilities.

Common options include ductile iron, carbon steel, and stainless steel. Ductile iron is often preferred for its strength-to-cost ratio and resilience under pressure.

Available seat materials include EPDM, NBR, Viton, Silicone, and PTFE. Each offers different chemical and temperature resistances for various applications.

Absolutely. Most 5" butterfly valves come with ISO 5211 mounting pads, making them suitable for pneumatic, electric, or hydraulic actuation.

Pressure ratings often fall within PN10 or PN16 for metric systems and ANSI 150 for imperial/ASME systems, though higher ratings are available with high-performance designs.

Yes, they are compatible with common standards such as ANSI 150, PN10, PN16, and JIS, making them versatile for international use.

Yes, when selected with the right disc and seat materials—such as Aluminium Bronze and EPDM—they are well-suited for saltwater and offshore environments.

A 5" butterfly valve offers high Cv values, providing excellent flow capacity while maintaining a compact, lightweight design. Specific flow values vary by manufacturer.

Yes. Most 5" butterfly valves are bi-directional, allowing flow in either direction without affecting sealing performance.

Yes—provided it has the appropriate WRAS-approved EPDM seat or similar certification for drinking water applications.

They are widely used in HVAC, water treatment, chemical processing, marine, fire protection, and general industrial systems due to their reliable performance and compact design.

FAQ

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5 inch Butterfly Valves