Pneumatic remote lug butterfly valve

Body: Cast Iron, Ductile Iron, Aluminum Stainless Steel,CF8,CF8M,CF3M
Disc: Stainless Steel CF3M,CF3,CF8M, Nylon Coated Ductile Iron, Aluminum Bronze, Double Stainless Steel,2507,1.4529
Stem: Stainless Steel
Seats: NBR,EPDM,PTFE,VITON, FKM* Polyurethane
Size: 1″ – 40″ (25mm – 1000mm)
Flange accommodation: EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN 10/ PN 16
JIS 5K/10K
Top flange:ISO5211
Temperature range: -40 °C to + 135 °C (depending on pressure, medium and material)
Body style: LUG


    The Marine Pneumatic Lug Butterfly Valve is an embodiment of technical excellence and superior design in the valve manufacturing industry. This particular valve is engineered to provide optimal performance in marine environments, where resilience and reliability are of paramount importance.

    Marine pneumatic butterfly valve is made of aluminum bronze and nickel bronze, suitable for sea water, these marine valves are designed to endure the rigorous conditions of maritime operations. The lug-style butterfly valve offers a bi-directional, bubble-tight seal with a 0° to 90° rotational disc, ensuring precise flow control under high-pressure conditions.

    Incorporating advanced pneumatic actuation technology, the Marine Pneumatic Lug Butterfly Valve provides smooth and efficient operation, reducing maintenance requirements and enhancing operational longevity. The pneumatic actuator reduces the manual effort required for valve operation, thus improving operational safety and efficiency.

    In summary, the Marine Pneumatic Lug Butterfly Valve exemplifies our expertise in the valve manufacturing industry, combining robust construction, precise control, and advanced technology to meet the demanding needs of marine applications.

    Industry-approved reliability – Our Pneumatic Remote Lug Butterfly Valve holds classification society certificates from CCS, ABS, LR, NK, BV, KR, RS, DNVGL. This level of recognition speaks to the quality control and global reach of our valves.

    • Quality materials for maximum performance – With a range of body and disc options such as cast iron, ductile iron and CF8M stainless steel, coupled with stem options in stainless steel and seats in NBR, EPDM, PTFE or VITON materials – our valve is built to withstand extreme temperatures ranging from -40°C to +135°C.
    • Versatile sizing for any application – Our valve’s size range accommodates a variety of needs from 1″ to 40″ (25mm – 1000mm). Whether you need flange accommodation in EN 1092 PN 6/PN10/PN16 or ASME Class 150 standards, we’ve got you covered with ISO5211 top flanges for added convenience.
    • Securely seats with confidence – The LUG body style ensures secure seating for your peace of mind. And with options for Nylon Coated Ductile Iron or Double Stainless Steel discs, you can trust that our valve will perform reliably in even the most demanding environments.

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    What is a marine valve?

    A marine valve, also known as a ship valve or a maritime valve, is an essential component in any vessel’s plumbing system. It serves as a control mechanism that regulates the flow of liquids or gases within the ship.

    There are many types of marine valves used on different parts of the ship, each with its unique function and design. However, they all share the common goal of ensuring safe and efficient operations at sea. Let’s dive into some key details about these valves that make them essential for any seafaring vessel.

    Firstly, marine valves are designed to withstand harsh conditions commonly found in marine environments such as high pressure, extreme temperatures and corrosive substances like seawater. This durability is crucial because failure in these critical components can lead to disastrous consequences.

    Remote Control Butterfly Valves

    What are the marine valves suitable for seawater?

    When it comes to marine valves, the suitability for seawater is of utmost importance. The harsh and corrosive nature of seawater poses a significant challenge for any valve that has to function in such an environment. As a marine engineer with years of experience, I can confidently say that there are several types of valves that are suitable for use in seawater applications.

    Firstly, let’s understand the criteria by which we judge the suitability of a valve for seawater usage. The main factors include corrosion resistance, durability, reliability, and efficiency. With these criteria in mind, let me introduce you to some impressive options for marine valves suitable for seawater.

    1) Stainless Steel Valves: This type of valve is widely used in various industries due to its exceptional corrosion resistance properties. In addition to being resistant to chemical attack from seawater, stainless steel also has high strength and toughness levels required for heavy-duty applications on ships and offshore structures. Furthermore, stainless steel valves have low maintenance needs and provide excellent sealing capabilities.

    2) Bronze Valves: Another popular choice among marine engineers is bronze valves made from copper alloys such as brass or aluminum bronze. These materials possess superior corrosion resistance against saltwater due to their non-oxidizing properties. Additionally, bronze valves have higher heat conductivity than other metals commonly used in valve manufacturing; this feature allows them to withstand rapid temperature changes without compromising their integrity.

    3) Titanium Valves: For ultra-corrosive environments like those found in deep-sea oil rigs or nuclear submarines, titanium valves are the go-to option due to their unparalleled corrosion resistance capabilities compared to other metals commonly used in valve production. Though they may come at a higher cost upfront when it comes down long-term performance and reliability – titanium reigns supreme!

    4) Duplex Stainless Steel Valves: If your operation requires an extra level of protection against saline environments’ corrosive effects – look no further than duplex stainless steel valves. This type of valve is highly resistant to pitting, crevice and stress corrosion cracking making them suitable for seawater applications. Moreover, their high strength and toughness make them an optimal choice for valves that need to withstand extreme conditions.

    5) Rubber Lined Valves: Unlike the previous options, rubber-lined valves are not a metal material but consist of a metal valve coated with a layer of rubber on the inside. This coating provides excellent resistance against abrasion and chemical attack from seawater while also providing good sealing capabilities. However, these types of valves may require more frequent replacements due to wear and tear.

    In conclusion, marine valves suitable for seawater come in various shapes and sizes; however, all must possess exceptional corrosion resistance properties along with durability, reliability and efficiency. As an experienced marine engineer who has worked on various vessels in different environments worldwide – I can assure you that any of the above-mentioned valve types will meet your needs effectively! So choose wisely based on your specific application requirements and confidently navigate through even the most challenging seas without worrying about valve failure!

    b43 valve

    Which shipbuilding systems should marine butterfly valves be used in?

    When it comes to shipbuilding, there are a plethora of systems and components that go into creating a reliable and efficient vessel. From propulsion systems to electrical systems, every aspect plays a crucial role in the overall functionality of the ship. In this regard, marine butterfly valves play an integral part in ensuring smooth operations and safety on board.

    Firstly, let’s understand what marine butterfly valves are and how they work. These valves are essentially quarter-turn rotary motion valves that are used to regulate or isolate the flow of liquids or gases within pipes. They consist of a disc with a rod through its center that rotates 90 degrees to either allow or block the flow of fluid. This simple yet effective design makes them ideal for use in various shipbuilding systems.

    One key system where marine butterfly valves can be utilized is in ballast water management. Ballast water is essential for maintaining stability and balance on ships, but it can also carry harmful organisms that can harm marine ecosystems when released into different waters. Therefore, strict regulations have been put in place to treat and manage ballast water before it is discharged back into the ocean.

    Marine butterfly valves with their quick opening and closing capabilities make them perfect for controlling the entry and exit points of ballast water treatment systems on ships. They ensure precise regulation of fluid flow while minimizing any potential leakage risks.

    Another critical application area for these valves is in fuel oil transfer systems onboard vessels. With increasing environmental concerns, there has been a push towards more eco-friendly fuels such as liquefied natural gas (LNG) or alternative energy sources like hydrogen cells for powering ships.

    In this scenario, marine butterfly valves come into play by controlling the flow between different tanks storing these fuels during loading or unloading processes. Their compact design allows them to be installed easily in tight spaces while still providing accurate control over fuel transfer operations.

    Furthermore, these versatile valves can also be used in sewage treatment plants aboard ships, where they regulate the flow of sewage water and aid in its disposal. They can handle high pressures and corrosive fluids, making them suitable for use in these systems.

    In conclusion, marine butterfly valves are a valuable component in shipbuilding systems due to their reliable functionality, versatility, and ability to handle various fluids. Whether it’s ballast water management, fuel transfer, or sewage treatment, these valves play an essential role in ensuring smooth operations and maintaining safety on board ships. So if you’re involved in the shipbuilding industry or are looking for ways to optimize your vessel’s systems, incorporating marine butterfly valves is definitely a worthy investment.