Marine MD Series Lug Type Butterfly Valve

About product

The Marine MD series lug type butterfly valve is specifically designed for marine applications, offering a range of convenient features. This lug butterfly valve allows for online repair of downstream pipelines and equipment, eliminating the need for system shutdowns and minimizing downtime. Additionally, it can be installed on pipe ends as an exhaust valve, providing a simple solution for pressure release or gas venting. The lugged body alignment feature makes installation between pipeline flanges easy and efficient, resulting in time and cost savings. With its practical design and versatile functionality, the MD series lug type butterfly valve is an ideal choice for reliable fluid control in marine environments.

Additional information


Lug type


DN 50~DN600


PN10/PN16/150 psi/200 psi

Face to face Standard

EN558-1 Series 20,API609

Product Detail

Exhaust Butterfly Valve – MD Series Lug Type Butterfly Valve

The MD series lug type butterfly valve, specifically designed as an exhaust butterfly valve, is indeed an excellent choice for marine applications. Its versatility and range of options make it well-suited for meeting various system requirements.

With a size range from DN 50 to DN 600, the exhaust valve offers flexibility in terms of accommodating different pipe sizes commonly found in marine exhaust systems. This wide size range ensures that you can select the appropriate valve size to match your specific application.

Furthermore, the exhaust valve is available with different pressure options, including PN10, PN16, 150 psi, or 200 psi. This allows you to choose the pressure rating that aligns with the requirements of your marine system, providing the necessary strength and durability to handle the exhaust gases effectively.

Marine MD Series Lug Type Butterfly Valve Features

  • Compact and Lightweight: This exhaust butterfly valve is small in size, light in weight, and easy to handle. It allows for convenient installation and maintenance while saving space in the system.
  • Quick Operation: The simple and compact structure enables a quick 90-degree on-off operation, facilitating efficient flow control.
  • Reliable Seal: The disc of the exhaust butterfly valve has a two-way bearing, ensuring a perfect seal and preventing leakage even under pressure tests.
  • Precise Regulation: The flow curve of the exhaust valve tends to be a straight line, providing excellent regulation performance for precise control of the media flow.
  • Material Versatility: The exhaust valve is available in various materials, allowing it to be used with different types of media, enhancing its versatility.
  • Resilient Design: It is designed to withstand harsh conditions, featuring strong wash and brush resistance, making it suitable for challenging working environments.
  • Low Torque Requirement: The center plate structure of the exhaust butterfly valve ensures low torque is needed for opening and closing, reducing energy consumption.
  • Long Service Life: The lug butterfly valve is built to withstand frequent use, withstanding thousands of opening and closing operations while maintaining its performance.
  • Cutting-off and Regulation: The exhaust valve can be used for both cutting off and regulating media, providing flexibility in its application.

Parameter Of MD Series Lug Type Butterfly Valve



Know Who We Are

About our company

Zava Marine Corporation is a leading supplier of marine parts and components. With a strong focus on quality and customer satisfaction, we specialize in providing a comprehensive range of high-quality marine equipment and accessories. Our products include deck equipment, ship accessories, and various other essential components needed for smooth maritime operations.

With a global presence, we serve a diverse customer base, including shipbuilders, shipowners, offshore operators, and marine equipment distributors. We are committed to providing exceptional service and tailored solutions to meet our customers’ unique needs.


Zava Marine offers a comprehensive range of certifications for marine parts in accordance with international standards and regulations. These certifications include those provided by renowned marine classification societies such as Lloyd’s Register (LR), Bureau Veritas (BV), China Classification Society (CCS), Registro Italiano Navale (RINA), American Bureau of Shipping (ABS), Nippon Kaiji Kyokai (NK), and Det Norske Veritas – Germanischer Lloyd (DNV-GL). By collaborating with these esteemed societies, Zava Marine ensures that our certified marine parts meet the highest standards of safety, quality, and performance, instilling confidence in our reliability and compliance within the maritime industry.

The warranty provided by Zava Marine covers defects in materials and workmanship for a period of two years from the date of purchase. During this warranty period, if any marine parts purchased from Zava Marine exhibit issues or failures resulting from manufacturing defects or faulty materials, Zava Marine will take responsibility for repair or replacement of the affected parts. 

Zava Marine has recently opened new molds for European and North American clients, utilizing materials such as metal, ABS, PVC, and more. These successful mold opening projects allow us to provide customized marine parts and components that meet the specific requirements of our clients in these regions.

Typically, Zava Marine can ship samples within 7 days once the product drawing has been mutually confirmed by both parties. This efficient process ensures that customers can receive samples promptly, allowing them to assess the quality and suitability of the products.

Zava Marine frequently utilizes a wide range of materials in our projects. These materials include aluminum, stainless steel, carbon steel, copper, plastics, titanium, and PEEK (Polyether Ether Ketone). Each material offers unique properties and characteristics suitable for various marine applications. 

Yes, we provide customization services for marine parts. We understand that every project and application may have unique requirements, and we are committed to delivering tailored solutions. By collaborating closely with our clients, we can adapt our products to specific specifications, ensuring optimal fit, performance, and compatibility. Whether it’s modifying existing designs or creating entirely new parts, our customization services cater to the diverse needs of the maritime industry.

Absolutely! We offer product design and development services to support our clients’ needs. Our experienced team of engineers and designers can collaborate with clients from concept development to final product realization. By leveraging our expertise in marine engineering and design, we can provide valuable insights and innovative solutions. Whether it’s optimizing existing designs or creating entirely new products, we are equipped to assist clients in bringing their ideas to life efficiently and effectively.

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