Our marine wafer-type manual butterfly valve (GB/T3036-94) is ideal for various applications such as ships, pharmaceuticals, chemicals, petroleum, power plants, textiles, and paper industries.
The manual butterfly valve enables precise flow regulation and shut-off in water, gas, and fluid pipelines. Additionally, it offers the ability to compensate for thermal expansion and contraction in pipelines, ensuring reliable performance.
| Standard | GB3036-94 |
|---|---|
| Type | wafer valve |
The main features of our manual butterfly valve is its novel and rational design, unique structure, lightweight construction, easy operation, and quick opening and closing capability.
In addition to its role in flow regulation and shut-off, this wafer valve provides the function of compensating for thermal expansion and contraction in pipelines, while also offering convenience for installation, replacement, and maintenance.
The sealing components are adjustable and replaceable, ensuring reliable sealing performance.
Our manual butterfly valve (GB/T3036-1994) is produced according to various standards like GB/CB, JIS, ANSI, and DIN, with nominal pressures ranging from 5K, 10K, 16K, PN, 6PN1, 0PN16, ANSI150, LB300LB. The nominal diameter is available from DN50 to DN1200. The manual butterfly valve body materials include ductile iron QT450, cast steel ZG230-450, stainless steel SUS, and bronze BZ. The wafer valve disc is made of stainless steel SUS or bronze BZ, and the valve seat is composed of NBR rubber, PTFE, EPDM, or FKM rubber.
Design standard: GB/T3036-1994
Flange connection dimensions: GB/T9113.1-2000, GB/T9113.2-2000, GB/T9115.1-2000, GB/T9115.2-2000
Pressure test: GB/T 13927-1992, JB/T 9092-1999
A manual butterfly valve controls fluid flow using a rotating disc within a valve body. The valve is operated manually with a lever or handwheel. When turned, the disc rotates, opening or closing the valve. In the closed position, the disc blocks fluid flow, while in the fully open position, it allows unrestricted passage. The operator can adjust flow by positioning the disc at different angles. The valve has a resilient seat or liner for sealing and typically operates with a quarter-turn motion. This simple and efficient design allows for easy flow control in various applications.
| Nominal Pressure/mpa | Nominal Dimension/mm | Structure&Flange Dimension | Hole Of Nut | |||||||||||||||||
| ISO/JIS/GB | ISO(GB2501-89) | JIS | GB(GB569-65) | ISO | JIS | GB | ||||||||||||||
| H | H1 | L1 | L | D | D1 | D2 | L | D | D1 | D2 | L | D1 | D2 | n | d. | n | d. | d. | ||
| 1.0 | 50 | 215 | 80 | 235 | 43 | 165 | 125 | 102 | 40 | 155 | 120 | 98 | 43 | 103 | 98 | 4 | 18 | 4 | 19 | 16 |
| 1.0 | 65 | 235 | 90 | 235 | 46 | 185 | 145 | 122 | 40 | 175 | 140 | 112 | 46 | 123 | 104 | 4 | 18 | 4 | 19 | 16 |
| 1.0 | 80 | 298 | 108 | 254 | 46 | 200 | 160 | 133 | 60 | 185 | 150 | 125 | 46 | 138 | 118 | 8 | 18 | 8 | 19 | 15 |
| 1.0 | 100 | 348 | 143 | 254 | 52 | 220 | 180 | 158 | 60 | 210 | 175 | 144 | 52 | 158 | 138 | 8 | 18 | 8 | 19 | 15 |
| 1.0 | 125 | 378 | 143 | 254 | 56 | 250 | 210 | 184 | 60 | 250 | 210 | 178 | 56 | 183 | 164 | 8 | 18 | 8 | 23 | 15 |
| 1.0 | 150 | 417 | 160 | 340 | 56 | 285 | 240 | 212 | 70 | 280 | 240 | 207 | 56 | 208 | 190 | 8 | 22 | 8 | 23 | 15 |
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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