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Help CenterGB/T3036-94 Marine Wafer Butterfly Valve DN50-DN600 With Technical Support and Warranty
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As a leading manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for the global marine and industrial sectors. Established in 2016, we have built a strong reputation for engineering excellence and dependable performance. Our GB/T3036-94 Marine Wafer Butterfly Valve series, available from DN50 to DN600, is engineered to deliver superior sealing, long service life, and ease of operation in demanding marine environments. We combine stringent manufacturing standards with comprehensive technical support and warranty coverage, ensuring our clients receive not just a product, but a complete, trustworthy solution for their critical piping systems.
This valve series is designed to meet the specific challenges of shipboard applications, including exposure to seawater, vibration, and variable pressure conditions. The compact wafer design allows for easy installation between flanges, saving space and weight – a crucial factor in marine engineering. Key features include a resilient seat that ensures bubble-tight shut-off and a corrosion-resistant disc for durability. We offer a variety of material combinations and actuation options to suit diverse operational requirements and media.
Core Product Features & Technical Advantages:
- Compliant Design: Manufactured in strict accordance with the Chinese national standard GB/T3036-94, ensuring dimensional interchangeability and performance reliability.
- Wide Size Range: Available in a comprehensive spectrum from DN50 to DN600, catering to various pipeline diameters in marine systems for cooling water, ballast, bilge, fire-fighting, and general service.
- Material Versatility: The valve body can be supplied in cast iron, ductile iron, carbon steel, or stainless steel (CF8/CF8M). The disc is typically ductile iron with epoxy/nylon coating or stainless steel, while seat materials like EPDM, NBR, or PTFE offer compatibility with water, seawater, oils, and mild chemicals.
- Superior Sealing Performance: The offset disc design and resilient seat create an effective seal with low operating torque, minimizing wear and extending service intervals.
- Multiple Actuation Methods: Can be operated manually via a lever or gearbox. For remote or automated control, the valve is easily adaptable with electric or pneumatic actuators, providing integration flexibility into modern control systems.
- Robust Construction: Designed for high cycle life and resistance to water hammer, making it suitable for frequent operation common in marine applications.
Detailed Technical Specifications:
| Parameter | Specification / Option |
| Design Standard | GB/T3036-94 |
| Face-to-Face Dimension | As per GB/T3036-94 |
| Pressure Rating | PN10, PN16 |
| Temperature Range | -10°C to 120°C (Max. depends on seat material) |
| Test & Inspection | Shell Test, Seat Leakage Test per standard |
| Flange Standard | GB, JIS, DIN, ANSI standards available |
| Paint / Coating | Epoxy coating, galvanized, or as requested |
Benefits for Our Clients:
- Reduced Maintenance & Downtime: The reliable design and quality materials minimize the risk of failure, leading to lower lifecycle costs and increased system availability.
- Simplified Inventory: A single valve type covering a wide size range simplifies your spare parts management.
- Global Compliance Support: With annual exports valued between US$1-1.5 Million to markets worldwide including North America, Europe, and Southeast Asia, we understand diverse regional requirements and can advise on compliance.
- Logistical Efficiency: We ship majorly from ports in Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring flexible and timely delivery to your project site.
Our commitment extends beyond the sale. Every GB/T3036-94 Marine Wafer Butterfly Valve is backed by our professional technical support team, ready to assist with selection, installation, and troubleshooting. Coupled with a clear warranty policy, this provides our clients with peace of mind and protects their investment. Choose Shanghai Zhibang for a partnership built on quality, expertise, and reliable delivery to global markets. Contact us today to discuss your project requirements and receive a competitive quotation.
Frequently Asked Questions (FAQ):
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Q: Is this valve suitable for seawater applications?
A: Yes, it is designed for marine use. When ordering, specify "seawater service," and we will recommend appropriate materials such as stainless steel disc/body and EPDM or PTFE seats to ensure corrosion resistance. -
Q: Can you provide valves with flanges matching ANSI standards?
A: Absolutely. While standard flanges are per GB standard, we routinely manufacture valves with DIN, JIS, or ANSI standard flanges upon request to match your existing piping. -
Q: What is included in your technical support?
A: Our support includes product selection guidance based on your media, pressure, and temperature; installation manual provision; and basic troubleshooting advice. For complex systems, detailed consultation is available. -
Q: What is the lead time for an order of DN300 valves?
A: Lead time varies by quantity and material. Standard material valves (e.g., CI/EPDM) are typically ready for shipment within 15-30 days. We provide a precise schedule upon order confirmation. -
Q: Do you offer actuated valve packages?
A: Yes, we can supply complete valve packages with electric or pneumatic actuators from reputable brands. The actuator is mounted, wired (if electric), and tested before shipment. -
Q: How does the warranty work?
A: Our warranty covers manufacturing defects in materials and workmanship for a specified period under normal use conditions. Detailed warranty terms are provided with the commercial invoice. -
Q: Can I get a sample before placing a bulk order?
A: Sample orders are welcome. Please contact our sales team to arrange a sample valve in your required size and material. Charges for the sample and freight apply. -
Q: Are your products certified for use in European marine projects?
A: We hold ISO9001 certification, which is widely recognized. For specific marine approvals like those from classification societies (e.g., DNV, ABS, BV), please inquire as these are available upon request and may involve additional testing.
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