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Help CenterDN50-DN600 PN16 Marine Wafer Butterfly Valve Compliant With DIN 3202
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and high-performance fluid control solutions for demanding industrial and marine applications. Our DN50-DN600 PN16 Marine Wafer Butterfly Valve, engineered in strict compliance with the DIN 3202 standard, represents our commitment to quality, durability, and precise engineering. Designed specifically for the rigorous conditions of marine environments, this valve offers a compact, lightweight, and highly efficient sealing solution for seawater, ballast, cooling, and other shipboard piping systems. With an annual export value demonstrating our global reach across continents from North America to Oceania, we understand the critical need for valves that ensure operational safety and longevity at sea.
This marine-grade wafer butterfly valve is engineered to deliver exceptional performance where it matters most. Its robust construction and carefully selected materials resist corrosion from saltwater and harsh chemicals, ensuring reliable service life. The wafer design allows for easy installation between ANSI or DIN standard flanges, saving significant space and weight compared to lug-type or flanged valves – a crucial advantage in ship design. The precision-machined disc and resilient seat create a bubble-tight seal in both directions, preventing leakage and maintaining system integrity. Available with various actuation options, it integrates seamlessly into automated control systems onboard modern vessels.
Key Features & Technical Advantages:
- Compact & Lightweight Wafer Design: Ideal for space-constrained marine installations, reducing overall system weight and supporting vessel efficiency.
- Bidirectional Sealing: The elastomeric seat provides effective sealing against pressure from either direction of flow, enhancing system safety.
- Corrosion Resistance: Standard materials and optional coatings are selected to withstand saline, atmospheric, and chemical exposure common in marine operations.
- Low Torque Operation: The streamlined disc design and low-friction seat minimize operating torque, allowing for smoother manual operation or smaller, more economical actuators.
- Durable Stem Design: The stem is fully isolated from the media, preventing corrosion and ensuring smooth, reliable operation over thousands of cycles.
- Versatile Actuation: Can be fitted with manual lever, gear operator, or electric/pneumatic actuators for remote or automated control as required by the application.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Design & Manufacturing Standard | DIN 3202 F4 / ISO 5752 |
| Pressure Rating | PN16 (16 bar / 232 psi) |
| Size Range (Nominal Diameter) | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Face-to-Face Dimension | Per DIN 3202 Series F4 |
| Body Material (Standard) | Cast Iron GG25 / Ductile Iron GGG40 |
| Disc Material (Standard) | Stainless Steel CF8 (AISI 304) / CF8M (AISI 316) |
| Stem Material | Stainless Steel AISI 431 / 17-4PH |
| Seat Material (Standard Options) | EPDM (for water, seawater), NBR (for oils, fuels) |
| Temperature Range (with EPDM seat) | -15°C to +120°C (+5°F to +248°F) |
| Seat Leakage Rate | Bubble-tight (Zero Leakage) per seat design |
Benefits for Marine Engineers & Shipyards:
- Simplified Installation & Maintenance: The wafer design eliminates the need for valve-end nuts, speeding up installation between flanges and reducing maintenance downtime.
- Cost-Effectiveness: Offers a reliable sealing solution at a competitive price point compared to more complex valve types, without compromising on performance for standard marine duties.
- System Reliability: Consistent performance under variable pressures and temperatures contributes to the overall reliability of critical shipboard systems like cooling, firefighting, and ballast management.
- Global Compliance: Compliance with DIN 3202 ensures acceptance in international marine projects and simplifies procurement for global fleets.
Backed by our ISO9001 certified manufacturing processes, Shanghai Zhibang ensures every valve meets stringent quality controls before shipment from major ports like Shanghai, Guangzhou, or Hong Kong. Our extensive experience supplying to diverse markets across North America, Europe, Asia, and Africa means we are adept at meeting the specific documentation, packaging, and logistical requirements of international marine clients. Choosing our DIN 3202 compliant marine butterfly valve means partnering with a dedicated manufacturer focused on delivering durable, specification-matched components that contribute to vessel safety and operational efficiency. Contact us today to discuss your project requirements, request detailed CAD drawings, or obtain a competitive quotation tailored to your specific needs in marine fluid control.
Frequently Asked Questions (FAQ):
-
Q: What does 'wafer type' mean, and how is it installed?
A: A wafer-type butterfly valve is designed to be installed between two pipeline flanges using through-bolts. It does not have its own flange bolts or threaded ends. The valve is positioned between the flanges, and longer bolts are passed through all three components (flange-valve-flange) to clamp them together, creating a compact and lightweight connection. -
Q: Is this valve suitable for seawater service?
A: Yes, it is designed for marine applications. When specified with a stainless steel disc (AISI 316), an EPDM seat, and optionally with epoxy-coated body, it provides excellent corrosion resistance for handling seawater, ballast water, and other saline fluids. -
Q: Can this valve be used for throttling or flow control?
A: While primarily an on/off isolation valve, it can be used for moderate throttling applications. For precise flow control, especially with actuators, it is recommended to consult our technical team to select the appropriate disc and seat combination and actuator type for the specific duty. -
Q: What is the difference between PN16 and Class 150 ratings?
A: PN16 is a metric pressure rating (16 bar) commonly used with DIN/ISO standards. Class 150 is an ANSI rating (~20 bar at ambient temperature). They are similar but not identical. Our PN16 valve is typically suitable for systems designed to DIN standards. Compatibility with ANSI Class 150 flanges should be verified based on pressure-temperature ratings. -
Q: Are actuators available, and what types?
A: Yes, actuation is optional. We can supply electric actuators (on/off or modulating control) or pneumatic actuators (double-acting or spring-return). The specific model depends on valve size, required torque, and control signal (e.g., 4-20mA, 24VDC, 110/220VAC). -
Q: What certifications do you provide with the valve?
A: Our manufacturing facility is ISO9001 certified. Material certificates (3.1 Mill Test Certificates) for body, disc, and stem materials are available upon request. Specific marine society approvals (e.g., ABS, DNV, LR) can be discussed as a customizable service. -
Q: What is the typical lead time for an order?
A: Lead time varies based on order quantity, size, and material specifications. Standard configurations in common sizes often have shorter lead times. We provide reliable production schedules upon order confirmation to facilitate your project planning. -
Q: How do I select the right seat material?
A: Seat material depends on the media and temperature. EPDM is standard for fresh water and seawater. NBR is suitable for oils and fuels. For specific chemicals or extreme temperatures, other materials like Viton (FKM) can be explored. Our technical team can assist in selection.
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