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Home > Industrial Equipment & Components > Valve > Butterfly Valve > 316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 thumbnail-3

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 thumbnail-4

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 thumbnail-5

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 photo-1

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 photo-2

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 photo-3

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 photo-4

316L Stainless Steel Disc Marine Butterfly Valve DIN 3202 for Seawater, Cast Iron Body, EPDM, PN10-PN16 photo-5

Product Spotlights

Engineered for harsh marine use, this butterfly valve features a 316L stainless steel disc for superior seawater corrosion resistance and a robust cast iron body. Compliant with DIN 3202 standards and rated for PN10-PN16 pressure, it ensures reliable performance in shipbuilding, offshore, and desalination applications. The EPDM seat provides excellent sealing against seawater. A cost-effective, durable solution backed by ISO9001 manufacturing and global export experience.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

DIN 3202

Application:

Other, Seawater

Body Material:

Cast Iron

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Standard DIN 3202

Application Other, Seawater

Body Material Cast Iron

Disc Material 316L Stainless Steel

Seat Material EPDM

Pressure Rating PN10-PN16

Connection Type Wafer or Lug (based on DIN 3202)

Operation Lever, Gear, or Actuator (optional)

Port of Shipment Shanghai, Guangzhou, Hong Kong, Beijing

As a leading manufacturer with ISO9001-certified production, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance 316L Stainless Steel Disc Marine Butterfly Valve. Engineered specifically for demanding seawater applications, this valve combines the corrosion resistance of 316L stainless steel with the robust construction of a cast iron body, ensuring reliable flow control in harsh marine environments. Built to DIN 3202 standards with a pressure rating of PN10-PN16, it offers a durable and cost-effective solution for shipbuilding, offshore platforms, desalination plants, and coastal infrastructure projects worldwide.

Our valve is designed to deliver exceptional performance and longevity. The key features and technical specifications are detailed below:

Superior Corrosion Resistance: The disc is manufactured from 316L stainless steel, which contains molybdenum for enhanced resistance to pitting and crevice corrosion in chloride-rich environments like seawater.
Robust Body Construction: The valve body is made from high-grade cast iron, providing excellent mechanical strength and impact resistance, suitable for marine piping systems.
Reliable Sealing Performance: Features an EPDM (Ethylene Propylene Diene Monomer) seat, known for its outstanding resistance to seawater, ozone, and weathering, ensuring a tight seal and long service life.
Compliant Design: Manufactured in accordance with DIN 3202 standards, ensuring dimensional compatibility and performance reliability for European and international marine applications.
Versatile Pressure Rating: Suitable for working pressures up to PN16 (16 bar), covering a wide range of standard marine system requirements from PN10 to PN16.
Compact and Lightweight: The butterfly valve design offers a compact profile and lower weight compared to gate or globe valves, simplifying installation and saving space.
Bi-Directional Flow: Capable of handling flow in both directions, providing flexibility in system design and installation.
Low Torque Operation: The design ensures low operating torque, which can be easily managed by manual levers, gear operators, or automated actuators (available upon request).

The technical specifications for common sizes are summarized in the following table:

Nominal Diameter (DN)	Approx. Length (L)	Pressure Rating	Seat Material
DN50	43 mm	PN10/16	EPDM
DN80	46 mm	PN10/16	EPDM
DN100	52 mm	PN10/16	EPDM
DN150	56 mm	PN10/16	EPDM
DN200	60 mm	PN10/16	EPDM

Benefits for Your Operations:

Extended System Life: The combination of 316L SS disc and EPDM seat significantly reduces maintenance frequency and replacement costs caused by seawater corrosion.
Enhanced Safety & Reliability: Compliance with DIN 3202 and robust construction minimize the risk of leaks or failures in critical marine piping systems.
Cost-Effective Solution: Offers a favorable balance between performance and price compared to valves made entirely from high-alloy materials.
Global Compatibility: The DIN standard design ensures easy integration into new or existing systems for shipyards and marine engineers worldwide.
Operational Flexibility: Available with various actuation options (lever, gear, pneumatic, electric) to suit different levels of automation.

Backed by our ISO9001 quality management system and nearly a decade of manufacturing expertise since our establishment in 2016, Shanghai Zhibang guarantees product consistency and performance. With an annual export value ranging between US$1 Million and US$1.5 Million, our valves are trusted by clients across North America, South America, Europe, Asia, Africa, and Oceania, delivered efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing. This proven track record in global marine supply chains underscores our commitment to delivering durable, specification-compliant valves that stand up to the toughest seawater conditions. For a reliable flow control partner that combines material excellence with standardized design, contact us for detailed specifications, pricing, and customized solutions.

Frequently Asked Questions (FAQ):

Q: Why is 316L stainless steel specifically chosen for the disc in seawater applications?
A: 316L stainless steel contains molybdenum, which provides superior resistance to chloride-induced pitting and crevice corrosion, common in seawater. The "L" denotes low carbon content, reducing the risk of sensitization and intergranular corrosion during welding or in high-temperature service.
Q: Is the cast iron body suitable for permanent immersion in seawater?
A: While the cast iron body offers excellent mechanical strength, it typically requires a protective coating or lining for permanent immersion to prevent general corrosion. For above-waterline or intermittently wetted service in marine atmospheres, standard cast iron with appropriate paint is often sufficient.
Q: What are the temperature limits for the EPDM seat material?
A: EPDM seats generally perform well within a temperature range of approximately -40°C to +120°C (-40°F to +248°F). For seawater applications, it is important to note that EPDM offers good resistance to the oxidizing effects of ozone and weathering.
Q: Does PN10-PN16 mean the valve can be used at both pressure ratings?
A: Yes, this valve is designed and tested to be suitable for use at both PN10 (10 bar) and PN16 (16 bar) pressure ratings. The specific allowable working pressure depends on the temperature of the medium; refer to the pressure-temperature rating chart for precise values.
Q: What types of end connections are available for this DIN 3202 valve?
A: Butterfly valves conforming to DIN 3202 are typically available in wafer-style or lug-style designs. The wafer type is installed between two flanges using through-bolts, while the lug type has threaded inserts (lugs) allowing it to be bolted directly to a flange at each side, supporting the pipeline.
Q: Can this valve be supplied with an actuator for remote operation?
A: Absolutely. We can provide this valve configured with manual lever or gear operation as standard. Pneumatic (double-acting or spring-return) and electric actuators are available as optional accessories to enable automated or remote control.
Q: Are spare parts like seals or discs readily available?
A: Yes, as the manufacturer, we maintain an inventory of critical spare parts, including EPDM seats and 316L stainless steel discs. This ensures quick availability for maintenance and repair, minimizing downtime for your operations.
Q: What is the typical lead time for orders?
A: Lead times vary based on order quantity, valve size, and configuration (e.g., with or without actuator). Standard sizes are often available from stock or have shorter production cycles. Please contact us with your specific requirements for an accurate delivery schedule.