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Epoxy Coated DIN 3352 Gate Valve for Corrosive Seawater, Flanged DN200
Product Spotlights
DIN 3352 flanged gate valve with high-performance epoxy coating for maximum corrosion resistance in seawater. Features ductile iron body, EPDM/NBR seats, and stainless steel stem. Ensures bidirectional sealing, easy operation, and long service life. Ideal for marine, offshore, and chemical applications requiring reliable fluid control in aggressive environments.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
Other, DIN 3352
Application:
Other, Corrosive Seawater / Marine
Valve Type:
Gate Valve
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
Other, DIN 3352
Application
Other, Corrosive Seawater / Marine
Valve Type
Gate Valve
Coating Type
Epoxy Coated
Connection Type
Flanged
Nominal Diameter (DN)
DN200
Body Material
Ductile Iron
Seat Material
EPDM / NBR
Pressure Rating
PN10 / PN16
As a leading valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust fluid control solutions for demanding environments. Our Epoxy Coated DIN 3352 Gate Valve is engineered specifically to withstand the harsh, corrosive nature of seawater and other aggressive fluids. This valve represents our commitment to combining advanced protective coatings with reliable mechanical design, ensuring long-term performance and reduced maintenance costs for your critical piping systems in marine, offshore, and coastal applications.
The core value of this valve lies in its exceptional corrosion resistance. The high-performance epoxy coating, applied through a controlled process, forms a durable, impermeable barrier that protects the valve body from pitting, galvanic corrosion, and chemical attack commonly encountered in seawater service. This extends the valve's service life significantly compared to standard uncoated or poorly protected valves.
Key Features & Technical Advantages:
- Superior Corrosion Protection: The fusion-bonded epoxy (FBE) coating is applied to a precise thickness, ensuring complete coverage on both internal and external surfaces, including the flange faces. This coating is resistant to a wide pH range and chloride-induced corrosion.
- DIN 3352 Compliance: Manufactured to DIN 3352 standards, this flanged gate valve ensures dimensional interchangeability, reliable sealing performance, and compatibility with European piping system specifications.
- Robust Construction: The valve body is typically made from high-grade ductile iron, providing strength and impact resistance. The wedge is often stainless steel or epoxy-coated to match the body's corrosion resistance.
- Bidirectional Sealing: Designed for tight shut-off in both flow directions, the valve utilizes a flexible wedge or parallel slide design with resilient seats (EPDM or NBR standard), ensuring zero leakage even after numerous cycles.
- Easy Operation & Maintenance: Features a non-rising stem design with an ISO-standard handwheel or gear operator (optional). The flanged ends simplify installation and connection to existing DN200 pipelines.
- Versatile Application Scope: While ideal for seawater intake/discharge, cooling water, and ballast systems, it is also suitable for other corrosive media in chemical processing, wastewater treatment, and power plants.
Detailed Technical Specifications:
| Parameter | Specification |
| Design Standard | DIN 3352 F4 / F5 |
| Nominal Diameter | DN200 (8") |
| Connection | Flanged, PN10/16, DIN 2501 |
| Body Material | Ductile Iron (GGG40/50) with Epoxy Coating |
| Seat / Seal Material | EPDM (Standard for seawater), NBR, Viton optional |
| Stem Material | Stainless Steel (AISI 304/316) |
| Wedge Material | Ductile Iron with Epoxy Coating or Stainless Steel |
| Temperature Range | -10°C to +120°C (with EPDM seat) |
| Pressure Rating | PN10 (10 bar) / PN16 (16 bar) |
| Operation | Handwheel (Standard), Gear Operator (Optional) |
Benefits for Your Project:
- Cost-Effective Longevity: The epoxy coating drastically reduces corrosion-related failures, minimizing replacement frequency and total cost of ownership.
- Reduced Maintenance: The robust design and protective coating lead to lower operational downtime and maintenance interventions.
- System Reliability: Ensures dependable on/off control in critical seawater systems, preventing leaks and protecting downstream equipment.
- Global Compliance: Adherence to DIN standards facilitates use in international projects, particularly in European and global marine industries.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of epoxy coating over other protective methods for seawater valves?
A: Epoxy coating provides a continuous, non-porous barrier that is highly resistant to chloride ions, abrasion, and cathodic disbondment, offering more comprehensive and durable protection than paint or galvanizing for submerged or splash zone service. -
Q: Is this valve suitable for full submersion in seawater?
A: Yes, the epoxy coating applied is specifically formulated for full immersion service. The quality of the coating application is critical, and our process ensures it meets the requirements for continuous underwater exposure. -
Q: Can you provide different flange standards, like ANSI, instead of DIN?
A: Yes. While the standard offering is DIN flanges, we can manufacture this epoxy-coated gate valve with ANSI B16.5 Class 150 flanges or other standards upon request to match your existing piping. -
Q: What is the typical delivery time for a DN200 valve?
A: For standard DN200 epoxy-coated valves, the delivery time is typically 4-6 weeks. We maintain some stock for common specifications, and expedited production can be arranged. -
Q: Do you offer actuation options for this valve?
A: Absolutely. This valve can be fitted with electric, pneumatic, or hydraulic actuators. We provide complete automated valve packages tailored to your control system requirements. -
Q: How does the epoxy coating affect the valve's pressure rating?
A: The coating is applied to the finished casting and does not compromise the mechanical strength of the base material. The valve retains its full pressure rating (PN10/PN16) as per the DIN 3352 standard. -
Q: What quality control measures are in place for the coating?
A: Our process includes surface preparation (blasting), coating application under controlled conditions, and rigorous inspection for thickness, adhesion (cross-cut test), and holiday detection (pinhole test) to ensure coating integrity. -
Q: Are spare parts like seals and gaskets readily available?
A: Yes. We supply a full range of genuine spare parts—including seat rings, seals, and gaskets—ensuring long-term support and easy maintenance for your valves.
Backed by our ISO9001-certified manufacturing processes and an annual export value demonstrating global trust, Shanghai Zhibang delivers valves that meet rigorous international standards. Our products reach diverse markets from North America and Europe to Southeast Asia and the Middle East, proving their adaptability and reliability. Served from major ports like Shanghai and Guangzhou, your order is handled with efficient logistics. Choose our Epoxy Coated DIN 3352 Gate Valve for a solution that combats corrosion proactively, enhances system lifespan, and delivers unwavering performance in your most challenging seawater applications. Contact us today for a detailed quotation or to discuss your specific project requirements.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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