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Home > Industrial Equipment & Components > Valve > Butterfly Valve > Marine Explosion Proof Electric Butterfly Valve for Offshore Platform Seawater Systems

Marine Explosion Proof Electric Butterfly Valve for Offshore Platform Seawater Systems

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Product Spotlights

Designed for hazardous offshore zones, this valve features an explosion-proof electric actuator for safe remote control. Built with marine-grade corrosion-resistant materials (316SS disc, epoxy body) for seawater duty. Offers reliable bi-directional shut-off, easy installation, and integration into automation systems. Enhances platform safety, reduces maintenance, and ensures operational reliability for cooling, ballast, and fire-fighting circuits.

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

Key Specifications

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Application:

Other, Seawater

Standard:

ISO9001 Certified Manufacturing

Body Material:

Ductile Iron, Cast Steel, Stainless Steel

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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
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Application Other, Seawater

Standard ISO9001 Certified Manufacturing

Body Material Ductile Iron, Cast Steel, Stainless Steel

Disc Material 316 Stainless Steel, Nickel Plated

Seat Material EPDM, NBR, PTFE, Viton

Operating Pressure PN10, PN16, ANSI 150

Connection Type Wafer, Lug, Flanged

Actuator Type Electric (Explosion Proof)

Temperature Range -20°C to +120°C

Protection Class IP67, IP68 (optional)

As a professional manufacturer with ISO9001 certified processes, Shanghai Zhibang Valve is dedicated to providing robust and reliable fluid control solutions for the demanding marine and offshore industries. Our Marine Explosion Proof Electric Butterfly Valve is engineered specifically for critical seawater systems on offshore platforms, where safety, durability, and fail-safe operation are paramount. This valve combines a high-performance butterfly valve with an intrinsically safe electric actuator, offering precise flow control and automatic operation in hazardous areas classified for explosive atmospheres. We understand the challenges of offshore environments, and our valve is built to withstand corrosive seawater, high pressures, and extreme weather conditions, ensuring the integrity and safety of your platform's vital seawater circuits for ballast, cooling, and fire protection.

Core Features & Technical Advantages:

Explosion-Proof Electric Actuator: The integrated electric actuator is housed in a certified explosion-proof enclosure, designed to prevent ignition of surrounding flammable gases or vapors. It enables remote or automated control from a safe location, eliminating the need for manual intervention in hazardous zones.
Superior Corrosion Resistance: Critical wetted parts are constructed from marine-grade materials. The disc is typically made from 316 stainless steel or nickel-plated for maximum resistance to seawater corrosion, while the seat options include EPDM, NBR, or Viton to suit specific fluid and temperature requirements.
Robust Body Construction: The valve body is available in ductile iron with epoxy coating, cast steel, or stainless steel to match the system pressure (PN10/16, ANSI 150) and provide long-term structural integrity against seawater erosion and mechanical stress.
Reliable Sealing & Bi-Directional Shut-off: The precision-engineered disc and resilient seat ensure bubble-tight sealing in both flow directions, crucial for system isolation and preventing seawater ingress into sensitive areas.
Easy Installation & Maintenance: Featuring a compact wafer or lug design, the valve is lightweight and easy to install between pipeline flanges, saving space and weight on the platform. The modular actuator design allows for easier field maintenance or replacement if needed.
Wide Operational Range: Designed to perform reliably across a broad temperature spectrum from -20°C to +120°C, accommodating varying seawater conditions and operational scenarios.

Technical Specifications Overview:

Parameter	Specification / Options
Valve Size (DN)	DN50 to DN600 (2" to 24")
Pressure Rating	PN10, PN16, ANSI 150
Connection Type	Wafer, Lug, Flanged (RF, RTJ)
Body Material	Ductile Iron (Epoxy Coated), Cast Steel, SS304/316
Disc Material	316 Stainless Steel, Nickel Plated Steel, Aluminum Bronze
Seat Material	EPDM, NBR, PTFE, Viton (FKM)
Actuator Power Supply	24VDC, 110VAC, 220VAC, 380VAC
Control Signal	On/Off, 4-20mA, 0-10V (Modulating) optional
Protection Rating	IP67 standard, IP68 available upon request
Explosion Proof Certification	Ex d IIC T6 / Ex d IIB T6 (Customizable to project requirements)

Benefits for Your Offshore Operation:

Enhanced Platform Safety: The explosion-proof design mitigates the risk of ignition in hazardous areas, protecting personnel and assets.
Operational Efficiency & Automation: Enables integration into central control systems (DCS/SCADA) for remote operation, reducing manpower needs and human error.
Reduced Lifecycle Costs: The use of corrosion-resistant materials and robust construction minimizes maintenance frequency, downtime, and replacement costs.
System Reliability: Consistent, leak-proof performance ensures the continuous and reliable operation of seawater cooling, ballast, and fire-fighting systems.
Global Compliance: Valves can be configured to meet specific international standards and project specifications for offshore applications.

With a proven track record of exporting to major offshore markets across North America, Europe, Southeast Asia, and the Middle East, Shanghai Zhibang Valve has established itself as a trusted partner for critical marine components. Our annual export value reflects the consistent quality and reliability that global clients depend on. Backed by ISO9001 certified manufacturing processes and the capability to ship from multiple major ports including Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery and product consistency. Choosing our Marine Explosion Proof Electric Butterfly Valve means investing in a solution that prioritizes safety, durability, and performance for your offshore platform's most challenging seawater applications. Contact us today to discuss your project specifications and receive a tailored quotation.

Frequently Asked Questions (FAQ):

Q: What makes this valve suitable for "explosion-proof" areas on an offshore platform?
A: The electric actuator is encased in a specially designed, certified enclosure that contains any potential internal spark or high temperature, preventing it from igniting flammable gases in the external atmosphere (Zone 1 or 2 areas).
Q: Can this valve handle raw, unfiltered seawater without corroding quickly?
A> Yes. We offer configurations with 316 stainless steel or nickel-plated discs and epoxy-coated bodies specifically to combat the highly corrosive nature of seawater, ensuring extended service life.
Q: Is the electric actuator suitable for modulating (throttling) control, or just on/off?
A> While standard units are for on/off service, we can provide actuators with proportional control (4-20mA or 0-10V input) for precise flow modulation upon request.
Q: What is the lead time for an order of these valves?
A> Lead times vary based on size, material specifications, and order quantity. Typically, standard configurations can be delivered within 4-8 weeks. We provide accurate timelines upon receipt of your detailed inquiry.
Q: Do you provide documentation like certificates and manuals?
A> Yes. Each valve shipment is accompanied by necessary documentation, including material certificates, test reports, actuator certification (if applicable), and installation/maintenance manuals.
Q: Can the actuator be replaced or serviced on-site if it fails?
A> The actuator is designed as a modular unit that can be detached from the valve stem. This allows for relatively straightforward on-site replacement or sending it for repair, minimizing system downtime.
Q: Are your valves compatible with existing flanges on my platform?
A> Our valves are manufactured to standard international flange dimensions (DIN, ANSI, JIS). Providing your flange standard and pressure class ensures we deliver a perfectly compatible valve.
Q: What after-sales support do you offer?
A> We provide technical support for installation and commissioning. A comprehensive warranty covers manufacturing defects, and we maintain a stock of common spare parts to support urgent needs.