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Help CenterMarine Explosion Proof Electric Butterfly Valve With IP66/IP67 Protection Rating
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Shanghai Zhibang Valve Manufacture Co., Ltd. has been a trusted manufacturer of high-performance industrial valves since 2016. Our Marine Explosion Proof Electric Butterfly Valve with IP66/IP67 Protection Rating is specifically engineered to deliver reliable flow control in hazardous and demanding marine environments. Combining robust construction, certified explosion-proof safety, and superior ingress protection, this valve ensures operational continuity even under extreme conditions. We are proud to offer a solution that meets the rigorous requirements of offshore platforms, shipbuilding, and oil & gas facilities worldwide.
Key Features & Technical Specifications
Our electric butterfly valve is built to withstand corrosive saltwater, extreme vibrations, and potentially explosive atmospheres. Below are the core features that set it apart:
- Explosion-Proof Design: The actuator housing is rated Ex d IIB T4/T6 (customizable per zone requirements), ensuring safe operation in gas groups IIA & IIB and temperature classes T4/T6.
- IP66/IP67 Protection: The valve and actuator are fully sealed against dust ingress and powerful water jets (IP66) as well as temporary immersion (IP67), making it ideal for deck washdowns and heavy rain.
- Corrosion-Resistant Materials: Available in ductile iron with epoxy coating, stainless steel (CF8/CF8M), or carbon steel (WCB) to match the specific marine environment.
- High-Torque Electric Actuator: Equipped with a maintenance-free permanent magnet synchronous motor, providing reliable open/close or modulating control with position feedback.
- Manual Override: All actuators come with a manual handwheel for emergency operation during power loss.
- Double O-Ring Stem Sealing: Prevents leakage into the actuator housing and ensures long service life.
- Fire-Safe Design (Optional): Upon request, the valve can be fitted with firesafe seats (API 607) for additional safety.
| Parameter | Value |
|---|---|
| Valve Size | DN50 – DN600 (2" – 24") |
| Pressure Rating | PN10 / PN16 / Class150 |
| Body Material | Ductile Iron, CF8, CF8M, WCB |
| Disc Material | Stainless Steel 304/316, Duplex Steel |
| Seat Material | PTFE, NBR, EPDM, Viton |
| Actuator Voltage | AC220V / AC380V / DC24V (others available) |
| Protection Rating | IP66 / IP67 (both) |
| Explosion Proof Rating | Ex d IIB T4/T6 (customizable) |
| Temperature Range | -20°C ~ +80°C (wider range upon request) |
| Connection | Wafer, Lug, Flanged (ANSI/DIN/JIS) |
Benefits for Your Application
- Enhanced Safety: The explosion-proof certification significantly reduces the risk of ignition in hazardous zones (Zone 1, Zone 2, Zone 21, Zone 22).
- Reduced Downtime: IP66/IP67 sealing prevents water ingress even during high-pressure cleaning, extending actuator life in humid or wet environments.
- Easy Integration: Compatible with existing PLC/DCS systems via standard 4-20mA or Modbus RTU (optional), enabling remote monitoring and automation.
- Cost Efficiency: Maintenance-free electric actuator with manual override eliminates the need for pneumatic lines and related hardware.
- Global Compliance: Designed according to ISO 5211 mounting pad, DIN/ANSI flanges, and CE marking (available).
Why Choose Shanghai Zhibang Valve?
As a manufacturer established in 2016, we have accumulated extensive experience in serving global clients. Our annual export value of US$1 Million to US$1.5 Million reflects the trust placed in us by markets across North America, South America, Europe, Asia, Africa, and Oceania. We are ISO9001:2015 certified, ensuring that every valve undergoes strict quality control from raw material inspection to final performance testing. Our port of shipment (Shanghai, Guangzhou, Hong Kong, Beijing) offers flexible logistics options. For each order, we provide a comprehensive documentation package including material certificates, test reports, and explosion proof certificates.
We understand the critical nature of marine applications. That's why every Marine Explosion Proof Electric Butterfly Valve is pressure-tested, seat leakage-tested, and cycle-tested before leaving our factory. Our team is ready to assist with custom requirements such as special voltage, extended temperature range, or specific explosion proof certification (ATEX, IECEx). Contact us today to discuss your project needs and get a competitive quotation with fast lead time.
Frequently Asked Questions (FAQ)
1. What is the difference between IP66 and IP67?
IP66 protects against powerful water jets (e.g., hose spraying), while IP67 additionally withstands temporary immersion in water up to 1 meter depth for 30 minutes. Our valve meets both ratings.
2. Can this valve be used in Zone 0 or Zone 1 hazardous areas?
Yes – the explosion proof rating (Ex d IIB T4/T6) is suitable for Zone 1 and Zone 2 gas environments. For Zone 0, a higher protection level (Ex ia) would be required; please consult our engineers for custom solutions.
3. What control types are available for the electric actuator?
We offer on/off (single-phase or three-phase), modulating (4-20mA, 0-10V), and three-position (open/stop/close) control. Modbus RTU can be integrated optionally.
4. Is the manual override feature standard?
Yes, every actuator includes a manual handwheel for emergency operation. It is located on the side of the actuator housing and engages automatically when turned.
5. What is the typical lead time for this valve?
Standard sizes (DN50-DN300) usually ship within 15-30 working days after order confirmation. Customized valves may require 30-45 days. We prioritize urgent projects upon request.
6. Do you provide certificates for explosion proof and IP rating?
Absolutely. We supply the explosion proof certificate (from recognized testing body) and IP rating test report as part of the documentation package. ISO9001 certificate is also available.
7. Can the valve be used for seawater or brine applications?
Yes – we recommend using ductile iron body with heavy-duty epoxy coating or stainless steel 316 disc for excellent corrosion resistance in seawater. Please specify the medium when inquiring.
8. What is the warranty period?
We typically offer a 12-month warranty from the date of shipment, covering defects in materials and workmanship under normal use conditions.
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