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Pneumatic Butterfly Valve for Marine Ballast Water Treatment Systems

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Product Spotlights

Designed for harsh marine environments, this pneumatic butterfly valve ensures reliable, automated control in ballast water treatment systems. Features corrosion-resistant materials (cast iron/SS), bubble-tight sealing (EPDM/PTFE seats), and robust pneumatic actuators for fail-safe operation. Supports compliance with IMO/USCG standards, offering durability and efficiency for global shipping applications.
Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Marine Ballast Water Treatment Systems
Material:
Cast Iron, Ductile Iron, Stainless Steel, Bronze
Connection Type:
Wafer, Lug, Flanged
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Application Other, Marine Ballast Water Treatment Systems
Material Cast Iron, Ductile Iron, Stainless Steel, Bronze
Connection Type Wafer, Lug, Flanged
Actuator Type Double Acting Pneumatic, Spring Return
Seat Material EPDM, NBR, PTFE, Viton
Disc Material Stainless Steel, Aluminum Bronze, Coated
Size Range DN50 to DN600 (2“ to 24“)
Pressure Rating PN10, PN16, ANSI 150
Operation On/Off, Modulating Control
Temperature Range -20°C to +120°C

As a dedicated manufacturer with a focus on quality and reliability, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our specialized Pneumatic Butterfly Valve engineered specifically for Marine Ballast Water Treatment Systems. Since our establishment in 2016, we have committed ourselves to producing valves that meet the rigorous demands of the global maritime industry. Our valves are designed to provide precise, reliable, and durable control in the critical process of ballast water management, ensuring compliance with international regulations and protecting marine ecosystems. This product represents our dedication to innovation and our understanding of the unique challenges faced in marine applications.

Our Pneumatic Butterfly Valve is a cornerstone component for modern ballast water treatment (BWT) systems. It is designed to handle seawater, treated water, and the various chemicals used in the treatment process. The valve's robust construction and precise actuation ensure seamless integration into automated control panels, allowing for remote operation and monitoring essential for modern vessel management.

Key Features and Technical Advantages:

  • Corrosion-Resistant Construction: Available in a variety of materials including cast iron with epoxy coating, ductile iron, and stainless steel (CF8/CF8M) to withstand harsh marine environments, saline water, and chemical exposure from treatment solutions.
  • High-Performance Sealing: Features resilient seats made from EPDM, NBR, or PTFE, providing excellent bubble-tight shut-off even after prolonged cycling, which is critical for preventing cross-contamination between ballast tanks.
  • Pneumatic Actuator Reliability: Equipped with double-acting or spring-return pneumatic actuators that offer fast response times, high torque output, and fail-safe operation (open or close) in case of air supply loss, ensuring system safety.
  • Low Torque & Easy Operation: The offset disc design minimizes operating torque, reducing the size and cost of the required actuator and ensuring smooth, low-friction operation over the valve's lifespan.
  • Compact & Lightweight Design: The wafer or lug-style body provides a space-saving and weight-saving solution compared to other valve types, a crucial factor in marine vessel design where space and weight are at a premium.
  • Bi-Directional Flow Capability: Engineered to seal effectively against pressure from either direction, accommodating the dynamic flow conditions present in ballast filling and discharge cycles.

Technical Specifications Table:

Parameter Specification
Size Range DN50 (2") to DN600 (24")
Pressure Rating PN10, PN16, ANSI 150
Body Materials Cast Iron (Epoxy Coated), Ductile Iron, WCB, CF8 (304SS), CF8M (316SS), Bronze
Disc Materials Stainless Steel 304/316, Aluminum Bronze, Ni-Al-Bronze, Coated Carbon Steel
Seat Materials EPDM, NBR, PTFE, Viton (FKM)
Stem Material Stainless Steel (304/316), Monel
Actuator Air Supply 4-7 bar (Standard), Other pressures available
Operating Temperature -20°C to +120°C (Depending on seat material)
End Connection Wafer, Lug, Double Flange
Standards ISO 9001 Manufacturing Quality System

Benefits for Your Ballast Water Treatment System:

  • Enhanced System Reliability: Reduces downtime and maintenance costs associated with valve failure, ensuring continuous operation of the BWT system.
  • Regulatory Compliance Support: Reliable isolation and control are fundamental for effective treatment, helping ship owners and operators meet IMO D-2 and USCG standards.
  • Operational Efficiency: Fast actuation speed allows for quick ballast cycle times, and automated control integrates seamlessly with the vessel's central management system.
  • Long Service Life: Corrosion-resistant materials and robust design ensure longevity in the challenging marine environment, providing a strong return on investment.
  • Global Service Support: With our products exported to markets across North America, South America, Europe, Asia, Africa, and Oceania, we understand global requirements and can support your needs.

Trust in a manufacturer with a proven track record. Shanghai Zhibang Valve's operations are backed by an ISO9001 certified quality management system, ensuring consistent product quality from raw material to finished valve. With an annual export value ranging between US$1 Million to US$1.5 Million, we have established ourselves as a reliable partner for shipyards, system integrators, and vessel operators worldwide. Our strategic shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing enable efficient logistics to all our main markets. Choose our Pneumatic Butterfly Valve to gain a component that combines durability, precision, and compliance for your critical ballast water management needs. Contact us today to discuss your specific requirements or to request a detailed quotation.

Frequently Asked Questions (FAQ):

  1. Q: What makes this butterfly valve suitable specifically for ballast water treatment systems?
    A: It is designed with materials resistant to seawater corrosion and chemicals used in treatment (like chlorine). The sealing is robust to prevent leakage between tanks, and the pneumatic actuator allows for reliable remote automation, which is essential for BWT system control panels.
  2. Q: Can you provide valves with specific certifications like ABS, DNV, or LR?
    A: We manufacture valves that can be supplied for certification. Material documentation and testing reports are available. Final certification is typically arranged by the shipyard or owner with the classification society, and we support this process with necessary factory documentation.
  3. Q: What is the lead time for an order of these valves?
    A: Lead time varies based on size, material, and quantity. Standard configurations typically have a shorter lead time. We recommend contacting our sales team with your specific list for an accurate production schedule.
  4. Q: Do you offer different actuator options, such as electric or hydraulic?
    A: Our core offering for this application is pneumatic, which is preferred for its safety and speed in marine environments. Electric and hydraulic actuation can be discussed as custom options based on your system design.
  5. Q: How do I select the right seat material for my application?
    A: Seat selection depends on the treatment chemicals and temperature. EPDM is common for general seawater, NBR has good oil resistance, PTFE offers wide chemical resistance, and Viton is for higher temperatures and more aggressive chemicals. Our engineers can assist in selection.
  6. Q: Are spare parts like seals and gaskets readily available?
    A: Yes, we maintain an inventory of common spare parts and can provide seal kits for maintenance. We recommend keeping a set of critical spares on board for quick replacement.
  7. Q: Can the valve be used for modulating (throttling) control, or is it only for on/off?
    A: While primarily designed for reliable on/off service, these valves can be configured with a positioning device on the pneumatic actuator for modulating control, if required by your BWT system's process logic.
  8. Q: What is your packaging standard for export to prevent damage during sea freight?
    A: Valves are individually packed in wooden crates or plywood boxes. The actuator is protected, and all openings are sealed to prevent ingress of moisture and contaminants during transit.
Product Tags: Marine Butterfly Valve , Pneumatic Ballast Valve , Ballast Water Treatment Valve

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Gold Verified Supplier
1Yr
Verified Business License
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001