DIAPHRAGM VALVE VOYAGE MARINE AUTOMATION Heavy-Duty Flow Isolation

The DIAPHRAGM VALVE VOYAGE MARINE AUTOMATION is a precision-engineered elastomeric and metallic isolation valve designed specifically for aggressive, particulate-laden, and corrosive fluids in marine, offshore, and industrial processing systems. By completely sealing off the working mechanism and bonnet from the internal fluid flow path using a flexible diaphragm, it eliminates stem leakage, prevents cross-contamination, and provides tight shut-off even when handling slurries or brackish water.

Built in strict compliance with BS 5156 and JIS 10K design specifications, every DIAPHRAGM VALVE VOYAGE MARINE AUTOMATION is rigorously inspected and shell/seat pressure tested under BS 6755 standards. Available in nominal sizes up to 200 mm (with larger dimensions above 200 mm engineered on request), these valves support seamless integration with manual handwheels, pneumatic control actuators, or electric drive units.

Key Features of the DIAPHRAGM VALVE VOYAGE MARINE AUTOMATION

• Zero-Leakage Hermetic Isolation: The flexible elastomer diaphragm isolates internal operating parts from line fluids, protecting the stem and bonnet assembly against corrosion and clogging.

• BS 6755 Pressure & Leakage Certified: 100% factory inspected and tested for shell integrity and bubble-tight seat isolation under high pressure.

• Flexible Actuation Methods: Available with manual handwheels for localized control, or integrated with high-efficiency pneumatic and electric actuators for automated shipboard control systems.

• Marine Metallurgy Options: Crafted in premium corrosion-resistant materials including Gunmetal (BS 1400 LG4C), Nickel Aluminium Bronze (NAB / NES 747), Stainless Steel (CF8/CF8M), and Cast Steel (WCB).

• Broad Size Availability: Standard production runs up to 200 mm nominal pipe size, with custom sizes above 200 mm supplied directly via Voyage Marine Automation.

• Streamlined Flow Path: Designed for minimal pressure drop, easy inline flushing, and low risk of sediment accumulation.

Primary Applications

• Marine & Naval Vessels: Seawater cooling systems, bilge and ballast water management, brine discharge, and deck drainage

• Offshore Facilities: Produced water filtration, chemical dosing, and slop tank fluid handling

• Industrial & Chemical Plants: Slurry transportation, raw water treatment, acid/alkali dosing lines, and compressed air networks

Technical Specifications

Package Contents

• 1 × DIAPHRAGM VALVE VOYAGE MARINE AUTOMATION Unit (specified size & actuation type)

• BS 6755 Pressure & Factory Inspection Certificate

• Technical Operation & Actuator Maintenance Guide