Abacus

Abacus Check Valves

Dependable Non-Return Protection for Critical Marine Systems

When it comes to marine pipelines, flow direction matters — and failure is not an option. That’s why Abacus Check Valves are a trusted solution across the global marine industry. Designed to prevent backflow in vital systems, these valves protect equipment, maintain process integrity, and ensure compliance with maritime safety standards.

Built to perform under fluctuating pressure and corrosive conditions, Abacus check valves are used across seawater, fuel, and bilge systems on vessels of all sizes. From swing and wafer styles to spring-assisted and dual-plate designs, Abacus offers a complete portfolio tailored for the unique demands of marine flow control.


Trusted in Tough Marine Environments

- Compact & Lightweight Designs: Perfect for confined spaces common in engine rooms and shipboard installations.

- Reliable Backflow Prevention: Ensures consistent one-way flow in bilge pumps, ballast lines, fuel systems, and more.

- Marine-Grade Construction: Available in corrosion-resistant materials like bronze and stainless steel to withstand saltwater and aggressive media.

- Low Pressure Drop: Designed for smooth flow and minimal energy loss, ideal for efficient system operation.

- DNV, BV, LR Compliant: Meets industry standards for non-return valves in commercial and naval marine systems.


Engineered for Long-Term Protection

- Silent Operation Options: Spring-loaded and soft-sealing designs reduce water hammer and noise, ideal for passenger vessels.

- Versatile Configurations: Wafer, threaded, flanged, and lugged types to suit all marine piping systems.

- Maintenance-Free Designs: With few moving parts and high durability, Abacus check valves offer extended service life with minimal upkeep.

- Fast Response Time: Prevents backflow instantly to protect critical assets and avoid contamination.


Supplied by Actuation Valve – Your UK Marine Valve Specialist

Actuation Valve proudly supplies Abacus Check Valves as part of our comprehensive offering to the marine sector. With UK-based stock, fast dispatch options, and expert support, we help keep marine systems protected, flowing, and fully compliant. Whether you're outfitting a new build or replacing ageing infrastructure, we can recommend the right check valve for your application.


Marine Applications Include:

- Bilge Pump Systems

- Ballast Water Management

- Cooling Water Return Lines

- Fuel Transfer & Supply Lines

- Engine Room Protection

- Fire-Fighting Systems


Abacus – Check Valves That Stand Guard at Sea


Non-return assured. Built for saltwater.
Abacus delivers the performance and reliability needed to keep marine systems flowing safely and efficiently — with the support of Actuation Valve’s 25+ years in the industry.