LIANGGU delivers a batch of aluminum bronze 3-way ball valve assemblies for marine seawater filtration systems.

Lianggu Aluminum Bronze Linked Double Three-Way Ball Valve Assembly


Applications: Marine Seawater Filtration Systems


The continuous operation of large marine engines relies on a stable seawater cooling system.


Within this system, the continuous operation of the filter directly affects the safety and stability of the entire system.


Marine seawater filtration systems typically employ a dual-path design: one path in operation and one on standby; or one path under maintenance while the other continues to operate.


So, how can a two-path filtration system achieve uninterrupted, reliable switching?


Lianggu Valves recently delivered the C95800 aluminum bronze linked double three-way ball valve assembly, manufactured and delivered precisely to meet this requirement.


It is designed for seawater media, dual-path redundancy, and continuous operation, ensuring safe and reliable switching between the two paths.


The continuous operation of large ship engines relies on a stable seawater cooling system.


Within this system, the uninterrupted operation of filters directly affects the safety and stability of the entire system.


Ship seawater filtration systems typically use a dual-line configuration: one line in operation while the other is on standby, or one line under maintenance while the other continues working.


So how can the two filtration lines switch reliably without shutdown or interruption?


The C95800 Aluminum Bronze Actuated Dual Three-Way Ball Valve Assembly recently delivered by LIANGGU Valve is designed precisely for this requirement.

It is engineered for seawater service, dual-line redundancy, and continuous operation, ensuring safe and reliable switching between the two lines.

What makes this product "special"?


Structurally, this product employs a dual three-way ball valve linkage design.


Two three-way ball valves operate synchronously through a linkage mechanism, enabling rapid switching between two filtration channels without altering the system's predetermined flow direction.


The core function is not flow diversion, but reversal:


1- Dual Valve Linkage, Synchronous Switching


The linkage control of the upper and lower valve bodies avoids the asynchrony issues caused by independent operation of multiple valves, making the switching action more direct and clear.


2- Fits Dual-Channel Filter Operating Conditions


Suitable for system designs with one operating channel and one standby channel, and also suitable for the rapid switching requirements during online filter maintenance.


3- Improves System Operational Certainty


In continuous ship operation scenarios, the more critical the switching point, the more crucial it is to reduce human uncertainty. The linkage valve assembly essentially reduces the risk of system switching.

If structure addresses the switching issue, then material addresses lifespan and stability.


This valve assembly body is made of C95800 aluminum bronze.


In the marine and offshore engineering fields, this is a mature and representative seawater-resistant material, particularly suitable for seawater media conditions in high-salt, high-humidity, and highly corrosive environments.


Its main advantages include:


- Excellent resistance to seawater corrosion;


- Good resistance to chloride ion corrosion;


- Strong resistance to erosion;


- Good resistance to cavitation.

Applicable Scenarios


The C95800 aluminum bronze interlocking double three-way ball valve assembly is suitable for the following operating conditions:


- Marine seawater filtration systems


- Marine cooling seawater systems


- Offshore platform seawater piping


- Seawater medium dual-path switching systems


- One-use-one-standby redundant piping systems


This type of interlocking valve assembly has clear application value in any scenario that requires reliable dual-path switching, seawater corrosion resistance, and continuous system operation capability.

Currently, we offer a variety of three-way ball valves in L-type and T-type flow path configurations to meet different media, pressure levels, and system operating conditions. Materials include WCB, CF8, CF8M, stainless steel, duplex steel, and aluminum bronze, suitable for diversion, merging, reversing, and dual-path switching applications in industries such as petroleum, chemical, shipbuilding, power, water treatment, and marine engineering.


To meet diverse project needs, our products can be equipped with manual, pneumatic, and electric actuators, and we support customization for special operating conditions such as high temperature, high pressure, corrosion resistance, and erosion protection.


From standard three-way ball valves to multi-stage three-way valve manifolds for complex operating conditions, Lianggu continuously focuses on the "switching" requirements in industrial fluid control, accumulating experience in product manufacturing and engineering applications to provide stable and reliable valve solutions for more complex pipeline systems.

Currently, we can provide a wide range of three-way ball valves in L-port and T-port configurations to meet different media, pressure ratings, and operating conditions.

Available materials include WCB, CF8, CF8M, stainless steel, duplex stainless steel, and aluminum bronze, widely applied in flow diverting, mixing, switching, and dual-line changeover systems across oil & gas, chemical processing, marine, power generation, water treatment, and offshore industries.

According to project requirements, the valves can be equipped with manual, pneumatic, or electric actuators, and support customized solutions for high-temperature, high-pressure, corrosion-resistant, and anti-abrasion service conditions.

From standard three-way ball valves to linkage-operated three-way valve assemblies for complex operating systems, LIANGGU continues to build extensive manufacturing and engineering experience around industrial flow switching applications, providing reliable valve solutions for demanding pipeline systems.