Skip to Content Skip to Navigation

The Beaver API 594 cast wafer/lugged dual plate check valve uses two spring-loaded plates on a central hinge pin. The flow pressure moves the two half-discs off the seats to allow forward flow. When flow decreases, the discs close on to the seat and block reverse flow.

The spring-loaded disc design eliminates slamming or hammering caused by fluid backflow. This reduces wear on pipelines and pumps. It’s also a more compact and lightweight design compared to a swing check valve.

Available in wafer or lugged design, this Beaver dual plate check valve complies with API 594 standards.

Technical specifications

Brand

Beaver

Model

C51 (Class 150 Wafer)
C52 (Class 150 Lugged)
C53 (Class 300 Wafer)
C54 (Class 300 Lugged)
C55 (Class 600 Wafer)
C56 (Class 600 Lugged)

Size range

DN50–600 (2–24”)

Pressure class

Class 150/300/600

End connections

Wafer and lugged

Temperature range

-29°C to 425°C

Design and manufacture

API594

Flange dimension

ASME B16.5

Testing and checking

API598

Material specifications

Body, disc

WCB, CF8, CF8M

Seat

13Cr, SS304, SS316

Stem

13Cr, F304, F316

Spring, spacer, plug screw

SS304, SS316

Gasket

PTFE

Flying ring

WCB, SS304

How we help you choose the right valves:

1. Tell us what you need

Talk to our experts about your application, which valves and controls you need, and any repair or maintenance concerns.

2. Choose the right solution

We’ll do all the analysis, discuss the options with you, and make a recommendation—the valves we’d choose in your shoes.

3. Get the job done

Get the right valves for the job, fitted out, tested, and ready to install. We’ve got your back with ongoing repairs and maintenance.

Talk to a valve specialist

Got questions? Need advice? Our valve specialists can give you practical advice to help you get on with the job.

Valve automation & repairs

Actuators. Positioners. Controls. Valve repairs. Whatever you need, our valve workshop can handle it.