Flowline valve
Flapper Check Valve
Compact nonreturn valve for automatic reverse-flow protection in pressure-pumping and well-service flowlines.
One-way
Flow function
Flapper
Closing mechanism
Automatic
Reverse-flow response
To spec
Connections and service
Overview
A flapper check valve permits flow in one direction through a compact in-line body. Forward flow moves the hinged flapper away from the seat; when flow stops or reverses, the flapper returns to the seat to limit reverse flow through the assembly.
- Automatic nonreturn operation without an external actuator
- Compact flapper mechanism for flowline installations
- Closes when forward flow stops or reverses
- Flow direction must be verified during installation
- Final pressure class, materials, and connections confirmed per configuration
Specifications
- Product type
- In-line nonreturn check valve
- Primary function
- Prevent reverse flow
- Closing mechanism
- Hinged internal flapper
- Operation
- Forward flow opens the flapper; stopped or reverse flow closes it
- Flow direction
- Confirm required inlet-to-outlet direction before installation
- Connections
- Configured for the selected flowline assembly
- Pressure and service
- Application-specific; confirm required rating and service class
- Typical service
- Pressure pumping, well service, and temporary flowline assemblies
Exact dimensions, materials, pressure ratings, and service limits must be confirmed for the selected configuration.
