ANCV – Axial Nozzle Check Valve
The axial nozzle check valve is the preferred solution for preventing return flow or shocks on critical process equipment. Typically used on rotating devices and systems where low pressure loss, stable operation, and smooth dynamic behaviour is essential.
Often it does not become evident until a plant is operating that the selected non-return valves slam heavily and produce high pressure peaks that damage surrounding equipment.
The inherent non-slam characteristic of this axial nozzle check valve is achieved because the valve reacts so quickly to flow changes, ensuring no reverse flow or shocks occur within the piping system.
Size: 4″ to 60″
ANSI Class: 150 to 1500
Std. Materials: Carbon Steel (Special Materials on Request)
Temperature Range: Up to 650oC
Axial Flow Control Valve
The Axial Flow Control Valve is design for special applications requiring high flow capacity, the precise control from a linear motion closure member, and reduced turbulence and vibrational effects.
An ideal application is centrifugal compressors, as commonly used in gas transmission compressor stations, petro-chemical installations, which display a potentially destructive phenomenon called “surge”. Surge is a reversal of high velocity flow that can have catastrophic consequences to the compressor. To protect the compressor, the anti-surge valve control valve must open very fast and eject the surge. These valves have to be fast acting but also have high capacity and anti-noise designs.
Due to the high capacity of the axial flow valve, several stages can be used in order to reduce the noise level of these applications. The crank-lever system design of the Axial Flow Control Valve, transform a small torque into a big thrust, allowing the valve to require smaller actuator sized, which in consequence increases precision and speed of control.
These control valves can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.
Size: 4″ to 48″
ANSI Class: 150 to 2500
Std. Materials: Carbon Steel, Stainless Steel
Temperature Range: -58 to 482oF (-50 to 250oC)