Veriflo Flow Controllers

The Restek Veriflo SC423XL flow controller is the heart of the canister sampling train. As canister vacuum changes during sampling, this high-quality device helps maintain a constant flow rate, which is critical in obtaining an accurate, time-integrated air sample. The entire sample flow path is made of stainless steel and can be Siltek treated for maximum inertness. The interchangeable critical orifice provides a flow range that can then be fine-tuned using the flow controller.

• The critical orifice in a Veriflo flow controller is interchangeable.
• Veriflo SC423XL flow controllers are offered in a Siltek and stainless steel version.
• The flow device is available with or without a critical orifice.