COHERENT 5920 DYE CIRCULATOR - AS ISCOHERENT 5920 Dye Circulator AS IS A precision fluid recirculation unit for Coherent dye lasers. The 5920 circulates laser dye through the gain medium cell at controlled flow rates to maintain stable lasing conditions. Offered AS IS for parts or repair. Key Specifications Model: 5920 Flow Rate: 20200 mL min adjustable Max Pressure: 3 bar Pump Type: Magnetically coupled gear pump Materials: PTFE wetted parts, glassfilled housing Temperature Range: 5