DUAL VALVE SUCK BACK combines a Normally closed Pneumatic Diaphragm valve and a Adjustable Suck back valve in a compact package.
This creates a slight vacuum downstream when actuation pressure is removed to eliminate dripping after the dispense cycle.
With an all PTFE wetted flow path, this Dual suck back valve is ideal for photoresist, acid, solvent and other high purity dispensing applications where precision and repeatability are critical
Suck back range is from 0 to .30 CC (at ambient temp and 1.0 SG)
Media viscosity Range 0,80 to 3500 CPS (at ambient temp)