Positive Shut-Off (PSO Valve) Calibrated Leaks for All Gases
Calibrated Leaks using VTI's proprietary Positive Shut-Off Valve feature instant on and off operation and virtually no dead volume (0.0001cc). These unique VTI products minimize the gas depletion rate, important for high leak rates and expensive gases. Also, they permit essentially no gas burst into sensitive systems upon opening the valve and are thus widely used in leak testing and gas analysis systems. Designs are available with or without reservoirs, and with manual, pneumatic, or solenoid valve operation (PSOM, PSOA, and PSOS Models).
