The ES series features large cross-sectional O-rings, minimal leak points and proven poppet designs. All mounting hardware is outside of the flow path for the ES, and no internal parts are threaded during assembly to reduce the possibility of contamination.
The ES series features a compact footprint and exceptional leak resistance. Other features include a use life of more than 1 billion cycles, a 0.01 atm sccm leak rate, no anaerobic sealant and multiple low flow ranges.