Entech Instruments - HDS MicroValve Samplers

Introducing Entech’s low-cost external HDS™ Samplers that allow any Silonite® Canister or Bottle-Vac™ to be used to perform time integrated sampling both simply and cost-effectively. HDS™ utilizes a simple diffusion zone to control the exchange rate of helium and air, with diameters that are 20–50 times larger than typical critical orifice samplers.