New Valve Configurations for Sample Stream Selection Valves  

There are now 3 configurations for the NeSSI sample stream selection valves: On/Off, Sample By-Pass and Double Block and Bleed.

The On/Off version of the NeSSI sample stream selection valves from Analytical Flow Products (Canada) is available with a pneumatic or an electronic actuation. The other configurations are only available with the electronic actuation, independently controlling each valve port. Furthermore, all valves are available as single blocks, for more flexibility, or as multiple stream blocks for a more compact configuration.

These valves are diaphragm based working up to 1500 psig, with optional purge channels. Valves could be controlled through a RS-485 serial link, or with standard digital lines. These valves consume power only during actuation. When at their final position, no power is consumed, so no heat generation.