Hard Seat Micro-Dispense Valve Handles Aggressive Fluids

A new Hard Seat VHS Micro-Dispense Valve which offers precise, repeatable, non-contact dispensing of fluids in the nanolitre to microlitre range, is a recent addition to Lee Products established range of VHS solenoid valves.

This option features a precision Zirconia ball and seat instead of a traditional elastomeric seal which ensures resistance to aggressive fluids such as DMSO (Dimethyl Sulfoxide). These, and other ‘aggressive fluids’, would normally attack the ‘standard’ elastomer type materials used in other types of less durable micro-dispense valves.

The Hard Seat VHS valve’s small size and weight (45.2mm max length, 5.6mm diameter and 10 grams) means it can be fitted directly over 96 well plates. The valve is designed for 2-way, normally closed operation and the wetted materials comprise stainless steel, PEEK and Zirconia.

The valves feature a number of port configurations to facilitate quick and convenient connections to Lee’s 062 MINSTAC fittings and press-on tubing. The 062 MINSTAC outlet can be used with Lee 062 MINSTAC tubing or atomising nozzles. Custom configurations and voltages are also available to suit specific applications.