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Both column ends selected –
ST configuration

Multiposition valves – high pressure
UW Type

ST valves are used for multi-column, multi-sample, or multi-trap operations. This valve can be used between an injector and detector to permit manual or automated HPLC column selection. See application suggestion.

Specifications / Product numbers

A complete valve product number includes information about the specific valve, actuator, and mounting hardware. Locate the valve with desired specifications in the chart below and select it to continue to the next step in arriving at the correct product number.
Jump to the valve selection chart.

Actuation

Valves can be automated with pneumatic or electric actuators. Manual actuation is not available. Read more about actuators.

HPLC valves rarely require a standoff. Contact the factory if you need one.

Sample loops

Sample loops are available in a variety of sizes and materials.

Options

Consult the factory for product number and pricing for the following options:

Standard valve body material is Nitronic 60 stainless steel. Other materials are available: Hastelloy C, Inconel 600, Monel 400, Nickel 200, Nitronic 50, titanium, and zirconium.
Low pressure, high temperature versions available.

Valve selection chart

For specific product numbers, select a valve specification below.

Fittings	Port size	Specs	No. of Positions
1/16"	0.40 mm (.016")	5000 psi liq 75°C max Nitronic 60 valve body Valcon E rotor	4 columns or loops 6 columns or loops	Select

Further reference

Multiposition valve applications
Flowpath configurations
   SD low pressure
   SD high pressure
   SC
   SF
   ST low pressure
   ST high pressure
   STF
About multiposition valves