You searched for: Valves

Supplier: OMNIFIT

Valves are constructed from PTFE with a PCTFE rotor and have a 1,5 mm bore size. They accept tubing sizes between 0,5 and 4 mm Ext.Ø. and are pressure rated to 50 psi.

Supplier: Restek

Sulfinert® treated gas sample loops are ideal for samples containing low concentrations of sulphur and other active compounds.

Supplier: Restek

These shut-off plug valves work well in any application which requiring throttling or on/off operations.

Supplier: SEMADENI

½” universal valve made from PP, resistant to acids, alkalis and solvents.

Supplier: Restek

Ball valves have a floating ball to assist sealing and to reduce operating torque, and dual seats to provide leak-tight bidirectional sealing. They are rated to 1500 psig at 21 °C and have a maximum temperature of about 177 °C.

Supplier: VICI JOUR RESEARCH

These micro valves for LC and GC has a unique design of the fitting detail which allows a leak-free seal with no potential for rotor damage from overtightening.

Supplier: SEMADENI

Three way ball valve with PP body and PTFE tips with total length of 65 mm.

Supplier: Restek

Valves for ASE® 100/200/300 systems.

Supplier: SEMADENI

These non return valves are made from PP.

Supplier: Restek

These valves and tees are made from stainless steel or are Sulfinert®-treated.

Supplier: Restek

These valves have low internal volumes and are rated to 15000 psi. They feature a two-piece stem assembly in which the rotating upper shank is coupled through a ball joint to a static lower stem.

Supplier: Restek

Outlet check valve, ceramic ball and seat, includes cartridge and housing

Supplier: Restek

Replacement parts for Shimadzu HPLC systems.

Supplier: Restek

These metering gas valves reduce pressure between sample cylinder and GC injector.

Supplier: Restek

These shut-off toggle gas valves are ideal for applications in which instant on/off gas control is necessary.

Supplier: UPCHURCH SCIENTIFIC

These standard inline check valves are made from gold plated stainless steel.

Supplier: Restek

Mininert® valves are very convenient for repetitive sampling and limit content exposure to the silicon septum. The crimp-top valve for 20 mm ID glassware slides into the neck of the vial.

Supplier: UPCHURCH SCIENTIFIC

Inline cartridge check valves are designed to limit flow in one direction and deliver a low cracking pressure. Ideal placement for these valves would be on the effluent side of the column to prevent post-column derivatisation agents from flowing back and poisoning the column if the HPLC mobile phase pump were to shut down.

Supplier: OMNIFIT

The high pressure manual rotary valves are made from PTFE with a PCTFE rotor with a bore size of 0,8 mm making them ideal for pressure applications up to 500 psi. They are available in four and five port versions. All ports are 1/4"-28 UNF flat-bottom and will accept any 1/4"-28 UNF male fitting. These valves are mountable using the pre-drilled M3 mounting holes.

Supplier: QVF LABORTECHNIK

Air valve anti-return, cone size 14/23 NS, with sidearm, Borosilicate glass 3.3

Supplier: Lenz Laborglas GmbH & CO.KG

DURAN®, borosilicate glass, clear. Prevent pressure loss or backflow. Simple design, cannot be dismantled.

Supplier: UPCHURCH SCIENTIFIC

Upchurch Scientific®, V-100L right angle flow-switching valve, 1/16" OD tubing, 1,0 mm thru-hole, 6,2 µl swept volume

Supplier: UPCHURCH SCIENTIFIC

Designed to accurately split and control the low flow stream of a single incoming supply.

Supplier: UPCHURCH SCIENTIFIC

The 6-port medium pressure injection valves feature easy, external sample loop customisation. Simply clean-cut a piece of tubing that represents the volume of sample you wish to inject, taking into account the port-to-port volume of the valve.

Supplier: UPCHURCH SCIENTIFIC

For fine control of fluid flow rates, these valves can reduce outgoing flow. These needle valves are perfect for use with peristaltic pump fluid transfer applications, mass spectrometry and fraction collection. They can also be used to regulate gas flow in helium sparging lines and as a flow-dependent variable back pressure regulator.

Supplier: UPCHURCH SCIENTIFIC

The Quick-Stop Luer check valve assembly is specifically designed to provide inline Luer connect/disconnect convenience while avoiding spills. It is made from biocompatible PEEK with gold-plated stainless steel spring.

Supplier: UPCHURCH SCIENTIFIC

Pressure relief valves are ideal for preventing system over-pressurisation. These products protect system components by diverting fluid flow automatically when inline pressure exceeds the set limit.

Supplier: UPCHURCH SCIENTIFIC

Stop a flow stream quickly with these shut-off valves. The bodies are manufactured from either PEEK or ETFE. Both versions feature a PCTFE rotor, making them highly resistant to chemicals. The blue colorant used in some valve configurations has proven not to leach out with common HPLC solvents.

Supplier: UPCHURCH SCIENTIFIC

These biocompatible PEEK and perfluoroelastomer inline check valves are designed for applications where low flow path volume is critical, such as delivery to lab-on-a-chip, single-cell analysis and micro- or nano-LC post-column derivatisation.

Supplier: Merck

The Rheodyne Model 7725 injector allows you to inject 1 μl to 5 ml samples with accuracy and precision.