Valves
A variety of valves that can, depending on the product, be used to regulate pressure levels of liquid and gas in flow systems. These valves can be used for making connections between different lengths of tubing and connection points. Liquid and vacuum seals. A plethora of scenarios exist in which these valves can be used, each with a unique purpose and design for maximum safety and efficiency when in use, especially when pressure is of great concern.
Ball valves
Supplier: SEMADENI
Three way ball valve with PP body and PTFE tips with total length of 65 mm.
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Micro-metering valves, Upchurch Scientific®
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.
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Inline check valves, quick-stop luer, Upchurch Scientific®
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.
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Micro-splitter valves, Upchurch Scientific®
Supplier: UPCHURCH SCIENTIFIC
Designed to accurately split and control the low flow stream of a single incoming supply.
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Back pressure regulators, Upchurch Scientific®
Supplier: UPCHURCH SCIENTIFIC
Back pressure regulator assemblies are designed to create incremental back pressures ranging from 5 to 1000 psi (0,3 to 69 bar). These biocompatible and stainless steel back pressure regulator assemblies are available complete with a replaceable, factory pre-set cartridge (except the 5 and 20 psi (0,3 to 1,4 bar versions).
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Inline check valves, non-metallic ¹/₄-28 and 10-32, Upchurch Scientific®
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.
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Rotary valves, high pressure
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.
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Medium pressure injection valves, Upchurch Scientific®
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.
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Non return valves, Azlon®
Supplier: SciLabware
Designed for use in vacuum lines and fluid handling systems.