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151 results for Valves

You searched for: Valves

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.

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Back Check Valves

Supplier: BD Medical

DEHP or natural rubber latex are not part of the material formulation.

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Manual, solenoid and motor valves

Manual, solenoid and motor valves

Supplier: Cytiva

Range of manual and automated valves to meet a variety of performance requirements. They are designed for biocompatibility and years of reliable service, each may be inserted into the flow path without causing unnecessary mixing or sample dilution.

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Non return valves

Non return valves

Supplier: BURKLE

Translucent PP retaining valves with embossed directional arrow or printed in black. With tapered ends. Various uses.

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Non-return valves, SP Bel-Art

Non-return valves, SP Bel-Art

Supplier: Bel-Art Products, a Part of SP

PP valve, translucent with neoprene valve disk. Stops reverse flow of liquid when pressure is interrupted.

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Replacement kits for Socorex® syringe

Replacement kits for Socorex® syringe

Supplier: Socorex Isba

Replacement kits for the valve assembly are supplied in a dedicated bag with each Socorex® self-refilling syringe.

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Non return valve, PP

Non return valve, PP

Supplier: BURKLE

Valve made of PP and POM, seal made of EPDM, springs made of stainless steel 1.4401.

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Valves and loops

Supplier: AGILENT HEWLETT PACKARD

Replacement valve WE series, 10-port, 400 psi, 225 °C

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Needle valve for burettes, lateral, with plug

Needle valve for burettes, lateral, with plug

Supplier: witeg Labortechnik

Needle valve for burettes, lateral with PTFE plug, 0 - 2,5 mm bore

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Pressure relief valves

Supplier: VARIAN

Valves made from stainless steel are two-position with six-port. It is manually operated with three-way switching.

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Spare needle valve

Spare needle valve

Supplier: witeg Labortechnik

Spare needle valve, PTFE, red for high vacuum stopcocks WITAFLO, 3 mm hole

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Sigma-Aldrich® HPLC injector, Rheodyne 7725/7725i

Supplier: Merck

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

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Micro valves for LC and GC

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.

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Ball Valve for Storage Bottles

Ball Valve for Storage Bottles

Supplier: SEMADENI

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

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Non return valves

Non return valves

Supplier: SEMADENI

These non return valves are made from PP.

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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-splitter valves, Upchurch Scientific®

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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Inline check valves, standard 1/4-28, Upchurch Scientific®

Inline check valves, standard 1/4-28, Upchurch Scientific®

Supplier: UPCHURCH SCIENTIFIC

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

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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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Inline cartridge check valves, Upchurch Scientific®

Inline cartridge check valves, Upchurch Scientific®

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.

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Air valve anti-return

Air valve anti-return

Supplier: QVF LABORTECHNIK

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

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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 valve

Non-return valve

Supplier: LENZ LABORGLAS

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

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Pressure relief valves, Upchurch Scientific®

Pressure relief valves, Upchurch Scientific®

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.

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Medium pressure 4-port switching valves, Upchurch Scientific®

Medium pressure 4-port switching valves, Upchurch Scientific®

Supplier: UPCHURCH SCIENTIFIC

Upchurch Scientific®, V-101T 3-way flow-switching valve, bulkhead version, 1/16" OD tubing, 1,0 mm thru-hole, 9,7 µl swept volume

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Micro-metering valves, Upchurch Scientific®

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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Shut-off valves, Upchurch Scientific®

Shut-off valves, Upchurch Scientific®

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.

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Non return valves, Azlon®

Non return valves, Azlon®

Supplier: DWK LIFE SCIENCES

Designed for use in vacuum lines and fluid handling systems.

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Inline check valves, non-metallic ¹/₄-28 and 10-32, Upchurch Scientific®

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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Back pressure regulator

Supplier: VICI JOUR RESEARCH

This regulator installs on the detector drain line and prevents bubble formation in the flow cell during outgassing. It has an adjustable back pressure from 0 to 20 bar (15 to 300 psi) without disconnecting from the system. Other sizes available.

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Ultra-low volume back pressure regulators (BPR), Upchurch Scientific®

Ultra-low volume back pressure regulators (BPR), Upchurch Scientific®

Supplier: UPCHURCH SCIENTIFIC

These ultra-low volume back pressure regulators (BPRs) are developed to minimise swept volume, which is especially important for multi-detector applications.

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