Backventiler

Våra backventiler skyddar slangar och vakuumsystem från återflöde när trycket i systemet sjunker. Tätningssystemet eliminerar återflöde och hjälper till att förhindra kontaminering eller skador uppströms. Dessa ventiler är kompatibla med ett brett utbud av system och har olika specifika nivåer för hantering av de tre huvudsakliga tryckvärdena: öppningstryck, maximalt tryck och det skapade mottrycket. Hållbart stål eller plast används i alla konstruktioner, vilket ger en kvalitetsprodukt som förblir tillförlitlig i många år utan behov av utbyte.

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Avantor® Hichrom PEEKsil™, Back Pressure Regulator

Supplier: Avantor

Avantor® Hichrom, Back pressure regulator, Tryck: 5,17 bar

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Micro control valves

Supplier: Trajan Scientific and Medical

Micro control valves provide precision metering and on-off control of gas flows. They are designed specifically for chromatography applications and used at elevated temperatures from high vacuum to medium pressure.

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Non return valves, BOLA

Supplier: Bohlender

These non return valves are made from PTFE, with nuts made from glass fibre reinforced PTFE for connecting tubing or tubes.

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Thermostatic mixing valve for eye showers

Supplier: BROEN-LAB

Thermostatic mixing valve for eye showers designed for delivering tepid water (20 to 25 °C).

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Vacuum check valve and positive connector, Nalgene®

Supplier: Thermo Fisher Scientific

These vacuum check valves with positive connector are designed to prevent back pressure with aspirator-type vacuum pumps.

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Backventil

Supplier: KARTELL

PP, genomskinlig. Förhindrar tryckförlust och återflöde. Högsta arbetstryck 2 bar och lägsta arbetstryck 0,07 bar vid rumstemperatur (20 °C).

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Non-return valve

Supplier: Brand

HDPE, transparent. Prevents backflow. With FKM valve disc not suitable for pressure applications.

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Non return valves

Supplier: VITLAB

These non return valves are made from HDPE.

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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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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 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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Air valve anti-return

Supplier: QVF LABORTECHNIK

Air valve anti-return, cone size 19/26 NS, with sidearm, Borosilikatglas 3,3

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Mottrycksregulator

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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Non-return valve

Supplier: Lenz Laborglas

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

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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.