BioLogic DuoFlow Valves

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Overview

The high-pressure sample injection and stream-select valves, AVR7-3 and AVR9-8, use the patented make-before-break design that prevents pressure spikes when the valve rotates from one port to another.
Read full description Ordering Information

Description

Description

The high-pressure sample injection and stream-select valves, AVR7-3 and AVR9-8, use the patented make-before-break (MBB) design that prevents pressure spikes when the valve rotates from one port to another, which eliminates baseline interference. This feature is beneficial when using fragile low-pressure columns or flow-sensitive detectors, and prevents pump shutdowns due to transient overpressure conditions. Automated valves enhance system flexibility and convenience. Methods can include automated injection, buffer selection, column switching, and large-volume fraction collection.

BioLogic DuoFlow valves may be used alone or in combinations, depending on the application:

AVR7-3 Valve

  • Automation of single sample injections using single-injection loops (from 25 µl to 5 ml)
  • Reverse-flow chromatography for affinity purifications
  • Two-column switching
  • Sequential binding and elution

AVR9-8 Valve

  • Multiple buffer selection
  • Eight-column switching
  • Large-volume fraction collection
  • Tandem chromatography

SV5-4 Select Valve

  • Automation of large-sample loading
  • Buffer selection in chromatography protocols

SVT3-2 Diverter Valve

  • Buffer selection
  • Loading of large samples
  • Diverting buffer flow

Ordering

Ordering

items

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7600401
Kit for rebuilding the AVR7-3 automated sample injection valve (#760-0406)
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7600403
Kit for rebuilding the AVR9-8 stream-select valve (#760-0408)
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7600411
Kit for rebuilding the SVT3-2 diverter valve (#760-0410)
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7600408
Pkg of 1, high-pressure valve, 9-port, 8-position, 3,500 psi (233 bar) limit, for use with BioLogic DuoFlow system
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7600410
Pkg of 1, solenoid valve, 3-port, 2-position, 30 psi (2 bar) limit, for use with BioLogic DuoFlow system
750-0415_tn.jpg
(Discontinued) SV5-4 Select Valve
7500415
Pkg of 1, 5-port, 4-position solenoid valve, 30 psi (2 bar) limit
760-0406_tn.jpg
7600406
Pkg of 1, high-pressure sample inject valve, 9-port, 8-position, 3,500 psi (233 bar) limit, for use with BioLogic DuoFlow system

Accessories

Accessories

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7500471
Pkg of 1, sample injection port, for use with AVR7-3 automated sample inject valve (#760-0406)
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(Discontinued) Injection Needle
1250224
Pkg of 1, 22-gauge, injection needle, blunt, for use with BioLogic DuoFlow system
750-0490_tn.jpg
7500490
Pkg of 1, sample loop kit, includes 100, 250, and 500 μl PEEK loops
750-0491_tn.jpg
7500491
Pkg of 1, sample loop kit, includes 1, 2, and 5 ml PEEK loops
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(Discontinued) DynaLoop 25 Kit
7500451
Sliding-piston sample loop kit, includes 25 ml DynaLoop sliding piston loop, DynaLoop parts kit (#750-0450)
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(Discontinued) DynaLoop 90 Kit
7500452
Sliding-piston sample loop kit, includes 90 ml DynaLoop sliding piston loop, DynaLoop parts kit (#750-0450)

Documents

Documents

Number Description Options
4106040
Instruction Manual, V9-8 Manual, and AV9-8 Automated Stream Select Valves, Rev C
2815
BioLogic DuoFlow™ Valves Brochure, Rev C
2584
BioLogic DuoFlow™ Valving Guide, Rev E
4106056
Instruction Manual, SV5-4 Select Valve, BioLogic™ HR, BioLogic Duo-Flow™, Rev D
4106052
Instruction Manual, SV3-2 Diverter Valve, Rev C