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Agilent 1100 HPLC G1311A Quat Pump
Agilent 1100 HPLC G1311A Quat Pump
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Our Price: $5,510.00
Sale Price: $4,840.00
Money Saved: $670.00

Condition: Fully Recertified and Tested to Perform at Manufacturer Specifications
Warranty: 180-Day Full Parts and Labor (Click for Info)
Typically Ships Within: 2 to 4 Business Days

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Included Documentation: Leak and Pressure Diagnostic Report

Quantity in Stock:1
Product Code: AG-QUAT

Recertification Protocol
Technical Specification Sheet (NEW)

Agilent 1100 HPLC G1311A Quat Pump

The Agilent 1100 G1311A Quaternary Pump ensures virtually pulse-free and stable solvent flow, with dual floating pistons in series, precisely servo-controlled. This design with variable stroke volume allows pulse-free solvent delivery and efficient mixing. An inlet-valve electronically activated and synchronized to piston stroke eliminates vapor formation with volatile solvents and is maintenance free. The Agilent quaternary pump is equipped with a high-speed proportioning valve.

All of our equipment is fully tested to perform at factory specifications before being shipped.

The Agilent 1100 HPLC G1311A Quat Pump includes:
  • > Firmware version A.06.54 (Can be changed upon request)
  • > Leak and Pressure Diagnostic Report
  • > Lan Cable / Power Cord
  • > Front Cover
  • > Operator's Manual
  • > Full 180 Day Parts and Labor Warranty

Agilent 1100 HPLC G1311A Quat Pump Specifications

Setable Flow Range

0.001 – 10 ml/min, in 0.001 ml/min increments

Flow Range

0.2 – 10.0 ml/min

Flow Precision

< 0.3% RSD (usually 0.15%), based on retention time, at 1 ml/min


Operating range 0 – 40 MPa (0 – 400 bar, 0 – 5880 psi) up to 5 ml/min

Operating range 0 – 20 MPa (0 – 200 bar, 0 – 2950 psi) up to 10 ml/min

Pressure Pulsation

< 2% amplitude (typically < 1%), at 1 ml/min isopropanol, at all pressures > 1 MPa (10 bar)

Recommended pH Range

1.0 – 12.5, solvents with pH > 2.3 should not contain acids which attack stainless steel

Gradient Formation

Low pressure quaternary mixing/gradient capability using proprietary high-speed proportioning valve

Delay volume 800 – 1100 µl, dependent on back pressure

Composition Range

0 – 95% or 5 – 100%, user selectable

Composition Precision

< 0.2% SD, at 0.2 and 1 ml/min

Dimensions (H x W x D)

5.5 x 13.5 x 17 in

Electrical Requirements

100-120 or 22-240 VAC, 50/60 Hz, 220 VA

Agilent G1311A Operator's Manual

Click Here to View all the Technical Specs for the G1311A Quat Pump

Why Buy From Marshall Scientific?

Every product we offer undergoes a rigorous inspection process to verify that all manufacturer specifications are met. All of the electronics and boards are tested for proper function, and any necessary preventative maintenance is performed alongside repairs by our industry trained technicians. Our primary goal is to offer products that are as close to new as possible at an affordable price.

All Lab Equipment is Fully Recertified and Tested

Most Pieces Ship within 2 to 5 Business Days

All Products Come with a Standard Warranty

Trained Customer and Technical Support

Industry Leading Overall Customer Satisfaction

Marshall Scientific's Recertification Protocol


Our technicians decontaminate and clean all equipment upon arrival and upon purchase to create a neutral environment for lab use.

Preliminary testing is conducted to identify potential product defects, upon completion, we replace all faulty and/or under-performing parts with original manufacturer parts that perform up to specification.

Any parts known to fail or malfunction from excessive use are removed and replaced to insure the extended lifetime of your equipment.

Any necessary preventative maintenance is performed alongside repairs, so your purchase will be ready to go as soon as it arrives.

All electronics and boards are tested for proper function and response by our industry trained technicians. Any electronic deficiencies detected are immediately repaired.

Final testing cycles ensure your instrument performs fully at manufacturer specifications, guaranteeing you receive a properly working product ready for use.

Once we finish our rigorous testing and decontamination procedures, your order will be packaged to best protect it during shipment and will include delivery insurance.

Stanford University
We love shopping at Marshall Scientific! Great products, prices, and performance. Marshall Scientific provides 'tried and true' equipment at a fraction of original purchase price. I always shop here first!
Meg W. / Stanford University
Easy to find what you need with clear specs, website ordering was simple, equipment arrived quickly, very well packaged and working as expected! I couldn't ask for more, I'll definitely use them again!
A. Bradley / Honeywell
University of Maryland
They do a very high quality job worth every penny they charge. Customer service is fantastic, they can always be reached by phone or email, and the staff are very knowledgeable and ready to help.
Igor P. / University of Maryland
Click Here to View Our Other Testimonials

Average Rating: Average Rating: 4.5 of 5 4.5 of 5 Total Reviews: 2 Write a review »

  8 of 9 people found the following review helpful:
4 of 5 Quality Products December 12, 2020
Reviewer: Susan Black from Tulsa, OK  
Really appreciative of Marshall Scientific’s attention to detail. They were with me every step of the way throughout my order with updates on the product, shipping, and arrival timeline.

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  5 of 5 people found the following review helpful:
5 of 5 High Quality August 23, 2020
Reviewer: Fred Barker from Denver, CO  
Have used Agilent 1100 HPLC G1311A Quat Pump in the past without issue. After many years G1311A Quat Pump was ready for replacing and this refurbished option was a great choice. It shipped quickly, arrived early, and was in great condition. Will definitely be back.

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