High-Pressure Injection Pump

Eldex Optos Series incorporates knowledge gained from over 40 years of experience in designing and manufacturing reciprocating piston pumps for a wide variety of applications while integrating the latest technology and electronics. Eldex Optos can apply in:

  • HPLC
  • Reactant/chemical feed
  • Column washing
  • Pilot plant
  • Post column reaction
  • Flow injection analysis
high pressure injection pump
high pressure injection pump
high pressure injection pump
high pressure injection pump

High-Pressure Injection Pump Advantages

1. Precise Metering

A high-pressure Liquid Metering Pump can use for precise flow rate control, particularly at high pressures.

2. Wide Flow Ranges

Three pump models to meet your specific requirements.

3. Reciprocating Piston Design

All metering pumps are based on a positive displacement, reciprocating piston design, which gives you precise flow control.  Various models cover flow rates from 0.002 to 80 mL/min.

4. Versatile, Easy to Use

The pump provides a simple interface for ease of control over flow rates, refill rates, compressibility compensation, and other pump parameters.

5. Convenient Control Options

The pump can be controlled from either the local LCD display and membrane keypad, or remotely, using either RS232 commands or analog controls (either 0-5VDC or 4-20mA).

6. Corrosion Resistance

The materials in the liquid end of pumps are carefully chosen for corrosion resistance.  The piston is sapphire, and the inlet and outlet valves incorporate sapphire seats and ruby balls.

7. Non-Metallic

Metering pumps can be made with PEEK liquid end assemblies, as opposed to the usual type 316 stainless steel, eliminating all metal contact in the flow path.

8. Piston Wash

The use of buffers or solutions which crystallize when exposed to air can lead to abrasion of the piston seal. A fully integrated piston wash system is included in the pumps, dramatically extending piston seal life.

9. Simple, Robust Construction

The pump, only four inches wide, occupies very little bench space.  The design is simplified for optimal reliability.  With our extensive experience in reciprocating pump technology, no effort has been spared to make the most durable pump available.

10. After-sale Services

GALAK provides after-sale services, like training, repairing, part replacement.

High-Pressure Injection Pump Model Selection

Model 1

316 stainless steelFlow RateMax. PressurePiston DiameterPiston StrokeModel
0.002 - 2.5 mL/min6000 psi3/32 in..125 in.1LM
0.003 - 5 mL/min6000 psi1/8 in..125 in.1SM
0.01 - 20 mL/min3000 psi1/4 in..125 in.1HM
PEEKFlow Rate Max. PressurePiston DiameterPiston StrokeModel
0.002 - 2.5 mL/min4000 psi3/32 in..125 in.1LI
0.003 - 5 mL/min4000 psi1/8 in..125 in.1SI
0.01 - 20 mL/min3000 psi1/4 in..125 in.1HI

Model 2

316 stainless steelFlow Rate Max. PressurePiston DiameterPiston StrokeModel
0.003 - 5 mL/min6000 psi3/32 in..250 in.2LM
0.01 - 10 mL/min6000 psi1/8 in..250 in.2SM
0.02 - 40 mL/min1500 psi1/4 in..250 in.2HM
PEEKFlow Rate Max. PressurePiston DiameterPiston StrokeModel
0.003 - 5 mL/min4000 psi3/32 in..250 in.2LI
0.01 - 10 mL/min4000 psi1/8 in..250 in.2SI
0.02 - 40 mL/min1500 psi1/4 in..250 in.2HI

Model 3

316 stainless steelFlow RateMax. Pressure (psi)Piston DiameterPiston StrokeModel
0.01 - 10 mL/min3000 psi3/32 in..500 in.3LM
0.01 - 20 mL/min1500 psi1/8 in..500 in.3SM
0.04 - 80 mL/min750 psi1/4 in..500 in.3HM
PEEKFlow RateMax. PressurePiston DiameterPiston StrokeModel
0.01 - 10 mL/min3000 psi3/32 in..500 in.3LI
0.01 - 20 mL/min1500 psi1/8 in..500 in.3SI
0.04 - 80 mL/min750 psi1/4 in..500 in.3HI

Replacement Parts

Stainless Steel Valves
P/NDescription
1369Inlet valve assembly, cartridge style.
1372Outlet valve assembly, cartridge style.
1373Inlet valve assembly, cartridge style, for use with 1/8" compression fittings.
1374Outlet valve assembly, cartridge style, for use with 1/8" compression fittings.
1371Inlet valve assembly, cartridge style, "high-pressure."
1370Outlet valve assembly, cartridge style, "low-pressure."
1381Valve cartridge.
CTFE Valves
P/NDescription
1375CTFE inlet valve assembly, cartridge style.
1376CTFE outlet valve assembly, cartridge style.
1382CTFE valve cartridge.
PEEK Valves
P/NDescription
1377PEEK inlet valve assembly, cartridge style.
1378PEEK outlet valve assembly, cartridge style; conical bottom
1380PEEK outlet valve assembly, cartridge style; flat bottom
1383PEEK valve cartridge.
10K psi Valves
P/NDescription
1421Inlet valve assembly, cartridge style, for use in 10K psi pumps
1422Outlet valve assembly, cartridge style, for use in 10K psi pumps
1424Valve cartridge, 10K
Hastelloy C Valves
P/NDescription
6045Inlet valve assembly, cartridge style, 1/8” compression fitting.
6046Outlet valve assembly, cartridge style, 1/8” compression fitting.
6047Valve cartridge

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