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 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 steel | Flow Rate | Max. Pressure | Piston Diameter | Piston Stroke | Model |
| 0.002 - 2.5 mL/min | 6000 psi | 3/32 in. | .125 in. | 1LM | |
| 0.003 - 5 mL/min | 6000 psi | 1/8 in. | .125 in. | 1SM | |
| 0.01 - 20 mL/min | 3000 psi | 1/4 in. | .125 in. | 1HM | |
| PEEK | Flow Rate | Max. Pressure | Piston Diameter | Piston Stroke | Model |
| 0.002 - 2.5 mL/min | 4000 psi | 3/32 in. | .125 in. | 1LI | |
| 0.003 - 5 mL/min | 4000 psi | 1/8 in. | .125 in. | 1SI | |
| 0.01 - 20 mL/min | 3000 psi | 1/4 in. | .125 in. | 1HI |
Model 2
| 316 stainless steel | Flow Rate | Max. Pressure | Piston Diameter | Piston Stroke | Model |
| 0.003 - 5 mL/min | 6000 psi | 3/32 in. | .250 in. | 2LM | |
| 0.01 - 10 mL/min | 6000 psi | 1/8 in. | .250 in. | 2SM | |
| 0.02 - 40 mL/min | 1500 psi | 1/4 in. | .250 in. | 2HM | |
| PEEK | Flow Rate | Max. Pressure | Piston Diameter | Piston Stroke | Model |
| 0.003 - 5 mL/min | 4000 psi | 3/32 in. | .250 in. | 2LI | |
| 0.01 - 10 mL/min | 4000 psi | 1/8 in. | .250 in. | 2SI | |
| 0.02 - 40 mL/min | 1500 psi | 1/4 in. | .250 in. | 2HI |
Model 3
| 316 stainless steel | Flow Rate | Max. Pressure (psi) | Piston Diameter | Piston Stroke | Model |
| 0.01 - 10 mL/min | 3000 psi | 3/32 in. | .500 in. | 3LM | |
| 0.01 - 20 mL/min | 1500 psi | 1/8 in. | .500 in. | 3SM | |
| 0.04 - 80 mL/min | 750 psi | 1/4 in. | .500 in. | 3HM | |
| PEEK | Flow Rate | Max. Pressure | Piston Diameter | Piston Stroke | Model |
| 0.01 - 10 mL/min | 3000 psi | 3/32 in. | .500 in. | 3LI | |
| 0.01 - 20 mL/min | 1500 psi | 1/8 in. | .500 in. | 3SI | |
| 0.04 - 80 mL/min | 750 psi | 1/4 in. | .500 in. | 3HI |
Replacement Parts
| Stainless Steel Valves | |
| P/N | Description |
| 1369 | Inlet valve assembly, cartridge style. |
| 1372 | Outlet valve assembly, cartridge style. |
| 1373 | Inlet valve assembly, cartridge style, for use with 1/8" compression fittings. |
| 1374 | Outlet valve assembly, cartridge style, for use with 1/8" compression fittings. |
| 1371 | Inlet valve assembly, cartridge style, "high-pressure." |
| 1370 | Outlet valve assembly, cartridge style, "low-pressure." |
| 1381 | Valve cartridge. |
| CTFE Valves | |
| P/N | Description |
| 1375 | CTFE inlet valve assembly, cartridge style. |
| 1376 | CTFE outlet valve assembly, cartridge style. |
| 1382 | CTFE valve cartridge. |
| PEEK Valves | |
| P/N | Description |
| 1377 | PEEK inlet valve assembly, cartridge style. |
| 1378 | PEEK outlet valve assembly, cartridge style; conical bottom |
| 1380 | PEEK outlet valve assembly, cartridge style; flat bottom |
| 1383 | PEEK valve cartridge. |
| 10K psi Valves | |
| P/N | Description |
| 1421 | Inlet valve assembly, cartridge style, for use in 10K psi pumps |
| 1422 | Outlet valve assembly, cartridge style, for use in 10K psi pumps |
| 1424 | Valve cartridge, 10K |
| Hastelloy C Valves | |
| P/N | Description |
| 6045 | Inlet valve assembly, cartridge style, 1/8” compression fitting. |
| 6046 | Outlet valve assembly, cartridge style, 1/8” compression fitting. |
| 6047 | Valve cartridge |
