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.

There are two types for your choice, Regular-type and Plus-type. Plus-type is fitted with a pulse damper that can set the high-pressure limit and the low-pressure limit.

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.

Eldex Injection Pump

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

Plus: Minimize Pulsation, Monitor Pressure

Add Plus to your Optos Series pump to integrate a pulse damper to further reduce pulsation, and have the ability to monitor pressure and set high and low pressure limits. Plus is available on L and S piston pumps.

Model 1 plus

316 stainless steel	*Flow Rate (mL/min)**	Max. Pressure (psi)	Piston Diameter (in.)	Piston Stroke (in.)	Model
	0.002 - 2.5	6000	3/32	.125	1LMP
	0.003 - 5	6000	1/8	.125	1SMP
PEEK	*Flow Rate (mL/min)**	Max. Pressure (psi)	Piston Diameter (in.)	Piston Stroke (in.)	Model
	0.002 - 2.5	4000	3/32	.125	1LIP
	0.003 - 5	4000	1/8	.125	1SIP

Model 2 plus

316 stainless steel	*Flow Rate (mL/min)**	Max. Pressure (psi)	Piston Diameter (in.)	Piston Stroke (in.)	Model
	0.003 - 5	6000	3/32	.250	2LMP
	0.01 - 10	6000	1/8	.250	2SMP
PEEK	*Flow Rate (mL/min)**	Max. Pressure (psi)	Piston Diameter (in.)	Piston Stroke (in.)	Model
	0.003 - 5	4000	3/32	.250	2LIP
	0.01 - 10	4000	1/8	.250	2SIP

*Maximum flow rate specifications are based on theoretical volume displacement; actual flow rates will vary depending on such factors as fluid viscosity, compressibility and temperature.

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