1SM - Optos Metering Pump, 0.003-5mL/min, SS, 1/8"

Optos precision, high pressure metering pump model 1SM, Material of construction 316SS

Flow Rate* (mL/min): 0.003 – 5

Max. Pressure (psi): 6000

Piston Diameter (in.): 1/8

Piston Stroke (in.): .125

Wetted Parts: type 316 stainless steel, sapphire, ruby, graphite fiber reinforced PTFE, CTFE.

Reproducibility: typically +/-0.3%

Viscosity Limit: 500 centipoise

Tubing Connections:

• Inlet valves: 1/4″-28 low pressure plastic fitting for use with 1/8″ plastic tubing (fitting and 60cm of tubing provided with pump).
• Outlet valves: 10-32 tube nut, ferrule for use with 1/16″ tubing (tube nut and ferrule provided with pump).
• Valves with special fittings available on request.

Remote Control Options:

• Voltage: 0-5VDC
• Current Loop: 4-20 mA
• RS232

Dimensions (DxWxH): 28 x 10 x 23.5 cm (11 x 4 x 9.25 in.)

Weight: 5.3 kg (11.75 lbs.)

Electrical:

• Voltage/Frequency: 100-230VAC (?10%); 50/60Hz
• VA rating: 80
• Fuse: 0.8 A

What Makes Optos Series Different

The Optos Series is purpose-built for applications where accuracy, consistency, and flow stability matter most. 

Key advantages include:

• High-precision piston metering for smooth, low-pulse flow
• Excellent repeatability and flow stability across operating conditions
• Broad flow-rate and pressure capability within a compact footprint
• Modular design to support application-specific configurations
• Proven durability for continuous, long-term operation

By combining precision machining with robust component design, the Optos Series delivers long service life and dependable operation—minimizing downtime and total cost of ownership.

Optos Series Configuration Options

Flow and Performance: Wide range of flow rates for low-flow and precision dosing applications with high discharge pressure capability for challenging system conditions.

• 0.001 to 300mL/min
• Pressure up to 6000psi

Materials of Construction: Multiple pumphead and wetted material options and compatibility with a variety of process fluids.

• 316 Stainless Steel
• Hastelloy-C
• PEEK

Check Valves and Sealing: Standard and specialty check valve configurations, optimized for heated, viscous, or sensitive fluids.

• PTFE and UWHM piston seal options
• Sapphire/ruby or ceramic/PEEK check valve options

Typical Applications

Optos Series metering pumps are used across a wide range of precision fluid-handling applications, including:

• Instrumentation and laboratory systems
• Analytic and prep scale chromatography
• Chemical metering and dosing systems
• Peptide/protein synthesis
• High pressure reactor injection
• Flow chemistry
• Industrial process equipment

These pumps are commonly selected where precise flow control, minimal pulsation, and dependable performance are essential to system accuracy and repeatability.