3SI

Optos precision, high pressure metering pump model 3SI:

• Flow rate 0.01 – 20 mL/min
• Maximum pressure 1500 psi
• Material of construction PEEK

Other materials:

• 316 SS – model 3SM
• Hastelloy-C – model 3SMH

Flow Rate* (mL/min): 0.01 – 20

Max. Pressure (psi): 1500

Piston Diameter (in.): 1/8

Piston Stroke (in.): .500

Wetted Parts: PEEK, sapphire, ruby, UHMW polyethylene, inert polymers.

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: 1/4″-28 plastic fittings 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

*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.

Preventive Maintenance Kits

#5924: Includes two UHMW polyethylene seals, tools for installation, two valve cartridges, one retainer, a filter.

Piston Seals

#6007: Piston seal assembly kit; includes metal-free seal and tools for installation.

#6008: Piston seal replacement kit; includes two metal-free seals.

#6009: Piston seal replacement kit; includes five metal-free seals.

Valves

#1377: Inlet valve assembly, cartridge style.

#1378: Outlet valve assembly, cartridge style.

#1383: Valve cartridge kit (rebuilds one inlet or one outlet valve).

Piston

#5820: 1/8″ sapphire piston.

Liquid End Assembly

#5906: Includes inlet and outlet valve assemblies, cylinder, piston seals and retainer. Piston not included.

Fittings

#5987: Includes 60 cm of 1/8″ Teflon inlet tubing, inlet (1/4-28) and outlet (1/4-28) tube nuts, and outlet ferrule.

Filters

#1279: 10 micron plastic filter, with 60 cm long Teflon inlet tube and tube nut.

Other Parts

#5897: Retainer/wash assembly.

For other parts, consult factory

Download product brochures and documentation from our Support page.