Optos precision, high pressure metering pump model 3HM:
- Flow rate 0.04 – 80 mL/min
- Maximum pressure 750 psi
- Material of construction 316 SS
Flow Rate* (mL/min): 0.04 – 80
Max. Pressure (psi): 750
Piston Diameter (in.): 1/4
Piston Stroke (in.): .500
Wetted Parts: type 316 stainless steel, sapphire, ruby, graphite fiber reinforced PTFE, CTFE.
Reproducibility: typically +/-0.3%
Viscosity Limit: 500 centipoise
- Inlet valves: 1/8″ Swagelok style connection for use with 1/8″ tubing (tube nut and ferrule provided with pump).
- Outlet valves: 1/8″ Swagelok style connection for use with 1/8″ 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
Dimensions (DxWxH): 28 x 10 x 23.5 cm (11 x 4 x 9.25 in.)
Weight: 5.3 kg (11.75 lbs.)
- 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
#5922: Includes two graphite fiber reinforced PTFE piston seals, tools for installation, two valve cartridges, one retainer, a 10 micron sintered stainless steel filter.
#5944: Piston seal assembly kit; includes one reinforced PTFE seal, and tools for installation.
#5945: Piston seal replacement kit; includes two reinforced PTFE seals.
#5946: Piston seal replacement kit; includes five reinforced PTFE seals.
#1373: Inlet valve assembly, cartridge style, 1/8″ Swagelok style fitting.
#1374: Outlet valve assembly, cartridge style, 1/8″ Swagelok style fitting.
#1381: Valve cartridge kit (rebuilds one inlet or one outlet valve).
#5821: 1/4″ sapphire piston.
Liquid End Assembly
#5904: Includes inlet and outlet valve assemblies, cylinder, piston seals and retainer. Piston not included.
#5901: Retainer/wash assembly.
For other parts, consult factory
Download product brochures and documentation from our Support page.