3HMH

Optos precision, high pressure metering pump model 3HMH:

• Flow rate 0.04 – 80 mL/min
• Maximum pressure 750 psi
• Material of construction Hastelloy C

Other materials:

• 316 SS – model 3HM
• PEEK – model 3HI

Flow Rate* (mL/min): 0.05 – 80

Max. Pressure (psi): 750

Piston Diameter (in.): 1/4

Piston Stroke (in.): .500

Wetted Parts: Hastelloy-C, sapphire, ruby, graphite fiber reinforced PTFE, CTFE.

Reproducibility: typically +/-0.3%

Viscosity Limit: 500 centipoise

Tubing Connections:

• 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
• 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.

Piston Seals

#5944: Piston seal assembly kit; includes one graphite fiber reinforced PTFE seal, and tools for installation.

#5945: Piston seal replacement kit; includes two graphite fiber reinforced PTFE seals.

#5946: Piston seal replacement kit; includes five graphite fiber reinforced PTFE seals.

Valves

#6045: Inlet valve assembly, cartridge style, 1/8″ Swagelok style fitting, Hastelloy-C

#6046: Outlet valve assembly, cartridge style, 1/8″ Swagelok style fitting, Hastelloy-C

#6047: Valve cartridge kit (rebuilds one inlet or one outlet valve).

Piston

#5821: 1/4″ sapphire piston.

Liquid End Assembly

#6079: Includes inlet and outlet valve assemblies, cylinder, piston seals and retainer. Hastelloy-C.  Piston not included.

Other Parts

#6083: Retainer/wash assembly – Hastelloy-C.

For other parts, consult factory

Download product brochures and documentation from our Support page.