ecoflow packed plunger

LEWA ecoflow packed plunger metering pumps with the tried-and-tested LEWA plunger seals for maximum tightness, designed to API 675. Standard pump head with a single gland for pressures up to 160 bar (up to 9 m³/h, -70 to +400 °C, viscosity up to 1,500,000 mPa·s), high-pressure head with a double tensioned gland packing for up to 500 bar, a heated design with total heating jacket for melts and heads for up to 19 m³/h. Absolute suction pressure down to 0.1 bar, multiplex or compact boxer arrangement for metering several liquids at once.

Key technical parameters

• Flow rate: up to 19 m³/h
• Pressure: up to 500 bar (160 bar with single gland)
• Fluid temperature: -70 to +400 °C
• Viscosity: up to 1,500,000 mPa·s
• Drive: Electric motor
• Seal: packed plunger, single or double tensioned gland
• Standards: API 675, VDMA 24284

Media handled

• Liquids: Chemicals, Acid, Alkali, Solvent, Oil (mineral)
• Media properties: Low viscosity, High viscosity, Abrasive, Corrosive

Applications and industries

• Metering of melts and highly viscous media
• Chemical, petrochemical and plastics processing
• Oil and gas