EH-HV Series High Viscosity Metering Pumps
From Walchem Corporation

The EH-HV Series High Viscosity Metering Pumps is specifically designed to accurately feed high viscosity chemicals.

* Tested with a 20,000 cps polymer verified with a Brookfield viscometer, Model LVF, at 25° C, #4 spindle at 12 rpm.

Equipped with rugged, machined PVC liquid ends and spring loaded stainless steel valve balls, the HV series is designed for superior valve action and performance. Rated to 20,000 cps*, the HV Series is available in four feed ranges from 1 to 4 GPH (at 50 PSI). Sophisticated design and backed with the industry's only full 2-Year warranty, the EH-HV Series is the perfect solution for high viscosity feed applications.

High Speed Operation
Up to 240 strokes per minute results in high resolution chemical feed, reduced pulsation and improved mixing.

Spring Loaded Valve Action
Stainless Steel springs force Stainless Steel balls against PCTFE valve action with high viscosity polymers.

Adaptable Modular Design
Liquid end, drive and electronics are modular, enabling economical repair or replacement of parts. The control module can easily be mounted in a remote location

Long Lasting Diaphragm
PTFE laminate over EPDM is molded onto a solid core. A retainer plate is engineered to minimize flow rate changes as pressure varies.

• Specifically designed to accurately feed high viscosity chemicals.

• Available in two feed ranges from 2.3 GPH to 4 GPH and pressures up to 73 PSI.

• Up to 240 strokes per minute results in high resolution chemical feed, reduced pulsation and improved mixing

• Stainless Steel or Hastelloy C276 springs help quickly close the valve balls against the PCTFE seats, increasing the valve action with high viscosity polymers.
  
  
• Liquid end, drive and electronics are modular, enabling economical repair or replacement of parts. The control module can easily be mounted in a remote location
  
  
• PTFE laminate over EPDM is molded onto a solid core. A retainer plate is engineered to minimize flow rate changes as pressure varies.

*Output rated w/20,000cps polymer. Output increases with lower viscous fluids up to 25% with water.