HD Series
multi-stage horizontal diffuser pump is designed for high-pressure applications where a
metallic pump is unacceptable. Series HD pump create flow with pressures comparable to
pumps with impellers 2 or 3 times their diameter size with less disk friction loss.
Instead of using a relatively large diameter impeller, the same pressure can be obtained
utilizing two or more smaller impellers in series. Thus, smaller pump cases are needed and
require less installation space. 
The diffuser vanes guide the fluid from one
impeller to the next creates a perfectly radial hydraulic balance, increases efficiency
and guarantees a quiet smooth operation. Diffuser pumps are constructed of CPVC and a
316SS or optional titanium shaft allowing for temperatures to 200 F. HD Series pumps are
available in 2-stage or 3-stage. All pumps have 2" FNPT suction x 1 1/2" MNPT
top discharge. Single mechanical seal is carbon/ceramic. Three phase TEFC motors are
standard.
Options: 316SS or titanium shaft -- Viton® or EP elastomer seal
The ideal flow rate for these pumps is 7 to 75 Gallons Per Minute. Pressures are listed below at different GPM
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