HDD series features
The HDD series gear metering pump utilize a precision-cast D-shaped sleeve with internal lubrication and cooling. This design is suitable for high-viscosity fluids and can pump under high vacuum conditions. They offer repeatable measurement accuracy up to 1‰ and are designed with a variety of corrosion-resistant materials.
Performance parameter
Pressure:<100Bar（According to fluid viscosity）
Speed:<1000r/min
Viscosity:<100000Cps
Temperature:-10-200C
Vacuum degree: -0.98Bar
Common materials
Pump casing material: 304，316L
Axis material: 440C,2205，2507
Sealing: mechanical seal, packing seal
D-type sleeve material: 440C, Cr12, graphite, silicon carbide
Static sealing: fluororubber, perfluoroether, perfluorotetrafluoro
Typical applications of D-series
Molecular distillation, Resin, Water glass, Plastic film, Fertilizer coat-ing agent, AB glue, Heavy oil, Honey, Latex paint.
Typical Structure of HDD Series
