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Available Models & Performance

Hydraulic Pump Selection Guide

Use the guide to select the perfect pump for your application.
Learn more or go directly to the guide using the links below

Service Videos

See videos of Chris, a Hypro Service Technician, as he services / overhauls a Hypro Diaphragm pump

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Model 9910-D252, 9910-D252GRGI, 9910-D252GRGI58
9910-D252 Series - Anodized Aluminum 2 Diaphragm Pumps


These 2 diaphragm, anodized aluminum pumps achieve up to 6 gpm (22.7 lpm) and 290 psi (20 bar). This series includes models 9910-D252, 9910-D252GRGI & 9910-D252GRGI58.
Pentair Hypro medium pressure diaphragm pumps are recommended for spraying herbicides, pesticides, liquid fertilizers, and many other hard-to-handle fluids. Low-cost maintenance and almost wear-free operation make these pumps ideal for a wide variety of spraying jobs.
Pressure and output are designed for optimum performance of small to medium-sized sprayers. Pentair Hypro medium pressure diaphragm pumps can be adapted for male 1-3/8" splined shaft, female 1-3/8" splined shaft, 1" solid shaft, or gear reduction drive options. Pumps include a pulsation dampener.
Key Features
  •  Port sizes: 3⁄4" HB inlet, 1⁄2" NPT outlet (D252); 3⁄8" HB outlet (all gear reduction models)
  •  Shaft (D252): 3⁄4" solid keyed
  •  Shaft (D252GRGI): 3⁄4" hollow shaft with gear reduction for 2 to 3-1/2 hp gasoline engine
  •  Shaft (D252GRGI58): 5⁄8" hollow shaft with gear reduction for 2 to 3-1/2 hp gasoline engine
  •  Shaft (D252GRGIAP): 3/4" hollow shaft with a 5⁄8" output shaft and gear reduction for 3 hp gasoline engine
  •   Diaphragms: 2, semi-hydraulic
  •  Mounting base included
  •  Crankcase Oil Capacity: 13 oz.


  • Housing: anodized aluminum


MAXIMUM FLOW:  6 gpm/22.7 lpm

MAXIMUM PRESSURE:  290 psi/20 bar

MAXIMUM RATED SPEED:  650 rpm (D252); 3600 rpm (D252GRGI, D252GRGIAP and D252GRGI58)


WEIGHT:  12 lbs./5.4 kg (D252); 14 lbs./6.4 kg (all gear reduction models)

Catalog Section: Diaphragm Pumps (HYP01 Excerpt)
Owner's Manual: Medium Pressure Diaphragm Pumps (L-1382)
Parts Breakdown: Series 9910-D252 Diaphragm Pumps (L-1382)
Performance: Series 9910-D252 Diaphragm Pumps (English Standard and Metric)