The Hypro D503 pump is an anodized, three semi-hydraulic diaphragm, and medium pressure pump that ensures top-level performance from small to medium sized sprayers. This pump can produce 14.3 gpm and 580 psi. The Hypro D503 pump is adaptable for male or female 1-3/8" splined shafts, 1" solid shafts, or gear reduction drive. This pump can be connected to a gas engine to spray herbicides, pesticides, and many other fluids.

Hypro/Pentair is no longer distributing the 9910 series of diaphragm pumps, components, and related parts. Products with Hypro labeling will be unavailable soon.

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. 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 except for Models 9910-D303, D403, and D503s.

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• Max flow: 14.3 gpm
• Max pressure: 580 psi
• Max rpm: 550
• Includes 9910-RM40 pressure regulator and 9910-KIT1642 gearbox with 1" hollow shaft for mounting to 8-11 hp gas engines
• Port sizes: 1-1/4" HB inlet, (2) 1/2" HB outlet, 1" HB bypass
• Pump shaft rotation: CW and CCW
• Diaphragms: 3, semi-hydraulic, Desmopan® standard Buna available
• Housing: Anodized aluminum
• Max fluid temperature: 140°F
• Weight: 43 lbs