The AR403-SP diaphragm pump is widely used in the commercial, industrial and agricultural sprayer industries. With a flow rate up to 10.7 gpm and max pressure of 580 psi it is optimal for small or medium-sized sprayers, assisting in the targeted distribution of your liquid product onto desired surfaces for consistent, even coverage every time. This model is equipped with flange to attach gearbox or shaft kit.

Annovi Reverberi is the number one agricultural diaphragm pump manufacturer in the world. Our versatile pumps have been used in a multitude of applications for more than 5 decades in 85 countries worldwide. They are self-priming, with flows from 3.5 to 238 GPM and pressures up to 725 PSI, these pumps can feature the revolutionary AR BLUEFLEX diaphragms. BLUEFLEX is what we believe is the best performing diaphragm material currently available in the market.

Annovi Reverberi AR403-SP 550 RPM semi-hydraulic three diaphragm alternating volumetric pump for use in gardening or semi-professional agricultural sector, trolley-mounted in combination with electric motors or internal combustion engines for gardening, and small sprayers for medium-pressure pesticide treatments in gardens, greenhouses, orchards or vineyards.

Example Uses: Lawn Care, Pest Control & Turf Spraying

SP version equipped with flange to attach gearbox or shaft kit. See page 2 of manual for drive options. 

• Parts in contact with pumped liquids in plastic-coated aluminium and body in aluminium
• Diaphragms in NBR, Desmopan or Viton
• Seals in NBR or Viton
• Die-cast casing with oil-immersed mechanism and clear plastic tank for visual level checking

• Max flow: 10.7 gpm
• Max pressure: 580 psi
• Shaft: Flange to attach gearbox or shaft kit
• Port sizes: 1" HB inlet, 1/2" NPT outlet
• Pump shaft rotation: CW and CCW
• Diaphragms: 3, semi-hydraulic, BlueFlex material
• Housing: Anodized aluminum
• Head & Manifold material: Plastic coated aluminum
• Recommended control unit: GR40
• Recommended gearbox: AR1636 or AR1666 (updated pinion design)  with 3/4" hollow shaft to mount on 5 to 6.5 hp engines
• Max fluid temperature: 140°F
• Weight: 20 lbs