With three diaphragms and fully adjustable pressure levels, the ZETA-85P with gear reduction is only of the most versatile commercial pumps on the market. The additional gear box allows the engine to run at varying speeds between 4 and 6.5 HP. The manual dump lever makes cleaning out the system simple, and the dual valve outlets make wide coverage easier than ever. 

ZETA-85P 3-cylinder poly diaphragm pump with control unit, adjustable pressure regulator, manual dump lever, dual ball valve outlets, and gearbox for 5-6.5 hp engines. Excellent for horticultural and agricultural spraying, plus mild chlorine and abrasive fluids.

Construction: Anodized aluminum body with stainless steel valves and diaphragm bolts, poly heads and manifolds. Includes control valve and pressure gauge.

Features: Can run dry. Self-priming operation. Visual oil sight gauges. Large oil bath crank case with drain plugs for easy maintenance. Compatible with liquid fertilizers, abrasives, pesticides, de-icing materials, and suspension products. Adapts to PTO, gas engine, hydraulic, and belt drive. Max fluid temp: 140°F (custom to 200°F). One-piece stainless steel diaphragm bolts. Heavy duty urethane diaphragms. Simple design with common parts for affordable maintenance.

Download Product Manual

• Max flow: 22 gpm
• Max pressure: 300 psi
• Includes 6010.96 control unit and 5027.75 gearbox with 3/4" hollow shaft for mounting on 5 to 6.5 hp gas engines
• Port sizes: 1-1/4" HB inlet, (2) 1/2" HB outlet and 3/4" HB Bypass
• Pump shaft rotation: CW and CCW
• Diaphragms: 3, semi-hydraulic, GREENTECH standard, Buna available
• Head material: Polypropylene for increased chemical resistance
• Max fluid temperature: 140°F
• Weight: 48 lbs