Udor ZETA-120/GR Diaphragm Pump with Gear Reduction – 31 GPM, 300 PSI, 1" Shaft
The Udor ZETA-120/GR is a high-flow, gas-engine-driven, 3 cylinder diaphragm pump designed for agricultural, horticultural, commercial spraying, fire-control and other demanding liquid-transfer and spray applications. This configuration combines the ZETA 120 pump with a factory gear reduction for gasoline engines with a 1" shaft in a 8-20 HP range.
Its three-diaphragm design delivers a maximum 31 GPM / 116 LPM at 300 PSI / 20 bar, with a maximum pump speed of 550 RPM.
The pump uses an anodized aluminum body, plasticized aluminum heads, stainless-steel valves and glass-filled nylon manifolds. The ZETA 120 series as suitable for horticultural and agricultural spraying applications.
The Zeta 120 does not come with a regulator. Part # 6005.31/LP-N is the recommended regulator.
The Zeta 120/GR replacement diaphragm kit is part # 8700.04.
Performance Specifications
| Specification | Details |
|---|---|
| Manufacturer | Udor |
| Model | ZETA-120/GR |
| Current Designation | ZETA 120 VAGR1 |
| Pump Type | Low-Pressure Diaphragm Pump |
| Cylinders / Diaphragms | 3 |
| Maximum Flow | 31 GPM / 116 LPM |
| Maximum Pressure | 300 PSI / 20 bar |
| Maximum Pump Speed | 550 RPM |
| Drive | Gas-Engine Gear Reduction |
| Engine Shaft | 1" |
| Engine Range | 8–20 HP |
| Gear Reduction | 5100.04 current / 5033.A4 legacy |
| Gear Ratio | 6.4:1 |
| Gearbox Oil Capacity | 17.25 oz. |
| Gearbox Oil | 80/90W recommended |
| Inlet | 1-1/2" Hose Barb |
| Outlet | 3/4" Hose Barb |
| Bypass | None on pump |
| Piston Diameter | 55 mm |
| Crankshaft Stroke | 11 mm / J |
| Pump Oil Capacity | 40 oz. |
| Pump Weight | 45 lb |
| Complete VAGR1 Weight | 55 lb |
| Regulator Included | No |
Click here to download the Zeta 120/GR manual
