
Mazzei - 684 Series - 0.75" Male NPT Inlet/Outlet Connections (0.25" Barbed Suction Port Cap)
Mazzei 684 Series Core Specs
Operating Parameters & Construction
| Manufacturer | Mazzei Injector Corporation |
| Model Number | 684-NPVDF |
| Connection Type | Male NPT (National Pipe Thread) |
| Operating Principle | Differential pressure venturi with internal mixing vanes |
| Vacuum Generation | Minimal inlet/outlet pressure differential required |
| Material Properties | UV resistant, ozone resistant, superior chemical resistance to acids and chlorine |
| Maintenance Requirements | Minimal (no moving parts to service or replace) |
Ideal Use Cases for the Mazzei 684 Series
The 684 Series injector is engineered for chemical dosing, fertilizer injection, ozone dissolution, and air entrainment in water treatment systems where 0.75" NPT connections are standard. The PVDF construction makes it compatible with aggressive chemicals including chlorine, sulfuric acid, nitric acid, and alkaline solutions, while maintaining performance in outdoor installations exposed to UV radiation. The 0.25" barbed suction port accepts standard tubing for connection to chemical reservoirs or gas sources. This injector operates effectively across a wide pressure range and is suitable for agricultural irrigation, aquaculture oxygenation, municipal water disinfection, and industrial process applications requiring precise additive injection with thorough mixing.
Mazzei 684 Series Core Specs
Operating Parameters & Construction
| Manufacturer | Mazzei Injector Corporation |
| Model Number | 684-NPVDF |
| Connection Type | Male NPT (National Pipe Thread) |
| Operating Principle | Differential pressure venturi with internal mixing vanes |
| Vacuum Generation | Minimal inlet/outlet pressure differential required |
| Material Properties | UV resistant, ozone resistant, superior chemical resistance to acids and chlorine |
| Maintenance Requirements | Minimal (no moving parts to service or replace) |
Ideal Use Cases for the Mazzei 684 Series
The 684 Series injector is engineered for chemical dosing, fertilizer injection, ozone dissolution, and air entrainment in water treatment systems where 0.75" NPT connections are standard. The PVDF construction makes it compatible with aggressive chemicals including chlorine, sulfuric acid, nitric acid, and alkaline solutions, while maintaining performance in outdoor installations exposed to UV radiation. The 0.25" barbed suction port accepts standard tubing for connection to chemical reservoirs or gas sources. This injector operates effectively across a wide pressure range and is suitable for agricultural irrigation, aquaculture oxygenation, municipal water disinfection, and industrial process applications requiring precise additive injection with thorough mixing.
Original: $108.16
-65%$108.16
$37.86Description
Mazzei 684 Series Core Specs
Operating Parameters & Construction
| Manufacturer | Mazzei Injector Corporation |
| Model Number | 684-NPVDF |
| Connection Type | Male NPT (National Pipe Thread) |
| Operating Principle | Differential pressure venturi with internal mixing vanes |
| Vacuum Generation | Minimal inlet/outlet pressure differential required |
| Material Properties | UV resistant, ozone resistant, superior chemical resistance to acids and chlorine |
| Maintenance Requirements | Minimal (no moving parts to service or replace) |
Ideal Use Cases for the Mazzei 684 Series
The 684 Series injector is engineered for chemical dosing, fertilizer injection, ozone dissolution, and air entrainment in water treatment systems where 0.75" NPT connections are standard. The PVDF construction makes it compatible with aggressive chemicals including chlorine, sulfuric acid, nitric acid, and alkaline solutions, while maintaining performance in outdoor installations exposed to UV radiation. The 0.25" barbed suction port accepts standard tubing for connection to chemical reservoirs or gas sources. This injector operates effectively across a wide pressure range and is suitable for agricultural irrigation, aquaculture oxygenation, municipal water disinfection, and industrial process applications requiring precise additive injection with thorough mixing.












