Mazzei - 978 Series - 1.0” Male NPT Inlet/Outlet Connections (0.50” Barbed/Male NPT Threaded Suction Port Cap)
Mazzei 978 Series Venturi Injector
The Mazzei 978 Series venturi injector uses differential pressure to draw chemical or gas additives into your water stream with minimal pressure loss. With 1.0" male NPT inlet and outlet connections and a 0.50" suction port, this injector operates efficiently across a wide pressure range, requires only minimal differential to create vacuum, and mixes thoroughly with internal vanes that generate thousands of microbubbles for maximum solubility.
Patented Venturi Injection Technology
Pressure Constriction
Water entering the inlet is constricted toward the injection chamber, accelerating into a high-velocity jet stream
Vacuum Creation
Increased velocity through the chamber drops absolute pressure, creating vacuum that draws additives through the suction port
Internal Mixing Vanes
Patented vanes generate thousands of microbubbles, dramatically increasing surface area for gas-liquid contact and solubility
Flow Restoration
Jet stream diffuses toward the outlet, reducing velocity and resuming normal flow in a thoroughly mixed state with minimal energy loss
978 Series Configuration
| Inlet Connection | 1.0" Male NPT |
| Outlet Connection | 1.0" Male NPT |
| Suction Port | 0.50" Barbed/Male NPT Threaded Cap |
| Mixing Technology | Internal vanes with microbubble generation |
| Moving Parts | None — maintenance-free design |
| Pressure Differential | Minimal required to initiate vacuum |
Available in Three High-Performance Plastics
Polypropylene (PP)
Versatile and cost-effective. Highly resistant to most acids and alkalis. High tensile strength, lightweight, and rigid construction
PVDF (Polyvinylidene Fluoride)
Advanced thermoplastic superior to PVC and PP. Handles higher pressures and temperatures. Resistant to ozone, sulfuric and nitric acids, chlorine, and UV. NSF 61 and FDA approved
ECTFE (Ethylene Chlorotrifluoroethylene)
Extreme chemical resistance in alkaline environments above pH 10. Low flammability, excellent weather resistance, insensitive to UV-A and UV-B light. Physiologically safe
Chemical and Gas Injection Systems
The Mazzei 978 Series injector is designed for commercial and industrial water treatment applications requiring precise chemical dosing or gas dissolution. Ideal for chlorine injection, pH adjustment, fertilizer injection in irrigation, ozone dissolution, oxygen transfer in aquaculture, and any application where liquid or gas additives must be thoroughly mixed into a pressurized water stream. The 1.0" NPT connections accommodate flow rates suitable for medium to large-scale systems. Available in X, A, and C variations for different suction rate and connection configurations — consult Mazzei documentation for performance curves specific to your application and outlet pressure requirements.
Mazzei injectors have been the industry standard for venturi injection since 1978, trusted by engineers worldwide for precision, reliability, and performance that outperforms traditional pump injection systems.
Mazzei 978 Series Venturi Injector
The Mazzei 978 Series venturi injector uses differential pressure to draw chemical or gas additives into your water stream with minimal pressure loss. With 1.0" male NPT inlet and outlet connections and a 0.50" suction port, this injector operates efficiently across a wide pressure range, requires only minimal differential to create vacuum, and mixes thoroughly with internal vanes that generate thousands of microbubbles for maximum solubility.
Patented Venturi Injection Technology
Pressure Constriction
Water entering the inlet is constricted toward the injection chamber, accelerating into a high-velocity jet stream
Vacuum Creation
Increased velocity through the chamber drops absolute pressure, creating vacuum that draws additives through the suction port
Internal Mixing Vanes
Patented vanes generate thousands of microbubbles, dramatically increasing surface area for gas-liquid contact and solubility
Flow Restoration
Jet stream diffuses toward the outlet, reducing velocity and resuming normal flow in a thoroughly mixed state with minimal energy loss
978 Series Configuration
| Inlet Connection | 1.0" Male NPT |
| Outlet Connection | 1.0" Male NPT |
| Suction Port | 0.50" Barbed/Male NPT Threaded Cap |
| Mixing Technology | Internal vanes with microbubble generation |
| Moving Parts | None — maintenance-free design |
| Pressure Differential | Minimal required to initiate vacuum |
Available in Three High-Performance Plastics
Polypropylene (PP)
Versatile and cost-effective. Highly resistant to most acids and alkalis. High tensile strength, lightweight, and rigid construction
PVDF (Polyvinylidene Fluoride)
Advanced thermoplastic superior to PVC and PP. Handles higher pressures and temperatures. Resistant to ozone, sulfuric and nitric acids, chlorine, and UV. NSF 61 and FDA approved
ECTFE (Ethylene Chlorotrifluoroethylene)
Extreme chemical resistance in alkaline environments above pH 10. Low flammability, excellent weather resistance, insensitive to UV-A and UV-B light. Physiologically safe
Chemical and Gas Injection Systems
The Mazzei 978 Series injector is designed for commercial and industrial water treatment applications requiring precise chemical dosing or gas dissolution. Ideal for chlorine injection, pH adjustment, fertilizer injection in irrigation, ozone dissolution, oxygen transfer in aquaculture, and any application where liquid or gas additives must be thoroughly mixed into a pressurized water stream. The 1.0" NPT connections accommodate flow rates suitable for medium to large-scale systems. Available in X, A, and C variations for different suction rate and connection configurations — consult Mazzei documentation for performance curves specific to your application and outlet pressure requirements.
Mazzei injectors have been the industry standard for venturi injection since 1978, trusted by engineers worldwide for precision, reliability, and performance that outperforms traditional pump injection systems.
Original: $115.30
-65%$115.30
$40.35Description
Mazzei 978 Series Venturi Injector
The Mazzei 978 Series venturi injector uses differential pressure to draw chemical or gas additives into your water stream with minimal pressure loss. With 1.0" male NPT inlet and outlet connections and a 0.50" suction port, this injector operates efficiently across a wide pressure range, requires only minimal differential to create vacuum, and mixes thoroughly with internal vanes that generate thousands of microbubbles for maximum solubility.
Patented Venturi Injection Technology
Pressure Constriction
Water entering the inlet is constricted toward the injection chamber, accelerating into a high-velocity jet stream
Vacuum Creation
Increased velocity through the chamber drops absolute pressure, creating vacuum that draws additives through the suction port
Internal Mixing Vanes
Patented vanes generate thousands of microbubbles, dramatically increasing surface area for gas-liquid contact and solubility
Flow Restoration
Jet stream diffuses toward the outlet, reducing velocity and resuming normal flow in a thoroughly mixed state with minimal energy loss
978 Series Configuration
| Inlet Connection | 1.0" Male NPT |
| Outlet Connection | 1.0" Male NPT |
| Suction Port | 0.50" Barbed/Male NPT Threaded Cap |
| Mixing Technology | Internal vanes with microbubble generation |
| Moving Parts | None — maintenance-free design |
| Pressure Differential | Minimal required to initiate vacuum |
Available in Three High-Performance Plastics
Polypropylene (PP)
Versatile and cost-effective. Highly resistant to most acids and alkalis. High tensile strength, lightweight, and rigid construction
PVDF (Polyvinylidene Fluoride)
Advanced thermoplastic superior to PVC and PP. Handles higher pressures and temperatures. Resistant to ozone, sulfuric and nitric acids, chlorine, and UV. NSF 61 and FDA approved
ECTFE (Ethylene Chlorotrifluoroethylene)
Extreme chemical resistance in alkaline environments above pH 10. Low flammability, excellent weather resistance, insensitive to UV-A and UV-B light. Physiologically safe
Chemical and Gas Injection Systems
The Mazzei 978 Series injector is designed for commercial and industrial water treatment applications requiring precise chemical dosing or gas dissolution. Ideal for chlorine injection, pH adjustment, fertilizer injection in irrigation, ozone dissolution, oxygen transfer in aquaculture, and any application where liquid or gas additives must be thoroughly mixed into a pressurized water stream. The 1.0" NPT connections accommodate flow rates suitable for medium to large-scale systems. Available in X, A, and C variations for different suction rate and connection configurations — consult Mazzei documentation for performance curves specific to your application and outlet pressure requirements.
Mazzei injectors have been the industry standard for venturi injection since 1978, trusted by engineers worldwide for precision, reliability, and performance that outperforms traditional pump injection systems.
