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Mazzei - ISO 978 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50” Barbed/Male NPT Threaded Suction Port Cap)

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Mazzei - ISO 978 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50” Barbed/Male NPT Threaded Suction Port Cap)

The Mazzei ISO 978 Series venturi injector features 25mm male BSPT inlet and outlet connections with a 0.50" suction port, engineered for precise chemical and gas injection in water treatment systems. Internal mixing vanes create thousands of microbubbles for superior dissolution and contact efficiency with no moving parts to maintain.
SPECIFICATIONS

ISO 978 Series Key Specs

Model Series
ISO 978
Mazzei venturi injector
Inlet/Outlet
25mm BSPT
Male British Standard Pipe Thread
Suction Port
0.50"
Barbed/Male NPT threaded cap
Design Type
Differential Pressure
Internal mixing vanes
Moving Parts
Zero
Maintenance-free design
Construction
Multiple Options
GRPP, PVDF, or ECTFE available
TECHNICAL DETAILS

Operating Principle & Materials

Operation Method Pressurized water creates high-velocity jet stream through constricted injection chamber, generating vacuum at suction port to draw and mix additives
Vacuum Generation Minimal pressure differential required between inlet and outlet to initiate suction
Mixing Technology Internal vanes create thousands of microbubbles with greatly increased surface area for superior gas dissolution (air, oxygen, ozone)
GRPP (Green Polypropylene) Highly resistant to acids and alkalis, high tensile strength, lightweight and cost-effective
PVDF (Blue Polyvinylidene Fluoride) Higher pressure/temperature capability, ozone resistant, UV resistant, NSF 61 and FDA approved (Natural PVDF)
ECTFE (Ethylene Chlorotrifluoroethylene) Excellent alkaline resistance above pH 10, extreme chemical resistance, physiologically safe, low flammability per DIN 4102
BSPT Connection Note 25mm BSPT measures approximately 1.041" actual diameter on ruler, not 25mm. 0.5" Male NPT PVDF threads are interchangeable with 15mm Male BSPT PVDF
COMPATIBILITY & APPLICATIONS

Water Treatment System Integration

The Mazzei ISO 978 Series venturi injector integrates into pressurized water lines for chemical dosing, ozone injection, oxygen enrichment, and gas dissolution applications in municipal water treatment, aquaculture, industrial process water, and irrigation systems. The 25mm male BSPT connections accommodate international plumbing standards, while the 0.50" suction port accepts barbed tubing or male NPT threaded fittings for flexible chemical feed integration. Material selection depends on chemical compatibility and operating conditions: GRPP for general acids and alkalis, PVDF for higher pressures and ozone environments, and ECTFE for extreme alkaline conditions above pH 10. The differential pressure design operates efficiently across a wide pressure range without external power or moving parts.

💧 Pro Tip: Mazzei injectors require minimal pressure drop to generate vacuum—typically 10-15 PSI differential is sufficient. Install a pressure gauge before and after the injector to verify adequate differential for consistent suction performance, especially when injecting dense or viscous chemicals.
The Mazzei ISO 978 Series venturi injector features 25mm male BSPT inlet and outlet connections with a 0.50" suction port, engineered for precise chemical and gas injection in water treatment systems. Internal mixing vanes create thousands of microbubbles for superior dissolution and contact efficiency with no moving parts to maintain.
SPECIFICATIONS

ISO 978 Series Key Specs

Model Series
ISO 978
Mazzei venturi injector
Inlet/Outlet
25mm BSPT
Male British Standard Pipe Thread
Suction Port
0.50"
Barbed/Male NPT threaded cap
Design Type
Differential Pressure
Internal mixing vanes
Moving Parts
Zero
Maintenance-free design
Construction
Multiple Options
GRPP, PVDF, or ECTFE available
TECHNICAL DETAILS

Operating Principle & Materials

Operation Method Pressurized water creates high-velocity jet stream through constricted injection chamber, generating vacuum at suction port to draw and mix additives
Vacuum Generation Minimal pressure differential required between inlet and outlet to initiate suction
Mixing Technology Internal vanes create thousands of microbubbles with greatly increased surface area for superior gas dissolution (air, oxygen, ozone)
GRPP (Green Polypropylene) Highly resistant to acids and alkalis, high tensile strength, lightweight and cost-effective
PVDF (Blue Polyvinylidene Fluoride) Higher pressure/temperature capability, ozone resistant, UV resistant, NSF 61 and FDA approved (Natural PVDF)
ECTFE (Ethylene Chlorotrifluoroethylene) Excellent alkaline resistance above pH 10, extreme chemical resistance, physiologically safe, low flammability per DIN 4102
BSPT Connection Note 25mm BSPT measures approximately 1.041" actual diameter on ruler, not 25mm. 0.5" Male NPT PVDF threads are interchangeable with 15mm Male BSPT PVDF
COMPATIBILITY & APPLICATIONS

Water Treatment System Integration

The Mazzei ISO 978 Series venturi injector integrates into pressurized water lines for chemical dosing, ozone injection, oxygen enrichment, and gas dissolution applications in municipal water treatment, aquaculture, industrial process water, and irrigation systems. The 25mm male BSPT connections accommodate international plumbing standards, while the 0.50" suction port accepts barbed tubing or male NPT threaded fittings for flexible chemical feed integration. Material selection depends on chemical compatibility and operating conditions: GRPP for general acids and alkalis, PVDF for higher pressures and ozone environments, and ECTFE for extreme alkaline conditions above pH 10. The differential pressure design operates efficiently across a wide pressure range without external power or moving parts.

💧 Pro Tip: Mazzei injectors require minimal pressure drop to generate vacuum—typically 10-15 PSI differential is sufficient. Install a pressure gauge before and after the injector to verify adequate differential for consistent suction performance, especially when injecting dense or viscous chemicals.
$63.77

Original: $182.20

-65%
Mazzei - ISO 978 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50” Barbed/Male NPT Threaded Suction Port Cap)

$182.20

$63.77

Description

The Mazzei ISO 978 Series venturi injector features 25mm male BSPT inlet and outlet connections with a 0.50" suction port, engineered for precise chemical and gas injection in water treatment systems. Internal mixing vanes create thousands of microbubbles for superior dissolution and contact efficiency with no moving parts to maintain.
SPECIFICATIONS

ISO 978 Series Key Specs

Model Series
ISO 978
Mazzei venturi injector
Inlet/Outlet
25mm BSPT
Male British Standard Pipe Thread
Suction Port
0.50"
Barbed/Male NPT threaded cap
Design Type
Differential Pressure
Internal mixing vanes
Moving Parts
Zero
Maintenance-free design
Construction
Multiple Options
GRPP, PVDF, or ECTFE available
TECHNICAL DETAILS

Operating Principle & Materials

Operation Method Pressurized water creates high-velocity jet stream through constricted injection chamber, generating vacuum at suction port to draw and mix additives
Vacuum Generation Minimal pressure differential required between inlet and outlet to initiate suction
Mixing Technology Internal vanes create thousands of microbubbles with greatly increased surface area for superior gas dissolution (air, oxygen, ozone)
GRPP (Green Polypropylene) Highly resistant to acids and alkalis, high tensile strength, lightweight and cost-effective
PVDF (Blue Polyvinylidene Fluoride) Higher pressure/temperature capability, ozone resistant, UV resistant, NSF 61 and FDA approved (Natural PVDF)
ECTFE (Ethylene Chlorotrifluoroethylene) Excellent alkaline resistance above pH 10, extreme chemical resistance, physiologically safe, low flammability per DIN 4102
BSPT Connection Note 25mm BSPT measures approximately 1.041" actual diameter on ruler, not 25mm. 0.5" Male NPT PVDF threads are interchangeable with 15mm Male BSPT PVDF
COMPATIBILITY & APPLICATIONS

Water Treatment System Integration

The Mazzei ISO 978 Series venturi injector integrates into pressurized water lines for chemical dosing, ozone injection, oxygen enrichment, and gas dissolution applications in municipal water treatment, aquaculture, industrial process water, and irrigation systems. The 25mm male BSPT connections accommodate international plumbing standards, while the 0.50" suction port accepts barbed tubing or male NPT threaded fittings for flexible chemical feed integration. Material selection depends on chemical compatibility and operating conditions: GRPP for general acids and alkalis, PVDF for higher pressures and ozone environments, and ECTFE for extreme alkaline conditions above pH 10. The differential pressure design operates efficiently across a wide pressure range without external power or moving parts.

💧 Pro Tip: Mazzei injectors require minimal pressure drop to generate vacuum—typically 10-15 PSI differential is sufficient. Install a pressure gauge before and after the injector to verify adequate differential for consistent suction performance, especially when injecting dense or viscous chemicals.