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Mazzei - ISO 878 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50" Barbed/Male NPT Threaded Suction Port Cap)

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Mazzei - ISO 878 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50" Barbed/Male NPT Threaded Suction Port Cap)

The Mazzei ISO 878 Series injector delivers precision venturi injection with 25mm male BSPT inlet and outlet connections, engineered for high-efficiency chemical or air dosing in commercial and industrial water treatment systems. This differential pressure injector features internal mixing vanes that create thousands of microbubbles for superior gas dissolution and chemical mixing, with no moving parts to maintain.
SPECIFICATIONS

ISO 878 Series Technical Specs

Inlet/Outlet Size
25mm Male BSPT
British Standard Pipe Thread
Suction Port
0.50" Barbed/Male NPT
Threaded cap configuration
Manufacturer
Mazzei
ISO 878 Series
Design Type
Venturi Injector
Internal mixing vanes
Moving Parts
Zero
Maintenance-free operation
Applications
Chemical & Air
Wide pressure range
TECHNICAL DETAILS

Performance & Construction

Model Series Mazzei ISO 878
Inlet Connection 25mm Male BSPT (measures approximately 1.041" diameter)
Outlet Connection 25mm Male BSPT (measures approximately 1.041" diameter)
Suction Port Cap 0.50" Barbed/Male NPT Threaded
Operating Principle Differential pressure with venturi effect and internal mixing vanes
Material Options Polypropylene (Green GRPP), PVDF (Blue or Natural), ECTFE
Maintenance Requirements None — no moving parts to service or replace
COMPATIBILITY & APPLICATIONS

How the Mazzei ISO 878 Works

When pressurized water enters the injector inlet, it constricts through the injection chamber and accelerates into a high-velocity jet stream. This velocity increase creates a pressure drop that generates vacuum at the suction port, drawing liquid or gas additives into the water stream. The internal mixing vanes create thousands of microbubbles, dramatically increasing surface area for superior gas dissolution compared to conventional injection methods. As the jet diffuses toward the outlet, velocity reduces and flow resumes in a thoroughly mixed state with minimal energy loss. The ISO 878 Series operates over a wide pressure range and requires only minimal differential pressure to initiate suction. Ideal for chemical dosing, ozone injection, oxygen enrichment, and pH adjustment in reverse osmosis pretreatment, aquaculture, irrigation, and industrial process water applications. Material selection depends on chemical compatibility: polypropylene for cost-effective acid/alkali resistance, PVDF for high-temperature and ozone applications with NSF 61 and FDA compliance (Natural PVDF), or ECTFE for extreme alkaline environments above pH 10. Note that BSPT threads measure larger than their nominal size—25mm BSPT measures approximately 1.041 inches actual diameter, not 25mm.

💧 Mazzei venturi injectors require no electricity and have no moving parts, making them significantly more reliable and cost-effective than pump-fed injection systems. Minimal pressure differential is needed to generate vacuum—typically 10-20 PSI across the injector is sufficient for most chemical dosing applications.
The Mazzei ISO 878 Series injector delivers precision venturi injection with 25mm male BSPT inlet and outlet connections, engineered for high-efficiency chemical or air dosing in commercial and industrial water treatment systems. This differential pressure injector features internal mixing vanes that create thousands of microbubbles for superior gas dissolution and chemical mixing, with no moving parts to maintain.
SPECIFICATIONS

ISO 878 Series Technical Specs

Inlet/Outlet Size
25mm Male BSPT
British Standard Pipe Thread
Suction Port
0.50" Barbed/Male NPT
Threaded cap configuration
Manufacturer
Mazzei
ISO 878 Series
Design Type
Venturi Injector
Internal mixing vanes
Moving Parts
Zero
Maintenance-free operation
Applications
Chemical & Air
Wide pressure range
TECHNICAL DETAILS

Performance & Construction

Model Series Mazzei ISO 878
Inlet Connection 25mm Male BSPT (measures approximately 1.041" diameter)
Outlet Connection 25mm Male BSPT (measures approximately 1.041" diameter)
Suction Port Cap 0.50" Barbed/Male NPT Threaded
Operating Principle Differential pressure with venturi effect and internal mixing vanes
Material Options Polypropylene (Green GRPP), PVDF (Blue or Natural), ECTFE
Maintenance Requirements None — no moving parts to service or replace
COMPATIBILITY & APPLICATIONS

How the Mazzei ISO 878 Works

When pressurized water enters the injector inlet, it constricts through the injection chamber and accelerates into a high-velocity jet stream. This velocity increase creates a pressure drop that generates vacuum at the suction port, drawing liquid or gas additives into the water stream. The internal mixing vanes create thousands of microbubbles, dramatically increasing surface area for superior gas dissolution compared to conventional injection methods. As the jet diffuses toward the outlet, velocity reduces and flow resumes in a thoroughly mixed state with minimal energy loss. The ISO 878 Series operates over a wide pressure range and requires only minimal differential pressure to initiate suction. Ideal for chemical dosing, ozone injection, oxygen enrichment, and pH adjustment in reverse osmosis pretreatment, aquaculture, irrigation, and industrial process water applications. Material selection depends on chemical compatibility: polypropylene for cost-effective acid/alkali resistance, PVDF for high-temperature and ozone applications with NSF 61 and FDA compliance (Natural PVDF), or ECTFE for extreme alkaline environments above pH 10. Note that BSPT threads measure larger than their nominal size—25mm BSPT measures approximately 1.041 inches actual diameter, not 25mm.

💧 Mazzei venturi injectors require no electricity and have no moving parts, making them significantly more reliable and cost-effective than pump-fed injection systems. Minimal pressure differential is needed to generate vacuum—typically 10-20 PSI across the injector is sufficient for most chemical dosing applications.
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From $40.35

Original: $115.30

-65%
Mazzei - ISO 878 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50" Barbed/Male NPT Threaded Suction Port Cap)

$115.30

$40.35

Description

The Mazzei ISO 878 Series injector delivers precision venturi injection with 25mm male BSPT inlet and outlet connections, engineered for high-efficiency chemical or air dosing in commercial and industrial water treatment systems. This differential pressure injector features internal mixing vanes that create thousands of microbubbles for superior gas dissolution and chemical mixing, with no moving parts to maintain.
SPECIFICATIONS

ISO 878 Series Technical Specs

Inlet/Outlet Size
25mm Male BSPT
British Standard Pipe Thread
Suction Port
0.50" Barbed/Male NPT
Threaded cap configuration
Manufacturer
Mazzei
ISO 878 Series
Design Type
Venturi Injector
Internal mixing vanes
Moving Parts
Zero
Maintenance-free operation
Applications
Chemical & Air
Wide pressure range
TECHNICAL DETAILS

Performance & Construction

Model Series Mazzei ISO 878
Inlet Connection 25mm Male BSPT (measures approximately 1.041" diameter)
Outlet Connection 25mm Male BSPT (measures approximately 1.041" diameter)
Suction Port Cap 0.50" Barbed/Male NPT Threaded
Operating Principle Differential pressure with venturi effect and internal mixing vanes
Material Options Polypropylene (Green GRPP), PVDF (Blue or Natural), ECTFE
Maintenance Requirements None — no moving parts to service or replace
COMPATIBILITY & APPLICATIONS

How the Mazzei ISO 878 Works

When pressurized water enters the injector inlet, it constricts through the injection chamber and accelerates into a high-velocity jet stream. This velocity increase creates a pressure drop that generates vacuum at the suction port, drawing liquid or gas additives into the water stream. The internal mixing vanes create thousands of microbubbles, dramatically increasing surface area for superior gas dissolution compared to conventional injection methods. As the jet diffuses toward the outlet, velocity reduces and flow resumes in a thoroughly mixed state with minimal energy loss. The ISO 878 Series operates over a wide pressure range and requires only minimal differential pressure to initiate suction. Ideal for chemical dosing, ozone injection, oxygen enrichment, and pH adjustment in reverse osmosis pretreatment, aquaculture, irrigation, and industrial process water applications. Material selection depends on chemical compatibility: polypropylene for cost-effective acid/alkali resistance, PVDF for high-temperature and ozone applications with NSF 61 and FDA compliance (Natural PVDF), or ECTFE for extreme alkaline environments above pH 10. Note that BSPT threads measure larger than their nominal size—25mm BSPT measures approximately 1.041 inches actual diameter, not 25mm.

💧 Mazzei venturi injectors require no electricity and have no moving parts, making them significantly more reliable and cost-effective than pump-fed injection systems. Minimal pressure differential is needed to generate vacuum—typically 10-20 PSI across the injector is sufficient for most chemical dosing applications.
Mazzei - ISO 878 Series - 25mm Male BSPT Inlet/Outlet Connections (0.50" Barbed/Male NPT Threaded Suction Port Cap) | Isopure Water