HomeStore

Mazzei (MV-25 PP) .25" Metering Valve for .50" & .75" - Polypropylene

Product image 1

Mazzei (MV-25 PP) .25" Metering Valve for .50" & .75" - Polypropylene

The Mazzei MV-25A Polypropylene Metering Valve provides precise chemical injection control for .50" and .75" Mazzei injector systems. This updated replacement for the MV-25 features a streamlined design with .25" connections, delivering reliable flow adjustment in corrosive chemical injection applications.
SPECIFICATIONS

Mazzei MV-25A Technical Details

Model Number MV-25A (replaces MV-25)
Connection Size .25 inch
Compatible Injectors .50" and .75" Mazzei injectors
Material Polypropylene
Connection Type Compression fittings (no hose barbs)
Adjustment Variable metering (no dial reference points)
Application Chemical injection flow control
Chemical Resistance Excellent (polypropylene construction)
INSTALLATION & USE

Metering Valve Setup

  1. Install the MV-25A valve inline between your chemical supply line and the Mazzei injector suction port using .25" compression fittings
  2. Turn the valve adjustment knob counterclockwise to open and allow chemical flow to begin
  3. Gradually adjust the valve while monitoring injection rates to achieve desired chemical dosing levels
  4. Mark your optimal setting position on the valve body for future reference since dial points are no longer included
COMPATIBILITY

System Requirements

The Mazzei MV-25A metering valve is designed specifically for .50 inch and .75 inch Mazzei chemical and air injectors. This valve replaces the older MV-25 model and features updated compression-style connections instead of hose barbs. The polypropylene construction ensures compatibility with most liquid fertilizers, acids, and water treatment chemicals. Note that this updated version does not include the dial reference markings found on the original MV-25, so manual position marking is recommended for repeatable dosing.

🔧 Pro Tip: Use a permanent marker or tape to mark your optimal valve position on the body after dialing in your injection rate. Without factory reference points on the MV-25A, this simple step saves time during seasonal startups and prevents accidental over-dosing.
The Mazzei MV-25A Polypropylene Metering Valve provides precise chemical injection control for .50" and .75" Mazzei injector systems. This updated replacement for the MV-25 features a streamlined design with .25" connections, delivering reliable flow adjustment in corrosive chemical injection applications.
SPECIFICATIONS

Mazzei MV-25A Technical Details

Model Number MV-25A (replaces MV-25)
Connection Size .25 inch
Compatible Injectors .50" and .75" Mazzei injectors
Material Polypropylene
Connection Type Compression fittings (no hose barbs)
Adjustment Variable metering (no dial reference points)
Application Chemical injection flow control
Chemical Resistance Excellent (polypropylene construction)
INSTALLATION & USE

Metering Valve Setup

  1. Install the MV-25A valve inline between your chemical supply line and the Mazzei injector suction port using .25" compression fittings
  2. Turn the valve adjustment knob counterclockwise to open and allow chemical flow to begin
  3. Gradually adjust the valve while monitoring injection rates to achieve desired chemical dosing levels
  4. Mark your optimal setting position on the valve body for future reference since dial points are no longer included
COMPATIBILITY

System Requirements

The Mazzei MV-25A metering valve is designed specifically for .50 inch and .75 inch Mazzei chemical and air injectors. This valve replaces the older MV-25 model and features updated compression-style connections instead of hose barbs. The polypropylene construction ensures compatibility with most liquid fertilizers, acids, and water treatment chemicals. Note that this updated version does not include the dial reference markings found on the original MV-25, so manual position marking is recommended for repeatable dosing.

🔧 Pro Tip: Use a permanent marker or tape to mark your optimal valve position on the body after dialing in your injection rate. Without factory reference points on the MV-25A, this simple step saves time during seasonal startups and prevents accidental over-dosing.
$24.40

Original: $69.71

-65%
Mazzei (MV-25 PP) .25" Metering Valve for .50" & .75" - Polypropylene—

$69.71

$24.40

Description

The Mazzei MV-25A Polypropylene Metering Valve provides precise chemical injection control for .50" and .75" Mazzei injector systems. This updated replacement for the MV-25 features a streamlined design with .25" connections, delivering reliable flow adjustment in corrosive chemical injection applications.
SPECIFICATIONS

Mazzei MV-25A Technical Details

Model Number MV-25A (replaces MV-25)
Connection Size .25 inch
Compatible Injectors .50" and .75" Mazzei injectors
Material Polypropylene
Connection Type Compression fittings (no hose barbs)
Adjustment Variable metering (no dial reference points)
Application Chemical injection flow control
Chemical Resistance Excellent (polypropylene construction)
INSTALLATION & USE

Metering Valve Setup

  1. Install the MV-25A valve inline between your chemical supply line and the Mazzei injector suction port using .25" compression fittings
  2. Turn the valve adjustment knob counterclockwise to open and allow chemical flow to begin
  3. Gradually adjust the valve while monitoring injection rates to achieve desired chemical dosing levels
  4. Mark your optimal setting position on the valve body for future reference since dial points are no longer included
COMPATIBILITY

System Requirements

The Mazzei MV-25A metering valve is designed specifically for .50 inch and .75 inch Mazzei chemical and air injectors. This valve replaces the older MV-25 model and features updated compression-style connections instead of hose barbs. The polypropylene construction ensures compatibility with most liquid fertilizers, acids, and water treatment chemicals. Note that this updated version does not include the dial reference markings found on the original MV-25, so manual position marking is recommended for repeatable dosing.

🔧 Pro Tip: Use a permanent marker or tape to mark your optimal valve position on the body after dialing in your injection rate. Without factory reference points on the MV-25A, this simple step saves time during seasonal startups and prevents accidental over-dosing.
Mazzei (MV-25 PP) .25" Metering Valve for .50" & .75" - Polypropylene | Isopure Water