Dosatron - D132 MegaFlo Injectors - 132 GPM (3 in) (HORT)

Brand: Dosatron

The Dosatron D132 series delivers water-powered proportional injection at up to 132 GPM on 3 in mains, part of the MegaFlo line. Each unit runs on line pressure alone, injecting concentrate in fixed proportion to incoming water with no electricity, no metering pump, and no batch tanks. Dose accuracy holds through changes in supply pressure and flow.

Built for the head of commercial irrigation systems, nurseries, and large controlled-environment facilities, the D132 works with soluble fertilizers, acids, wetting agents, insecticides, fungicides, and algicides, as well as disinfection chemistry including chlorine, chlorine dioxide, and peracetic acid. It is offered across several dilution ranges and seal materials so the unit can be matched to both the required injection ratio and the chemistry being dosed.

Available Options

• 0.1-1% (1:1000-1:100) 3 in Viton (FKM) Seals - Bypass [D132MZ1BPVFII]
• 0.1-1% (1:1000-1:100) 3 in Kalrez (FFKM) Seals - Bypass [D132MZ1BPVFKII]
• 0.02-0.2% (1:5000-1:500) 3 in Aflas Seals - Bypass [D132MZ5000BPAFII]
• 0.02-0.2% (1:5000-1:500) 3 in Kalrez (FFKM) Seals - Bypass [D132MZ5000BPVFKII]
• 0.003-0.03% (1:30000-1:3000) 3 in Kalrez (FFKM) Seals - Bypass [D132MZ30000BPVFKII]

Specifications

• Flow range: 35.2 to 132 GPM
• Connection: 3 in NPT
• Dilution ranges: 1:30000-1:3000, 1:5000-1:500, and 1:1000-1:100
• Seal materials: Viton (FKM), Aflas, Kalrez (FFKM)
• Built-in bypass (BP) on every model
• Dose scale: percentage and ratio (HORT); union not included

Key Features

• Water-powered proportional dosing, no electricity required
• Dosing accuracy holds through supply pressure and flow variation
• Built-in bypass for clear-water flushing without pulling the unit
• Dilution ranges down to 1:30000 for low-rate disinfection duty
• Handles fertilizers, acids, wetting agents, and oxidizing sanitizers
• Field-serviceable; seal and rebuild kits available

HORT vs Hydro Versions

This listing covers the HORT (horticulture) build. Compared to the Hydro (HY) build of the same injector, the dose setting is marked in percentage and ratio rather than ml/gal, and no union is included. Every D132 model listed here ships with a built-in bypass for clear-water flushing.

Seal Selection

After dilution range, seal material is the most important choice you make. The seal is the only part of the injector in constant contact with undiluted concentrate, and running the wrong elastomer is the single most common cause of early injector failure.

• Viton (FKM) - the general-purpose default. Suited to soluble fertilizers, micronutrients, pH-down acids, wetting agents, and most neutral to mildly acidic feeds.
• Aflas - for alkaline chemistry. Specify for pH-up, potassium hydroxide, liquid lime, carbonates, and hypochlorite sanitizers, which swell and harden Viton over time.
• Kalrez (FFKM) - the broadest chemical resistance available. Specify for peracetic acid (PAA), hydrogen peroxide blends, chlorine dioxide, and strong oxidizers such as ZeroTol and SaniDate, or where one unit has to run mixed chemistries.

If a single injector will see more than one chemistry, specify to the most aggressive of them. Replacement seal kits and full rebuild kits are stocked for every model listed here.

Service and Maintenance

These injectors are field-serviceable and designed to be rebuilt rather than replaced. Routine service is a seal kit; a full rebuild kit restores the motor and piston assembly. Install a strainer ahead of the unit and flush after dosing aggressive chemistry to get full service life.

Ideal Applications

• Head-of-system commercial fertigation
• Nursery and field irrigation mains
• Large controlled-environment facilities
• Chlorine, chlorine dioxide, and peracetic-acid injection (Kalrez)