Adjustable Venturi Fertilizer Injectors for Drip Irrigation 1

Adjustable Venturi Fertilizer Injectors for Drip Irrigation 2

Adjustable Venturi Fertilizer Injectors for Drip Irrigation 3

Adjustable Venturi Fertilizer Injectors for Drip Irrigation 4

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Adjustable Venturi Fertilizer Injectors for Drip Irrigation

Place of Origin:

China

Brand Name:

HYRT

Model Number:

Venturi Fertilizer Injector

Samples:

$2316.45/piece | Min. order : 1 piece

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-500000(pieces):30(days),>500000(pieces):To be negotiated(days)

Customization:

Customized packaging (Min. Order: 50000 sets)

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Diametera

32mm-110mm

Max Qtt.

1200 l/h

working method

Siphon

Threaded

Female thread

Max Pressure

1bar

Max Discharge

20m3/h

Product Name

Fertilizer Venturi Fertilizer Injectors Price

Diameter

32mm-110mm

Packing

Single in plastic bag and carton

Usage

Water-saving Drip Irrigation System

Place of Origin

Shandong, China

Type

Other Watering & Irrigation

Material

Plastic

Application

Farm, Agricultural, Irrigation, Watering Irrigation

Accurate dosing, rugged construction

Our adjustable Venturi injector delivers precise Fertilizer dosing for drip irrigation, letting growers control injection rate by valve angle to save nutrients, water and labor while ensuring uniform crop feeding. Its compact inline Venturi shape with parallel tube and siphon design, durable high-quality materials and multiple diameters (32–63 mm) provide reliable performance across greenhouse, landscape and agricultural systems. Shipped in professional eco-friendly bags or customized cartons with a 7–15 day lead time, the product includes free samples, OEM options and flexible payment and shipping terms to simplify procurement and installation.

Here are three four-word subtitle options:

The adjustable Venturi injector is built around a Venturi throat and siphon tube with a parallel-mounted control valve, offered in common drip sizes (32/50/63 mm) and rated for field pressures up to 8 bar, providing a durable, easy-to-install unit for integration into drip irrigation mains. By varying the valve angle to change inlet pressure and flow, the injector precisely meters Fertilizer via suction, delivering uniform dosing that reduces chemical waste and simplifies on-site calibration. Its siphon-based, power-free operation, low-maintenance construction and compatibility with micro-sprinklers, drippers and LDPE piping make it a practical, water‑saving dosing solution for greenhouses, orchards and landscape systems.

Precision Adjustable Venturi Injectors

The adjustable Venturi injector for drip irrigation installs a control valve in the parallel feed line so water flowing through the venturi and siphon tube draws in Fertilizer for precise dosing. Flow rate and injection strength are set by the valve angle and the units come in sizes from 1" (32 mm) to 2" (63 mm) with maximum discharge up to 20 m3/h and pressure rating to 8 bar. Built for durability and easy installation, the injector is compatible with micro-irrigation components like filters, drippers and LDPE piping for reliable, adjustable fertilization.

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Precise, Adjustable, Efficient, Durable

Developed by a precision-irrigation team using durable, corrosion-resistant materials and simple assembly, the adjustable Venturi Fertilizer injector is engineered for reliable, low-maintenance performance in drip irrigation systems. Its adjustable Venturi nozzle and calibrated flow control provide accurate, water-powered metering across a wide range of concentrations, while a no-moving-parts design ensures long service life and easy cleaning. Key features and advantages include energy-free dosing, simple on-site calibration, compatibility with standard drip lines, uniform nutrient distribution that reduces waste and boosts crop performance, and cost-effective, scalable installation.

Material introduction

The adjustable Venturi fertilizer injectors are molded from high‑strength, UV‑stabilized engineering plastics (e.g., PVC/ABS blends) to withstand sunlight, abrasive particles and chemical exposure in drip irrigation systems. Corrosion‑resistant compression fittings and selectively used stainless steel or brass parts, together with EPDM/NBR seals, provide chemical compatibility and reliable, leak‑free dosing of fertilizer. Materials are chosen for compatibility with LDPE tubing and micro‑irrigation components to deliver long service life, easy maintenance and consistent suction across the specified pressure and flow ranges.

◎ UV Stabilized Plastics

◎ Corrosion Resistant Inserts

◎ Lightweight Sturdy Materials

FAQ

What is an adjustable Venturi fertilizer injector and how does it work in a drip irrigation system?

An adjustable Venturi injector is a self‑aspirating device that uses the Venturi effect to draw concentrated fertilizer or chemicals into a pressurized irrigation line. Water flowing through a constricted section creates low pressure that pulls the additive through an intake port. A built‑in adjustment (needle, screw or valve) changes the suction strength and therefore the injection ratio, allowing proportional dosing without external power.

In which application scenarios are Venturi injectors most useful?

They are ideal for fertigation and chemigation in greenhouses, nurseries, orchards, vineyards, vegetable farms and landscape irrigation where continuous, low‑volume dosing is required. Typical uses include dissolvable NPK fertilizers, micronutrients, pH adjustment (acidification), wetting agents and some pesticides compatible with the materials. They’re best for systems with steady pressure and flow such as mainlines, manifolds or pump discharge lines feeding drip laterals.

How should I install a Venturi injector for reliable operation?

Install it in a pressurized section of the mainline where there is stable flow and adequate pressure (consult the injector’s specs for minimum operating pressure). Fit it after the main filter and before distribution laterals. Include a pressure regulator if system pressure exceeds the injector’s rating, and always use a backflow prevention device or non‑return valve between the injector and the supply tank to prevent contamination. Mount per the manufacturer’s orientation instructions and secure fittings to avoid leaks.

How do I adjust and calibrate the injection rate?

Use the injector’s adjustment screw or knob to change the suction; finer settings lower the injected dose. Calibrate by measuring the volume of solution drawn into a calibrated container over a fixed time at your typical flow and pressure, then calculate the percent injection (injected volume ÷ total flow volume). Repeat calibration whenever system pressure, flow or concentrate changes. Monitoring EC and crop response helps confirm correct dosing.

What chemicals and fertilizers can I safely inject, and what should I avoid?

Water‑soluble fertilizers, chelated micronutrients and many compatible acids/acidifiers are commonly used. Avoid syrups, slurries, undissolved solids and highly viscous or abrasive suspensions that can clog the injector. Also be cautious with corrosive or oxidizing chemicals (e.g., concentrated acids, chlorine solutions) unless the injector materials are rated for them—check material compatibility (PVC/PP/PVDF, seals) in the product datasheet. Always dilute concentrated products per label instructions and flush the injector after use.

What routine maintenance and troubleshooting steps should I follow?

Regularly clean and inspect the injector and its strainers/screens, and keep the upstream filter well maintained. If injection stops or falls, check for clogged nozzle/strainer, insufficient pressure/flow, air leaks on suction lines or blocked intake hoses. Address leaks by tightening or replacing seals. Flush the device periodically to remove deposits and winterize or store dry if temperatures will freeze. Replace worn O‑rings and consumable parts per the manufacturer’s schedule.

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