UPVC Venturi Injector
The UPVC Venturi Injector is a precision-engineered device designed to inject chemicals or nutrients into a fluid stream using the principle of differential pressure. Made from high-quality Unplasticized Polyvinyl Chloride (UPVC), this injector is lightweight, corrosion-resistant, and ideal for use in irrigation, fertigation, and water treatment systems. It operates without external power, relying solely on fluid flow to create suction for additive injection.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
UPVC Venturi Injector Details
G: Nominal Thread Size (Gas thread/BSP).
L: Total Length of the component.
L1: Body Length or Internal Length.
h: Socket depth or specific offset height.
H: Total Height or handle clearance height.
| G | L | L1 | h | H |
| 1/4” | 113 | 88 | 16 | 43 |
| 1/2” | 139 | 110 | 28 | 63 |
| 3/4” | 157 | 111 | 28 | 63 |
| 1” | 225 | 181 | 37 | 88 |
| 1-1/4” | 230 | 185 | 37 | 88 |
| 1-1/2” | 257 | 208 | 37 | 89 |
| 2” | 295 | 228 | 40 | 70 |
| Parameter | Details |
| Material | Unplasticized Polyvinyl Chloride (UPVC) |
| Operating Principle | Venturi Effect (pressure differential creates suction) |
| Size Range | 15 mm to 63 mm (½” to 2”) |
| Connection Type | Threaded (BSP) / Socket |
| Operating Pressure | 1.5 to 6 bar |
| Flow Requirement | Depends on model and pipeline design |
| Suction Capacity | 20 to 300 LPH (varies by size/model) |
| Temperature Range | 0°C to 60°C |
| Injection Type | Liquid–liquid / liquid–gas mixing |
| Color | Grey (standard) |
| Density (Material) | Approx. 1.38 – 1.45 g/cm³ |
| Chemical Resistance | Excellent resistance to acids, alkalis, and fertilizers |
| Working Medium | Water, fertilizers, chemicals |
| Standards | ISO / DIN |
| Installation Type | Inline installation in pipeline |
| Power Requirement | Not required (operates on fluid pressure) |
| Maintenance | Low (no moving parts) |
| Applications | Irrigation, fertigation, water treatment, chemical dosing |
Efficient Chemical Injection: Utilizes fluid pressure to draw in fertilizers, chemicals, or additives.
Corrosion & Chemical Resistant: Suitable for aggressive liquids and fertilizers.
No External Power Required: Operates entirely on fluid dynamics.
Compact and Lightweight: Easy to install and integrate into existing pipelines.
Low Maintenance: Simple design with minimal moving parts ensures long service life.
High Suction Capability: Delivers accurate dosing even at low pressure differences.
| Venturi Size (Inch) | Nominal Flow Range (m³/hr) | Max Working Pressure (bar) | Max Working Pressure (psi) | Test / Burst Pressure (bar) |
| ½” | 0.3 – 1.0 | 6 | ~87 | 9 – 10 |
| ¾” | 0.6 – 2.0 | 6 | ~87 | 9 – 10 |
| 1″ | 1.0 – 3.5 | 6 | ~87 | 9 – 10 |
| 1½” | 3.0 – 10 | 6 | ~87 | 9 – 10 |
| 2″ | 6.0 – 20 | 6 | ~87 | 9 – 10 |
| 2½” | 10 – 35 | 4 – 6 | 58 – 87 | 6 – 9 |
| 3″ | 20 – 60 | 4 | ~58 | 6 |
Custom Product Manufacturing Available
If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.
Benefits of Using UPVC Venturi Injector
No moving parts
UPVC Venturi injectors have a simple design without any moving parts, which reduces the chances of mechanical failure and ensures that maintenance is low.
Self-priming
UPVC Venturi Injector is the suction created by the Venturi effect that allows the injector to prime itself automatically; the need for an external priming mechanism is eliminated.
Passive operation
UPVC Venturi injectors operate passively, relying solely on the fluid flow energy to induce chemical dosing. Upvc venturi injector reduces the need for external power sources or complicated system control.
Proportional dosing
The chemical dosing rate is proportional to the water fluid flow rate, ensuring a consistent chemical concentration in the treated water fluid.
High mixing efficiency
The turbulence created by the Venturi effect promotes the mixing of the chemical with the water fluid, increasing the efficiency of the chemical treatment process.
Types and Uses of UPVC Venturi Injector
Inline Venturi Injector
An UPVC inline Venturi injector installed directly in the main pipeline. It uses the flow velocity of the pipeline to create a pressure drop at the throat, which induces the suction of fertilizer and chemicals. It is simple in construction but causes a permanent pressure loss in the line.
Bypass Venturi Injector
A UPVC bypass Venturi injector is installed on a secondary bypass line parallel to the main pipeline. The pressure difference between the inlet and outlet is controlled using valves, allowing better suction regulation, and disturbance is minimal to the main flow.
Fixed-Suction Venturi Injector
A UPVC fixed-suction Venturi injector has no adjustment mechanism for suction rate. The injection rate depends solely on the flow rate and pressure differential across the venturi. It is economical and maintenance-free.
Adjustable-Suction Venturi Injector
A UPVC adjustable-suction Venturi injector is equipped with a needle valve and control valve at the suction port, allowing regulation of chemical and fertilizer injection for precise dosing rate.
Threaded UPVC Venturi Injector
A UPVC threaded Venturi injector has threaded end connections for easy installation and removal. It is commonly used for small-diameter pipelines and portable systems.
Flanged / Socket-End UPVC Venturi Injector
A UPVC flanged, or socket-end Venturi injector used flanged joints or solvent-cement sockets for permanent, leak-proof installation. These are preferred for larger pipe sizes and higher flow applications.
Why Choose Petron Thermoplast?
In the field of water, fluid, and chemical injection technology, Petron Thermoplast Company played a leading role, known for innovation and reliability. Petron Thermoplast has engineered high-performance UPVC venturi injectors that maximize mixing efficiency and durability. Their design is patented to ensure consistent performance across a wide range of flow rates and pressures.
Petron Thermoplast UPVC venturi injectors are particularly favored in chemical treatment and agricultural applications due to their precision, long service life, and compatibility with corrosive water.
By harnessing the Venturi effect, these devices offer a reliable, energy-efficient method for fluid injection without the need for pumps or electricity. With companies like Petron Thermoplast pushing the technology forward, the future of fluid injection remains efficient, sustainable, and powerful.
No power required
It has a working pressure differential (Venturi effect).
- No electricity, no moving parts
- Lower operating and maintenance costs
Good dosing accuracy
- Upvc Venturi Injector is consistent suction rate when the pressure is stable
- Suitable for controlled chemical injection systems
UPVC Pipe Fittings
We offer UPVC Pipe Fittings products in all standard sizes and provide complete customization options to meet your specific project requirements across our entire product range.
