PPH Venturi Injector
A PPH Venturi Injector is a device made from Polypropylene Homopolymer (PPH) that uses the Venturi principle to inject or mix chemicals, gases, or liquids into a flowing fluid stream by creating a pressure difference.The PPH Venturi Injector is a precision-engineered fluid device used to inject or mix liquids or gases into a pipeline system using differential pressure. Manufactured from Polypropylene Homopolymer (PPH), it offers excellent chemical resistance and mechanical durability, making it ideal for aggressive chemical environments.
The Venturi injector operates on the Venturi effect, where fluid velocity increases through a narrow throat, creating a vacuum that draws and mixes another fluid or gas. It is commonly used in chemical dosing, fertigation, water treatment, and industrial mixing processes.It is a self-operating injector that uses flow pressure to suck and mix another liquid or chemical into the pipeline without using a pump.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
PPH 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 / Property | Details |
| Material | Polypropylene Homopolymer (PPH) |
| Type | Venturi Injector / Chemical Dosing Device |
| Function | Injects or mixes liquids/gases into a pipeline using pressure difference |
| Working Principle | Venturi effect (pressure drop creates suction) |
| Design | Converging section → throat → diverging section with suction port |
| Connection Type | Threaded / Socket Weld / Flanged |
| Size Range | ½” to 2” (DN15–DN50), custom sizes available |
| Operating Pressure | Typically 1 to 10 bar (varies by model) |
| Max Pressure (General PP) | Up to ~20 bar at 20°C (design dependent) |
| Temperature Range | 0°C to 80–100°C |
| Suction Capacity | Depends on flow rate, pressure differential, and size |
| Flow Requirement | Requires continuous fluid flow for suction generation |
| Power Requirement | No external power (self-operating) |
| Installation Type | Inline (horizontal or vertical) |
| Standards | ISO / DIN (as per PPH piping systems) |
| Color | Natural / Grey / Black |
| Density | ~0.90–0.91 g/cm³ |
| Tensile Strength | ~30–35 MPa |
| Melting Temperature | ~160–165°C |
| Max Service Temp. | Up to ~100°C |
| Chemical Resistance | Excellent (acids, alkalis, fertilizers) |
| Water Absorption | Very low |
| Thermal Conductivity | Low (~0.22 W/m·K) |
| Structure | Semi-crystalline thermoplastic |
| Applications | Water treatment, fertigation, chemical dosing, industrial mixing |
Efficient Chemical Injection – Uses fluid pressure differential for suction without external energy.
Excellent Chemical Resistance – Withstands acids, alkalis, and corrosive media.
Non-Corrosive & Durable – PPH construction ensures long service life and resistance to scaling.
Compact & Lightweight – Easy to install in limited space and suitable for mobile systems.
Maintenance-Free Operation – No moving parts, reducing operational costs and downtime.
High Injection Accuracy – Delivers consistent dosing performance for critical applications.
Versatile Applications – Compatible with water, chemical solutions, and nutrient mixtures.
| Parameter | Details / Typical Range |
| Inlet Pressure | 1 – 10 bar |
| Outlet Pressure | Lower than inlet (to create differential) |
| Differential Pressure Required | ~20% – 30% of inlet pressure |
| Min. Operating Pressure | ~1 bar |
| Max. Operating Pressure | ~10 bar |
| Max. Design Pressure | Up to ~15–20 bar (material dependent) |
| Min. Differential for Suction | 0.5 – 1 bar |
| Recommended Differential | 20% – 30% of inlet pressure |
| Higher Differential | Increases suction capacity |
| Size Range: ½” – 1” | 1 – 8 bar pressure range |
| Size Range: 1” – 2” | 2 – 10 bar pressure range |
| Size Range: Above 2” | 3 – 10 bar pressure range |
| Temperature (°C) | Pressure Capacity (%) | Approx. Max Pressure (Bar) |
| 20°C | 100% | 10 bar |
| 40°C | ~80% | 8 bar |
| 60°C | ~60–70% | 6–7 bar |
| 80°C | ~40–50% | 4–5 bar |
| 100°C | ~20–30% | 2–3 bar |
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 PPH Venturi Injector
1. No External Power Required
- Operates using the Venturi principle (pressure difference)
- Eliminates need for electricity or pumps
2. Low Maintenance
- No moving parts, so minimal wear and tear
- Reduces maintenance costs and downtime
3. Excellent Chemical Resistance
- PPH material resists acids, alkalis, fertilizers, and corrosive fluids
- Ideal for chemical dosing applications
4. Corrosion & Rust Free
- Non-metallic construction prevents rust and corrosion
- Suitable for harsh industrial environments
5. Lightweight & Compact Design
- Easy to install and handle
- Requires less installation space
6. Cost-Effective Solution
- Lower initial cost compared to mechanical dosing systems
- Saves energy costs (no power consumption)
7. Efficient Mixing & Injection
- Provides uniform mixing of chemicals and fluids
- Ensures consistent dosing performance
8. Wide Application Range
- Suitable for:
- Water treatment plants
- Fertigation and irrigation systems
- Chemical processing industries
- Industrial fluid mixing
9. Simple Installation
- Can be installed inline in piping systems
- Compatible with threaded, socket, or flanged connections
10. Safe Operation
- No electrical components → safer in hazardous environments
11. Durable & Long Service Life
- Resistant to chemical attack and environmental stress
- Ensures long-lasting performance
12. Adjustable Performance
- Injection rate can be controlled by adjusting pressure and flow
Types of PPH Venturi Injector
1. Inline Venturi Injector (Standard Type)
- All three outlets are of same diameter
- Used for uniform flow distribution
- Most commonly used type
2. Bypass (Parallel) Venturi Injector
- Installed in a parallel line (bypass loop)
- Uses valves to create pressure difference
- Improves efficiency without major pressure loss in main line
3. Adjustable Flow Venturi Injector
- Equipped with control valve or throttle system
- Allows adjustment of suction rate and chemical dosing
4. Injector with Booster Pump
- Uses an external pump to create pressure differential
- Suitable for low-pressure systems
5. Threaded Venturi Injector
- Comes with BSP/NPT threaded ends
- Easy installation and removal
- Common in small and medium systems
6. Socket Weld Venturi Injector
- Connected using socket fusion welding
- Provides strong, permanent, leak-proof joints
- Used in industrial piping
7. Flanged Venturi Injector
- Equipped with flanged ends for bolting
- Suitable for large pipelines and heavy-duty applications
8. Multi-Port / High Efficiency Venturi Injector
- Designed with enhanced mixing chambers or multiple suction points
- Provides better mixing efficiency and suction performance
9. Custom / Fabricated Venturi Injector
- Specially designed for specific flow rates and applications
- Used in chemical plants and process industries
Applications of PPH Venturi Injector
Process Industry
High Purity Applications
Electronic Industry
Electrical Industry
Semi-conductors Industry
Pharmaceutical Industry
Solar power panels
Sugar Industry
Paper & Pulp Industry
Nuclear Power Industry
Automotive Industry
DI water plants
Why Choose Petron Thermoplast?
Petron Thermoplast specialises in manufacturing world-class sewerage & drainage systems for commercial applications and PPH systems that find applications in industrial and infrastructure projects. As a leading PPH Venturi Injector manufacturer in India, Petron Thermoplast also serves the sector through products in the borewell and chemical categories. The world’s largest manufacturers and inventors of PPH compounds give us a sharp competitive edge amongst Injector companies in India, as we exclusively bring Petron Thermoplast [PPH systems] to the market – the first choice globally for portable Chemical applications. Petron Thermoplast’s robust distribution network, combined with best-in-class technology, is set to create a strong & sustainable partnership in the chemical Industry.
