Air/Gas Operated Dosing Pump for High-Pressure Environments
An air operated metering pump is used to deliver precise and controlled dosing of chemicals in industrial processes. It is reliable and safe because it uses gas or air pressure to operate.
At NND Oil and Gas, this system is designed for accuracy, durability, and consistent performance across demanding industrial environments.
It is also commonly referred to as a pneumatic metering pump and is widely used as an industrial dosing pump across various applications. It is simple to operate, requires little maintenance, and delivers smooth and reliable performance even in high-pressure conditions.
Technical Specifications
| Parameter | Details |
|---|---|
| Series | PDP Series |
| Type | Single-Acting Reciprocating Plunger Type |
| Capacity Range | 0.025 to 75 LPH max. |
| Max. Discharge Pressure | Up to 150 kg/cm² |
| Material of Construction | SS304, SS316, SS316L |
| Capacity Adjustment | Micrometre adjustment and speed relay timer |
| Temperature Range | 30°C to 100°C |
Integrated Dosing System Features and Skid Configuration
This air operated metering pump system from NND Oil and Gas is supplied as a compact, skid-mounted unit for easy installation and operation.
- Air/natural gas-operated chemical dosing pump
- 400 / 500 / 1000 litre CS / SS tank with level gauge and insulation
- Strong skid frame suitable for rough industrial use
- Built-in calibration pot for accurate measurement
- Stainless steel piping with valves and fittings for leak-proof operation
- Fully tested at maximum pressure before delivery
- Pump and accessories housed in a secure enclosure
- Epoxy coating for corrosion resistance
- Designed to handle thick and viscous liquids, even in cold conditions
Optional Features:
- Tank heaters with temperature control (flameproof design available)
- Flow monitoring and measuring system with totaliser
- Flameproof and non-flameproof construction options
Pump Design and Performance Features
- Plunger type pump made from SS 316 material
- Safe and reliable operation
- Ceramic plunger (optional coated or hard-faced stainless steel)
- Flow control using stroke rate and micrometer adjustment
- Wide flow adjustment ratio (up to 100:1)
- Accuracy of ±1.0% or better
- Simple design with fewer parts for easy maintenance
- Pressure amplification ratio of 1:30
- Maximum pressure up to 150 kg/cm²
- Input air/gas supply: 2–9 kg/cm²
- Adjustable pressure control using an air regulator system
- Supplied with a built-in filter regulator and calibration pot
Standard Accessories and System Components
- Air/gas filter and pressure regulator
- Calibration pot
- Interconnecting piping
- Fully assembled within a cabinet
For applications focused on bulk fluid transfer rather than precise dosing, you can consider our Air Operated Double Diaphragm (AODD) Pumps for efficient handling of high-volume liquids.
Optional Accessories
- Dosing tank in carbon steel or stainless steel
- Insulated tank and piping
- Complete skid-mounted dosing system with instruments and flow meters
- Flameproof electrical heaters
- Flow rate monitoring system (flameproof / non-flameproof options)
Pump Models and Flow Capacity Options
| Model | Capacity Range (LPH) |
| PDP-1-2.5 | 0.025 to 2.5 |
| PDP-1-5.0 | 0.05 to 5.0 |
| PDP-1-10 | 0.015 to 10 |
| PDP-1-20 | 0.2 to 20 |
| PDP-1-30 | 0.3 to 30 |
| PDP-1-50 | 0.5 to 50 |
| PDP-1-75 | 0.75 to 75 |
Why Choose Our Pneumatic Metering Pump?
This air operated metering pump is intended to suit the needs of modern industries that require precise and consistent dosing. It provides smooth performance, simple control, and safe operation even in harsh operating circumstances.
If you need a reliable dosing solution, this system delivers consistent performance while keeping your operations simple and efficient. You can also explore our full range of pump solutions for different industrial requirements.
FAQs About Industrial Dosing Pump
1. What is an air operated metering pump used for?
An air operated metering pump is used to accurately dose chemicals or fluids in industrial processes. It is widely used in oil and gas, chemical processing, water treatment, and manufacturing applications where precise flow control is essential.
2. How does a pneumatic dosing pump work?
A pneumatic dosing pump operates using compressed air or gas to drive a reciprocating plunger. This mechanism allows controlled and consistent delivery of liquid, with adjustable flow rates using stroke length and speed settings.
3. Can this pump handle high-pressure and viscous liquids?
Yes, the pump is designed to handle high-pressure applications up to 150 kg/cm² and can effectively manage viscous or thick liquids. Its robust plunger design and strong materials ensure reliable performance even in demanding conditions.
4. How accurate is the dosing provided by this pump?
The pump offers high dosing accuracy of ±1.0% or better. It also features a wide flow adjustment ratio (up to 100:1), allowing precise control over small and large dosing requirements.
5. What factors should be considered when selecting a pneumatic metering pump?
You should consider flow rate requirements, discharge pressure, type of fluid (including viscosity and corrosiveness), operating temperature, and whether additional features like flameproof design or flow monitoring are needed.