How is flow adjusted in the Plunger Type Dosing Metering Pump?

Flow is adjusted using a variable stroke mechanism with a single interlocking stroke setting ranging from 10% to 100%, providing a linear relationship between stroke setting and discharge rate.

Plunger Type Dosing Metering Pump | HIS Pumps and Systems

Q: What accuracy can I expect from the Plunger Type Dosing Metering Pump?

The Plunger Type Dosing Metering Pump delivers steady-state metering accuracy of ±1% of pump output, with repeatability better than ±2.5% of the set point, ensuring precise and reliable chemical dosing.

Q: What flow rates and pressures does this pump support?

The pump supports flow rates ranging from 0 to 10,000 liters per hour and can operate at discharge pressures up to 200 kg/cm², making it suitable for high-pressure industrial applications.

Q: Which materials are available for wetted parts?

Available materials of construction include AISI 304, AISI 316, Monel, Alloy 20, Hastelloy B, Hastelloy C, Titanium, Polypropylene, and GFT. Material selection depends on the chemical compatibility and process conditions.

Q: Is this pump suitable for offshore methanol injection?

Yes, the Plunger Type Dosing Metering Pump is specifically designed for high-pressure offshore applications, including methanol injection, corrosion inhibitor dosing, and oxygen binder injection in harsh environments.

Q: Can I run multiple pumps with a common drive?

Yes, the pump is available in simplex and multiplex configurations with a common drive, allowing scalable installations and synchronized operation across multiple dosing points.

Introduction :

The Plunger Type Dosing Metering Pump from HIS Pumps and Systems delivers industry-leading accuracy and durability for high-pressure chemical injection. With a variable stroke mechanism and positive plunger return, it provides steady-state metering accuracy of ±1% and repeatability better than ±2.5% of set point, making it ideal for offshore methanol injection, corrosion inhibitor dosing, and harsh chemical transfer at scale.

Features & Benefits :

✅ Precision & Repeatability – Variable stroke + positive plunger return ensures a linear control-to-output relationship and repeatability < ±2.5%.
✅ Exceptional Accuracy – Steady-state metering accuracy of ±1% of pump output.
✅ High Capacity – Flow range from 0 to 10,000 L/h.
✅ High Pressure Performance – Discharge pressures up to 200 kg/cm².
✅ Corrosion-Resistant Materials – Multiple material options (AISI 304/316, Monel, Alloy 20, Hastelloy B/C, Titanium, Polypropylene, GFT) for the harshest chemicals.
✅ Flexible Configurations – Simplex and multiplex arrangements with common drive; single interlocked stroke setting from 10%–100%.
✅ Low NPSHR – Designed for reliable suction conditions and remote installation.

Specifications :

Specification	Details
Flow Rate	0 – 10,000 LPH
Discharge Pressure	Up to 200 kg/cm²
Metering Accuracy	±1% of output
Repeatability	±2.5%
Stroke Adjustment	10% – 100%
Pump Configuration	Simplex / Multiplex

Application :

Offshore high-pressure injection (methanol dosing, hydrate prevention)
Corrosion inhibitor injection for pipelines and platforms
High-pressure toxic/harsh chemical injection systems
Oxygen binder dosing and other specialty chemical injection points
Remote and extreme environments where reliability matters

Why Choose HIS Pumps and Systems? :

✔ Rugged materials and precision mechanics engineered for long service life.
✔ Modular configurations (Simplex/Multiplex) to meet demanding process requirements.
✔ Consistent dosing performance even in remote offshore or high-pressure environments.
✔ Field maintainability ensuring minimal downtime.

Frequently Asked Questions :

What accuracy can I expect from the Plunger Type Dosing Metering Pump? Expect steady-state metering accuracy of ±1% of pump output and repeatability better than ±2.5% of the set point.

What flow rates and pressures does this pump support? Flow rates from 0 to 10,000 L/h and discharge pressure up to 200 kg/cm².

Which materials are available for wetted parts? Multiple MOC options: AISI 304, AISI 316, Monel, Alloy 20, Hastelloy B, Hastelloy C, Titanium, Polypropylene, GFT — select depending on chemical compatibility.

Is this pump suitable for offshore methanol injection? Yes — it’s explicitly designed for high-pressure offshore applications, including methanol dosing, corrosion inhibitor injection, and oxygen binder dosing.

Can I run multiple pumps with a common drive? Yes — simplex and multiplex arrangements with a common drive are available for scalable installations.

How is flow adjusted? Flow is controlled by a variable stroke mechanism with a single interlocking stroke setting (from 10% to 100%) for a linear relationship between setting and discharge.