---
title: Pump Repair, Selection & Fluid Handling Guides | EV Pump Blog | Chemical Processing
description: Chemical Processing | Practical pump guides, troubleshooting tips, and field insights from EV Pump's technicians. Written for maintenance managers and operators, not marketers.
image: https://evpmp.co/hubfs/Website%20Feature%20Images/Home%20Feature%20Image%20-%20Website%20Images%20-%20EV%20Pump%20(1).png
---

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- [About](https://evpmp.co/about-us) 
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## EV Pump & Equipment Blog

Filter by Tag Show All Case Studies Centrifugal Pumps Charge Pumps Chemical Injection Skids Chemical Processing Critical Spare Parts Custom Machining Diaphragm Pumps Diesel Engines Drilling Gasket Manufacturing Gear Pumps Grinder Pumps HDD High-Pressure High-Viscosity Injection Pumps Metallurgy Mud Pumps Oil & Gas Outsourced Service Work Peristaltic Pumps Positive Displacement Pumps Pump Design Repair & Rebuild Self-Priming Pumps Skids Submersible Pumps Trash Pumps Wastewater Well Servicing

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### Chemical Processing

[![Diagram of a solar chemical injection pump: solar panel wired to a charge controller and battery, driving a DC motor and plunger pump fed from a yellow chemical tank.](https://evpmp.co/hs-fs/hubfs/Blog%20Feature%20Images/High%20Pressure%20%26%20Solar%20Chemical%20Injection%20Pumps%20How%20to%20Spec%20Them%20(2)%20(1).png?width=1200&height=600&name=High%20Pressure%20%26%20Solar%20Chemical%20Injection%20Pumps%20How%20to%20Spec%20Them%20(2)%20(1).png)](https://evpmp.co/blog/high-pressure-solar-chemical-injection-pumps)

#### [High Pressure & Solar Chemical Injection Pumps: How to Spec Them](https://evpmp.co/blog/high-pressure-solar-chemical-injection-pumps)

Sep 15, 2026, 3:20:36 PM

Two questions come up on almost every chemical injection call I take. The first is "how much pressure does this pump really need to make?" The second...

[Oil & Gas](https://evpmp.co/blog/tag/oil-gas) [Injection Pumps](https://evpmp.co/blog/tag/injection-pumps) [Chemical Processing](https://evpmp.co/blog/tag/chemical-processing)

[Read More](https://evpmp.co/blog/high-pressure-solar-chemical-injection-pumps)

[![A chemical injection pump next to a chemical metering pump. ](https://evpmp.co/hs-fs/hubfs/AI%20Images/Chemical%20Injection%20Pump%20vs.%20Chemical%20Metering%20Pump.png?width=1200&height=600&name=Chemical%20Injection%20Pump%20vs.%20Chemical%20Metering%20Pump.png)](https://evpmp.co/blog/chemical-metering-pump-vs-injection-pump)

#### [Chemical Metering Pump vs. Injection Pump: How to Pick the Right One](https://evpmp.co/blog/chemical-metering-pump-vs-injection-pump)

Aug 26, 2026, 11:03:00 AM

Two people can describe the same pump and call it two different things. In the oilfield, it's an injection pump; in a water plant or a process...

[Oil & Gas](https://evpmp.co/blog/tag/oil-gas) [Injection Pumps](https://evpmp.co/blog/tag/injection-pumps) [Chemical Processing](https://evpmp.co/blog/tag/chemical-processing)

[Read More](https://evpmp.co/blog/chemical-metering-pump-vs-injection-pump)

[![Four types of injection pumps illustrated side by side — plunger, diaphragm, gear, and peristaltic — EV Pump & Equipment, Lafayette, LA](https://evpmp.co/hs-fs/hubfs/Blog%20Feature%20Images/injection_pump_types_featured_image.jpg?width=1200&height=600&name=injection_pump_types_featured_image.jpg)](https://evpmp.co/blog/what-is-an-injection-pump-types-uses-when-to-call-ev-pump)

#### [What Is an Injection Pump? Types, Uses, and When to Call a Specialist](https://evpmp.co/blog/what-is-an-injection-pump-types-uses-when-to-call-ev-pump)

Apr 14, 2026, 4:36:43 PM

Injection pumps are small, but they're doing critical work; metering the exact chemistry that keeps pipelines from corroding, wells from scaling, and...

[Oil & Gas](https://evpmp.co/blog/tag/oil-gas) [Injection Pumps](https://evpmp.co/blog/tag/injection-pumps) [Chemical Processing](https://evpmp.co/blog/tag/chemical-processing)

[Read More](https://evpmp.co/blog/what-is-an-injection-pump-types-uses-when-to-call-ev-pump)

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