Selection guides and application notes for metering pumps, dosing systems and industrial fluid handling.
AODD pumps can generally run dry for a limited time, pass solids and handle viscous fluids, but each capability has model-specific limits involving dry-run duration, particle passage, viscosity derating and suction conditions.
Use an immersion drum pump for mobile transfer of water-like liquids, consider an AODD pump for fixed suction lines or solids, and evaluate a progressive-cavity pump for medium-to-high viscosity and shear-sensitive products.
The 9900 handles flow, pH/ORP and conductivity, but pH electrodes require a separate 2751, conductivity needs a 2850 or dedicated module, and the 4–20 mA versions of the 2850 are incompatible outright.
A complete dosing system uses the metering pump as actuator, GF piping and valves as the fluid boundary, Signet instruments for feedback, and a transmitter or PLC for control. This guide covers the main interfaces.
All five models share ±0.5% repeatability and ±1% linearity, so accuracy is not the deciding factor. Selection comes down to three independent axes: power supply, output signal and body material.
Insertion paddlewheel sensors need at least 0.5 inch pipe, which dosing branches often do not have. GF in-line sensors 2000, 2507 and 2100 work down to 1/4 inch tubing and can verify actual metering pump output.
Graco Husky AODD selection must account for chemical compatibility, viscosity, solids, actual flow and discharge pressure, air supply and connections—not merely port size or maximum free-flow capacity.
Select a Lutz drum pump by checking flammability, viscosity and chemical compatibility first, then flow, head, container depth and available power. This guide compares standard, explosion-proof and progressive-cavity options.
Pump material selection must account for every fluid component and concentration, temperature, pressure, abrasion, flammability and cleaning medium. This guide compares five common construction materials and their limitations.
An overview of packaged chemical dosing systems and their components, plus 11 key operating precautions for safe, reliable day-to-day use, including dosing metering pump care.
An explanation of NPSH for metering pumps, including the difference between NPSHR and NPSHA, the NPSHA calculation formula, and practical ways to prevent cavitation.
An overview of how a wastewater treatment plant works, covering preliminary treatment, biological treatment, secondary clarification, tertiary (advanced) treatment, and sludge handling.
A comparison of plunger pumps and diaphragm pumps, focusing on the key differences in their liquid ends, sealing methods, wear behavior, and maintenance intervals.
The two most common ways to adjust a metering pump's flow rate are stroke-length adjustment, which offers high precision, and stroke-frequency adjustment, which responds quickly and flexibly.
Packaged chemical dosing systems play a critical role across many industries — from water treatment and chemicals to pharmaceuticals, oil production, electroplating, and food and beverage.
The Milton Roy PRIMEROYAL metering pump series earns its reliability from rugged, field-proven construction and a modular design, delivering precise dosing and long service intervals across demanding industrial processes.
Magnetic drive pumps eliminate dynamic seals for fully leak-free operation. Discover their advantages for handling hazardous, toxic, corrosive, and high-temperature media.
A packaged chemical dosing system protects circulating water loops from scaling, corrosion, and biofouling. Follow this step-by-step guide to installing one correctly.
Key precautions for operating a self-priming magnetic drive pump correctly: avoid running dry, keep flow, head, and suction lift within rated limits, fit an inlet strainer, and watch for cavitation.
Compare the main ways to adjust a metering pump's flow during operation: bypass loops, motor speed (VFD) control, and stroke-length adjustment, with the trade-offs in accuracy and energy use.
Metering pumps deliver fluid through reciprocating motion, producing a pulsating flow rather than a steady one. Learn how peak instantaneous flow affects piping and how a pulsation dampener helps.
Air-operated diaphragm pumps are safe, self-priming, and available in many materials. This guide explains why the diaphragm stops moving, how to diagnose it from the muffler, and common startup faults.
A metering pump is a reciprocating positive-displacement pump with flow adjustable from 0 to 100%. This article explains the construction and working principle of the motor-driven metering pump.