What info do I need to size a pump?

Flow (GPM) + total dynamic head (TDH), fluid details (chemistry, temp, solids/viscosity), suction conditions (NPSHa), desired materials, seal type, driver/voltage, connection sizes, and duty cycle.

What is TDH (Total Dynamic Head)?

The total head the pump must overcome: static lift + discharge head + pressure requirements + friction losses in pipe/fittings/valves/filters, adjusted for fluid density.

How do I choose a pump type (centrifugal vs positive displacement)?

Centrifugal for higher flow/low–moderate viscosity and smoother operation; positive displacement for high viscosity, accurate metering, higher pressures, or when flow must stay steady as pressure changes.

What’s the difference between ANSI and self-priming “trash” pumps?

ANSI process pumps are for clean/process fluids and standard chemical-duty applications; self-priming trash pumps are built to handle air entrainment and larger solids for dewatering/wastewater.

How do I select pump materials?

Match wetted materials to the fluid chemistry, temperature, and abrasiveness (e.g., 316 SS for corrosion resistance; ductile iron for general service; hardened materials/coatings for abrasion).

Can I run a centrifugal pump with a partially closed valve?

Often yes on the discharge side to control flow (within limits), but avoid deadheading too long (heat buildup); never throttle suction, use a valve only for isolation.

What’s the best way to control pump flow?

VFD speed control is usually most efficient; throttling works but wastes energy; bypass recirculation may be needed to maintain minimum flow.

How do I select a pump for viscous fluids?

Use viscosity-corrected curves or consider positive displacement; expect reduced flow/increased power and ensure suction piping supports high-viscosity feeding.

How do I select a pump for solids or slurry?

Define solids size, concentration, hardness, and shape; choose solids-handling hydraulics, slower speeds, abrasion-resistant materials, and appropriate clearances.

How do I prevent corrosion/erosion in pumps?

Select compatible metallurgy/coatings, control pH/chemistry, reduce velocity in corrosive service, manage solids, and use wear parts designed for abrasion.

What maintenance is most important for pump reliability?

Alignment, lubrication, seal support/flush checks, strainer cleaning, vibration/temperature monitoring, and verifying operation near BEP and above minimum flow.

Best Efficiency Point is where the pump runs most efficiently with lowest vibration; aim to operate near BEP to improve seal/bearing life and reduce energy cost.

Pumps - Pulsatron/Pulsafeeder

Industrial pumps move liquids from one place to another, whether you’re handling water, chemicals, or thick, heavy fluids. Most pumps fall into one of two main categories: positive-displacement pumps and cen...

Categories from Pulsatron/Pulsafeeder (3)

Solenoid Driven Metering Pumps

Solenoid driven metering pumps are precision devices used for accurate and controlled dispensing of fluids. These pumps utilize a solenoid-driven piston or diaphragm to deliver precise volumes of liquid, making them ideal for applications that require precise dosing, such as water treatment, chemical processing, and laboratory environments.

Peristaltic/Hose Pumps

Peristaltic pumps, also known as hose pumps, are positive displacement pumps that use a rotating squeezing motion to move fluids through a hose or tube. Peristaltic pumps are often used in applications where other types of pumps would be unable to function, such as when pumping viscous or shear-sensitive fluids. With a wide variety of peristaltic pump models, we have the perfect pump for your specific application. Centro carries a complete online selection of peristaltic pumps, including Peristaltic Chemical Metering Pumps, specially designed for corrosive or abrasive chemicals. Shop our selection of peristaltic pumps online today.

Motor Driven Metering Pumps

Motor-driven metering pumps deliver precise, reliable chemical dosing for demanding industrial applications, combining high flow capacity with consistent accuracy. Ideal for water treatment, chemical processing, and manufacturing, these pumps offer adjustable stroke length and motor speed to handle a wide range of fluid viscosities and pressures. Their robust construction ensures long-term durability, while optional features like integrated controllers and safety valves enhance process control and system protection.

Filter

In Stock Only

Filter

18 items

Sort by:

content loaded

Compare

Pulsatron/Pulsafeeder

LMA3TA-PTC1-XXX LMA3 Series MP - Electronic Metering Pumps

MPN:LMA3TA-PTC1-XXX

The Pulsatron Series MP is a true microprocessor controlled instrument for precise and accurate metering control. Packed with standard features, the Series MP include automatic control via 4-20mA or 20-4 mA inputs, external pace with stop feature and 16 character LCD display with support for English, French, and German languages.

$1,399.93$1,671.00

You save 16%

Available for Purchase

Subject to factory lead times

QTY:

Compare

Pumps - Pulsatron/Pulsafeeder

$1,399.93$1,671.00

$2,442.12$2,915.00

$2,024.91$2,417.00

$1,399.93$1,671.00

$2,442.12$2,915.00

$2,024.91$2,417.00

Orders & purchases

Divisions