Pumps - Iwaki America
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...
Sealless magnetic drive pumps are a type of pump that uses magnets to drive the impeller rather than a sealed shaft and bearings. This design eliminates the need for a mechanical seal, making them ideal for use in applications where a bearing or seal failure could release hazardous or toxic fluids. Centro’s selection of sealless magnetic drive pumps is available in various sizes and materials to suit your particular application. With our easy-to-use online purchasing system, you can be assured that you're getting the best possible pump for your money.
Metering pumps are positive displacement pumps designed to move a precise volume of liquid per revolution. They are often used in industrial and commercial applications to pump chemicals, lubricants, and other fluids. Metering pumps can be either solenoid or motor-driven, and Centro carries a complete online selection of both types of pumps. Solenoid-driven metering pumps are typically smaller and more compact than motor-driven pumps, making them ideal for limited-space applications. Motor-driven metering pumps are more powerful and can handle larger volumes of fluid. No matter what your application, Centro has the metering pump to meet your needs.
$4,296.96
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,213.97
Subject to factory lead times
$2,213.97
Subject to factory lead times
$2,331.27
Subject to factory lead times
$2,331.27
Subject to factory lead times
$2,448.56
Subject to factory lead times
$2,448.56
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,213.97
Subject to factory lead times
$4,296.96
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,213.97
Subject to factory lead times
$2,213.97
Subject to factory lead times
$2,331.27
Subject to factory lead times
$2,331.27
Subject to factory lead times
$2,448.56
Subject to factory lead times
$2,448.56
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,130.88
Subject to factory lead times
$2,213.97
Subject to factory lead times
- 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.
- The total head the pump must overcome: static lift + discharge head + pressure requirements + friction losses in pipe/fittings/valves/filters, adjusted for fluid density.
- 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.
- 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.
- 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).
- 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.
- VFD speed control is usually most efficient; throttling works but wastes energy; bypass recirculation may be needed to maintain minimum flow.
- Use viscosity-corrected curves or consider positive displacement; expect reduced flow/increased power and ensure suction piping supports high-viscosity feeding.
- Define solids size, concentration, hardness, and shape; choose solids-handling hydraulics, slower speeds, abrasion-resistant materials, and appropriate clearances.
- Select compatible metallurgy/coatings, control pH/chemistry, reduce velocity in corrosive service, manage solids, and use wear parts designed for abrasion.
- 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.