ASME B73.1 defines 27 pump sizes to fixed dimensions. Any compliant pump drops onto the same baseplate, nozzles and foundation bolts as the one it replaces.
An ANSI pump is horizontal, end-suction, single-stage and centreline-discharge. The standard fixes suction and discharge nozzle sizes and locations, mounting and baseplate dimensions, input shaft configurations and foundation bolt hole locations.
The core objective is dimensional interchangeability — plant operators can switch brands without redesigning pipework, which is why the standard has held since 1974.
Swap between manufacturers without touching the installation.
Standardised components mean shorter downtime.
A reliable alternative to API pumps where the duty permits.
Impeller options carry liquids with suspended solids.
Metallurgy tailored to aggressive liquid media.
Three other ranges that may suit the duty better.
Viscous, abrasive and shear-sensitive liquid media at consistent, low-pulsation flow.
Pulsation-free, low-shear transfer with flow independent of pressure.
High-volume output and durability in heavy-duty transfer duty.
Send a duty point, a failed part number, or a drawing. We will come back with a sized selection and a lead time.