XMA3G25E 3.0 GPM 2500 PSI | 1750 RPM 5/8″ shaft pump

Annovi Reverberi XMA3G25E-F33 Triplex Pump | 3.0 GPM 2500 PSI F33 NEMA 56C 1750 RPM

XMA3G25E-F33 — the Annovi Reverberi Series 178 XMA commercial
triplex plunger pump delivering 3.0 GPM at 2,500 PSI at a
slow-speed 1,750 RPM through an F33 NEMA 56-C flange
and 5/8-inch hollow E-version electric shaft for direct coupling
to standard NEMA 56-C electric motors — engineered for vehicle and fleet washing,
outdoor surface maintenance, residential and light commercial pressure washing,
equipment wash bays, workshop floors, and contractor portable electric systems
where a compact, 15-lb commercial triplex pump delivers serious 3.0 GPM
performance at 2,500 PSI from a slow-speed direct electric motor platform.
At the heart of every XMA3G25E-F33 is Annovi Reverberi’s
dual redundant packing system — the forged brass head double
gasket sealing architecture standard across the entire XM Series 178 family,
deploying primary and secondary packing stages so that early seal wear produces
a telltale weep warning rather than sudden pressure loss or crankcase
contamination. Backed by a 5-year commercial warranty with
AR North America’s nationwide U.S.-based service centers and
domestic WSHPWR fulfillment.

XMA3G25E-F33 Key Specifications

Performance, Drive & Construction — AR Series 178 XMA Platform

• Model: Annovi Reverberi XMA3G25E-F33
• Series: 178 (XMA) — Commercial
• Flow Rate: 3.0 GPM
• Maximum Pressure: 2,500 PSI
• EBHP: 5.0
• Operating Speed: 1,750 RPM — slow-speed
  design; less than half the cycle rate of 3,400 RPM
  direct-drive alternatives at equivalent output
• Bore: 15 mm | Stroke: 13.2 mm |
  CSID Stamp: 3
• Weight: 15 lbs
• Shaft: 5/8-inch hollow E-version electric
  shaft — standard NEMA 56-C output
  shaft diameter
• Flange: F33 NEMA 56-C — direct coupling
  to compatible TEFC and standard NEMA 56-C
  electric motors with 5/8-inch
  output shaft
• Packing System: Dual redundant —
  primary and secondary stages standard across
  all XM Series 178 pumps
• Manifold: Forged brass
• Connecting Rods: Aluminum alloy
• Plungers: One-piece ceramic
• Valves: Heat-treated stainless with
  maintenance plug access
• Crankcase: Die-cast aluminum,
  oil-bath lubrication
• Bearings: Oversized
• Inlet: 1/2-inch female |
  Discharge: 3/8-inch female
• Max Water Temperature: 140°F
• Oil Capacity: 14.5 oz
• Warranty: 5-year commercial —
  U.S.-based service centers,
  domestic WSHPWR fulfillment

Standard XM Series 178 Package

Every XMA3G25E-F33 Ships Complete — Nothing Extra to Source

Every pump across the AR XM Series 178 family ships with the same standard
factory package: break-in oil pre-filled in the crankcase,
vented dipstick for pressure control and oil level access,
oil sight glass for at-a-glance level checks before each
operating session, direct-drive mounting bolts for F33 NEMA
56-C motor installation, operator’s manual with parts schematic
for installation reference and repair kit identification, and
5-year commercial warranty documentation backed by AR North
America’s nationwide U.S. service center network and
domestic WSHPWR fulfillment.

The AR Dual Redundant Packing System

XMA3G25E-F33 — 60 Years of Longevity Engineering Standard on Every Unit

The dual redundant packing system is standard on every pump
across the AR XM, XMS, XMA, XMV, SXM, SXMS, SXMA, and SXMV triplex ceramic
plunger families. In a standard single-packing design, one seal ring contains
working pressure at every plunger stroke — when it wears, pressure bypasses
immediately, water contaminates the crankcase oil, and bearings accelerate
toward failure without warning. The AR dual redundant system places primary and
secondary packing stages in series. When the primary stage nears end of service
life, the secondary maintains pressure containment while a minor weep at the
telltale port alerts the operator. That early warning converts an unexpected
breakdown into a planned maintenance event — the accumulated result of over
60 years of Annovi Reverberi commercial pump engineering since 1958, and the
confidence behind the 5-year warranty on every XMA3G25E-F33.

Why 1,750 RPM at 2,500 PSI Changes the Equation

XMA3G25E-F33 vs. 3,400 RPM Direct-Drive Alternatives at Equivalent Pressure

The XMA3G25E-F33 delivers 3.0 GPM at 2,500 PSI — the same
pressure rating as many 3,400 RPM direct-drive gas engine and high-speed
electric alternatives. The difference is the speed at which that pressure
is produced and what that speed means for long-term service life.

At 1,750 RPM, the XMA3G25E-F33’s ceramic plungers complete
1,750 strokes per minute against the dual packing seals. At 3,400 RPM, that
rate nearly doubles — 3,400 strokes per minute on the same seals, valves, and
bearings at equivalent pressure. Heat generation scales with speed. Valve
seat wear scales with cycle count. Bearing surface velocity scales directly
with RPM. Every operating hour at 1,750 RPM accumulates less fatigue across
every internal component than the equivalent hour at 3,400 RPM — and over
months and seasons of commercial use, that difference compounds into
meaningfully longer intervals between seal replacements, more predictable
valve wear curves, and sustained 2,500 PSI output stability.

For electric pressure washer systems, workshop installations, and portable
contractor setups where the motor speed is fixed and controlled rather than
governed by a gas engine, the XMA3G25E-F33’s 1,750 RPM
specification is a deliberate engineering choice — not a limitation — that
delivers 2,500 PSI commercial pressure from a platform engineered
for long-term daily use.

XMA3G25E-F33 Key Benefits

Dual Redundant Packing, 2,500 PSI, and 1,750 RPM Slow-Speed Direct Drive

• Dual redundant packing — planned maintenance
  instead of breakdowns: primary and secondary
  stages with telltale port warning; standard on
  every XM Series 178 pump since 1958
• 2,500 PSI commercial pressure at 1,750 RPM
  slow-speed: serious cleaning force for fleet
  washing, surface preparation, and equipment
  washdown — produced at less than half the
  RPM of equivalent gas
  engine alternatives
• 1,750 RPM extends every wear interval:
  seals, valves, and bearings all cycle at half
  the rate of 3,400 RPM alternatives — the
  compounding service life advantage that makes
  slow-speed triplex the correct
  commercial specification
• F33 NEMA 56-C 5/8-inch E-shaft — standard
  electric motor interface: fits the most
  common NEMA 56-C motor output shaft without
  adapters; compact direct coupling without
  belts or pulleys
• 3.0 GPM for fleet washing and
  surface coverage: sufficient flow volume
  for commercial cleaning tasks without the
  infrastructure demands of higher-flow
  configurations
• Forged brass manifold and field-serviceable
  valves: maintenance plug access for AR repair
  kit replacement — rebuilt at wear intervals,
  not discarded

XMA3G25E-F33 Typical Applications

Where 3.0 GPM at 2,500 PSI at 1,750 RPM Delivers Commercial Results

• Vehicle and fleet washing: cars, trucks,
  vans, and service vehicles where 2,500 PSI at
  3.0 GPM removes road film, brake residue, and
  surface soils efficiently — and 1,750 RPM
  slow-speed operation sustains consistent
  output across full-day
  fleet washing cycles
• Outdoor surface maintenance: decks,
  patios, driveways, siding, and fences where
  2,500 PSI with correct nozzle selection handles
  the full range of residential and light
  commercial surface cleaning tasks
• Equipment wash bays: construction,
  agricultural, and industrial machinery where
  the XMA3G25E-F33’s dual redundant packing
  sustains performance across regular wash bay
  operating cycles from a fixed
  electric motor installation
• Workshop floors and facility
  maintenance: light industrial facilities
  and commercial workshops where consistent
  3.0 GPM electric operation and predictable
  maintenance intervals fit facility
  scheduling requirements
• Contractor portable electric systems:
  compact enough for portable cart builds yet
  powerful enough for commercial contractor
  cleaning work where NEMA 56-C electric operation
  is preferred over gas engine
  alternatives
• OEM electric pressure washer builds:
  15-lb compact weight, 5/8-inch E-shaft, F33
  NEMA 56-C mount, and factory-verified output
  make the XMA3G25E-F33 a reliable OEM
  specification for commercial electric
  pressure washer
  frame builds

XMA3G25E-F33 Installation & Maintenance

Best Practices for Long Dual Packing Service Life at 1,750 RPM

• Confirm motor output shaft is 5/8-inch
  and NEMA 56-C face: the XMA3G25E-F33
  F33 E-shaft requires a 5/8-inch motor output
  shaft — verify before installation; 3/4-inch
  shaft motors require a D-version
  pump instead
• Confirm motor delivers 1,750 RPM and
  adequate HP under load: 5.0 EBHP at
  rated duty point; motor undersizing causes
  speed drop and reduces output
  below 2,500 PSI
• Monitor telltale port: minor weep =
  primary packing wear; secondary is holding
  pressure — schedule AR repair kit replacement
  before secondary failure occurs
• Install upstream inlet strainer:
  50-mesh minimum — clean inlet water protects
  both packing stages and ceramic plungers
  from abrasive contamination
• Size unloader for 3.0 GPM and
  2,500 PSI: prevents pressure spikes
  that stress the dual packing beyond
  rated load
• Never run dry: confirm water flow
  before starting — dry operation damages both
  packing stages and plungers immediately
  and voids warranty
• First oil change at 50 hours:
  then per AR duty-cycle schedule; flush manifold
  with clean water after every
  chemical application
• Winterize: pump RV antifreeze
  through or fully drain before freezing
  temperatures — freeze damage
  voids warranty

Why Choose the Annovi Reverberi XMA3G25E-F33

2,500 PSI Commercial Output at Half the Speed of Gas Engine Alternatives

The XMA3G25E-F33 is the correct specification when 2,500 PSI
commercial cleaning pressure is needed from a standard NEMA 56-C 5/8-inch
electric motor platform — and when long-term service life from slow-speed
operation matters more than the compact simplicity of a higher-RPM alternative.
Dual redundant packing, forged brass manifold, field-serviceable valves, and
60 years of Annovi Reverberi engineering since 1958, backed by a 5-year warranty
and AR North America’s nationwide U.S. service infrastructure. Contact WSHPWR
for current pricing, availability, motor compatibility confirmation, and
repair kit specification.