XMASS35G25N-S | 3.5 GPM 2500 PSI Pump 1750 RPM SS 24mm Shaft

XMASS35G25N-S

The Annovi Reverberi XMASS35G25N-S is a stainless-steel
industrial triplex plunger pump designed for demanding wash bays, process
skids, and specialty systems where corrosion resistance and uptime are
critical. Rated up to 3.5 GPM at 2,500 PSI and engineered
for 1,750 RPM operation, this XM-SS series model delivers a
powerful, stable duty point for single-gun wash systems and industrial
cleaning applications. The N-version solid-shaft configuration makes it
suitable for gas engine direct-drive or belt/gearbox drive packages, while
the stainless manifold and ceramic plungers provide long service life in
wet, chemical, or coastal environments.

• Stainless-steel manifold triplex pump for harsh or corrosive environments.
• Delivers up to 3.5 GPM at 2,500 PSI for serious cleaning power.
• 1,750 RPM operating speed for cooler running and reduced wear.
• N-version solid shaft for gas engine, belt-drive, or gearbox systems.
• Compact ~17 lb form factor for skids, carts, and tight frames.

Performance and Pump Design

The XMASS35G25N-S is built on AR’s proven triplex plunger platform, using
three ceramic plungers phased 120° apart to deliver smooth, consistent
pressure with minimal pulsation. At 3.5 GPM and 2,500 PSI,
it hits a sweet spot for industrial washdown, fleet cleaning, and process
rinse systems that demand reliable pressure without excessive water use.
The 1,750 RPM speed is slow enough to keep oil temperatures in check and
extend the life of seals, bearings, and connecting rods.

• Max flow: 3.5 GPM for high-output single-gun systems.
• Max pressure: 2,500 PSI for aggressive cleaning and rinsing.
• Rated speed: 1,750 RPM for cooler operation and long service intervals.
• Typical maximum fluid temperature of 140°F (60°C) for cold and warm-water duty.

Triplex plunger advantages

The triplex layout provides more stable flow than axial or twin-piston
designs, improving operator control and reducing stress on hoses, guns, and
rotary nozzles. This smoother pressure curve is especially important in
long-hose runs and multi-accessory setups.

• Smoother spray pattern with reduced hose “kick” and pulsation.
• Better life for guns, lances, swivels, and turbo/rotary nozzles.
• Consistent performance across a wide range of nozzle sizes and hose lengths.

Stainless Wet-End Construction XMASS35G25N-S

As part of AR’s XM-SS stainless series, the XMASS35G25N-S features a
316L stainless-steel manifold specifically designed to
resist pitting, chemical attack, and corrosion where traditional brass
heads may fail. This makes it a smart upgrade for food plants, chemical
processing, environmental services, and coastal installations where moisture
and aggressive detergents are everyday realities.

• 316L stainless manifold block with no porosity for long service life.
• Offset discharge ports for efficient, smooth internal flow.
• Stainless valve caps, cages, poppets, seats, and springs for full wet-end corrosion resistance.
• Excellent choice for washdown, sanitation, and salt-air environments.

Internal components and sealing system

Inside the stainless head, thick ceramic plungers and premium packing
systems handle continuous high-pressure cycling and frequent start/stop
duty. High-pressure packings and low-pressure oil seals are designed to
keep water and lubricant separated, protecting the crankcase from
contamination.

• Plungers: solid ceramic plungers for abrasion and thermal-shock resistance.
• Packings: high-pressure water seals plus low-pressure oil seals for crankcase protection.
• Ports: typical dual 1/2″ F inlets and 3/8″ F outlet for robust plumbing.
• O-rings and gaskets selected for high-pressure, industrial service.

Crankcase, Shaft, and Drive Options

The drive end of the XMASS35G25N-S features an anti-corrosion coated,
die-cast aluminum crankcase with cooling fins and oil-bath lubrication.
Oversized bearings on both sides of the crankshaft ensure precise alignment
and long life at 1,750 RPM. The N-version solid shaft is designed for
direct coupling to gas engines or for use with pulleys and gearboxes when
the duty point or drive configuration needs to be fine-tuned.

• Crankcase: coated die-cast aluminum with cooling fins for heat dissipation.
• Bearings: premium bearings supporting the crankshaft on both sides.
• Oil capacity: approximately 14.5 oz (check data plate / manual for exact spec).
• Shaft: N-version solid drive shaft for gas engine, belt, or gearbox drive configurations.

Serviceability

Like other XM/XM-SS pumps, the XMASS35G25N-S is designed for predictable,
straightforward maintenance. Common wear parts such as valves, water seals,
and oil seals are available in standardized kits, and head bolts and valve
plugs are accessible with typical shop tools, allowing fast teardown and
rebuilds.

• Standard valve, water-seal, and oil-seal kits available through AR distributors.
• Oil sight glass and drain plug make routine oil service simple.
• Service-friendly head and valve layout for quick inspection and replacement.

Typical Applications

With its stainless manifold, 3.5 GPM / 2,500 PSI performance, and
compact N-shaft layout, the XMASS35G25N-S is well suited to a wide range
of industrial and commercial environments where corrosion resistance and
uptime matter more than extreme pressure.

• Food and beverage plants – washdown, conveyor and equipment cleaning, foam knockdown.
• Chemical and environmental services – tank pads, sump areas, spill containment, and equipment rinse.
• Fleet and equipment wash bays – trucks, forklifts, refuse vehicles, and rental fleets.
• Recycling and waste management – compactor, container, and floor cleaning.
• Coastal and marine facilities – docks, boatyards, and salt-air exposed machinery.
• Specialty OEM skids – stainless-based pressure washer packages for industrial users.

Key Specifications – XMASS35G25N-S

• Model: XMASS35G25N-S (XM-SS stainless series).
• Max flow: 3.5 GPM.
• Max pressure: 2,500 PSI.
• Rated speed: 1,750 RPM.
• Manifold: 316L stainless steel block.
• Pump type: triplex ceramic plunger, oil-bath lubrication.
• Shaft: N-version solid drive shaft (gas engine / belt / gearbox compatible).
• Inlet ports: typically 1/2″ F (dual).
• Outlet port: 3/8″ F discharge.
• Max fluid temperature: 140°F (60°C).
• Oil capacity: approx. 14.5 oz.
• Approximate weight: about 17 lb.