XMASS3G15EF33-S | 3 GPM 1500 PSI Pump 1750 RPM SS Head 56C

XMASS3G15EF33-S

The Annovi Reverberi XMASS3G15EF33-S is a compact, stainless-steel
industrial triplex plunger pump engineered for professional high-pressure
cleaning systems, process skids, and fixed wash stations where uptime and
corrosion resistance matter. Rated up to 3.0 GPM at 2,000 PSI
and designed for 1,750 RPM, this “E” version pump uses a
5/8″ hollow shaft with F33 electric motor flange to
mount directly to 56C-style motors, creating a clean, efficient, and
space-saving package. The stainless head (S-series) construction, ceramic
plungers, and frictionless aluminum connecting rods deliver long service life
in demanding, moisture-prone, or chemically assisted cleaning environments.

• Stainless-steel head triplex plunger pump for demanding, corrosive environments.
• Delivers approximately 3.0 GPM at 2,000 PSI for strong, efficient cleaning.
• 1,750 RPM operating speed for cooler running and extended component life.
• E-version 5/8″ hollow shaft with F33 flange for direct-mount electric motors.
• Compact ~17 lb footprint for carts, cabinets, and OEM skids.

Performance and Pump Design

The XMASS3G15EF33-S is built on AR’s proven three-piston volumetric (triplex)
design, which produces smooth, consistent high-pressure output with reduced
pulsation. At 3 GPM and 2,000 PSI, it hits an ideal duty point for single-gun
wash bays, wall-mount electric pressure washers, and process cleaning rigs
that require reliable pressure without excessive water consumption or spray
mist. The combination of slow 1,750 RPM speed and stainless construction makes
this pump a strong choice for continuous-duty, indoor, or washdown
environments.

• Balanced duty point: 3 GPM @ 2,000 PSI for effective cleaning and rinsing.
• Triplex plunger architecture: three plungers phased 120° apart to minimize pressure ripple.
• Electric-drive friendly: optimized for direct coupling to 56C-frame motors.
• Supports cold and warm water use (typical max water temp 140°F / 60°C).

Triplex plunger advantages

Compared to axial or twin-piston pumps, the triplex layout provides superior
flow stability and a more linear pressure curve, which translates into
smoother spray patterns, reduced hose “kick,” and longer accessory life.

• Smoother spray for better operator control and more uniform cleaning results.
• Reduced stress on guns, wands, turbo nozzles, and rotating heads.
• More stable performance across different nozzle sizes and hose lengths.

Stainless Head Construction (S-Series)

The “SS / -S” designation identifies this pump as part of AR’s stainless-head
commercial series. Instead of a traditional brass manifold, the XMASS3G15EF33-S
uses a forged stainless-steel head designed to resist pitting, chemical
attack, and corrosion in aggressive or damp environments. This makes it a
smart upgrade wherever detergents, sanitizers, or coastal exposure could
shorten the life of a standard pump.

• Stainless-steel manifold head for superior corrosion resistance.
• Ideal for washdown in food plants, packaging lines, and coastal facilities.
• Helps maintain pressure and performance where brass heads might pit or discolor.
• Compatible with approved detergents and sanitizers (within AR chemical guidelines).

Internal materials and wet-end durability

Inside the stainless head, precision ceramic plungers and stainless valve
assemblies handle the high-pressure, high-cycle loads typical in industrial
cleaning. High-pressure packings and low-pressure seals are designed to keep
water out of the crankcase while holding pressure at the outlet.

• Plungers: thick solid ceramic plungers resist scoring and thermal shock.
• Valves: stainless steel valves and springs for reliable sealing and long life.
• High-pressure packings and low-pressure seals protect the crankcase from water intrusion.
• Typical porting: 1/2″ F inlet and 3/8″ F outlet for robust plumbing.

Crankcase, Shaft, and F33 Electric Flange

The drive end features a die-cast aluminum crankcase with cooling fins, an
oil-bath lubrication system, and a side sight glass for easy oil checks. The
5/8″ hollow electric shaft with F33 flange
is designed to bolt directly to NEMA 56C-style motors, eliminating the need
for separate base-plate alignment in many systems.

• Crankcase: die-cast aluminum with cooling fins for heat dissipation.
• Connecting rods: frictionless aluminum alloy rods for smooth, efficient motion.
• Oil capacity: approximately 14.5 oz for robust lubrication.
• Shaft/flange: 5/8″ hollow “E” shaft with F33 electric motor flange.

Serviceability

Like other XMA/XMASS series pumps, the XMASS3G15EF33-S is designed for quick,
predictable maintenance. Wear parts such as valves, water seals, and oil seals
are available in standardized kits, and technicians can access the head and
internal components using common shop tools.

• Standardized valve, water seal, and oil seal kits available.
• Oil sight glass and fill/dipstick for fast oil level checks.
• Head and valve plugs designed for straightforward inspection and rebuilds.

Typical Applications

With its stainless head, compact direct-drive layout, and 3 GPM / 2,000 PSI
performance, the XMASS3G15EF33-S is a versatile choice for commercial and
light industrial users who need reliable cleaning in demanding environments.

• Food and beverage plants – washdown, equipment cleaning, and floor rinse.
• Meat and poultry processing – USDA-compliant sanitation and foam knockdown.
• Pharmaceutical and packaging lines – clean-in-place support and conveyor rinse.
• Coastal and marine facilities – boatyards, docks, and salt-air exposed equipment.
• General industrial and maintenance wash bays – forklifts, carts, and plant equipment.
• OEM electric pressure washer skids – cabinet or wall-mount systems with limited space.

Key Specifications – XMASS3G15EF33-S

• Model: XMASS3G15EF33-S (stainless-head XMA series).
• Max flow: 3.0 GPM.
• Max pressure: 2,000 PSI.
• Rated speed: 1,750 RPM.
• Pump type: triplex ceramic plunger, oil-bath crankcase.
• Head material: stainless-steel manifold.
• Body: die-cast aluminum with cooling fins.
• Shaft: 5/8″ hollow “E” shaft with F33 electric motor flange.
• Oil capacity: approx. 14.5 oz.
• Max water temperature: 140°F (60°C).
• Inlet: 1/2″ F (typical).
• Outlet: 3/8″ F (typical).
• Approximate weight: about 17 lb.