RKASS4.2G15N | 4.2 GPM 3000 PSI Triplex Pump, 1750 RPM, SS 24mm

Annovi Reverberi RKASS4.2G15N Stainless Triplex Pump | 4.2 GPM 3000 PSI AISI 316L Viton 24mm

RKASS4.2G15N — the Annovi Reverberi AISI 316L stainless steel
triplex plunger pump delivering 4.2 GPM at 3,000 PSI at
1,750 RPM — engineered for food processing and dairy washdown
systems, soft-wash and building exterior cleaning, fleet and municipal vehicle
wash bays, pipe and tank flushing, industrial equipment cleaning, and contractor
skid builds where AISI 316L corrosion resistance, Viton o-ring chemical
compatibility, and reliable 4.2 GPM continuous-duty output at 3,000 PSI are
all required. The RKASS4.2G15N is built on a 24 mm
solid keyed shaft compatible with gas engines, electric motors, and
belt-drive configurations — combining an AISI 316L stainless pump head, Viton
o-rings, ceramic plungers, stainless steel valves, and oversized bearings into
a 22-lb continuous-duty stainless pump backed by a 5-year commercial
warranty with U.S.-based service support.

At 4.2 GPM and 3,000 PSI, the RKASS4.2G15N sits at the
largest-output position in the RKA-SS N version lineup — highest flow in the
family at a pressure that covers the full range of serious commercial cleaning
tasks from soft-wash building exteriors through fleet washing, food processing
washdown, and industrial equipment degreasing. The 1,750 RPM slow-speed design
reduces internal friction, heat buildup, and mechanical stress across extended
operating shifts, while Viton o-rings extend chemical seal compatibility to the
caustic cleaning agents, sanitizers, and detergents encountered in food
processing, dairy, and industrial sanitation applications where standard
seal materials would degrade prematurely.

RKASS4.2G15N Key Specifications

Performance, Drive & AISI 316L Stainless Construction — Confirmed AR Catalog

• Model: Annovi Reverberi RKASS4.2G15N
• Flow Rate: 4.2 GPM — highest flow in the
  RKA-SS N version lineup; fast rinsing of vehicles, floors,
  equipment, building exteriors, and pipe
  flushing applications
• Maximum Pressure: 3,000 PSI (200 Bar) —
  approved operating pressure for serious commercial cleaning
  across fleet washing, food processing washdown, and
  industrial equipment degreasing
• EBHP: 8.6 — effective brake horsepower
  at rated duty point
• Operating Speed: 1,750 RPM — slow-speed
  design for reduced internal heat, lower mechanical stress,
  and extended continuous-duty
  service life
• Bore: 22 mm | Stroke: 12 mm |
  CSID Stamp: 4
• Shaft: 24 mm solid keyed — N version,
  compatible with gas engines, electric motors, belt-drive,
  and gearbox configurations
• Weight: 22 lbs
• Pump Type: Triplex plunger — three-cylinder
  balanced design for low-pulsation output at rated
  3,000 PSI
• Pump Head: AISI 316L stainless steel —
  superior resistance to chlorides, caustic cleaners,
  disinfectants, and corrosive environments in food
  processing, dairy, and
  industrial applications
• Seals: Viton o-rings — durable compatibility
  with caustic cleaning agents, sanitizers, and detergents
  in food processing and industrial
  washdown environments
• Plungers: Ceramic — hard, dimensionally stable
  surface limiting packing wear under continuous
  stroking at 3,000 PSI
• Valves: Stainless steel — consistent seating
  and corrosion resistance for long-term volumetric
  efficiency in detergent-rich environments
• Bearings: Oversized — carry radial and axial
  loads of 1,750 RPM continuous-duty
  operation at 3,000 PSI
• Inlet: 1/2-inch female |
  Discharge: 3/8-inch female
• Max Water Temperature: 140°F
• Oil Capacity: 15 oz
• Oil Management: Integrated oil sight glass and
  vented dipstick for daily level checks and
  crankcase pressure control
• Warranty: 5-year commercial warranty with
  U.S.-based nationwide service support

What’s Included with the RKASS4.2G15N

Factory-Ready for Immediate Stainless Industrial Installation

• Pre-filled break-in oil (15 oz) — factory-installed
  for immediate commissioning without sourcing initial
  oil fill separately
• Integrated oil sight glass — quick visual
  level and condition check during daily or pre-shift
  inspections in production
  environments
• Vented dipstick — crankcase pressure control
  and convenient oil drain and refill access at
  scheduled service intervals
• 5-year commercial warranty documentation —
  with U.S.-based nationwide service
  center coverage

RKASS4.2G15N at 3,000 PSI — The Approved Performance Envelope

AISI 316L and Viton at the Highest-Flow RKA-SS N Version Specification

The RKASS4.2G15N is the highest-flow model in the RKA-SS
1,750 RPM N version solid shaft lineup — 4.2 GPM at 3,000 PSI delivered through
AISI 316L stainless construction and Viton o-ring sealing. At this duty point
the RKASS4.2G15N covers the full range of serious commercial cleaning demands
while the stainless construction and Viton seals ensure the pump performs
reliably in the corrosive chemical environments where those cleaning tasks
are most frequently required.

The AISI 316L stainless pump head addresses the corrosion
failure modes that limit brass-head pump service life in food processing,
dairy, and marine environments — chloride pitting, dezincification, and
caustic attack are specifically resisted by 316L’s molybdenum content.
The Viton o-rings extend seal compatibility to the caustic
cleaning agents, chlorinated sanitizers, and concentrated detergents of
food and industrial washdown applications where Buna-N seals would fail
prematurely. Together, AISI 316L and Viton define the chemical environment
the RKASS4.2G15N is engineered for — and that the brass-manifold standard
pump alternatives are not.

At 1,750 RPM, the RKASS4.2G15N’s ceramic plungers,
stainless valve seats, Viton seals, and oversized bearings operate at a
controlled rate that maintains stable internal temperatures across extended
commercial cleaning shifts — critical in food processing facilities where
the pump may run through multiple sanitation cycles daily with minimal
downtime between operating sessions.

RKASS4.2G15N Drive and System Integration

24mm Solid Shaft Flexibility for Gas, Electric, and Belt-Drive Installations

• Gas engine, electric motor, and belt-drive
  compatibility: the RKASS4.2G15N’s 24 mm keyed
  shaft supports diverse drive configurations across
  contractor skids, fixed plant installations, and
  mobile wash bay systems without
  custom adapter hardware
• 4-pole electric motor pairing with pulley
  reduction: for electric-drive installations,
  pair with 4-pole motors and pulley sets to maintain
  1,750 RPM while matching site voltage and
  horsepower requirements
• Stainless skid and washdown-rated mounting:
  compact footprint and conventional mounting pattern
  allow clean integration into stainless skids,
  wall-mounted frames, and cabinet systems with
  straightforward plumbing and
  guard arrangements
• Chemical injector and foamer compatibility:
  the RKASS4.2G15N integrates with chemical injectors,
  foamers, and rotating nozzles selected to match the
  4.2 GPM flow and 3,000 PSI
  pressure profile
• Standard unloader and system component sizing:
  integrates with unloaders, pressure regulators, safety
  relief valves, and hose assemblies sized for 4.2 GPM
  at 3,000 PSI — confirm all components
  are rated for 3,000 PSI service

RKASS4.2G15N Typical Applications

Where AISI 316L, Viton, 4.2 GPM, and 3,000 PSI Deliver Results

• Food processing and dairy washdown systems:
  AISI 316L stainless and Viton o-rings handle the caustic
  rinse chemistry and sanitizer concentrations of
  USDA-compliant food facility cleaning — OEM
  machine builders should follow facility
  certification requirements for
  completed system configurations
• Soft-wash and building exterior cleaning:
  4.2 GPM at 3,000 PSI with appropriate nozzle
  selection delivers controlled cleaning energy for
  siding, facades, and architectural finishes where
  moderate pressure protects
  surface coatings
• Fleet and municipal vehicle wash bays:
  the RKASS4.2G15N’s 4.2 GPM output at 3,000 PSI covers
  fleet washing efficiently with the stainless construction
  that handles the chemical range of
  commercial vehicle wash
  applications
• Pipe, vent, and tank flushing systems:
  steady 4.2 GPM flow for flushing residues and
  process buildup from industrial pipes, tanks, and
  vent systems where consistent flow volume
  matters as much as pressure
• General industrial equipment cleaning and
  shop-floor washdown: manufacturing and warehouse
  maintenance stations where stainless construction and
  Viton seals handle diverse industrial cleaning
  chemistry across daily
  operating schedules
• Contractor-built skids and portable systems:
  the RKASS4.2G15N’s 24 mm shaft, 1,750 RPM design,
  and 22-lb compact weight make it practical for
  field-built contractor cleaning rigs where
  stainless durability and continuous-duty
  performance are required

RKASS4.2G15N Maintenance and Service Planning

Preventive Care for Long-Term AISI 316L Stainless Platform Performance

• Daily pre-shift inspections: verify oil
  level and clarity via sight glass, check for leaks
  at all connections, confirm drive alignment, and
  verify stable operating pressure under load before
  each production or
  service shift
• Planned seal and valve intervals: schedule
  replacement around run hours, water quality, chemistry,
  and operating temperature — planned maintenance
  minimizes unplanned downtime in critical food
  processing and industrial
  cleaning operations
• Monitor inlet strainers and suction plumbing:
  clean inlet filtration and air-free suction prevent
  cavitation and pressure spikes that shorten
  Viton seal and ceramic plunger
  service life
• Never run dry: confirm water supply is
  flowing before starting — dry operation at 3,000 PSI
  damages ceramic plunger packings and Viton seals
  immediately and voids warranty coverage
• Flush between chemical applications: run
  clean water through the RKASS4.2G15N between caustic
  and acid wash cycles — mixed chemistry residue
  accelerates degradation even on
  AISI 316L construction
• First oil change at approximately 50 hours:
  then follow Annovi Reverberi’s duty-cycle schedule —
  food processing and industrial continuous-duty
  applications benefit from more frequent
  oil service intervals
• Winterize with compatible antifreeze: confirm
  antifreeze compatibility with facility protocols in
  food processing environments — drain completely
  where chemical antifreeze is
  not acceptable

Why Choose the Annovi Reverberi RKASS4.2G15N

Highest-Flow RKA-SS N Version at 3,000 PSI With AISI 316L and Viton

• Highest flow in the RKA-SS N version lineup:
  4.2 GPM at 3,000 PSI — more volume for faster rinsing,
  wider surface coverage, and better carry-off than the
  lower-flow RKA-SS models at
  equivalent pressure
• 3,000 PSI approved operating pressure at the
  stainless specification: the RKASS4.2G15N is
  confirmed for 3,000 PSI continuous service with AISI 316L
  construction and Viton seals — the correct specification
  for the corrosive environments where
  3,000 PSI cleaning is required
• AISI 316L and Viton together define the chemical
  environment: stainless manifold for corrosion
  resistance and Viton seals for caustic agent
  compatibility — the complete specification for food
  processing, dairy, and chemical
  industrial washdown
• 24 mm shaft for the broadest drive
  compatibility: gas engines, electric motors,
  and belt-drive configurations all interface with the
  same 24 mm keyed shaft — maximum installation
  flexibility for contractor and
  OEM builders
• Field-serviceable valve and seal assemblies:
  rebuild kits available; valve access with standard
  hand tools; the RKASS4.2G15N is maintained rather
  than discarded at wear — long-term
  asset value in the field
• Annovi Reverberi AISI 316L engineering since
  1958: over 60 years of industrial pump
  manufacturing including stainless and Viton
  configurations for food, chemical, and
  marine industrial applications
• 5-year warranty on AISI 316L Viton stainless
  construction: exceptional coverage for a
  premium industrial pump — backed by U.S.-based
  nationwide service centers
• Backed by WSHPWR: expert stainless pump
  application support, drive system sizing, chemical
  compatibility guidance, and full parts availability
  for the RKASS4.2G15N and the complete Annovi
  Reverberi RKA stainless pump family

The RKASS4.2G15N delivers 4.2 GPM at 3,000 PSI
at a controlled 1,750 RPM through a 24 mm solid keyed
shaft built on an AISI 316L stainless pump head with Viton
o-rings — the highest-flow RKA-SS N version stainless triplex pump
engineered for food processing washdown, dairy sanitation, fleet washing,
industrial equipment cleaning, and contractor skid builds where AISI 316L
corrosion resistance, Viton chemical seal compatibility, 4.2 GPM flow volume,
and 5-year commercial warranty confidence are all required at 3,000 PSI
continuous-duty service. Contact WSHPWR for current pricing, availability,
drive system sizing, and application support.