SXMV4G40DVR3IDR 4.0 GPM 4000 PSI Pump | 3400 RPM VR3 IDR

SXMV4G40DVR3IDR by Annovi Reverberi — Triplex Plunger Pump with VR35 Gymatic Unloader, Integrated Dump Regulator, and Chemical Injector | 4.0 GPM | 4,000 PSI | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive

The SXMV4G40DVR3IDR by Annovi Reverberi is the highest-output pump in AR’s commercial XM Series lineup — a heavy-duty triplex ceramic plunger pump engineered for gas and diesel engine-driven industrial and commercial pressure washing systems operating at the maximum end of the commercial pressure range. Rated at 4.0 GPM and 4,000 PSI at 3,400 RPM, the SXMV4G40DVR3IDR delivers 16,000 cleaning units — the highest cleaning productivity rating of any pump in the AR XM Series commercial platform — making it the correct specification for large-scale industrial washdowns, high-contamination surface restoration, continuous-duty fleet cleaning operations, and any professional application where maximum pressure and maximum volume must be delivered simultaneously from a single engine-driven assembly.

What distinguishes the SXMV4G40DVR3IDR within the XM Series family is the VR3 unloader system with Integrated Dump Regulator (IDR) — AR’s advanced pressure management assembly that combines the Gymatic VR35 unloader’s 4,000 PSI rated bypass circuit with an integrated dump regulator for controlled, smooth pressure release at the full 4,000 PSI operating point. At this pressure level, bypass management precision directly affects seal longevity, system pressure stability, and downstream component protection across production wash cycles.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the SXMV4G40DVR3IDR arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with the VR3 IDR unloader system and active downstream chemical injector, and packaged with mounting bolts and fasteners, a vented dipstick, operator’s manual, and full parts schematic, this pump is ready to install from the moment it arrives. Protected by a 5-year US limited warranty through AR North America and built to be fully rebuilt rather than replaced, the SXMV4G40DVR3IDR is a long-term investment in the highest-output commercial pump platform AR produces.

Decoding the SXMV4G40DVR3IDR Model Number

What Every Segment of This AR Pump Designation Tells You

The SXMV4G40DVR3IDR model number encodes more specification data than any other pump in the AR XM Series commercial range. Reading each segment before specifying or installing confirms the pump’s unique configuration at 4,000 PSI:

• S — Series prefix: Special/SXMV series designation — identifies this pump as belonging to AR’s SXMV high-pressure platform, the elevated-duty variant of the XM Series engineered specifically for 4,000 PSI continuous operation
• XMV — Pump family: XM Series triplex plunger pump with forged brass manifold construction
• 4G40 — Performance rating: 4.0 GPM flow rate at 4,000 PSI maximum operating pressure — the highest combined output in the AR commercial XM Series pump lineup
• D — Shaft version: Direct Gas/Diesel Drive — 1″ hollow keyway crankshaft bore for direct coupling to gasoline or diesel engine 1″ output shafts
• VR3 — Unloader family: Gymatic VR35 series — AR’s elevated-capacity Gymatic unloader variant rated to 4,000 PSI and 5 GPM, the correct unloader family for the SXMV4G40DVR3IDR’s maximum-rated operating pressure
• IDR — Integrated Dump Regulator: an advanced pressure management component integrated into the VR35 unloader assembly that provides controlled, smooth pressure release during bypass transitions at 4,000 PSI — reducing pressure spike severity, protecting downstream components, and extending seal and valve service life at the maximum operating pressure point
• I (within IDR suffix) — Chemical injector: Included — a downstream soap and chemical injector is integrated into the VR35 IDR unloader assembly, enabling low-pressure detergent application without a separate injector fitting

VR3 IDR — What the Integrated Dump Regulator Does at 4,000 PSI

At 3,000 PSI and below, standard internal bypass unloaders manage trigger-off pressure transitions reliably through smooth flow redirection. At 4,000 PSI, the energy stored in the pressurized water column and system plumbing at the moment the trigger is released is substantially higher — and managing that transition smoothly becomes more consequential for downstream component life. The Integrated Dump Regulator (IDR) on the SXMV4G40DVR3IDR addresses this directly:

• Controlled pressure dump at bypass — when the spray trigger is released, the IDR provides a managed, regulated pressure dump to the bypass circuit rather than an abrupt transition, reducing the pressure spike magnitude at the point of bypass engagement at 4,000 PSI
• Reduced downstream component stress — smoother bypass transitions at 4,000 PSI reduce the instantaneous pressure shock transmitted to hoses, spray guns, quick-connect fittings, and surface cleaner attachments at the trigger-off moment on every work cycle
• Extended seal and valve service life — every high-pressure bypass event produces wear on pump seals, valve seats, and unloader internals. The IDR’s managed dump reduces the peak stress at each bypass transition, extending the service interval between seal and valve replacements on the SXMV4G40DVR3IDR in high-cycle production environments
• Consistent working pressure — the IDR maintains more stable system pressure during cleaning cycles, reducing pressure fluctuation that affects spray gun performance, surface cleaner rotation, and cleaning consistency on large-surface production jobs

Key Specifications

SXMV4G40DVR3IDR Technical Details at a Glance

• Flow Rate: 4.0 GPM (gallons per minute)
• Maximum Pressure: 4,000 PSI
• Cleaning Units: 16,000 (GPM × PSI) — highest in the AR XM Series commercial lineup
• Operating Speed: 3,400 RPM
• Pump Type: Triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, consistent maximum-pressure output
• Crankshaft Bore: 1″ hollow keyway — direct engagement with gas or diesel engine 1″ output shaft
• Manifold Material: Forged brass — dense, pore-free construction for corrosion resistance and sustained 4,000 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and chemical inertness across extended maximum-pressure commercial operating hours
• Valves: Stainless steel — precise seating geometry, scale resistance, and reliable performance under continuous 4,000 PSI cycling
• Flange: F40 — SAE J609A direct-drive flange for SXMV/RSV Series ‘D’ version, 1″ shaft, gas and diesel engine compatible (AR part AR2760290)
• Unloader System: Gymatic VR35 3/B series (VR3 code) with Integrated Dump Regulator (IDR) — brass-body unloader, adjustable pressure regulation, rated to 4,000 PSI and 5 GPM
• Chemical Injector: Included — downstream venturi injector integrated into VR35 IDR unloader assembly (“I” within IDR suffix confirmed)
• Warranty: 5-year limited warranty — US-based coverage through AR North America with domestic parts and service support

What’s Included in the Box

A Complete, Factory-Configured SXMV4G40DVR3IDR Assembly Ready for Installation

Every SXMV4G40DVR3IDR ships fully assembled and field-ready:

• Factory-installed VR35 IDR unloader system with active chemical injector — pre-mounted with Integrated Dump Regulator active and downstream injector ready for detergent supply line connection
• AR factory break-in oil — crankcase pre-filled to the correct operating level for first startup without modification
• Vented dipstick — enables fast, accurate crankcase oil level checks while maintaining proper crankcase pressure relief during operation
• Clear oil sight glass — at-a-glance oil level monitoring without removing the dipstick cap
• Mounting bolts and fasteners — hardware pre-selected and sized for F40 SAE J609A direct-drive flange installation on compatible gas or diesel engines
• Operator’s manual — complete installation, startup, operating, and maintenance procedures including oil change intervals, winterization protocol, and chemical injector care for the SXMV4G40DVR3IDR
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable SXMV4G40DVR3IDR component for field and shop reference
• Factory test certification — every SXMV4G40DVR3IDR load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

16,000 Cleaning Units — The Highest-Output XM Series Commercial Platform

What 4.0 GPM at 4,000 PSI Means in Production Cleaning Terms

The SXMV4G40DVR3IDR‘s 4.0 GPM / 4,000 PSI output translates to 16,000 cleaning units — a figure that puts the scale of this pump’s advantage in context against other commercial platforms:

• vs 3.5 GPM / 3,000 PSI (10,500 CU): The SXMV4G40DVR3IDR delivers 52% more cleaning productivity — meaning the same job that takes 10 hours on a 3,500 CU pump takes approximately 6.5 hours on the SXMV4G40DVR3IDR at proportional flow rates across comparable surfaces
• vs 3.0 GPM / 3,000 PSI (9,000 CU): 78% more cleaning productivity — the SXMV4G40DVR3IDR covers nearly twice the surface area per hour under comparable conditions
• vs 3.0 GPM / 2,700 PSI (8,100 CU): 98% more cleaning productivity — essentially double the output of a standard contractor pump at 2,700 PSI

For contractors pricing large-scale jobs, fleet operators managing high-volume wash cycles, and industrial facilities running daily production washdowns, the SXMV4G40DVR3IDR’s 16,000 CU output is not just a specification — it is a direct reduction in labor hours, equipment time, and cost per square foot cleaned.

Integrated Chemical Injection at 4,000 PSI — Two-Mode Maximum-Pressure Platform

Pre-Soak, Degrease, and 4,000 PSI Rinse Through the SXMV4G40DVR3IDR

The integrated downstream chemical injector on the SXMV4G40DVR3IDR delivers full two-mode capability at maximum operating pressure — high-pressure rinse and low-pressure detergent pre-soak — without additional injector hardware:

• Venturi-driven downstream injection — the injector integrated into the VR35 IDR unloader assembly draws detergent, degreaser, or pre-soak solution from a supply container when the SXMV4G40DVR3IDR operator switches to low-pressure application mode. No chemical pump or powered dosing system required.
• Two-mode workflow at 4,000 PSI — chemical pre-soak on heavily contaminated industrial surfaces, equipment, and vehicles followed by full 4,000 PSI / 4.0 GPM rinse. At this pressure and flow combination, the pre-soak workflow reduces total job time more dramatically than on lower-pressure platforms because the 4,000 PSI rinse removes loosened contamination so efficiently.
• No separate injector hardware required on the SXMV4G40DVR3IDR — the complete two-mode system is factory-assembled. One assembly. Two operating modes.
• Injector maintenance — flush the SXMV4G40DVR3IDR injector circuit with clean water after every detergent session to prevent chemical residue buildup in the VR35 IDR venturi passage, preserving long-term injector function as detailed in the included operator’s manual.

F40 SAE J609A — Direct Drive for Gas and Diesel Engines at 4,000 PSI

The High-Pressure XM Series Engine Interface. Gasoline or Diesel. No Adapter Required.

The F40 flange on the SXMV4G40DVR3IDR is AR’s SAE J609A direct-drive interface for the SXMV and RSV Series ‘D’ version pumps — the high-pressure variant of the XM Series engine coupling system, engineered for 1″ shaft close-coupling to both gasoline and diesel power sources at the 4,000 PSI duty point:

• Gasoline engine compatibility — direct bolt-up to commercial gas engines with a 1″ cylindrical output shaft and SAE J609A bolt pattern in the high-horsepower class required for 4.0 GPM / 4,000 PSI loads. Engine horsepower must be correctly sized for this duty point — verify engine rating before installation of the SXMV4G40DVR3IDR.
• Diesel engine compatibility — the F40 SAE J609A standard is equally compatible with standard diesel engines equipped with a 1″ crankshaft, making the SXMV4G40DVR3IDR the natural specification for diesel-powered heavy contractor rigs, agricultural equipment, and municipal service vehicles where high-horsepower diesel engines are the operational standard for 4,000 PSI applications
• Direct close-coupling — the SXMV4G40DVR3IDR mounts face-to-face against the engine with the 1″ hollow keyway crankshaft bore engaging the engine shaft directly, eliminating belt guards, pulleys, and tensioning hardware
• F40 vs F24 distinction — both flanges serve 1″ shaft XM Series ‘D’ version pumps with SAE J609A bolt patterns, but the F40 (AR2760290) is the designated interface for the SXMV/RSV Series high-pressure platform at 4,000 PSI. Verify the correct flange part number when sourcing replacement hardware for the SXMV4G40DVR3IDR.
• Included mounting hardware — bolts and fasteners sized for the F40 SAE J609A bolt pattern are supplied in the box

SXMV Series Construction — Built for 4,000 PSI Maximum-Duty Operation

Every SXMV4G40DVR3IDR Component Specified for Maximum Commercial Pressure

At 4,000 PSI the engineering requirements at every wear surface escalate beyond what standard commercial XM Series platforms encounter at 2,500–3,000 PSI. The SXMV4G40DVR3IDR reflects those elevated requirements across its entire material specification:

• Solid ceramic plungers resist the substantially elevated seal contact forces and higher-velocity water flow at 4,000 PSI. At this pressure level, ceramic plunger material selection is not interchangeable with lower-pressure alternatives — the hardness, dimensional stability, and chemical resistance of solid ceramic are required to maintain precision plunger geometry across the high cycle counts of maximum-pressure commercial operation. Individual replacement when service limits are reached — no full SXMV4G40DVR3IDR pump replacement required.
• Forged brass manifold provides a dense, pore-free pressure vessel engineered for the cyclic structural stress of 4,000 PSI continuous commercial duty — the highest sustained pressure in the AR commercial pump range. The manifold integrity of the SXMV4G40DVR3IDR at this operating point requires the density and pore-free structure that forged brass provides, as cast aluminum manifolds are not structurally appropriate for sustained 4,000 PSI operation.
• Stainless steel valves must resist substantially higher seating forces, faster flow velocities, and greater scale accumulation rates at 4,000 PSI than at lower operating pressures. The SXMV4G40DVR3IDR’s stainless valve geometry is specified for the fatigue and scale resistance required at maximum commercial pressure.
• Triplex three-plunger design produces overlapping pressure pulses that reduce pulsation-induced fatigue stress on hoses, spray guns, surface cleaners, and fittings — at 4,000 PSI and 4.0 GPM, pulsation loads on downstream components are at their maximum in the AR commercial lineup, making the triplex design’s smoothing effect on the SXMV4G40DVR3IDR particularly consequential for downstream equipment life.

Typical Applications

Where the SXMV4G40DVR3IDR Delivers Best Results

The SXMV4G40DVR3IDR’s 16,000 CU output, 4,000 PSI maximum-pressure operation, gas and diesel engine compatibility, and integrated VR35 IDR chemical injection make it the correct specification for the most demanding professional cleaning applications:

• Industrial concrete and surface restoration — parking structures, loading docks, industrial floors, and exterior concrete surfaces where maximum pressure and maximum flow are required to achieve production cleaning results efficiently on the SXMV4G40DVR3IDR platform
• Heavy industrial equipment cleaning — excavators, crushers, mining equipment, steel fabrication machinery, and large industrial plant equipment where 4,000 PSI penetrates caked contamination that lower-pressure platforms cannot remove without extended dwell or multiple passes
• High-volume fleet and vehicle washing — truck terminals, container depots, and large fleet yards where the SXMV4G40DVR3IDR’s 16,000 CU output dramatically reduces wash time per vehicle compared to standard commercial pump platforms
• Municipal and government heavy equipment services — public works heavy equipment, bridge maintenance, utility infrastructure, and large-scale facility cleaning where diesel engine compatibility and maximum output are both operational requirements
• Agricultural large-scale washdowns — combine harvesters, large grain handling equipment, feedlot facilities, and large barn structures where the SXMV4G40DVR3IDR’s maximum output and chemical pre-soak capability handle the contamination levels and surface areas involved
• Professional contractor production rigs — contractors competing on large commercial accounts where the SXMV4G40DVR3IDR’s productivity advantage translates directly into lower cost per square foot cleaned and higher job profitability
• Industrial facility exterior and interior maintenance — manufacturing plant exteriors, equipment yards, production floor surfaces, and loading infrastructure where sustained 4,000 PSI output and chemical application capability are both required daily

5-Year US Warranty, Full Rebuildability, and Wholesale Pricing

Maximum-Output Performance Backed by Domestic Support

The SXMV4G40DVR3IDR is protected by Annovi Reverberi’s 5-year limited warranty through AR North America’s US-based warranty and service network. Every internal wear component of the SXMV4G40DVR3IDR — solid ceramic plungers, brass manifold seals and o-rings, stainless valve seats and springs, VR35 IDR unloader service parts, and crankcase bearings — is stocked domestically through AR’s authorized distribution channels.

With consistent maintenance — break-in oil change at 50 hours, scheduled oil changes every 500 hours or 3–5 months, regular valve and seal inspection at the elevated service frequency appropriate for 4,000 PSI continuous-duty cycles, chemical injector circuit flushing with clean water after every detergent session, and proper winterization using RV-grade environmentally safe antifreeze — the SXMV4G40DVR3IDR is engineered for 10 or more years of productive maximum-pressure commercial service life. AR North America’s domestic parts depth ensures rebuild kits, plunger sets, and VR35 IDR unloader service components for the SXMV4G40DVR3IDR are typically available same-week.

Contractors, rental fleet operators, municipal purchasing departments, resellers, and volume buyers are invited to contact wholesale@wshpwr.com for wholesale and special pricing on the SXMV4G40DVR3IDR and the complete Annovi Reverberi pump and unloader assembly line. WSHPWR maintains one of the most complete AR North America inventories available through any US web store — with thousands of AR products in stock and a continually expanding catalog.

16,000 Cleaning Units. 4,000 PSI. 4.0 GPM. The Maximum-Output AR Commercial Platform.

Italian Engineering. VR35 IDR Precision. US Warranty Coverage.

For contractors, industrial operators, fleet managers, and municipal services who need the highest cleaning productivity in the AR XM Series commercial lineup — 4.0 GPM and 4,000 PSI delivered through the advanced pressure management of the VR35 Integrated Dump Regulator, with integrated downstream chemical injection, on a gas or diesel engine direct-drive platform built to last — the SXMV4G40DVR3IDR is the specification. Sixteen thousand cleaning units. Direct drive. One-inch keyway shaft. VR35 IDR bypass with integrated injector. Five years of US warranty. A decade of service life.

Volume buyers, resellers, and rental fleet operators can reach the WSHPWR wholesale team directly at wholesale@wshpwr.com to discuss pricing for quantity purchases across the complete Annovi Reverberi lineup — including pumps, unloader assemblies, and service parts.