SXMV4G40DF40VR35ID 4.0 GPM 4000 PSI Pump | F40VR35 Injector

SXMV4G40DF40VR35ID by Annovi Reverberi — Triplex Plunger Pump with Gymatic VR35 Unloader and Chemical Injector | 4.0 GPM | 4,000 PSI | 1″ Hollow Keyway Shaft | SAE J609A Gas and Diesel Engine Drive

The SXMV4G40DF40VR35ID by Annovi Reverberi is a heavy-duty SXMV Series triplex ceramic plunger pump engineered for gas and diesel engine-driven industrial and commercial pressure washing systems operating at 4,000 PSI with integrated downstream chemical application capability. Rated at 4.0 GPM and 4,000 PSI at 3,400 RPM, the SXMV4G40DF40VR35ID delivers 16,000 cleaning units — the highest output in the AR commercial pump lineup — combined with the Gymatic VR35 unloader’s stable 4,000 PSI pressure regulation and an integrated downstream chemical injector for complete two-mode professional wash capability.

The SXMV4G40DF40VR35ID is the injector-equipped configuration of the SXMV 4,000 PSI VR35 platform — positioned between the no-injector SXMV4G40DF40VR35 and the full IDR-equipped SXMV4G40DVR3IDR in the SXMV family. The “I” and “D” suffix elements confirm the active downstream chemical injector and the variant designation that distinguishes this configuration from standard VR35-only and full VR3IDR assemblies. Built around a 1″ hollow keyway crankshaft and F40 SAE J609A direct-drive flange, the SXMV4G40DF40VR35ID close-couples directly to gasoline or diesel engines with a 1″ cylindrical shaft without adapters or intermediate couplings.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the SXMV4G40DF40VR35ID arrives as a complete, factory-tested assembly. Pre-filled with AR break-in oil, equipped with a Gymatic VR35 unloader 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 SXMV4G40DF40VR35ID is a long-term investment in the highest-output commercial pump platform AR produces.

Decoding the SXMV4G40DF40VR35ID Model Number

What Every Segment of This AR Pump Designation Tells You

The SXMV4G40DF40VR35ID model number encodes the pump series, output, shaft, flange, unloader family, and injector configuration directly. Reading each segment before specifying confirms the full configuration of this 4,000 PSI injector-equipped platform:

• S — Series prefix: SXMV high-pressure series — AR’s elevated-duty XM platform variant engineered for 4,000 PSI continuous commercial 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
• D — Shaft version: Direct Gas/Diesel Drive — 1″ hollow keyway crankshaft bore for direct coupling to gasoline or diesel engine 1″ output shafts
• F40 — Flange type: SAE J609A direct-drive flange for SXMV/RSV Series ‘D’ version pumps — close coupling to gas or diesel engines with a 1″ I.D. cylindrical shaft (AR part AR2760290)
• VR35 — Unloader system: Gymatic VR35 — AR’s elevated-capacity Gymatic unloader family rated to 4,000 PSI and 5 GPM, matched to the SXMV4G40DF40VR35ID’s maximum operating pressure point
• I — Chemical injector: Included — a downstream soap and chemical injector is integrated into the Gymatic VR35 unloader assembly, enabling low-pressure detergent application without a separate injector fitting
• D (trailing) — Variant designation: distinguishes this injector-equipped VR35 configuration from the standard no-injector VR35 and the full IDR-equipped VR3IDR variant within the SXMV 4,000 PSI platform family

The SXMV 4,000 PSI Platform — Three Variants, One Choice

The SXMV 4.0 GPM / 4,000 PSI family is available in three suffix configurations sharing the same SXMV Series construction, F40 flange, 1″ keyway shaft, and Gymatic VR35 unloader family. Understanding all three ensures the correct pump reaches the correct system:

• SXMV4G40DF40VR35 — Gymatic VR35 unloader, no chemical injector, no IDR. Correct for maximum-pressure applications managing chemical delivery externally or operating on straight 4,000 PSI water pressure with standard bypass operation.
• SXMV4G40DF40VR35ID (this model) — Gymatic VR35 unloader with integrated downstream chemical injector active. Correct for operators requiring two-mode capability — 4,000 PSI rinse and low-pressure chemical pre-soak — through the standard VR35 bypass platform without the full IDR pressure dump management component.
• SXMV4G40DVR3IDR — Gymatic VR35 unloader with full Integrated Dump Regulator (IDR) and active downstream chemical injector. Correct for the highest-cycle production environments where the IDR’s managed bypass pressure dump reduces component stress at 4,000 PSI across intensive daily operation.

The SXMV4G40DF40VR35ID delivers integrated two-mode chemical capability on the standard VR35 bypass platform — the correct specification for operators who need chemical injection at 4,000 PSI without the additional IDR component.

Key Specifications

SXMV4G40DF40VR35ID 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 dimensional stability 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 — brass-body internal bypass unloader, adjustable pressure regulation, rated to 4,000 PSI and 5 GPM
• Chemical Injector: Included — downstream venturi injector integrated into Gymatic VR35 unloader assembly (“I” in 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 SXMV4G40DF40VR35ID Assembly Ready for Installation

Every SXMV4G40DF40VR35ID ships fully assembled and field-ready:

• Factory-installed Gymatic VR35 unloader with active chemical injector — pre-mounted with integrated downstream injector ready for detergent supply line connection on the SXMV4G40DF40VR35ID
• 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 for the SXMV4G40DF40VR35ID including oil change intervals, winterization protocol, and chemical injector care
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable SXMV4G40DF40VR35ID component for field and shop reference
• Factory test certification — every SXMV4G40DF40VR35ID load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

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

Pre-Soak, Degrease, and 4,000 PSI Rinse Through the SXMV4G40DF40VR35ID

At 4,000 PSI the contamination levels encountered on industrial equipment, heavy fleet vehicles, and large commercial surfaces respond dramatically better to a chemical pre-soak before maximum-pressure rinsing. The integrated downstream injector on the SXMV4G40DF40VR35ID delivers that capability without additional hardware:

• Venturi-driven downstream injection — the injector integrated into the VR35 unloader body draws detergent, degreaser, or pre-soak solution from a supply container when the SXMV4G40DF40VR35ID 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 applied at low pressure across the surface, dwell time for chemistry to break down maximum-contamination grease, oil, and embedded grime, then full 4,000 PSI / 4.0 GPM rinse to remove loosened material at maximum efficiency. At 16,000 cleaning units, the rinse phase of the SXMV4G40DF40VR35ID clears treated surfaces faster than any lower-output pump in the AR lineup.
• No separate injector hardware required on the SXMV4G40DF40VR35ID — the complete two-mode system is factory-assembled. One assembly. Two operating modes. No additional plumbing fittings needed for basic detergent application.
• Injector maintenance — flush the SXMV4G40DF40VR35ID injector circuit with clean water after every detergent session to prevent chemical residue buildup in the VR35 venturi passage, preserving long-term injector function as detailed in the included operator’s manual.

The Gymatic VR35 Unloader at 4,000 PSI with Chemical Feed

Maximum Pressure. Stable Bypass. Integrated Detergent. Set It. Lock It. Run All Day.

The Gymatic VR35 unloader on the SXMV4G40DF40VR35ID is rated to 4,000 PSI and 5 GPM — matched to the pump’s maximum operating pressure. Once pressure is set and locked on the SXMV4G40DF40VR35ID, the VR35 holds that setting reliably across every operator and every job cycle:

• Direct pressure-matched regulation — VR35’s 4,000 PSI rating aligns with the SXMV4G40DF40VR35ID’s maximum output for precise, tightly matched pressure control
• Tamper-resistant once set — locked pressure maintained consistently across contractor crews, rental cycles, and daily shift changes without re-adjustment or drift
• Internal bypass operation — trigger-off bypass on the SXMV4G40DF40VR35ID smoothly redirects flow, preventing deadhead pressure spikes that accelerate seal and valve wear during idle intervals on high-output production wash jobs
• Integrated downstream chemical injector — active venturi injector enables two-mode wash operation through the SXMV4G40DF40VR35ID without additional downstream hardware
• Engine load reduction in bypass — reduced back-pressure in bypass mode lowers engine load and fuel consumption during idle intervals on full-day maximum-pressure wash operations
• Brass body construction — resists corrosion from cleaning chemicals, degreasers, chlorinated water, and sustained heavy-duty field exposure

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

Every SXMV4G40DF40VR35ID Component Specified for Maximum Commercial Pressure

• Solid ceramic plungers in the SXMV4G40DF40VR35ID resist the substantially elevated seal contact forces and higher-velocity water flow at 4,000 PSI. At this pressure level, solid ceramic hardness and dimensional stability are required to maintain precision plunger geometry across high-cycle maximum-pressure commercial operation. Individual replacement when service limits are reached — no full SXMV4G40DF40VR35ID pump replacement required.
• Forged brass manifold on the SXMV4G40DF40VR35ID 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. Forged brass density and pore-free structure are required at this operating point.
• Stainless steel valves on the SXMV4G40DF40VR35ID resist the substantially higher seating forces, flow velocities, and scale accumulation rates at 4,000 PSI, maintaining precise seating geometry through hundreds of thousands of maximum-pressure cycles.
• Triplex three-plunger design produces overlapping pressure pulses that reduce pulsation-induced fatigue stress on hoses, spray guns, surface cleaners, and fittings connected to the SXMV4G40DF40VR35ID — at 4,000 PSI and 4.0 GPM, the triplex smoothing effect is particularly consequential for downstream equipment life.

F40 SAE J609A — Direct Drive for Gas and Diesel Engines

One Standard. Gasoline or Diesel. Engine Sizing Critical at 4,000 PSI.

• 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 on the SXMV4G40DF40VR35ID. Verify engine horsepower against the duty point before installation.
• Diesel engine compatibility — the F40 SAE J609A standard is equally compatible with standard diesel engines equipped with a 1″ crankshaft, making the SXMV4G40DF40VR35ID the natural specification for diesel-powered heavy contractor rigs and industrial equipment at 4,000 PSI
• Direct close-coupling — the SXMV4G40DF40VR35ID 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 part reference — AR part AR2760290, consistent with other SXMV Series F40 flange applications
• Included mounting hardware — bolts and fasteners sized for the F40 SAE J609A bolt pattern are supplied in the box with the SXMV4G40DF40VR35ID

Typical Applications

Where the SXMV4G40DF40VR35ID Delivers Best Results

• Professional contractor production rigs — two-mode wash workflow combining 4,000 PSI rinse with VR35-integrated chemical pre-soak through the SXMV4G40DF40VR35ID for concrete restoration, building exterior washing, and large commercial property maintenance
• Heavy industrial equipment cleaning — excavators, crushers, mining equipment, and large plant machinery where 4,000 PSI penetrates maximum-contamination surfaces and the SXMV4G40DF40VR35ID’s integrated injector handles chemical pre-treatment without additional hardware
• High-volume fleet and vehicle washing — truck terminals, container depots, and large fleet yards where the SXMV4G40DF40VR35ID’s 16,000 CU output and integrated detergent capability provide fast, thorough two-mode wash cycles
• Agricultural large-scale operations — combine harvesters, large grain handling equipment, feedlot facilities, and barn structures where diesel engine drive, maximum output, and chemical pre-soak capability are all required
• Municipal and government heavy equipment services — public works heavy equipment, bridge maintenance, and infrastructure cleaning rigs where the SXMV4G40DF40VR35ID’s diesel compatibility and integrated chemical feed are both operational requirements
• Paint prep and surface restoration — applications requiring maximum pressure combined with chemical pre-treatment for paint removal, oxidation cleaning, and surface preparation before coating or sealing
• Industrial facility maintenance — manufacturing plant exteriors, equipment yards, production floor surfaces, and loading infrastructure where the SXMV4G40DF40VR35ID’s maximum 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 SXMV4G40DF40VR35ID 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 SXMV4G40DF40VR35ID — solid ceramic plungers, brass manifold seals and o-rings, stainless valve seats and springs, Gymatic VR35 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 SXMV4G40DF40VR35ID 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 Gymatic VR35 unloader service components for the SXMV4G40DF40VR35ID 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 SXMV4G40DF40VR35ID 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. VR35 Bypass. Integrated Chemical Feed.

Italian Engineering. Maximum-Pressure Two-Mode Capability. US Warranty Coverage.

For contractors, industrial operators, fleet managers, and municipal services who need the highest cleaning productivity in the AR commercial lineup — 4.0 GPM and 4,000 PSI through the Gymatic VR35 unloader with integrated downstream chemical injection, on a gas or diesel engine direct-drive platform built for maximum-pressure continuous duty — the SXMV4G40DF40VR35ID delivers a factory-tested, fully documented, and completely rebuildable SXMV Series assembly from one of the global pressure pump industry’s most trusted manufacturers. Sixteen thousand cleaning units. Direct drive. One-inch keyway shaft. VR35 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.