XMV25G26DF25M1I 2.5 GPM 2700 PSI Pump | 3400 RPM F25M1I

XMV25G26DF25M1I by Annovi Reverberi — Triplex Plunger Pump with Gymatic VR35 Unloader and Chemical Injector | 2.5 GPM | 2,700 PSI | 3/4″ Shaft | SAE J609A Gas and Diesel Engine Drive

The XMV25G26DF25M1I by Annovi Reverberi is a commercial-grade XM Series triplex ceramic plunger pump engineered for gas and diesel engine-driven pressure washing systems that require 2,700 PSI output, integrated downstream chemical application, and the elevated bypass capacity of AR’s Gymatic VR35 unloader — providing maximum pressure headroom above the operating range for extended service life in demanding commercial duty cycles. Rated at 2.5 GPM and 2,700 PSI at 3,400 RPM, the XMV25G26DF25M1I close-couples directly to gasoline or diesel engines via its F25 SAE J609A direct-drive flange — the standard 3/4″ shaft interface for the Honda GX390, Kohler CH395, Briggs and Stratton Vanguard, and comparable contractor gas engine platforms — without adapters or intermediate couplings.

The XMV25G26DF25M1I carries the M1 unloader designation — confirming the Gymatic VR35, AR’s elevated-capacity Gymatic variant rated to 4,000 PSI and 5 GPM, paired with an integrated downstream chemical injector. At 2,700 PSI the VR35 operates with a 1,300 PSI margin above the pump’s maximum output — a substantially wider pressure headroom than the standard Gymatic 3/B provides at this operating range, producing a more stable bypass regulation window and meaningfully extended unloader service intervals in high-cycle production environments.

Built by Annovi Reverberi in Modena, Italy — with US-based operations, a domestic parts distribution network, and dedicated AR North America technical support — the XMV25G26DF25M1I 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 XMV25G26DF25M1I is a long-term investment in a high-pressure pump platform capable of a decade of productive commercial service life.

Decoding the XMV25G26DF25M1I Model Number

What Every Segment of This AR Pump Designation Tells You

Annovi Reverberi encodes all critical specification data — pump series, performance output, shaft type, flange interface, unloader variant, and injector configuration — directly into the model number. Reading the XMV25G26DF25M1I correctly before specifying confirms engine compatibility, unloader capacity, and chemical feed configuration:

• XMV — Pump series: XM Series triplex plunger pump — AR’s commercial high-pressure platform with forged brass manifold construction, engineered for sustained 2,700 PSI commercial-duty operation
• 25G26 — Performance rating: 2.5 GPM flow rate at 2,700 PSI maximum operating pressure
• D — Shaft version: Direct Gas/Diesel Drive — 3/4″ hollow shaft for direct coupling to gasoline or diesel engine 3/4″ output shafts
• F25 — Flange type: SAE J609A direct-drive flange for XM Series ‘D’ version pumps — close coupling to gas or diesel engines with a 3/4″ cylindrical shaft (AR part AR1780580). Compatible with the Honda GX390, Kohler CH395, Briggs and Stratton Vanguard, Kawasaki FX481V, and comparable 3/4″ shaft commercial gas engine platforms.
• M1 — Unloader variant: Gymatic VR35 — AR’s elevated-capacity Gymatic unloader sub-family, rated to 4,000 PSI and 5 GPM. The M1 designation maps to the same VR35 platform as the C1 code used in other XMV family models, confirming the higher-capacity bypass circuit that provides 1,300 PSI of headroom above the XMV25G26DF25M1I’s 2,700 PSI operating pressure.
• 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

M1 vs M2 — Understanding the Gymatic VR35 vs Gymatic 3/B on the XMV25G26DF25M1I

The XMV Series at 2,700 PSI is available with two Gymatic unloader variants that differ in rated capacity. Understanding the distinction ensures the correct unloader is matched to the intended duty cycle and that the XMV25G26DF25M1I is correctly identified:

• M1 — Gymatic VR35 (this model): Rated to 4,000 PSI and 5 GPM. Provides 1,300 PSI of operating headroom above the XMV25G26DF25M1I’s 2,700 PSI output — the widest stable regulation window and longest unloader service interval available in the XMV 2,700 PSI family. Unloader part reference: AR22287 (adjustable, 2.0 injector ratio, 4,000 PSI, 5 GPM, 1/2″ M inlet, 3/8″ M outlet, brass body).
• M2 — Gymatic 3/B: Rated to 3,650 PSI and 3–4 GPM. Standard Gymatic variant providing 950 PSI of headroom above 2,700 PSI — fully appropriate for standard commercial duty cycles where the VR35’s additional capacity margin is not required.

The XMV25G26DF25M1I‘s M1/VR35 specification is the preferred choice for high-cycle production environments, continuous-duty contractor operations, and rental fleets where maximum unloader service life between rebuilds is an operational priority.

Key Specifications

XMV25G26DF25M1I Technical Details at a Glance

• Flow Rate: 2.5 GPM (gallons per minute)
• Maximum Pressure: 2,700 PSI
• Operating Speed: 3,400 RPM
• Pump Type: Triplex ceramic plunger pump — three-piston crankshaft-driven design for smooth, consistent, high-pressure output
• Crankshaft Bore: 3/4″ hollow shaft — direct engagement with gas or diesel engine 3/4″ output shaft
• Manifold Material: Forged brass — dense, pore-free construction for corrosion resistance and sustained 2,700 PSI cycle integrity
• Plungers: Solid ceramic — exceptional hardness, wear resistance, and chemical inertness across extended commercial operating hours
• Valves: Stainless steel — precise seating geometry, scale resistance, and reliable performance under continuous 2,700 PSI cycling
• Flange: F25 — SAE J609A direct-drive flange for XM Series ‘D’ version, 3/4″ shaft (AR part AR1780580)
• Unloader System: Gymatic VR35 3/B series (M1 code) — brass-body internal bypass unloader, adjustable pressure regulation, rated to 4,000 PSI and 5 GPM
• Unloader Part Reference: AR22287 — adjustable Gymatic VR35, 2.0 injector ratio, 1/2″ M inlet, 3/8″ M outlet, brass body
• Chemical Injector: Included — downstream venturi injector integrated into Gymatic VR35 unloader assembly (“I” 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 XMV25G26DF25M1I Assembly Ready for Installation

Every XMV25G26DF25M1I ships fully assembled and field-ready:

• Factory-installed Gymatic VR35 unloader (AR22287) with active chemical injector — pre-mounted with integrated 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 F25 SAE J609A direct-drive flange installation on compatible 3/4″ shaft gas or diesel engines
• Operator’s manual — complete installation, startup, operating, and maintenance procedures including oil change intervals, winterization protocol, and chemical injector care
• Parts schematic — exploded-view diagram with AR part numbers for every serviceable XMV25G26DF25M1I component for field and shop reference
• Factory test certification — every XMV25G26DF25M1I load-tested at 50%, 100%, and 150% of rated output before leaving the AR manufacturing facility

The Gymatic VR35 Unloader — Maximum Headroom at 2,700 PSI with Integrated Chemical Feed

1,300 PSI Above Operating Pressure. Set It. Lock It. Trust It on Every Job.

The Gymatic VR35 unloader (AR22287) on the XMV25G26DF25M1I is rated to 4,000 PSI — providing a 1,300 PSI operating margin above the pump’s 2,700 PSI output. That headroom delivers measurable advantages in production wash environments:

• Maximum stable regulation window — the widest gap between operating pressure and rated ceiling in the XMV 2,700 PSI family produces the most stable, consistent bypass regulation response, reducing pressure fluctuation during continuous production wash cycles on the XMV25G26DF25M1I
• Extended unloader service life — bypass valve components, springs, and seating surfaces on the VR35 operating at 2,700 PSI against a 4,000 PSI-rated circuit experience significantly less cumulative stress than components operating against a 3,650 PSI ceiling, extending the rebuild interval in high-cycle commercial use of the XMV25G26DF25M1I
• Tamper-resistant once set — locked pressure maintained consistently across every operator and every job cycle, preventing crew-induced over-pressure events on contractor rigs and rental equipment
• Internal bypass operation — trigger-off bypass smoothly redirects flow through the elevated-capacity VR35 circuit, preventing deadhead pressure spikes that accelerate seal and valve wear during idle intervals on production wash jobs
• Integrated downstream chemical injector — the venturi injector in the VR35 unloader body draws detergent, degreaser, or pre-soak solution from a supply container when the XMV25G26DF25M1I operator switches to low-pressure application mode. No separate injector hardware required.
• Engine load reduction in bypass — reduced back-pressure lowers engine load and fuel consumption during idle intervals on full-day production wash operations
• Brass body construction — resists corrosion from cleaning chemicals, chlorinated water, and sustained field exposure at 2,700 PSI operating conditions

Integrated Chemical Injection — Two-Mode Wash Platform at 2,700 PSI

Pre-Soak, Degrease, and Rinse Through the XMV25G26DF25M1I

The integrated downstream chemical injector on the XMV25G26DF25M1I delivers full two-mode capability — high-pressure rinse and low-pressure detergent pre-soak — through a single factory-assembled pump:

• Venturi-driven downstream injection — the VR35-integrated injector draws detergent, degreaser, or pre-soak solution from a supply container using the venturi pressure differential when the XMV25G26DF25M1I operator switches to low-pressure application mode. No chemical pump or powered dosing system required.
• Two-mode workflow — detergent pre-soak applied at low pressure, dwell time for chemistry to break down contamination, then full 2,700 PSI / 2.5 GPM rinse to remove loosened material efficiently. Reduces total job time and chemical consumption compared to pressure-only washing on fleet vehicles, equipment, and commercial surfaces.
• No separate injector hardware required on the XMV25G26DF25M1I — 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 XMV25G26DF25M1I injector circuit with clean water after every detergent session to prevent chemical residue buildup in the VR35 venturi passage, preserving long-term function as detailed in the included operator’s manual.

F25 SAE J609A — The Standard Contractor Engine Interface at 3/4″ Shaft

Direct Drive. Broadest Engine Compatibility. No Adapter Required.

The F25 flange on the XMV25G26DF25M1I is AR’s SAE J609A direct-drive interface for XM Series ‘D’ version pumps matched to the 3/4″ shaft contractor engine class:

• Broad engine compatibility — the F25 SAE J609A 3/4″ shaft standard covers the Honda GX390, Kohler CH395, Briggs and Stratton Vanguard 13, Kawasaki FX481V, and comparable commercial gas engine platforms — the most widely deployed engines on contractor pressure washer frames in the US market
• Diesel engine compatibility — equally compatible with diesel engines equipped with a 3/4″ output shaft and SAE J609A bolt pattern for operations where diesel fuel is the preferred power source
• Direct close-coupling — the XMV25G26DF25M1I mounts face-to-face against the engine with the 3/4″ hollow shaft bore engaging the engine output shaft directly. No belt, jackshaft, or adapter required in a standard direct-drive installation.
• Compact installation envelope — direct coupling eliminates belt guards, pulleys, and tensioning hardware, reducing skid and trailer frame dimensions for portable contractor rigs
• Included mounting hardware — bolts and fasteners sized for the F25 SAE J609A bolt pattern are supplied in the box with the XMV25G26DF25M1I

XM Series Construction — Every XMV25G26DF25M1I Component Built to Be Rebuilt

Solid Ceramic. Forged Brass. Stainless Steel. Individually Serviceable.

• Solid ceramic plungers — machined from solid ceramic throughout, not ceramic-coated or precision-ground stainless. The hardness and dimensional stability of solid ceramic maintain precision plunger geometry across thousands of 2,700 PSI operating hours on the XMV25G26DF25M1I, resisting the abrasive wear from dissolved minerals and chemical solutions drawn through the downstream injector. Individual replacement when service limits are reached.
• Forged brass manifold provides a dense, pore-free pressure vessel that withstands the cyclic mechanical stress, thermal variance from gas and diesel engine environments, and chemical exposure of daily 2,700 PSI commercial duty on the XMV25G26DF25M1I without the structural degradation that limits cast aluminum manifolds under comparable conditions.
• Stainless steel valves maintain precise seating geometry through hundreds of thousands of 2,700 PSI pressure cycles, resisting calcium scale accumulation and pitting that cause pressure loss and valve chatter in lesser materials.
• Triplex three-plunger design produces smooth, overlapping pressure pulses that reduce pulsation-induced fatigue stress on hoses, spray guns, and fittings connected to the XMV25G26DF25M1I throughout the wash system.

Typical Applications

Where the XMV25G26DF25M1I Delivers Best Results

• Professional pressure washing contractors — two-mode wash workflow combining 2,700 PSI rinse with VR35-integrated detergent pre-soak for building exterior washing, surface restoration, and commercial property maintenance on the XMV25G26DF25M1I platform
• High-cycle production wash operations — the VR35’s 1,300 PSI operating margin above 2,700 PSI makes the XMV25G26DF25M1I the preferred specification for operations running the pump continuously at or near rated pressure where maximum unloader service life is an operational priority
• Fleet and vehicle washing operations — pre-soak degreaser application on trucks, trailers, and service vehicles followed by 2,700 PSI / 2.5 GPM rinse on mobile and trailer-mounted contractor rigs
• Agricultural operations — tractors, combines, barn equipment, and facility washdowns with chemical pre-soak capability on gas or diesel engine-powered rigs in field environments
• Rental equipment fleets — VR35 tamper-resistant pressure control, integrated chemical capability, and XM Series durability support high-utilization commercial rental cycles with maximum time between service events on the XMV25G26DF25M1I
• Municipal and government services — utility truck fleets, public works equipment, and infrastructure cleaning rigs where 3/4″ shaft engine compatibility and chemical application capability are both required
• Contractor rig builders and OEM integrators — the F25 3/4″ interface covers the broadest range of standard contractor gas engine platforms, and the VR35 unloader ensures maximum service life for the unloader assembly across heavy commercial use of the XMV25G26DF25M1I

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

Domestic Support for the XMV25G26DF25M1I — Built to Last as Long as the Pump

The XMV25G26DF25M1I 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 XMV25G26DF25M1I — 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, chemical injector circuit flushing with clean water after every detergent session, and proper winterization using RV-grade environmentally safe antifreeze — the XMV25G26DF25M1I is engineered for 10 or more years of productive commercial service life. AR North America’s domestic parts depth ensures rebuild kits, plunger sets, and Gymatic VR35 unloader service components for the XMV25G26DF25M1I are typically available same-week, keeping contractor rigs and fleet wash operations running rather than waiting on international shipping timelines.

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 XMV25G26DF25M1I and the full Annovi Reverberi pump and unloader assembly line. WSHPWR stocks more than 1,900 AR North America products — one of the most complete AR inventories available through any US web store.

2,700 PSI. Gymatic VR35. Maximum Unloader Headroom. Integrated Chemical Feed.

Italian Engineering. F25 Standard Engine Interface. US Warranty Coverage.

For contractors, production wash operators, rental fleet managers, and agricultural teams who need a gas engine-driven triplex pump with 3/4″ shaft direct-drive compatibility, the elevated bypass capacity and 1,300 PSI operating margin of the Gymatic VR35, integrated downstream chemical injection, and a fully rebuildable XM Series platform, the XMV25G26DF25M1I delivers a factory-tested, fully documented assembly from one of the global pressure pump industry’s most trusted manufacturers. Two thousand seven hundred PSI. F25 direct drive. Three-quarter inch shaft. Gymatic VR35 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.