NMX‑CWR‑30 / Rev 00 / engine ground support & depots / rings · metering · effluent 2026 · Product Page

NMX-CWR-30 · ENGINEERED TO ORDER — ENGINE COMPRESSOR WASHING RIGS

Wash the performance back. Metered, demineralised, logged.

Name: Engine Compressor Washing Rig
Brand: Neometrix

A compressor swallows whatever the air carries — salt, dust, insects, its own oil film — and pays for it in EGT margin and fuel burn. The cruel economics: most of that loss is dirt, not damage, and dirt washes off. The rig does it honestly: demineralised water and metered cleaner through engine-specific spray rings while the engine is motored — turning, never lit; soak; rinse cycles to a conductivity endpoint; blanking caps on every probe and bleed that must not drink; heated fluid for cold mornings and better cleaning; effluent captured, not drained away; and every wash logged per engine serial, with recovery proven where the loss lived — EGT margin, before versus after. Equipment of this class has been quoted against successive air force requirements for LP/HP compressor washing rigs; no delivered compressor wash rig is claimed — the class is engineered to order.

Enquire — compressor wash rigs Capability sheet (PDF)

Illustrative of the class — a mobile engine compressor washing rig in a clean hangar-style bay: a sturdy four-wheeled cart in fresh machine-grey paint carrying two polished stainless-steel tanks with domed tops, a pump bay with bright pipework and a valve manifold between the tanks, a hose reel with clean black hose, a compact control panel angled away, a towing drawbar at the front, clean light floor with a yellow line, no people and no readable markings

Fig · 01 The wash cart — two tanks, a metering bay, a hose reel, and the discipline stowed aboard

Water

demineralisedconductivity metered & logged

Delivery

engine-specificrings · nozzles · blanking kits

Cycle

motor · soak · rinseto a conductivity endpoint

Proof

EGT margin backbefore / after, on record

Status

engineered to orderquoted class

ISO 9001 / 14001 Engineered to order Engine-GSE franchise Fluid-discipline house rules Noida · India

Overview

Dirt, not damage — so take it back.

Fouling steals performance a degree of EGT margin at a time, and most of what it steals is recoverable. The washing rig is the machine that recovers it — provided the water, the fit and the logging are treated as seriously as the engine.

Illustrative of the class — a fit-kit storage rack in a clean equipment room: two large ring-shaped spray manifold assemblies in bright machined aluminium with rows of fine brass nozzles around their inner faces hung on padded cradles, fitted foam trays below holding rows of machined blanking caps, red and blue anodised quick couplings and neatly coiled hoses, no people and no readable markings

Fig · 02 Engine-specific by kit — the ring that fits the intake, and the blanking caps that keep water out of everything that must not drink

What fouling does. Salt near the coast, dust inland, insects down low, oil film from the engine's own breathing — the deposits roughen and subtly re-profile the compressor aerofoils. Mass flow and efficiency sag, and the engine buys the same thrust with more fuel and more turbine temperature. EGT margin — the distance between a hot-day takeoff and the redline — erodes quietly. The good news is economic: it is dirt, not damage, and dirt washes off.

How the wash works. Demineralised water — with an approved cleaner where the engine's schedule calls for it — is metered through a spray ring matched to the intake while the engine is motored on its starter: turning, never lit. The fluid rides the airflow through the stages, the soak lets the chemistry work, and rinse cycles repeat until the rinse water's conductivity says the cleaner and the dirt have both left. A dry-out run finishes the job. Recovery shows up where the loss lived: EGT margin and fuel flow, before versus after.

Why the rig matters as much as the fluid. Every probe, bleed port and drain that must not drink gets a blanking cap from the engine's own kit; nozzles are chosen for a droplet spectrum that cleans without eroding coatings; the heater earns its place on every cold morning; and the panel meters flow, volume, temperature and conductivity for every cycle, into a log the fleet can audit engine by engine.

Equipment of this class has been quoted against successive air force requirements for LP/HP compressor washing rigs. No delivered compressor wash rig is claimed: the class is engineered to order, and the record is stated as it stands.

Metered

Dosed by meter, not by eye

Flow, volume, temperature and conductivity logged on every cycle — the wash as a measured procedure, not a hose-down.

Fitted

Engine-specific by kit

Rings, nozzles and blanking caps per engine type — because the fastest way to turn a wash into a repair is water in a sensor.

Proven

Recovery on record

EGT margin and fuel flow, before versus after — the graph that justifies the interval and defends the rig.

Architecture

Blank, meter, wash, prove.

The schematic follows the wash — the engine blanked and fitted, the fluid metered and warmed, the cycles run to endpoint, the recovery logged — and the rig underneath: tanks and pumps, metering and heat, rings and kits, effluent and records.

FIG · 03WASH RIG ARCHITECTURE · TANKS + PUMPS / METERING + HEAT / RINGS + KITS / EFFLUENT + RECORDS

Fig · 03 The rig's honesty is the water's — and the log proves both

Arc · 01

Tanks & Pumps

Stainless demineralised and cleaner tanks, filtered and regulated — the stock protected from the day it is made.

Arc · 02

Metering & Heat

Flow, volume, temperature, conductivity — metered and logged; the inline heater for cold mornings and better chemistry.

Arc · 03

Rings & Kits

Spray rings matched to intakes, droplet-selected nozzles, blanking sets — stowed as engine-type kits the checklist walks through.

Arc · 04

Effluent & Records

Capture at the drains, disposal by the rules — and every wash on the engine's serial record.

Equipping a fleet — or an engine test facility? Send the engine types, the climate and the wash schedules — a clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference rigs, built to the fleet.

The parameters below describe reference rigs. Tank capacities, delivery rates, heater power and the kit inventory all follow from three givens: the engine types the fleet operates, the climate the flight line lives in, and the wash schedules the manuals prescribe.

Illustrative of the class — close view of the metering section of a washing rig in a clean workshop: bright polished stainless pipework with an inline flowmeter body seen edge-on, a small conductivity sensor housing with a thin cable, a compact insulated heater vessel, quick-coupling outlets on a machined manifold block, one small round gauge turned away, fresh grey panel behind, no people and no readable markings

Fig · 04 The metering bay — where flow, temperature and conductivity become numbers the log can defend

Where compressor washing goes wrong

Tap water — dissolved solids redeposit as fresh fouling, and chlorides head for the hot section to do corrosion's work. Detergent by eye — overdosed residues glaze the blades; underdosed washes waste the effort. The wrong droplet — a firehose erodes coatings; a mist cleans nothing past the first stage. Probes not blanked — the wash ends with a sensor replacement. A cold-soaked core in winter — wash water where ice can lock a stage. No rinse endpoint — cleaner left aboard to keep working on things it should not. Effluent to the storm drain — clean blades, real penalties. And no log — recovery never proven, intervals never justified, and the rig blamed for the water.

So the discipline runs the other way. The water is demineralised, protected and measured — conductivity in and conductivity out, every wash. The cleaner is dosed by meter to the engine schedule. The kit makes the fit deterministic — ring, nozzles and blanking caps per engine type, stowed as a set, walked as a checklist. The heater keeps the chemistry working in winter; the effluent goes into the rig, not the ground; and the log ties every litre and every degree to an engine serial — which is what lets a fleet see the EGT margin come back and schedule the next wash on evidence.

Full specification — expand

System	Engine compressor washing rig — mobile cart or fixed installation with engine-specific spray rings, blanking kits, metered delivery, heating, effluent capture & logging
Governing Idea	Wash the performance back — fouling is dirt, not damage; most of the lost EGT margin and fuel burn is recoverable
The Doctrine	The rig's honesty is the water's — demineralised stock, conductivity measured & logged, cleaner dosed by meter
The Cycle	Motor (turning, never lit) → soak → rinse to a conductivity endpoint → dry-out run — per the engine's own schedule
Fit Kits	Engine-specific by kit, not by luck — spray rings matched to intakes, droplet-selected nozzles, blanking caps for every probe, bleed & drain
Metering	Flow, volume, temperature, conductivity — metered per cycle, logged per engine serial
Heating	Inline heater — cold-weather capability and better cleaning; winterised variants with heated, freeze-protected tanks
Effluent	Captured at the drain points — salts, oils and spent cleaner collected and disposed of per environmental rules
Proof	EGT margin & fuel flow, before versus after — on the ground run or in trend monitoring; the graph that justifies the interval
The Split	The site's helicopter washing rig cleans the airframe; this rig cleans the engine's gas path. The aggregate flushing rig is the cousin discipline — clean fluid through the aircraft's hydraulic veins
Scope Boundary	Ours: the rig — tanks, pumps, metering, filtration, heater, hose management, controls & logging; engine-specific spray rings, manifolds & blanking kits; effluent capture; winterisation; installation, commissioning, documentation, training, spares & AMC — including build to the operator's specification and engine schedules. Bought-in certified: pumps, flow/conductivity/temperature instruments, hoses & couplings, heater elements. The customer's: the engines, their manuals, approved fluids and wash schedules
Status	Engineered to order — equipment of this class quoted against successive air force requirements for LP/HP compressor washing rigs; no delivered compressor wash rig is claimed

PDF · 1 page

Engine Compressor Washing Rig — Capability Sheet

Tender Response

Send engine types, climate & schedules — compliance matrix in two working days

Variants

One discipline, four rigs.

What changes is the flight line — its engines, its winters, and whether the wash happens beside a shelter or inside a test facility.

Var · 01

Squadron Mobile Wash Carts

Towable twin-tank carts — metering, hose reels and kit stowage sized for flight-line tempo.

Var · 02

Winterised & Heated Rigs

Heated tanks, freeze protection, warm delivery — washes that work on the mornings that need them most.

Var · 03

Fixed Test-Facility Systems

Plumbed wash stations for engine test beds — a standard wash before every acceptance run, logged with the run.

Var · 04

Fit Kits, Calibration & AMC

Rings, nozzles and blanking sets per engine type — plus instrument calibration, spares, training and support.

Applications

Wherever engines breathe dirty air.

The fleets that lose margin daily, and the facilities that give it back.

A · 01Air force & naval air engine fleets

A · 02Helicopter operators — coastal & offshore

A · 03Engine overhaul & test facilities

A · 04Desert & high-dust operating bases

A · 05Industrial gas-turbine operators

A · 06Flying training academies

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 How much performance does fouling actually steal — and how much comes back?

Enough to measure on every fleet, and most of it comes back. The mechanism is aerodynamic, not mysterious: compressor blades are precision aerofoils, and a film of salt, dust and oil changes both their roughness and, micron by micron, their shape. Boundary layers thicken, flow separates a little earlier, and the compressor moves less air at lower efficiency for the same shaft speed. The engine's control system quietly compensates — more fuel, more turbine temperature — which the operator experiences as rising EGT for the same power and a shrinking hot-day margin. Left alone, fouling also nibbles at surge margin, which is a safety number, not just an economic one. The recoverable fraction is the good news: deposits wash off; erosion and blade damage do not. A disciplined wash programme typically returns most of the fouling-driven EGT margin and fuel-burn penalty, and — just as valuable — makes the unrecoverable remainder visible, because once the dirt is gone, what is left on the trend plot is the engine's true mechanical ageing. That is why the rig logs every wash: the before-and-after deltas, engine by engine, are how a fleet learns what its air is costing and what its washing earns.

Q · 02 Why must the wash water be demineralised?

Because the water is going somewhere that remembers everything it carried. Tap water is a solution: calcium, magnesium, chlorides, sulphates, silica. Spray it through a compressor and the water evaporates on warm stages — but the minerals stay, redepositing as exactly the kind of film the wash was meant to remove; a fleet can wash diligently for a year and hold its fouling perfectly constant. Worse, the mineral load rides the airflow aft: chlorides and sulphates are the classic accelerants of hot-section corrosion, attacking blade coatings at combustion temperatures. So the doctrine is absolute: demineralised water only, protected from the day it is made (a stainless tank, not a jerrican), and measured rather than trusted — the rig's conductivity sensor reads the stock before the wash and the rinse water after it, and the rinse repeats until conductivity says the chemistry and the dirt have both left. The same logic disciplines the cleaner: an approved formulation, dosed by meter to the engine schedule, because surfactant left aboard keeps working on seals and paints long after the wash crew has gone home. On this rig, water quality is not a consumable's attribute — it is an instrument reading, logged with every wash.

Q · 03 What does “motored, never lit” mean — and why wash that way?

It means the engine turns on its starter with fuel and ignition off — the compressor breathes and the stages pump, but nothing burns. That is the standard gas-path wash condition for good reasons. The airflow of a motored engine is enough to carry metered fluid through the compressor stage by stage, wetting the aerofoils the wash exists to clean, while temperatures stay low enough that the fluid works as chemistry rather than flashing to steam on hot metal. With no combustion, cleaner formulations never meet flame; with modest speeds, the droplets chosen for cleaning cannot erode coatings the way they might at full rpm. The rig's role in this is coordination and metering: delivery timed to the motoring cycle, flow matched to what the engine type's schedule prescribes, soak periods observed so the chemistry earns its keep, and rinse cycles run to the conductivity endpoint. The dry-out run afterwards — a normal start and run per the manual — drives residual moisture out before it can sit anywhere it should not. None of this is the rig inventing procedure: the sequence belongs to the engine's manuals; the rig makes it meterable, repeatable and logged.

Q · 04 Why do spray rings and blanking kits have to be engine-specific?

Because every intake is a different mouth and every engine carries different things that must not drink. The spray ring is matched to the intake's geometry so the nozzle array wets the whole annulus — a ring that fits badly washes the cowl, not the compressor. The nozzles are chosen for droplet spectrum: too coarse and the spray erodes coatings and barely atomises past the first stage; too fine and it follows the streamlines around the blades without touching them. And the blanking kit is the difference between a wash and an incident: pressure probes, temperature sensors, bleed ports and drains ingest wash water with expensive enthusiasm, so each engine type's kit carries machined caps for exactly the openings its installation exposes, stowed in fitted trays so the checklist can see at a glance that every cap that went on has come off. This is the rig's quiet philosophy: make the engine-specific part deterministic hardware — a kit, a tray, a checklist — rather than flight-line improvisation. The same rig then serves a mixed fleet by carrying a kit per engine type, which is exactly how the requirements this class is quoted against are framed: one rig, several engines, no luck involved.

Q · 05 How is this different from the washing and flushing rigs you already build?

Same house discipline, three different targets. The site's helicopter washing rig cleans the airframe — the visible machine: rotors, skin, salt on the fuselage after a day over the sea. This rig cleans what that one cannot reach: the engine's gas path, where fouling costs EGT margin rather than shine. One washes the aircraft; this one washes the performance back. The aggregate flushing rig is the cousin from the hydraulic world — clean fluid circulated through the aircraft's hydraulic veins to carry contamination out of valves and actuators; a different fluid, a different circuit, the same conviction that cleanliness is metered, not assumed. And the jet air starter trolley is the natural partner on the line: it is the machine that motors the engine for exactly the kind of unlit turning a gas-path wash requires. Together they sketch the engine-GSE family this page extends: start it, wash it, prove it — with every fluid that touches the aircraft measured on its way in and accounted for on its way out.

Q · 06 What do you build, what is bought in — and what is claimed?

Divided honestly. What Neometrix provides: the rig — cart or fixed installation — with its stainless tanks, transfer and metering pumps, filtration, regulated delivery, inline heater and hose management; the engine-specific spray rings, manifolds and blanking kits in their fitted stowage; the effluent capture; winterisation where the climate demands it; the controls and per-serial logging; and installation, commissioning, documentation, training, spares and AMC — including build to the operator's own specification and engine schedules, which is how requirements of this class are invariably framed. What is bought-in certified: pumps, flow, conductivity and temperature instruments, hoses, couplings and heater elements — proprietary components of established makers, integrated rather than imitated. What is the customer's: the engines themselves, their manuals, their approved fluids and their wash schedules — the rig enforces them; it does not invent them. And the record, stated plainly: equipment of this class has been quoted against successive air force requirements for LP/HP compressor washing rigs. No delivered compressor wash rig is claimed; the class is engineered to order, fleet by fleet, around the engines it must serve.

↗

The engine-GSE family from Neometrix.

Start it, wash it, keep its fluids honest — engineered at our Noida facility.

↗ Airframe

Helicopter Washing Rig

The visible clean — rotors and skin; this page washes what it cannot reach.

↗ Engine Start

Jet Air Starter Trolley

The machine that motors the engine — the unlit turning a gas-path wash rides on.

↗ Hydraulics

Aircraft Aggregate Flushing Rig

The cousin discipline — clean fluid through the aircraft's hydraulic veins.

Browse all Neometrix product lines.

Get a quotation

Send the engine types
and the climate.

The projects desk replies within two working days with a clause-by-clause compliance matrix and a budgetary quotation. Write to [email protected] or use the form.

Enquire — compressor wash rigs Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — ENGINE COMPRESSOR WASHING RIGS WASH THE PERFORMANCE BACK · THE RIG'S HONESTY IS THE WATER'S · LOGGED PER SERIAL ENGINEERED IN NOIDA · INDIA

Wash the performance back. Metered, demineralised, logged.

Dirt, not damage — so take it back.

Dosed by meter, not by eye

Engine-specific by kit

Recovery on record

Blank, meter, wash, prove.

Tanks & Pumps

Metering & Heat

Rings & Kits

Effluent & Records

Reference rigs, built to the fleet.

Where compressor washing goes wrong

One discipline, four rigs.

Squadron Mobile Wash Carts

Winterised & Heated Rigs

Fixed Test-Facility Systems

Fit Kits, Calibration & AMC

Wherever engines breathe dirty air.

Common questions.

The engine-GSE family from Neometrix.

Helicopter Washing Rig

Jet Air Starter Trolley

Aircraft Aggregate Flushing Rig

Send the engine types
and the climate.

Similar Products

Share This Page

Wash the performance back. Metered, demineralised, logged.

Dirt, not damage — so take it back.

Dosed by meter, not by eye

Engine-specific by kit

Recovery on record

Blank, meter, wash, prove.

Tanks & Pumps

Metering & Heat

Rings & Kits

Effluent & Records

Reference rigs, built to the fleet.

Where compressor washing goes wrong

One discipline, four rigs.

Squadron Mobile Wash Carts

Winterised & Heated Rigs

Fixed Test-Facility Systems

Fit Kits, Calibration & AMC

Wherever engines breathe dirty air.

Common questions.

The engine-GSE family from Neometrix.

Helicopter Washing Rig

Jet Air Starter Trolley

Aircraft Aggregate Flushing Rig

Send the engine typesand the climate.

Similar Products

Share This Page

Send the engine types
and the climate.