Neometrix / Fire Fighting Equipment / Remote-Controlled Fire Monitor / NMX-RFM-97

NMX-RFM-97 · ENGINEERED-TO-ORDER CLASS — DUTY · MOUNT · DRIVES · CONTROL · BUILD · PROVE

Remote-Controlled Fire Monitor. A jet pushes back.

Name: Remote-Controlled Fire Monitor
Brand: Neometrix
SKU: NMX-RFM-97

A remote-controlled fire monitor throws water or foam at a fire from a safe distance. An operator aims it from a control position, and no one has to stand in the heat. Neometrix engineers it as a system: the mount, the drives, the valve, the nozzle, the controller and the proof.

So the monitor has to hold down against the push of its own jet, keep its aim where it was set, and stay under control when the signal is lost.

Discuss a fire monitor Capability note (PDF)

A remote-controlled fire monitor on a plain white studio background: a pale grey pedestal pipe on a round bolted base flange with a square inlet branch, a bright stainless steel swivel housing with a black electric drive motor and a small black handwheel, a stainless barrel raised to point upward with a second black drive motor at its pivot, a plain stainless nozzle, and no water, no jet and no people

Fig · 01 — A remote-controlled fire monitor: a pedestal on a bolted base, a swivel with its electric drive, a raised barrel with a second drive, and a nozzle at the end — illustrative render.

The result

a jet on the firethrown from a safe distance

The mount

held against the pushof the jet it throws

The aim

set, and heldby drives and a brake that do not creep

The control

a defined safe stateif the signal or the power is lost

Status

engineered to orderno delivered monitor claimed

ISO 9001ISO 14001EN 15767 reference for portable monitors and nozzlesISO 12100 reference for machinery safety

Overview

What a remote monitor has to get right, and what goes wrong when it does not.

Because a jet is a strong force, and the monitor that throws it has to take that force without moving.

A small fire-fighting robot on a plain white studio background: a low red painted steel body on two black rubber crawler tracks, a short bright stainless steel monitor on a swivel on top with a flared nozzle pointing upward, a plain hose inlet with a round coupling at the rear, two stainless outrigger feet lowered at the sides, and no water, no jet and no people

Fig · 02 — A fire-fighting robot on a crawler base: a monitor on its swivel, the hose inlet at the rear, and outrigger feet that brace it against the push of the jet — illustrative render.

A jet pushes back.

What the monitor is for

It puts a jet or a spray of water or foam onto a fire from a distance. It is aimed by remote control, so that no one has to stand in the heat. It serves process plants, hangars, ports and fire stations.

Why a jet pushes back

A jet leaving a nozzle pushes the nozzle the other way, as hard as it pushes the water out. The push grows with the flow and with the speed of the jet.

Why the mount matters

The push goes down through the barrel, the swivel and the pedestal into the mount. So the mount, and the structure under it, must resist it, in shear and in bending, with the monitor flowing at its full duty.

Why a flat jet moves a base

The flatter the jet, the more of the push is sideways. On a movable base a sideways push can slide the base or tip it. So the base is heavy, braced or anchored.

Why the aim has to be held

The push and the kick of the jet try to move the barrel. Drives that do not creep, and a brake, hold the aim where it was set, and position feedback shows it.

Why the pressure is read at the nozzle

The reach comes from the pressure and the flow at the nozzle, from the nozzle type and from the wind. A stream with too little pressure or flow is ineffective. So the pressure is read at the nozzle, and the supply is sized to the monitor.

Why the valve moves at a controlled rate

A valve that shuts fast on a flowing line sends a pressure surge back through the pipe. So the remote valve opens and closes at a controlled rate.

Why the control has a safe state

If the signal or the power is lost, the monitor must not swing on its own. It holds where it is, a manual override is at the unit, and a second control position can take over.

Why the drives are protected

Radiant heat from the fire reaches the monitor too. So the drives and the cables are shielded, or sited out of the heat path.

The method

Duty, mount, drives, control, build and prove.

Six steps in a fixed order. The mount and the proof are the two that a quick job skips.

1 · Duty

The fire risk, the water or foam supply, the distance to the fire, the place the monitor stands, and who aims it from where are noted.

2 · Mount

The push of the jet at full duty is carried through the pedestal into a mount or a base, and the structure under it is checked for shear and bending.

3 · Drives and valve

Electric or electro-hydraulic drives swing and raise the barrel and hold it. A remote valve opens and closes the supply at a controlled rate.

4 · Nozzle and control

The nozzle is chosen for the jet, the spray or the foam. The controller, wired or by radio, has a defined state if the signal or the power is lost.

5 · Build

The mount or base, the drives, the cables and the shielding are built and fitted, with a manual override at the unit.

6 · Prove

The monitor is run at full flow, the mount is checked under the jet, the loss of signal is tried, and the record goes with the monitor.

Which hazard, which safeguard

What can go wrong	Why it happens	What the monitor does about it
The monitor slides or tips when the jet starts	the jet pushes back, and more sideways when it is flat	a mount designed for the push, a base that is heavy, braced or anchored, and a valve that opens at a controlled rate
The jet falls short of the fire	too little pressure or flow at the nozzle, or wind	pressure read at the nozzle, a supply sized to the monitor, and a nozzle chosen for the duty
The aim wanders	the kick of the jet, or play in the drives	drives that do not creep, a brake, and position feedback that shows where the barrel points
Control is lost	the signal or the power fails	a defined safe state, a manual override at the unit, and a second control position
The drives are damaged by heat	radiant heat from the fire	shielding, heat-resistant cable, and drives sited out of the heat path
A surge shakes the line	a valve shuts fast on a flowing line	a remote valve that opens and closes at a controlled rate

The step people underrate is the mount. A monitor that aims well and is bolted to a weak structure will move the first time it throws its full jet.

Work content

What the monitor contains, element by element.

Read it as a checklist: a monitor missing a row will throw water, but it will not hold its aim against its own jet.

The swivel and elevation drive of a fire monitor on a plain white studio background: a bright stainless steel swivel housing on a pale grey round base flange, a black electric drive motor with a round gear box and a small black handwheel, a stainless barrel section on a trunnion with a second black drive motor, a black housing beside the pivot, and no people

Fig · 03 — The swivel and elevation drives: a motor and gear box with a handwheel for manual override, a second motor at the barrel pivot, and a housing beside the pivot for the position sensor — illustrative render.

Element	What it does	What matters
Barrel and swivel	carry the jet and turn it	a barrel and a swivel that take the push of the jet at full duty, with seals that stay tight as the barrel turns
Drives	swing and raise the barrel	electric or electro-hydraulic drives that hold the aim where it is set and do not creep under the push of the jet
Brake and position feedback	hold and report the aim	a brake that holds the barrel, and feedback that shows where it points, so that the aim can be set and repeated
Remote valve	opens and closes the supply	a valve operated by remote control that moves at a controlled rate, so that the line is not shaken by a surge
Nozzle	forms the jet	a nozzle for a straight jet, a spray or foam, chosen for the duty, with the pressure read at the nozzle
Mount and base	carry the push	a mount that resists the push in shear and in bending, or a base that is heavy, braced or anchored
Controller	aims and sweeps	a controller, wired or by radio, that aims the barrel, sweeps it over an arc, and has a defined state if the signal is lost
Manual override	works if the power is lost	a means at the unit to move the barrel and close the valve by hand
Protection	keeps the drives working	shielding from radiant heat, heat-resistant cable, and enclosures that keep water and dirt out
Supply connection	joins the monitor to the water or foam	an inlet made for the push and the pressure of the supply, with a strainer that keeps debris out of the valve and the nozzle
Testing & documentation	prove the monitor first	a flow test at full duty, a check of the mount under the jet, a loss-of-signal test, and a record the customer can inspect

The elements that decide the result are the mount and base and the drives and brake. The first carries the push of the jet, and the second keeps the aim where it was set.

Full specification — expand

System	A monitor barrel on a swivel, with electric or electro-hydraulic drives for swing and elevation that hold the aim, and a brake; position feedback; a remote valve that opens and closes at a controlled rate; a nozzle for jet, spray or foam; a mount or base that resists the push of the jet in shear and in bending; a controller, wired or by radio, with a defined state if the signal or the power is lost; a manual override at the unit; heat protection for the drives and cables; and load and flow testing and documentation before handover
The One Idea	A jet pushes back.
Why The Mount Matters	A jet pushes its nozzle back as hard as it pushes the water out, and the push grows with the flow and the speed of the jet; it goes down through the barrel, the swivel and the pedestal into the mount, which must resist it in shear and in bending
Why A Flat Jet Moves A Base	The flatter the jet, the more of the push is sideways; on a movable base a sideways push can slide the base or tip it, so the base is heavy, braced or anchored
Standards	EN 15767 covers portable monitors for fire service use, including their water nozzles, and ISO 12100 covers the general principles of design, risk assessment and risk reduction for machinery. This page prints none of their requirements, and no edition year. The mounting instructions for the monitor body that is fitted govern how it is held down. Approval of a monitor rests with the customer and the authority they name; none is claimed here
Configurations	A fixed pedestal monitor, a movable monitor on a wheeled base, and a fire-fighting robot on a crawler base
Scope Boundary	This page is the remote-controlled fire monitor, which throws the water or the foam. It is not a hydrant and pump system, which supplies the water (see fire hydrant and pump system), not a foam proportioning system, which mixes the foam into the water (see foam proportioning system and mobile foam trolley) and not a water bowser, which carries the water (see tactical water bowser). It does not decide the fire plan, and it does not replace the fire officer's own judgement. No certification or accreditation is claimed here
Status	Neometrix engineers remote-controlled fire monitors to order, and no delivered remote-controlled fire monitor is claimed.

Configurations

One method, three ways to build the monitor.

The method, the safety design, the control logic and the proof are shared. What changes is what carries the push of the jet, and where the monitor stands.

Fixed pedestal monitor

A monitor on a pedestal that is bolted to a structure built for the push of the jet

For a place that is always at risk: a process plant, a hangar or a berth. The mount and the structure under it carry the push.

Movable monitor on a wheeled base

A monitor on a base that is moved to the fire, then braced or anchored

For a risk that changes place: the base is heavy, braced or anchored before the jet is thrown, so that a sideways push cannot slide it.

Fire-fighting robot on a crawler base

A monitor on a remote-controlled crawler base, with the supply hose joined to it

For a fire that no one can approach: the robot is driven to the fire, set down and braced, and then it aims and throws the jet from where it stands.

And the part that is not equipment at all, yet decides all three: the duty and the fire plan. They are written from the customer's own risk, supply and site, not from the monitor.

The drawings

A reference set, drawn as real CAD sheets.

Two sheets of one reference configuration: the system schematic of a remote-controlled fire monitor, and the general arrangement of a fixed pedestal monitor with three details. They show the supply, the remote valve, the monitor body, the drives with their brakes and sensors, the controller and the safe state, the elevation and plan, the push of the jet going into the mount, and a movable base. They carry tags and letters only. Every flow, pressure, force, distance and quantity is fixed by design for the customer's duty.

Reference drawing sheet one, the system schematic of a remote-controlled fire monitor. A supply of water or foam solution passes a strainer and a remote valve to the monitor body, which has a swivel, a barrel with an elevation joint and a nozzle, with a pressure gauge at the inlet and at the nozzle, on a mount. A controller and a second control position command the valve and two drives, each with a brake, a position sensor and a handwheel. A box states the safe state. A legend, a table of what each step does, seven notes and a title block stamped reference configuration, not for construction

Fig · 04 — Sheet 01, the system schematic: the supply, a strainer, a remote valve, the monitor body on its mount, the two drives with their brakes, position sensors and handwheels, the controller and the safe state. Reference configuration, tags only.

Reference drawing sheet two, the general arrangement and details of a fixed pedestal remote-controlled fire monitor. An elevation shows the base flange with its bolts, the pedestal pipe, the inlet branch, the swivel housing with its drive, the raised barrel with its drive and the nozzle. A plan shows the flange, its bolt circle, the pedestal, the inlet and the barrel. An item list numbers ten parts. Detail A shows the jet pushing the nozzle back and the push going down into the mount, Detail B how a flat jet pushes sideways, and Detail C a movable base braced against the push. A title block stamped reference configuration, not for construction

Fig · 05 — Sheet 02, the general arrangement and details: the fixed monitor in elevation and plan, the push of the jet going into the mount, a flat jet pushing sideways, and a movable base braced against it. Reference configuration, letters only.

Every real monitor is drawn for its own risk, its own supply and its own site. These sheets are the arrangement and the order of working that a project set starts from. The mounting instructions for the monitor body that is fitted govern how it is held down. Approval of any drawing rests with the customer and the authority they name; none is claimed here.

PDF · two sheets

Reference drawings — schematic and arrangement

PDF · capability sheet

Remote-controlled fire monitor — what Neometrix engineers

Where it is used

Wherever a fire is too hot to approach, and the jet has to land.

The common thread is a fire that people must stay away from, a supply that has to reach it, and a monitor that must not move when the jet starts.

Process plants and storage

Where a fire in a process unit or a storage area is too hot to approach, and a fixed monitor covers it from a safe place.

Hangars and large buildings

Where a large space has to be covered from a few points, and the monitor is aimed from a control room or a safe position.

Ports and terminals

Where a berth, a yard or a loading area is covered, and a movable monitor or a robot is brought to the fire.

Fire stations and training

Where crews learn to aim and hold a monitor by remote control, and the monitor is proved before it is trusted.

Watch

See it in motion.

A short walkthrough video of the Remote-Controlled Fire Monitor.

FAQ

Common questions.

Longer answers, for readers who want the reasoning.

Q · 01 What does a remote-controlled fire monitor actually do?

It throws a jet, a spray or foam onto a fire from a distance, and an operator aims it from a control position. A barrel on a swivel is swung and raised by electric or electro-hydraulic drives, a brake and position feedback hold and report the aim, and a remote valve opens and closes the supply at a controlled rate. A nozzle forms the jet. A controller, wired or by radio, aims the barrel and can sweep it over an arc. The monitor does not decide how a fire is fought. That comes from the fire plan, and the monitor is built, set and proved to carry it out.

Q · 02 Why does a jet push back, and what does that mean for the mount?

Because a jet leaving a nozzle pushes the nozzle the other way, as hard as it pushes the water out. The push grows with the flow and with the speed of the jet. It goes down through the barrel, the swivel and the pedestal into the mount, so the mount and the structure under it must resist it in shear and in bending, with the monitor flowing at its full duty. On a movable base it matters more. The flatter the jet, the more of the push is sideways, and a sideways push can slide the base or tip it. So the base is made heavy, braced or anchored before the jet is thrown.

Q · 03 Why does the aim have to be held, and how?

Because the push and the kick of the jet try to move the barrel, and a jet that wanders does not reach the fire. The drives are chosen so that they do not creep under that load, a brake holds the barrel where it is set, and position feedback shows where it points, so that an aim can be set again and repeated. When the barrel is made to sweep over an arc, the sweep is a controlled movement and not a drift. The controller reads the feedback, and the fitter can see the aim from the control position.

Q · 04 What happens if the signal or the power is lost?

The monitor must not swing on its own. Its safe state is defined when it is designed: it holds where it is, and the brake holds the barrel. A manual override at the unit moves the barrel and closes the valve by hand, and a second control position can take over the aim. The state is tried before handover by cutting the signal and the power on purpose. A monitor that has never been tested that way has not been proved. The remote valve also moves at a controlled rate, so that closing it does not send a surge through the line.

Q · 05 Is this the same as a hydrant system, a foam proportioner or a water bowser?

No, and the differences are worth stating precisely. The fire hydrant and pump system page covers supplying the water. The foam proportioning system and mobile foam trolley page covers mixing the foam into the water. The tactical water bowser page covers carrying the water. This page is the remote-controlled fire monitor, which throws the water or the foam. It does not replace any of them, and it does not claim what they claim a second time.

Q · 06 Has Neometrix built one of these?

We would rather answer this plainly than let a page imply otherwise. Neometrix engineers remote-controlled fire monitors to order, and no delivered remote-controlled fire monitor is claimed. What stands behind the offer is adjacent: Neometrix engineers a fire hydrant and pump system (see the fire hydrant and pump system page), a foam proportioning system (see the foam proportioning system and mobile foam trolley page) and a water bowser (see the tactical water bowser page). The monitor barrel, nozzles, valves, drives, cables and enclosures are catalogue items, bought in, not invented. What Neometrix engineers is the system around them: the mount and the base, the control and its safe state, the robot base, the protection and the proof. So the honest position is that the monitor is engineered to order, the neighbouring disciplines are in the building, and the first monitor of this exact kind will be built around the customer's own risk, supply and site rather than taken off a shelf.

Q · 07 Which standard applies, and what can the monitor not do?

EN 15767 covers portable monitors for fire service use, including their water nozzles, and ISO 12100 covers the general principles of design, risk assessment and risk reduction for machinery. This page prints none of their requirements, and no edition year: those come from the standard the customer names. The mounting instructions for the monitor body that is fitted govern how it is held down. The monitor throws the water or the foam. It does not decide the fire plan, it does not supply or mix anything, and it does not replace the fire officer's own judgement. This page claims no certification or accreditation. No flow, pressure, force, distance or quantity figure is printed here, and approval of a monitor rests with the customer and the authority they name; none is claimed here.

Q · 08 What do you need from us to quote?

Six things, and most of them describe your risk rather than the monitor. First, the fire risk: what burns, where, and how far the monitor stands from it. Second, the supply: the water or the foam, and what the supply can deliver at the monitor. Third, the place: whether the monitor is fixed, moved, or driven, and what it stands on. Fourth, the control: who aims it, from where, and by wire or by radio. Fifth, the conditions: heat, wind, dust and weather at the site. Sixth, the use: how often it is run, and by whom. From that we come back with a monitor concept, a test plan you can check, and a budgetary price.

The neighbouring pages, and how they differ from this one.

Three neighbours: one supplies the water, one mixes the foam, one carries the water.

↗ The supply

Fire Hydrant & Pump System

Supplies the water to the hydrants - where this page throws the water from a monitor, aimed by remote control.

↗ The foam

Foam Proportioning System and Mobile Foam Trolley

Mixes the foam into the water at the right rate - a different job from throwing the mixture at a fire.

↗ The carrier

Tactical Water Bowser

Carries the water to the place it is needed - where this page aims and throws it.

Browse all Neometrix product lines.

Get a quotation

Tell us the risk,
and the supply behind it.

The projects desk replies within two working days with a monitor concept, a test plan you can check, and a budgetary quotation. Write to [email protected] or use the form.

Enquire — fire monitor Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED-TO-ORDER CLASS — REMOTE-CONTROLLED FIRE MONITOR DUTY · MOUNT · DRIVES · CONTROL · BUILD · PROVE — A JET PUSHES BACK. ENGINEERED IN NOIDA · INDIA