Neometrix / Diving & Life Support / Military Diving Equipment / NMX-DIV-30

NMX-DIV-30 · ENGINEERED TO ORDER — DIVING SETS · REBREATHERS · FIELD CHARGING & GAS SYSTEMS

The dive lasts an hour. The support chain runs all year.

Name: Military Diving Equipment & Diver Support Systems
Brand: Neometrix

A diving set is certified equipment. Keeping divers diving is engineering. We supply both halves and never confuse them: certified sets from licensed makers — open-circuit to the EN 250 class, and closed-circuit rebreathers that leave few or no bubbles — and the engineering around them.

That engineering is our home ground. Field compressors that charge cylinders to breathing quality. Gas boosters and analysers for rebreather oxygen and mixes. Anti-deflagration containers for safe charging. Test benches, spares and records that follow every set through its shelf life. The set gets the glory. The support chain keeps it alive.

Discuss a diving programme Capability note (PDF)

Military diving equipment laid out in a clean store: closed-circuit rebreather and open-circuit set on stands beside fins, mask, weight belt, knife and bailout cylinder on a grey bench

Fig · 01 — The kit, laid out for issue. Every item here is either a certified article from a licensed maker or a piece of engineering — and it matters which.

The split

certified / engineeredthe set / everything around it

The sets

open + closed circuitEN 250 class · rebreathers

Field gas

charge, boost, analyseLP + HP, oxygen and mixes

Through life

test + shelf liferubber ages by calendar

Status

engineered to ordercapability page

ISO 9001ISO 14001Clause-by-clause complianceTrial-sample patternIn-house engineering

Overview

Two kinds of breathing set, and one reason bubbles matter.

The whole kit follows from how the diver breathes. Start there and everything else makes sense.

Closed-circuit rebreather opened on a clean bench showing counterlung, scrubber canister and small oxygen cylinder, with an open-circuit regulator and twin cylinder beside it

Fig · 02 — Open circuit and closed circuit, side by side. One vents every breath. The other recirculates it — and that changes everything.

The diver breathes what the analyser said, not what the label said. That is why gas analysis is life-support, not paperwork.

Open circuit: simple and proven

An open-circuit set is the classic form. Compressed air from a cylinder, through a regulator, breathed once, vented to the water. It is simple, rugged and certified to the EN 250 class of standards. Every breath leaves as bubbles, and the gas is used once.

Rebreathers: long, quiet, small

A closed-circuit rebreather does not vent. The diver's exhaled gas passes through a carbon-dioxide scrubber, oxygen is added to replace what the body used, and the gas goes round again. Three things follow. Duration grows enormously, because gas is recycled instead of thrown away. Cylinders shrink, because so little gas is consumed. And the set releases few or no bubbles — which is the military point. A semi-closed unit sits between the two.

The physics sets the limits. A pure-oxygen rebreather is a shallow-water tool, because oxygen turns toxic as depth grows. Mixed-gas units carry the diver deeper. We state that plainly and leave the tables to the diving manuals, where they belong.

Why this defines the support chain

A rebreather is only as safe as the gas in it and the scrubber behind it. So the kit around it is not optional: boosters to move oxygen and mixes into small cylinders, analysers to prove the mix before a diver breathes it, and service benches to test the set between dives. The set is certified once, by its maker. The gas is proven every single time, by the operator — with equipment that is pure engineering.

Certifiedsets, suits, instruments

Engineeredcharging, boosting, analysis

Containedanti-deflagration charging

Recordedevery set, through shelf life

The capability

Sets, systems, support — one working whole.

A diving capability is bought as a kit but lives as a system. The schematic shows the whole of it.

FIG · 03MILITARY DIVING CAPABILITY · CERTIFIED KIT / DIVER SYSTEMS / FIELD GAS ENGINEERING / PROOF + THROUGH-LIFE

The split runs through everything. Certified articles come from licensed makers and are never badged. The engineering around them — gas, containment, test, records — is ours.

The sets

Open-circuit sets to the EN 250 class. Closed and semi-closed modular rebreathers. Bailout cylinders for the way home. All certified articles, integrated and supported — never self-certified.

The personal kit

Suits, rash guards, booties and gloves. Masks, snorkels and fins. Weight systems, knives, depth instruments, surface floats. Carriage bags built for how divers actually move their kit.

Diver systems

Through-water communication, diver to diver and diver to surface. Handheld and area lights for night work. Guide lines. Marker beacons. Diver propulsion vehicles that extend range without extending effort.

Field gas engineering

Portable low-pressure and high-pressure compressors that charge to breathing quality in the field. Booster systems for oxygen and mixes. Analysers that prove the gas. The same discipline as a shore plant, packaged to travel.

Safe containment

Anti-deflagration containers for charging and storage. A charged cylinder is stored energy, and containing it while it is filled, moved and stored is engineering — not an accessory.

Proof and through-life

Service and test benches for sets and regulators. Records that follow every set by serial number. Shelf-life management, because rubber ages by the calendar. Joint defect investigation through warranty and shelf life together.

Work content

What a diving programme contains, element by element.

Read the table as a checklist. A programme missing a row is a programme that will buy that row later, at retrofit prices.

Portable high-pressure breathing-air compressor with charging whips connected to cylinders inside an open anti-deflagration charging container, gas booster and analyser on a bench alongside

Fig · 03 — The field charging chain: compressor, containment, booster, analyser. This is the half of diving nobody photographs and everybody depends on.

Element	What it is	Certified or engineered
Open-circuit sets	cylinder, regulator, harness — EN 250 class	certified article
Rebreathers	closed / semi-closed, modular, scrubber + oxygen feed	certified article
Bailout	independent small cylinder and regulator	certified article
Suits and personal kit	wet suits, masks, fins, weights, knives, instruments	certified / standard goods
Communication	through-water diver-to-diver and diver-to-surface	engineered system
Lights and lines	handheld and area lights, guide lines, marker beacons	engineered system
Propulsion	diver propulsion vehicles	certified article, integrated
LP field compressor	surface-supply and low-pressure charging duty	engineering — ours
HP field compressor	cylinder charging to breathing quality, in the field	engineering — ours
Gas boosters	oxygen and mixes into small high-pressure cylinders	engineering — ours
Gas analysers	prove the mix before the diver breathes it	engineering — ours
Anti-deflagration containers	containment for charging and storage	engineering — ours
Test benches	set and regulator service, between-dive proof	engineering — ours
Records and shelf life	per-serial history; calendar-life management	engineering — ours
Training	quality-assurance staff at the maker's works; users with delivery	programme deliverable

The row that decides safety is the analyser. A rebreather diver breathes what the analyser said, not what the label said — so the analyser is life-support equipment, and it is calibrated and proven like it.

Full specification — expand

System	Military diving equipment and diver support: certified sets and personal kit, diver systems, field gas engineering, safe containment, test benches and through-life support — delivered as one working capability
The One Idea	A diving set is certified equipment. Keeping divers diving is engineering. The split decides who does what, and being plain about it is a credential
The Sets	Open-circuit self-contained sets to the EN 250 class of standards. Closed and semi-closed-circuit modular rebreathers: exhaled gas passes a carbon-dioxide scrubber, oxygen is added as used — long duration, small cylinders, few or no bubbles. Bailout cylinders independent of the main set
The Depth Physics	Pure-oxygen rebreathers are shallow-water tools — oxygen turns toxic as depth grows. Mixed-gas units carry the diver deeper. Stated plainly; the tables stay in the diving manuals where they belong
Personal Kit	Wet suits, rash guards, booties, gloves; half-face masks and snorkels; fins; weight belts and weights; diver’s knives; depth instruments; surface floats; carriage bags sized for real kit moves
Diver Systems	Through-water communication diver-to-diver and diver-to-surface; handheld and area lights for night work; guide lines; marker beacons; diver propulsion vehicles
Field Charging	Portable low-pressure and high-pressure breathing-air compressors — the same purification and proof discipline as a shore charging plant, packaged to travel. Breathing-air quality is a measured property of the delivered gas, never a compressor choice
Gas For Rebreathers	Booster systems move oxygen and mixes into small high-pressure cylinders. Gas analysers prove the mix before anyone breathes it — the diver breathes what the analyser said, not what the label said
Safe Containment	Anti-deflagration containers for charging and storage. A charged cylinder is stored energy; containing it while it is filled, moved and stored is engineering, not an accessory
Through Life	Set and regulator test benches; per-serial records; shelf-life management — rubber goods age by the calendar, not by use; joint defect investigation through warranty and shelf life together
The Supplier’s Role	Procure, supply, integrate, maintain and test certified sets — lawfully and routinely. Never self-certify, never badge. The certification belongs to the licensed maker, and saying so plainly is a credential, not a limitation
The Buying Pattern	Clause-by-clause compliance with the specification; a sample set for composite field trials before any award; a compatibility certificate against the equipment the force already holds; training for quality-assurance staff at the maker’s works and for users with delivery; consignment-wise supply of complete sets
Boundaries	Chambers and saturation systems: the hyperbaric and saturation diving page. Breathing-air plants and industrial rescue sets: the breathing air page. Cylinder hydrostatic testing: the HP air bottle test page. This page is the diver’s own equipment and its field support
Scope Boundary	Ours: kit engineering and integration, field charging and gas systems, analysis, containment, test benches, documentation, training and through-life support. Bought in certified: the sets, suits, instruments and propulsion units from licensed makers. The customer’s: the divers, the doctrine, and the acceptance decision
Status	Work of this class is engineered to order; the neighbouring breathing-air, cylinder-test and hyperbaric diving lines stand on this site, and no delivered military diving-kit supply is claimed.

Configurations

A kit, a detachment, or a whole capability.

The same elements scale three ways. The support chain is designed in from the first kit either way.

Kit level

Complete diver sets

Set, suit, instruments, bailout and carriage — issued as complete, compatible, serial-tracked kits. The honest minimum unit of purchase.

Detachment level

Kits plus field support

Sets plus the gas chain that keeps them working away from base: field compressors, boosters, analysers, containment, comms and lights. A detachment that charges its own cylinders answers to nobody's schedule.

Capability level

The full programme

Kits, field support, test benches, spares, records, training and through-life management — with chambers and cylinder testing cross-linked from their own pages. What a force actually operates.

Compatibility is the quiet requirement at every level. New kit must mate with what the force already holds — charging connections, communication, fittings — and the forces’ own tenders ask for that compatibility in writing.

Where it fits

Wherever the work is under the surface.

The same kit architecture serves very different jobs. The gas chain behind it barely changes.

Military diving units

Reconnaissance, obstacle clearance, ship's-bottom search and underwater work parties — the units whose tenders define this equipment class.

Naval diving teams

Fleet diving work from harbours and ships, where the hyperbaric and cylinder-test pages complete the picture this page starts.

Rescue and disaster response

Flood and swift-water rescue forces buy the same sets, lights, comms and charging chain — with their own tenders for personal diving kits.

Police and security diving

Search and evidence recovery under harbour and inland waters: open-circuit kits, communication and lights, plus the service bench behind them.

Remote and high-altitude sites

Dams, reservoirs and border waters far from any dive store — where the field charging chain stops being convenient and becomes the whole point.

Training establishments

Dive schools consume kit, gas and service capacity faster than any operational unit — and need the records discipline most.

Diving equipment service room with a regulator test bench, gas analyser and tagged cylinders in racks, wet suits hung in a row and a diver propulsion vehicle on a stand

Fig · 04 — The service room: test bench, analyser, tagged cylinders, suits on calendar-life. This room is why the kit still works in year five.

FAQ

Common questions.

Longer answers, for readers who want the reasoning.

Q · 01 Why do military divers use rebreathers instead of ordinary SCUBA?

Three reasons, and they compound. First, signature: an open-circuit set vents every exhaled breath as a stream of bubbles that can be seen and heard at the surface, while a closed-circuit rebreather recirculates the gas and releases few or none — for work near watching eyes, that alone settles it. Second, endurance: open circuit throws its gas away after one breath, so duration is bought in cylinder volume and carried on the diver's back; a rebreather re-uses the same gas, scrubbing out carbon dioxide and adding only the oxygen the body actually consumed, so hours of duration come from cylinders small enough to swim with comfortably. Third, workload: less carried mass and better trim mean a diver who arrives at the job less tired. The price of these advantages is engineering discipline. A rebreather is a life-support loop, and it depends absolutely on the scrubber being fresh, the oxygen feed being right, and the gas being what it is supposed to be — which is why the analyser, the boosters and the service bench are not accessories to the set but conditions of using it. The physics also sets a boundary worth knowing: pure-oxygen units are shallow-water tools, because oxygen becomes toxic as depth grows, and deeper work moves to mixed-gas configurations. The manuals carry the tables; the kit list carries the consequences.

Q · 02 Does Neometrix manufacture the diving sets?

No, and the reason shapes every honest procurement in this field. A breathing set — open circuit or rebreather — is a type-certified article. Its certification belongs to the licensed maker, is earned through type-examination and audited production, and attaches to the named model. That is exactly as it should be for equipment a life depends on. What it does not mean is that only manufacturers may participate. Procuring, supplying, integrating, maintaining and testing certified sets is lawful, routine and substantial work: choosing the right configuration for the mission set, proving compatibility with the equipment a force already holds, building the charging and analysis chain behind it, training the users and the quality staff, and running the records that follow every serial number through its life. What no supplier may do — and what we do not do — is self-declare a set's conformity, apply an approval label, or present a certified article as its own product. The same rule appears on our breathing-air page for industrial rescue sets, because it is the same rule everywhere: certification belongs to the factory that earned it, and a supplier who is vague about that boundary is the one to examine closely.

Q · 03 What makes field charging different from filling cylinders at a base?

Nothing about the standard, and everything about the circumstances — which is precisely the difficulty. Breathing-air quality is a measured property of the delivered gas: moisture, oil, carbon monoxide and carbon dioxide limits that do not relax because the compressor is sitting on a riverbank. A shore charging plant meets them with a fixed purification train, scheduled media changes and a laboratory nearby. A field compressor must meet the same numbers while being carried, run from field power, worked in dust and rain, and operated by a detachment rather than a plant crew. So the engineering moves into the package: purification stages sized with margin, intake placement that keeps engine exhaust out of the air supply, moisture management for humid climates, and simple, disciplined proof of the delivered gas before cylinders go to divers. The same logic covers the high-pressure side for set cylinders, boosters for rebreather oxygen and mixes, and the anti-deflagration containment in which charging happens — because a cylinder being filled is stored energy accumulating, and the safe place for it is engineered, not assumed. A detachment that can charge, analyse and prove its own gas is operationally independent. One that cannot is tethered to the nearest base by every empty cylinder.

Q · 04 Why does shelf life matter so much for diving kit?

Because most of a diving kit is rubber and fabric, and those age by the calendar whether or not they are used. Suit neoprene, mask skirts, regulator diaphragms, hoses, O-rings, counterlung material — all of them harden, crack or lose elasticity over years in storage, and a kit that has sat untouched in a store can be less airworthy, so to speak, than one that has dived every week and been serviced for it. That is why serious procurements manage shelf life as a first-class property: manufacture dates recorded per item, storage conditions specified, calendar-based inspection and replacement rather than usage-based alone, and defect investigation that runs jointly between buyer and supplier through warranty and shelf life together — a pattern the forces' own tenders spell out. The operational consequence is a records system, and it is less glamorous than any rebreather: every set, suit and regulator carried by serial number, its service history, its elastomer ages, its next inspection due. We treat that records discipline as part of the equipment, because a force that cannot say which of its two hundred sets are within life does not actually know how many sets it has.

Q · 05 How do forces actually buy this class of equipment?

With a pattern that has hardened over many procurements, and it rewards preparation more than salesmanship. First comes clause-by-clause compliance: the specification is answered line by line, with any deviation stated in unambiguous terms — a document that takes real engineering time and cannot be faked at the deadline. Then technical evaluation of the paperwork, and for bidders who pass it, the step that makes this class distinctive: a complete sample set supplied at the bidder's own cost and risk for composite field trials, where the force's own divers use the equipment and report. Awards follow trials, not brochures. Alongside run the quiet requirements: a compatibility certificate confirming the offered kit mates with equipment the force already holds; training for the buyer's quality-assurance personnel at the maker's works, so acceptance inspection is informed rather than formal; user training with delivery; and delivery of complete sets consignment by consignment, so units receive usable capability rather than parts of one. Warranty carries a joint defect-investigation obligation, and shelf-life support runs beyond it. It is a demanding pattern, and it should be — it is how a buyer separates suppliers who integrate diving capability from suppliers who forward boxes.

Q · 06 Has Neometrix delivered military diving kits?

Work of this class is engineered to order; the neighbouring breathing-air, cylinder-test and hyperbaric diving lines stand on this site, and no delivered military diving-kit supply is claimed. We would rather say that plainly than dress it up. What stands behind this page is the adjacent engineering, and it is checkable: the breathing-air line, where charging plants, purification trains and certified rescue sets are treated with exactly the discipline this page describes; the high-pressure cylinder-test facility line, which is where diving cylinders go to be proven; the hyperbaric and saturation diving systems line, which is the chamber side of the same world; and a high-pressure gas engineering house — compressors, boosters, manifolds, analysers, containment — whose daily work is the field-support half of this page. The honest shape of a first diving-kit contract is the one the forces' own buying pattern defines: compliance offered clause by clause, a sample set proven in the buyer's own trials, compatibility certified against in-service equipment, and training and through-life support carried in the programme. That is the basis we would bid on, and the page claims nothing more.

Q · 07 What is the anti-deflagration container actually for?

It exists because charging is the moment of maximum stored energy and maximum human proximity, and those two should never meet unprotected. A cylinder being filled to high pressure is accumulating energy continuously; a cylinder that fails at pressure releases it at once. The overwhelming majority of cylinders never fail — because they are tested on the calendar our cylinder-test page describes — but safety engineering is built for the exception, and the exception is most likely at charging, when pressure, temperature and handling all peak together. So charging and storage happen inside engineered containment: a structure designed to catch and vent a failure so that an event inside it stays inside it. For oxygen and oxygen-rich mixes the argument sharpens further, because oxygen systems add fire risk to pressure risk — cleanliness, compatible materials and controlled charging rates are part of the same safety case. The container is therefore not packaging but plant: sized to the cylinders, arranged for the charging workflow, and treated as the piece of the gas chain whose job everyone hopes is never demonstrated. Buying it alongside the compressors — rather than after an incident — is the cheap ordering of events.

Q · 08 How does this page relate to the breathing-air, cylinder-test and hyperbaric pages?

They are four rooms of one house, and the doors between them are deliberate. This page is the diver's own world: the sets and personal kit, the diver systems, and the field gas chain that travels with a unit. The breathing-air page is the fixed-plant world — shore charging installations, purification trains and the certified rescue sets used in industry and mine rescue — where the certified-versus-engineered split this page uses was first written down. The HP air bottle test facility page is where cylinders themselves are proven: the periodic hydrostatic testing that every diving cylinder on this page depends on but which is its own engineering discipline with its own equipment. And the hyperbaric and saturation diving systems page is the chamber world: recompression and treatment chambers and the saturation systems behind deep, long-duration work — medically and mechanically a different machine class entirely. Splitting them keeps each page honest about what it covers, and the cross-links exist because a real diving capability buys from all four rooms: kit from here, charging depth from the breathing-air line, cylinder proof from the test facility, and chamber cover from the hyperbaric line. A force equipping from scratch will meet all four pages; a force filling one gap can land on exactly the right one.

The air, the bottle, and the chamber.

The other three rooms of the diving house.

↗ The air

Breathing Air Systems & Rescue Sets

Fixed charging plants, purification trains and certified rescue sets — the shore-plant half of this world.

↗ The bottle

HP Air Bottle Test Facility

Where every diving cylinder goes to be proven, on the calendar the rules set.

↗ The chamber

Hyperbaric & Saturation Diving Systems

Recompression chambers and saturation systems — the deep and medical end of diving.

Browse all Neometrix product lines.

Get a quotation

Tell us the divers, the missions,
and what the force already holds.

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 — diving equipment Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — MILITARY DIVING EQUIPMENT & DIVER SUPPORT CERTIFIED SETS · FIELD GAS ENGINEERING · CONTAINMENT · TEST · THROUGH-LIFE ENGINEERED IN NOIDA · INDIA

The dive lasts an hour. The support chain runs all year.

Two kinds of breathing set, and one reason bubbles matter.

Open circuit: simple and proven

Rebreathers: long, quiet, small

Why this defines the support chain

Sets, systems, support — one working whole.

The sets

The personal kit

Diver systems

Field gas engineering

Safe containment

Proof and through-life

What a diving programme contains, element by element.

A kit, a detachment, or a whole capability.

Complete diver sets

Kits plus field support

The full programme

Wherever the work is under the surface.

Military diving units

Naval diving teams

Rescue and disaster response

Police and security diving

Remote and high-altitude sites

Training establishments

Common questions.

The air, the bottle, and the chamber.

Breathing Air Systems & Rescue Sets

HP Air Bottle Test Facility

Hyperbaric & Saturation Diving Systems

Tell us the divers, the missions,
and what the force already holds.

Similar Products

Share This Page

The dive lasts an hour. The support chain runs all year.

Two kinds of breathing set, and one reason bubbles matter.

Open circuit: simple and proven

Rebreathers: long, quiet, small

Why this defines the support chain

Sets, systems, support — one working whole.

The sets

The personal kit

Diver systems

Field gas engineering

Safe containment

Proof and through-life

What a diving programme contains, element by element.

A kit, a detachment, or a whole capability.

Complete diver sets

Kits plus field support

The full programme

Wherever the work is under the surface.

Military diving units

Naval diving teams

Rescue and disaster response

Police and security diving

Remote and high-altitude sites

Training establishments

Common questions.

The air, the bottle, and the chamber.

Breathing Air Systems & Rescue Sets

HP Air Bottle Test Facility

Hyperbaric & Saturation Diving Systems

Tell us the divers, the missions,and what the force already holds.

Similar Products

Share This Page

Tell us the divers, the missions,
and what the force already holds.