NMX‑LOXV‑1KL / Rev 00 / Cryogenic · ASME VIII · CCOE/PESO / Noida · India 2026 · Product Page

NMX-LOXV-1KL · UNDER CONTRACT — MILITARY-AVIATION LOX REPLENISHMENT

Liquid oxygen, delivered to the flight line. Tanker to aircraft converter.

Name: Liquid Oxygen Tanker Vehicle & Towable Dispenser
Brand: Neometrix

A complete mobile aircraft liquid-oxygen replenishment outfit: a road-going LOX tanker of about 1,000 litres paired with a towable 220–260 litre dispenser that charges an aircraft’s on-board LOX converter on the apron. Double-walled austenitic-stainless vessels, vacuum insulation, pressure-building coils, and a full cryogenic safety train — engineered to ASME Section VIII, the SMPV(U) Rules and CCOE/PESO type approval. Under contract for an Indian military-aircraft organisation; built in Noida.

Enquire — cryogenic ground support Capability sheet (PDF)

Representative render — liquid-oxygen tanker vehicle: a white double-walled cryogenic LOX tank on saddle mounts on a compact road truck, with a stainless rear operating cabinet of gauges and cryogenic valves, on an airbase apron

Fig · 01 The LOX tanker on its road vehicle — representative render of the contracted configuration

Tanker LOX

950–990litres · on vehicle

Dispenser LOX

220–260litres · towable

Operating Temp

−183°C · liquid oxygen

Design Pressure

250psi · tanker vessel

Certification

ASMEVIII · CCOE/PESO

ISO 9001 / 14001 Under contract — military-aviation ASME Sec VIII · SMPV(U) Rules CCOE / PESO type approval Noida · India

Overview

An aircraft breathes oxygen. Someone has to bring it.

Combat and transport aircraft carry their aircrew oxygen as liquid oxygen in an on-board converter — and that converter has to be topped up between sorties, on the flight line, safely, from equipment that keeps the LOX cold, clean and under control. That is the whole job of this outfit.

Neometrix towable liquid-oxygen dispenser unit in fabrication — white horizontal cryogenic vessel on a wheeled trolley frame with a stainless operating cabinet carrying bilingual DANGER placards

Fig · 02 The towable LOX storage-cum-dispenser unit on its wheeled trolley, in fabrication

The outfit comes in two parts that work together. The tanker is a double-walled cryogenic vessel of about 950–990 litres mounted on a road-legal diesel vehicle: it collects liquid oxygen from the supplier and carries it to the airfield. The towable dispenser — 220 to 260 litres on a wheeled trolley — is filled from the tanker through braided cryogenic hoses, then wheeled to the aircraft to charge its LOX converter through a charging coupling.

Both vessels are the same cryogenic discipline: an austenitic SS-304 inner shell inside a carbon-steel outer, with vacuum insulation holding the liquid at −183 °C. A pressure-building coil raises head pressure to move the liquid without a pump; twin relief valves, a divert ball valve and a rupture disc make sure a cryogenic fluid that expands 860-fold on boiling can never be trapped. Every wetted part is oxygen-clean and LOX-compatible.

Liquid oxygen is unforgiving — violently oxidising, deeply cold, and expanding the instant it warms. The engineering here exists so the handling is routine.

Under Contract · Military Aviation

Designed to the requirement

Designed clause-by-clause to an Indian military-aircraft organisation’s specification for a mobile LOX tanker and towable dispenser; the design is approved and the vessels are in fabrication at our Noida works, with the certification and documentation set in the delivery scope.

Certified · Pressure Vessel

The paperwork is the product

The cryogenic vessels are engineered to ASME Section VIII with the SMPV(U) Rules and CCOE/PESO type approval, third-party inspected and radiographed, with material, hydro-test and gauge-calibration certificates issued on delivery.

Complete · Turnkey Outfit

Everything the flight line needs

Tanker, towable dispenser, braided cryogenic hoses, spare charging couplings, spare rupture discs and gauges, a standard tool kit, spare wheel and operation-and-maintenance manuals — a self-contained LOX replenishment capability, not just a tank.

Architecture

From the supplier’s tank to the aircraft’s converter.

The schematic below is the whole liquid-oxygen path — road tanker, transfer, towable dispenser and the charging interface to the aircraft — with the cryogenic safety train that guards every stage.

FIG · 03LOX FLOW SCHEMATIC · TANKER · DISPENSER · SAFETY TRAIN

Fig · 03 One liquid path — double-walled tanker with pressure-building coil, safety train, towable dispenser and charging coupling to the aircraft LOX converter

Arc · 01

The Road Tanker

A 950–990 litre double-walled horizontal vessel on saddle mounts, carried on a BS-VI diesel 4×2 cab-chassis (day cabin, driver + 2, power steering, vacuum-hydraulic brakes, parking brake, RTO-registered). SS-304 inner vessel, carbon-steel outer, vacuum-perlite insulation; operating 30–80 psi, design 250 psi hydro-tested; fill and discharge ports; a funnel-drained stainless operating cabinet at the rear keeps ice-melt off the chassis.

Arc · 02

The Safety Train

Liquid oxygen expands roughly 860 times on boiling, so no volume can ever be locked in. Each vessel carries two pressure-relief valves through a divert ball valve — one path always live while the other is serviced — backed by a rupture disc, plus a manual vent. A pressure-building coil raises head pressure to transfer liquid without a pump. Every valve is a cryogenic extended-spindle type kept clear of frost.

Arc · 03

The Towable Dispenser

A 220–260 litre full-vacuum-jacketed vessel on a wheeled trolley with tyre guards and a height-adjustable towing end that drains the liquid forward for maximum use. Its own operating cabinet carries the content gauge, pressure gauge, and pressure-regulating, shutoff and relief valves; design pressure 140–150 psi, operating 40–75 psi.

Arc · 04

The Aircraft Interface

Braided metal flexible hoses (3.5–4 m, LOX-compatible) link tanker to dispenser and dispenser to aircraft. The aircraft-side hoses carry charging couplings that mate to the on-board LOX converter, with spare couplings supplied. Every part in liquid-oxygen contact is austenitic stainless or a certified LOX-compatible material, oxygen-cleaned to standard.

Holding a LOX, cryogenic-transport or aircraft-oxygen-servicing requirement? Send it across — clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference specification, as contracted.

The parameters below reflect the outfit under contract for an Indian military-aircraft organisation. Vehicle class, vessel capacities and fittings are re-scoped against your specification.

General arrangement drawing — liquid-oxygen tanker vessel mounted on a road vehicle chassis, side elevation with the double-walled tank, saddle supports, operating fittings and P&ID legend

Fig · 04 General arrangement — the LOX tanker mounted on the road vehicle (elevation)

Vehicle-mounted tanker & towable dispenser

The tanker vessel is carried longitudinally on saddle mounts over the vehicle’s ladder frame, with the operating cabinet at the rear where all gauges, relief valves and the fill and discharge ports are grouped for one-side operation. The towable dispenser mirrors the same cryogenic and safety design at a smaller capacity for hand movement up to the aircraft.

Every liquid-oxygen wetted component — vessel, pipework, valves, fasteners, hoses and couplings — is austenitic stainless steel or a certified LOX-compatible material, degreased and oxygen-cleaned so nothing in the path can react with the oxidiser it carries.

Full specification — expand

Product	Mobile aircraft liquid-oxygen replenishment outfit · road-vehicle-mounted LOX tanker + towable trolley LOX storage-cum-dispenser · design, fabrication, supply, installation & commissioning
Carrier Vehicle	BS-VI diesel cab-chassis, 4×2 · 95–105 HP, 70–80 kW @ 2700–2900 rpm, 285–310 Nm · day cabin, driver + 2 · power-hydraulic steering · vacuum-hydraulic + parking brakes · ladder frame, multi-leaf springs · overall length ≤5500 mm, width ≤2250 mm · RTO-registered
Tanker Vessel	950–990 litres LOX · double-walled horizontal, dished ends, saddle-mounted · inner SS-304 austenitic, outer + supports carbon steel · vacuum-perlite insulation
Tanker Pressure / Temp	Operating 30–80 psi, design ≥250 psi (hydro-tested) · operating −183 °C, design −196 °C
Tanker Fittings	Pressure-building (heat-exchanger) coil · two safety relief valves via divert ball valve + rupture disc · manual vent · cryogenic extended-spindle inlet/outlet valves · fill & discharge ports · pressure gauge + LOX content gauge · SS operating cabinet, uplift lockable door, funnel drain
Towable Dispenser	220–260 litres LOX · horizontal dish-ended, full-vacuum jacket · design 140–150 psi, operating 40–75 psi · two-way divert + twin safety valves + rupture disc · wheeled trolley, tyre guards, height-adjustable towing end · SS operating cabinet, front doors, content + pressure gauges + regulating/shutoff/relief valves
Aircraft Interface	2× braided metal flexible hose 3.5–4 m tanker→dispenser · 2× braided hose with charging couplings dispenser→aircraft LOX converter · 2 spare charging couplings · standard adapters & fittings
Materials	All LOX-wetted parts austenitic stainless / bronze / certified LOX-compatible · degreased & oxygen-cleaned to standard
Certification	Vessels to ASME Section VIII Div · SMPV(U) Rules · CCOE/PESO type approval · TPIA-witnessed, radiographed · material, inner-vessel pressure/hydro-test and gauge-calibration certificates
Spares & Support	Spare pressure regulator · 10× rupture discs (tanker) + 10× (dispenser) · spare gauges · standard tool kit · spare wheel · 2 sets operation, maintenance & spare-parts manuals · ≥1-year warranty from acceptance
Status	Under contract — designed to the customer’s specification, design approved, vessels in fabrication · configurable to customer specification

PDF · 1 page

LOX Tanker Vehicle & Dispenser — Capability Sheet

Tender Response

Send your specification — compliance matrix in two working days

Variants

One cryogenic discipline, many carriers.

Requirements call this a LOX bowser, a liquid-oxygen tanker, a mobile oxygen-replenishment vehicle, or an aircraft LOX-servicing unit. The cryogenic engineering answers all of them.

Var · 01

The Contracted Outfit

The ~1,000 litre road tanker plus 220–260 litre towable dispenser on this page — as engineered for an Indian military-aircraft organisation, charging aircraft LOX converters on the flight line.

Var · 02

Other Capacities & Carriers

Larger road tankers, semi-trailer LOX transports and skid-mounted stations; smaller trolley dispensers for confined dispersals — the vessel, insulation and safety train scale with the volume and the carrier.

Var · 03

Other Cryogenic Media

Liquid nitrogen and liquid argon transport and dispensing on the same double-walled, vacuum-insulated platform — each with its own material, cleaning and safety case engineered to the fluid.

Var · 04

The Wider Gas & Cryo Line

Static LOX storage-cum-dispenser units, liquid-nitrogen dewars, nitrogen and oxygen generation, and flight-line gas-charging rigs — one supplier across the airfield gas chain.

Applications

Where it serves.

Wherever aircraft breathe liquid oxygen.

A · 01Military airbases — charging aircraft LOX converters between sorties

A · 02Fighter, transport & maritime-patrol fleets — flight-line oxygen servicing

A · 03Naval air stations & forward dispersals — mobile LOX replenishment

A · 04Aircraft manufacturing & overhaul depots — ground LOX supply for testing

A · 05Industrial & medical LOX distribution — road transport and dispensing

A · 06Export air forces operating LOX-breathing aircraft — subject to Government of India authorisation

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 Why do aircraft use liquid oxygen instead of gas cylinders?

Density. One litre of liquid oxygen becomes about 860 litres of gas, so a small on-board converter holds hours of aircrew breathing oxygen in a fraction of the space and weight of high-pressure cylinders — which matters enormously in a fighter. The trade-off is that the ground crew now needs cryogenic equipment to store, transport and transfer LOX at −183 °C safely, which is exactly what this outfit provides: the aircraft gets the compact converter, and the airbase gets the tanker and dispenser that keep it charged.

Q · 02 How is this different from your 800-litre LOX dispenser?

The 800-litre unit is a static storage-cum-dispenser — it lives where the LOX is stored and dispenses from there. This outfit is mobile: a road-going tanker that fetches liquid oxygen from the supplier and drives it to the airfield, plus a small towable dispenser that is wheeled right up to the aircraft. Think of the static dispenser as the fuel point and this as the bowser and the servicing trolley together. Many airfields run both — this mobile outfit and the static 800-litre dispenser are complementary.

Q · 03 How does LOX move without a pump?

Self-pressurisation. A pressure-building coil draws a little liquid from the bottom of the vessel, warms it through an ambient heat exchanger so it boils, and returns the gas to the top — raising the head pressure until it gently pushes liquid out of the discharge line. It is elegant precisely because it has no moving parts to fail cold: the fluid’s own boiling does the work. Relief valves and the rupture disc then cap that pressure so the self-building process can never run away.

Q · 04 Why two relief valves through a divert valve, and a rupture disc?

Because trapped liquid oxygen is the hazard the whole design exists to prevent. A cryogenic vessel must never be isolated with no relief path — any heat leak boils the liquid and the pressure climbs fast. Two relief valves on a divert ball valve mean one is always protecting the vessel while the other can be tested or replaced without ever leaving it unguarded; the rupture disc is the last-ditch device that bursts if both reliefs are somehow overwhelmed. It is the same layered, no-single-failure thinking used on any serious pressure system.

Q · 05 What certification does the tanker carry?

The pressure vessels are designed to ASME Section VIII and the Static and Mobile Pressure Vessels (Unfired) Rules — SMPV(U) — with type approval from the Chief Controller of Explosives (CCOE/PESO) where the tanker falls under its purview, and third-party inspection and radiography of the welds. On delivery the vessel comes with material test certificates, an inner-vessel pressure/hydro-test certificate stating thickness and test pressure, and calibration certificates for the pressure and content gauges — the documentation that lets a customer put a LOX vehicle legally on the road and into service.

Q · 06 Can you build to our specification — and export it?

Yes — this outfit is itself a build-to-specification contract, engineered clause-by-clause to a customer’s requirement for capacities, vehicle class, fittings and certification regime. Send your requirement — tanker and dispenser volumes, carrier vehicle, aircraft converter coupling, and the pressure-vessel code and inspection regime you work to — and a compliance matrix returns within two working days. Export engagements are managed end-to-end, subject to Government of India authorisation.

↗

Gas & cryogenic systems from Neometrix.

Storage, transport, dispensing and generation engineered and manufactured at our Noida facility.

↗ Cryogenic

Liquid Oxygen Dispenser 800 L & Trolley

The static LOX storage-cum-dispenser sibling to this mobile outfit.

↗ Cryogenic

Portable Liquid Nitrogen Container / Dewar

SS-304 vacuum-insulated cryogenic dewars for LN₂ storage and transport.

↗ Flight-Line GSE

Aircraft Tyre Nitrogen Charging Rig

High-pressure nitrogen charging for the flight line.

Browse all Neometrix product lines.

Get a quotation

Send your liquid-oxygen
servicing specification.

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

Enquire — cryogenic systems Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 UNDER CONTRACT — MILITARY-AVIATION LOX ASME VIII · SMPV(U) · CCOE/PESO MADE IN NOIDA · INDIA

Liquid oxygen, delivered to the flight line. Tanker to aircraft converter.

An aircraft breathes oxygen. Someone has to bring it.

Designed to the requirement

The paperwork is the product

Everything the flight line needs

From the supplier’s tank to the aircraft’s converter.

The Road Tanker

The Safety Train

The Towable Dispenser

The Aircraft Interface

Reference specification, as contracted.

Vehicle-mounted tanker & towable dispenser

One cryogenic discipline, many carriers.

The Contracted Outfit

Other Capacities & Carriers

Other Cryogenic Media

The Wider Gas & Cryo Line

Where it serves.

Common questions.

Gas & cryogenic systems from Neometrix.

Liquid Oxygen Dispenser 800 L & Trolley

Portable Liquid Nitrogen Container / Dewar

Aircraft Tyre Nitrogen Charging Rig

Send your liquid-oxygen
servicing specification.

Similar Products

Share This Page

Liquid oxygen, delivered to the flight line. Tanker to aircraft converter.

An aircraft breathes oxygen. Someone has to bring it.

Designed to the requirement

The paperwork is the product

Everything the flight line needs

From the supplier’s tank to the aircraft’s converter.

The Road Tanker

The Safety Train

The Towable Dispenser

The Aircraft Interface

Reference specification, as contracted.

Vehicle-mounted tanker & towable dispenser

One cryogenic discipline, many carriers.

The Contracted Outfit

Other Capacities & Carriers

Other Cryogenic Media

The Wider Gas & Cryo Line

Where it serves.

Common questions.

Gas & cryogenic systems from Neometrix.

Liquid Oxygen Dispenser 800 L & Trolley

Portable Liquid Nitrogen Container / Dewar

Aircraft Tyre Nitrogen Charging Rig

Send your liquid-oxygenservicing specification.

Similar Products

Share This Page

Send your liquid-oxygen
servicing specification.