Argon Heating & Cooling System / ~200 °C hot argon · ≤45 °C cool argon / Sodium test facilities / India

CLOSED-LOOP INERT GAS · IFTM SODIUM TESTING

Argon Heating & Cooling System, delivering hot argon at ~200 °C.

An integrated, interlocked thermal-conditioning package that circulates hot inert argon to keep sodium-exposed mechanisms free of solid sodium, while a dedicated cool argon loop (≤45 °C) and cold argon injection protect seals. Blowers, buffer tanks, argon-to-air coolers and a sodium vapour trap complete the loop.

Request proposal Specifications

Argon heating and cooling system - skid-mounted argon thermal conditioning unit with large blue vessel by Neometrix

Fig · 01Argon heating & cooling skid with large vessel · illustrative view of the unit

Hot Argon

~200°C

Cool Argon

≤45°C

Heater Power

~12.5kW

Hot Buffer Tank

~3m³

Cool Buffer Tank

~2m³

Overview

Two thermal realities, one closed system.

In liquid-sodium environments, temperature control is the difference between continuous operation and a seized mechanism.

Argon heating and cooling skid with large blue vessel - full system cutout view by Neometrix

Fig · 02Full skid with large blue vessel

During IFTM (Inclined Fuel Transfer Machine) sodium testing, parts above the roof slab are heated so that no solid sodium forms on the rails, ensuring free movement of the mechanism. At the same time, temperature-sensitive regions, especially seals, must be kept cool to protect sealing integrity and prevent thermal damage.

The Neometrix Argon Heating & Cooling System delivers both at once: hot inert argon (up to approximately 200 °C) for heating, and conditioned cool argon for seal protection. Argon circulates in closed loops using high-reliability blowers, buffer tanks and engineered heat exchangers to maintain stable thermal performance.

Hot where sodium must stay liquid. Cool where seals must survive.

With redundancy on key cooling functions and continuous monitoring of temperature, pressure and flow, the system delivers the stability, safety and repeatability required for high-value sodium testing. Scope runs end to end: design and engineering, procurement, manufacturing, inspection, testing, installation, commissioning and guarantee support.

Architecture

Six subsystems, one skid.

Every subsystem is built around stable argon temperature and pressure, protected seals and safe, interlocked operation.

Sub · 01

Hot Argon Loop

Closed loop: hot buffer tank, dedicated recirculation blower, multi-bank electric heater vessel (~12.5 kW) raising argon to ~200 °C, delivery to IFTM parts, then return through the vapour trap and cooler.

Sub · 02

Cool Argon Loop

Working plus standby cool-argon recirculation blowers, ~2 m³ cool buffer tank and a ~1 kW argon-to-air cooler hold low-temperature argon for seals and sensitive interfaces.

Sub · 03

Cold Argon Injection

A conditioned tap-off flows into the annulus between the leak-tight cell and support table to block hot argon from reaching inflatable seal and sprocket-shaft regions.

Sub · 04

Sodium Vapour Trap

Installed in the return line to capture sodium vapour entrained in argon from sodium-adjacent regions, protecting blowers and downstream equipment.

Sub · 05

Coolers & Blowers

Argon-to-air coolers (~8 kW hot, ~1 kW cool) with dedicated cooling-air blowers reject heat from the circulating argon streams.

Sub · 06

Controls & Interlocks

Temperature, pressure, flow and blower-DP instrumentation with alarms, permissives and trips, integrated with the MCC / control panel.

Image Gallery

The system, up close.

Equipment views of the argon heating and cooling system, followed by control-panel and instrument detail.

Equipment

Argon heating and cooling skid with large blue vessel - full system view by Neometrix

Argon heating and cooling system blue vessel and pipework by Neometrix

Argon-to-air heat exchanger, blower and insulated duct of the argon heating and cooling system by Neometrix

Argon heating and cooling system vessel with strainer and pump by Neometrix

Control panels & instrumentation

Argon heating and cooling system electrical control panel by Neometrix

Argon heating and cooling system MCC control cabinet by Neometrix

Argon heating and cooling system control panel arrangement by Neometrix

Differential pressure gauge on the argon heating and cooling system by Neometrix

Variable-area flow meter on the argon heating and cooling system by Neometrix

Fig · 03–11Equipment views, MCC / control panels, differential pressure gauge and variable-area flow meter

Downloads

Catalog & design drawings.

Product catalog, P&ID design drawings and the engineering design set, available as PDF for procurement and technical review.

Catalog

Argon Heating & Cooling System — Product Catalog

PDF

Drawing · P&ID

Argon Heating & Cooling System — Design Drawing 1

PDF

Drawing · P&ID

Argon Heating & Cooling System — Design Drawing 2

PDF

Engineering Design Set · 5 PDFs

Engineering Design 1 (PDF) Engineering Design 2 (PDF) Engineering Design 3 (PDF) Engineering Design 4 (PDF) Engineering Design 5 (PDF)

Specifications

Full technical parameters.

Typical values for the Neometrix Argon Heating & Cooling System; final ratings are set per facility.

Hot argon setpoint	~200 °C (controlled heater outlet temperature)
Cooling target (seal protection)	Typically ≤45 °C (seal limits often specified ≤65 °C)
Operating pressure	Controlled low gauge pressure (order of mbar(g), depending on facility)
Hot buffer tank volume	~3 m³
Cool buffer tank volume	~2 m³
Heater vessel power	~12.5 kW (multi-bank arrangement)
Hot argon-to-air cooler duty	~8 kW
Cool argon-to-air cooler duty	~1 kW
Cooling-air blower (hot cooler)	~2650 m³/hr @ ~300 Pa (typical)
Cool argon recirculation blowers	~65 m³/hr @ ~5500 Pa (2× for redundancy)
Piping	Carbon steel argon piping (commonly 4-inch), insulated hot lines

Applications

Where it runs.

From sodium test facilities to nuclear R&D laboratories.

A · 01Sodium test facilities for IFTM and fuel handling mechanism testing

A · 02Seal protection systems in liquid-metal cooled reactor test loops

A · 03Thermal conditioning of sodium-exposed mechanical assemblies

A · 04Argon-based heating/cooling for nuclear R&D laboratories

A · 05Controlled inert-gas temperature management in hot cell environments

A · 06Testing of high-temperature motion systems under low-pressure argon

A · 07Seal and interface protection during thermal endurance testing

A · 08Specialized nuclear auxiliary system qualification rigs

In Depth

The complete technical read.

Engineering narrative covering purpose, loops, controls and components.

Why it is critical

Preventing sodium solidification and motion loss: the heating loop keeps critical mechanical interfaces free of solid sodium deposits, so the pot/rails interface moves freely.
Protecting seals: inflatable seals and sprocket-shaft sealing regions cannot tolerate high temperature; cold argon injection stops hot argon reaching them and reduces costly seal replacement.
Stable low-pressure operation: the system operates at controlled low gauge pressures, so pressure control, buffering and leak-tight operation are essential for repeatable thermal performance.
Contamination control: a sodium vapour trap in the return path prevents vapour carryover into recirculating equipment.

Hot argon heating loop

Buffering & pressure stability: the hot buffer tank provides gas inventory and pressure stability; make-up argon maintains set pressure.
Recirculation: a dedicated hot argon blower drives continuous flow through heater, supply header and return path.
Cold injection tap-off: a small conditioned flow is tapped to the annulus between the leak-tight cell and support table to prevent hot argon ingress to seal regions.
Electric heater vessel: multi-bank heating raises argon to ~200 °C with controlled ramp-up.
Heat delivery: hot argon heats IFTM parts; a trickle flow may serve local regions such as sprocket areas.
Return: argon passes the vapour trap and an argon-to-air cooler, returning to ~45 °C before recirculation.

Argon cooling loop

Redundant cool-argon recirculation blowers (working + standby) for high availability of seal protection.
Cool buffer tank for pressure stability and gas inventory.
Argon-to-air cooler and dedicated cooling-air blower to maintain required low temperatures.
Cold argon injection arrangement to block hot gas migration into inflatable seal locations.

Instrumentation, control & interlocks

Temperature: indication and alarms at heater inlet/outlet and cooler inlet/outlet; monitoring at critical points (e.g., RSL outlet, seal inlet/outlet); heater power modulation to hold outlet temperature, with high-temperature trips.
Pressure: transmitters/indicators on buffer tanks with staged high/low alarms; automatic make-up/vent control valves.
Flow: flow measurement on critical lines with low-flow alarms; heater trip on low argon flow.
Blower health: differential pressure indication across argon and cooling-air blowers.
Typical interlocks: argon recirculation blower starts only if the cooling-air blower is running; heater trips on low flow, high outlet temperature and/or blower trip; automatic standby start of cooling-air blower on working blower trip (where configured).

Major components

Heating: hot argon recirculation blower; heater vessel (~12.5 kW, multi-bank); hot buffer tank (~3 m³); hot argon-to-air cooler (~8 kW) with cooling-air blower; sodium vapour trap.
Cooling: 2× cool argon recirculation blowers; cool buffer tank (~2 m³); cool argon-to-air cooler (~1 kW) with cooling-air blower; cold argon injection distribution.
Common: carbon steel argon piping (commonly 4-inch); manual and pneumatically actuated isolation valves and dampers; instrumentation fittings, manifolds, pressure relief and safety accessories as per design.

Typical operating sequence

Start cooling-air blowers and verify permissives for safe heat rejection.
Stabilize system pressure using buffer tank control and make-up/vent valves.
Start argon recirculation blower(s) and confirm stable circulation and DP indications.
Ramp heater output under closed-loop temperature control to deliver hot argon (~200 °C).
Maintain seal protection using the cool argon loop and/or cold argon injection.
Operate continuously with alarms, trips and automatic standby switching (where configured).

Watch

See it in operation.

Video from Neometrix Defence Limited: Argon Heating and Cooling System.

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 What is an argon heating system used in sodium test facilities?

An argon heating system is used in sodium test facilities to prevent sodium solidification on mechanical components. In systems like IFTM argon heating, high-temperature argon recirculation maintains controlled thermal conditions while ensuring safe operation in inert environments.

Q · 02 How does an argon cooling system protect seals and sensitive components?

An argon cooling system supplies conditioned inert gas to temperature-sensitive areas such as seals. This seal cooling system prevents overheating by isolating hot zones using controlled cold argon injection within a closed-loop gas circuit.

Q · 03 What is an argon heating and cooling skid?

An argon heating and cooling skid is a packaged, modular system integrating heaters, coolers, blowers, buffer tanks, and controls. It enables precise argon temperature control for both heating and cooling within a single engineered skid.

Q · 04 Why is closed-loop argon circulation important?

Closed-loop argon circulation ensures stable temperature, pressure control, and minimal argon consumption. It also prevents contamination while enabling continuous high-temperature argon recirculation in critical industrial and nuclear test applications.

Q · 05 What is an inert gas conditioning system?

An inert gas conditioning system regulates argon temperature, pressure, and flow to match process requirements. It typically includes an argon temperature control unit, gas heat exchangers, and automated safety interlocks.

Q · 06 How does high temperature argon recirculation work?

In high temperature argon recirculation, argon is electrically heated, delivered to process zones, and then cooled using an argon-to-air cooler before returning to the loop, ensuring thermal stability and component protection.

Q · 07 What role does a gas heat exchanger skid play in the system?

A gas heat exchanger skid removes excess heat from circulating argon using air-cooled heat exchangers. It is a core part of both industrial argon heater systems and argon cooling circuits.

Q · 08 Why are buffer tank gas systems required?

A buffer tank gas system stabilizes pressure and provides argon inventory during transient conditions. Separate hot (about 3 m3) and cool (about 2 m3) buffer tanks ensure smooth operation under low-pressure, closed-loop conditions.

Q · 09 What is the function of a sodium vapour trap?

A sodium vapour trap captures sodium aerosols and vapours carried by returning argon. This protects blowers, heat exchangers, and downstream equipment in sodium test facility gas systems.

Q · 10 Where are industrial argon heaters typically used?

An industrial argon heater is commonly used in nuclear test rigs, sodium test facilities, and inert atmosphere systems where precise heating, controlled cooling, and safe argon handling are critical.

Q · 11 What after-sales support does Neometrix provide for the Argon Heating & Cooling System?

Neometrix's scope covers design and engineering, procurement, manufacturing, inspection, testing, installation, commissioning, and guarantee support for the Argon Heating & Cooling System.

Q · 12 How can I get a quotation for the Argon Heating & Cooling System?

You can request a quotation by contacting Neometrix Engineering Pvt Ltd through https://neometrixgroup.com/contactus or by phone at +91-7777-876-876.

Get a proposal

Tell us your temperature, flow
and facility requirements.

We configure heater, coolers, buffer tanks and interlocks to your sodium test facility and walk through documentation with your project team.

Request proposal +91 7777 876 876

Argon Heating & Cooling System, delivering hot argon at ~200 °C.

Two thermal realities, one closed system.