Loop consumables and instruments

Consumables and instruments for the liquid cooling loop

The real risk in a liquid cooling loop is sealing reliability, not heat rejection capability.

We supply the loop, not the CDU. No coolant distribution units, no cold plates.

Position resolution 0.1m

Detection length 500m

Ask for the specification sheet

Secondary loop assembly on a bench, with the supply and return manifolds and a jumper hose run in view

Loop assembly · supply and return manifolds

The argument

Where a liquid cooling loop actually fails

Heat rejection is sized once, from published curves, at design time. Sealing degrades continuously, through eight mechanisms.

Compression set and cold flow

Temperature and clamp load. Months to years.

Permeation and evaporation loss

Coolant chemistry, wall thickness, temperature. Continuous.

Elastomer swell or shrinkage

Wrong glycol concentration or wrong elastomer. Weeks.

Ozone and UV cracking

Ambient ozone and UV. Years.

Thermal-cycling fatigue at the joint

Start and stop events. Thousands of cycles.

Galvanic corrosion at dissimilar-metal fittings

Conductivity, chloride, mixed metals. Months.

Particulate abrasion of the seal face

Filtration state. Weeks.

Water hammer and pressure transients

Pump control and valve actuation. Instantaneous.

Every mechanism on that list is either observed by an instrument or slowed by a consumable.

Product lines

Route to the line your question belongs to

Six lines cover the loop, each indexed by its deciding number.

Secondary loop in service, with pipework, a pump skid and a run of sensing cable entering the frame — Secondary loop · pipework and sensing cable

Each line and its deciding number.
Deciding number	Product line	What it covers
0 to 500 m	Leak detection	Detection length per channel. Position resolution 0.1 m.
1 µm	Coolant filtration and water quality	Absolute rating in the cartridge range, with conductivity and pH.
200 psi	EPDM hose and piping	Working pressure −40 to +99 °C, UL 94 V-0 compound.
1.0 to 12 W/m·K	Thermal interface materials	Four material classes, from thermal grease to graphene pad.
5 measurements	CDU telemetry instruments	Supply and return temperature, flow, differential pressure, level and leak.
ISO 4406 17/15/12	Fill and flush	Flush to a target cleanliness code before first power-up.

Instrumentation

What the loop has to be measured for

Six measurements carry the argument. Each answers a failure that stays invisible until a floor tile is wet.

Points 1 to 6 match the table rows

One instrument per measurement.
Measurement	Instrument	Tells you	Prevents
Leak position	Locating sensing rope	Where, to 0.1 m position resolution	A wet floor tile three racks away
Conductivity	Inline transmitter	Inhibitor depletion and make-up water ingress	Accelerated galvanic corrosion
pH	Inline transmitter	Coolant breakdown	Elastomer attack
Differential pressure	Transmitter across the filter	Filter loading	Flow starvation and hot spots
Flow	Inline meter	Loop balance	A pump running against a closed valve
Liquid level	Level sensor	Make-up rate	Running the reservoir dry

Thermal materials

Thermal interface material being applied at a bond line, with a dispensing tool and a gloved hand in frame — Bond line · thermal grease before mating

Bought on one number, chosen for three others

Conductivity is the number on the quote. Bond-line thickness and pump-out decide whether the interface still works in year two.

Conductivity band per class

Thermal grease

1.0 to 8.5 W/m·K. Lowest bond line. Pumps out under thermal cycling.

Gap filler pad

1.5 to 6.0 W/m·K. Accommodates tolerance. Adds bond-line resistance.

Phase change

3.0 to 8.0 W/m·K. Stable at temperature. Needs a phase-transition window.

Graphene pad

5.0 to 12 W/m·K. Highest in-plane. Requires flatness control.

Loop figures

Numbers a buyer can check against a datasheet

Four figures, each with its basis.

Position resolution 0.1m

Locating sensing rope. The reported distance step.

Cartridge rating 1µm

Finest absolute rating in the cartridge range.

Hose working pressure 200psi

EPDM. Burst margin on its own row.

Measurements, one part number 5

Supply and return temperature, flow, differential pressure, level and leak.

How an order runs

From loop schedule to reorder

Five steps, each with what the buyer supplies.

Order flow · left to right

Each step, and what you send.
Step	What happens	What you send
1	We confirm the model codes.	Fluid, temperature, flow, connection sizes.
2	The datasheet pack is issued.	The codes you want quoted.
3	Sample or first-article shipment, with the inspection record.	Your acceptance criteria.
4	Production run and packaging to the agreed drawing.	The drawing revision to build against.
5	Reorder by model code. The specification does not drift.	The original model code.

Applications

Where the loop is installed

The application decides which measurement matters first.

Liquid cooling hall with rows of racks and overhead pipework seen at industry level — Cooling hall · racks and overhead pipework

Colocation

Retrofit into an occupied hall.

Hyperscale and AI training

Density changes the fluid inventory.

HPC and research

Long-lived loops, mixed generations.

Edge and telecom

Unattended cabinets, ambient swing.

Semiconductor fabrication

Water quality and particulate limits.

EV battery and power electronics

Test cells and module fixtures.

Datasheets

Representative models, one PDF each

Six model codes carry the catalogue. Each downloads as its own PDF.

EMS-LD-R100 Locating leak detection sensing rope, 100 m Position resolution 0.1 m. PDF
EMS-CF-F1-20 Pleated depth filter cartridge, 1 µm absolute, 20 in Pressure drop at rated flow. PDF
EMS-HP-E6-20 EPDM hose, −6 dash (3/8 in), 20 m coil 200 psi working, burst margin stated. PDF
EMS-TM-G30 Thermal grease, 3.0 W/m·K, 1 kg can and syringe Bond-line thickness against thermal impedance. PDF
EMS-TL-K300 Loop telemetry kit, row 100 to 300 kW Five measurements on one part number. PDF
EMS-FF-C200 Coolant fill cart, 200 L tank, above 60 L/min Two-stage filtration, achieved cleanliness code. PDF

Code convention

Ask for the specification sheet

Locating rope EMS-LD-R1 · R5 · R15 · R25 · R50 · R100 · R250 · R500
Filtration EMS-CF-F0.05-40 · F0.1-40 · F0.2-40 · F0.45-40 · F1-40 · F5-40 · F10-20 · F100-10 · S05 · S10
Hose EMS-HP-E6-20 · E6-100 · E8-100 · E16-50 · E24-50 · E32-50 · J2-06-QD · J4-06-QD · FQD-04 · FQD-08
Thermal EMS-TM-G10 · G30 · G60 · P20-10 · P50-20 · P70-20 · GR50 · GR120 · PC30 · PC85
Telemetry EMS-TL-SK · SL · SF · SDP · ST · K300 · K800 · K2300
Fill and flush EMS-FF-C120 · C200 · C500 · FL75 · FL340 · FL1300 · FS20 · FS60 · FS150

Specification request

Ask for the specification sheet

Leave your work email and the model code. One datasheet per model, with position resolution and locating repeatability stated as separate rows.

A specification table of at least ten rows per product family, and a downloadable PDF for every model listed.
Seal-life data where it decides the choice: permeation rate, compression set and fluid compatibility.
One working day for a reply, from an engineer rather than a catalogue autoresponder.