settingsHeat Exchangers and Compressors

Heat Exchanger Fabrication and Compressor Overhauling in Riyadh.

Fabrication, overhaul, repair and testing for industrial and HVAC equipment. When a compressor fails or a heat exchanger loses efficiency, we get your plant running again with tested results and clear reports.

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warehouseWorkshop and on-site service

descriptionWritten test reports

verified_userWritten warranty

local_shippingPickup and delivery

Workshop

plus on-site work

Tested

before handover

Heat Exchangers

Shell and tube heat exchanger fabrication.

A shell and tube heat exchanger transfers heat between two fluids. One fluid flows through a bundle of tubes, and the other flows around them inside a shell. They are used as condensers and evaporators in chillers, and as coolers and heaters in oil and gas, power and process plants.

We fabricate new units to match your process conditions, space and budget, and we can reverse-engineer a unit from old drawings or from the existing exchanger itself.

Types we fabricate

check_circleFixed tubesheet
check_circleU-tube
check_circleFloating head (removable bundle)
check_circleWater-cooled condensers
check_circleShell and tube evaporators (chillers)
check_circleOil coolers, intercoolers and aftercoolers

Related services

check_circleComplete re-tubing of tube bundles
check_circleTube plugging and leak repair
check_circleTubesheet, baffle and bundle replacement
check_circleGaskets, end covers and water boxes
check_circleReplication without drawings

Materials: carbon steel, stainless steel (304 and 316), copper, cupronickel (90/10 and 70/30) and admiralty brass. We choose the material based on your fluid, temperature, pressure and water quality to control corrosion and fouling.

Design standards: units can be built to TEMA and ASME Section VIII requirements when your project specifies them, with material certificates and test documentation.

Industries: HVAC chillers, district cooling, oil and gas, petrochemical, power and desalination, food and beverage, water treatment and marine.

Shell and tube heat exchanger tube bundle pulled out for inspection

Heat exchanger tubesheet with cleaned and scaled tube ends

Technician inserting new copper tubes during heat exchanger re-tubing

Screw Compressors

Screw compressor overhauling.

Semi-hermetic screw compressor opened for overhaul

Male and female screw compressor rotors on a workbench

Screw compressors run for long hours in chillers, refrigeration plants and compressed air systems. Over time, bearings, shaft seals and rotors wear, the slide valve sticks and efficiency drops. A professional overhaul restores cooling capacity and reliability, often for far less than a new compressor.

What our screw compressor overhaul includes

check_circleFull teardown and cleaning of all components
check_circleInspection and measurement of male and female rotors
check_circleReplacement of radial and thrust bearings
check_circleReplacement of shaft seals, O-rings and gaskets
check_circleSlide valve and capacity control inspection and repair
check_circleOil system, oil separator and oil filter service
check_circleMotor winding insulation test (megger) and terminal inspection
check_circlePrecision reassembly with correct clearances
check_circlePressure test, run test and performance check

Applications: air-cooled and water-cooled chillers, ammonia and freon refrigeration plants, and industrial air compressors.

Brands: Bitzer, Hanbell, RefComp, Carrier, York, Trane, Daikin (McQuay), Grasso, Frick and others.

Reciprocating Compressors

Reciprocating compressor overhauling.

Reciprocating compressors are common in cold rooms, supermarket racks, older chillers and industrial processes. Worn valves and piston rings cause low capacity, high oil consumption and overheating. Our overhaul brings them back to specification.

What our reciprocating compressor overhaul includes

check_circleComplete disassembly and cleaning
check_circlePistons, piston rings and cylinder liners
check_circleSuction and discharge valve plates and reeds
check_circleCrankshaft, connecting rods and bearings
check_circleOil pump, oil strainer and crankcase heater checks
check_circleUnloader mechanism service
check_circleMotor insulation test for semi-hermetic compressors
check_circleReassembly, pressure test and load run test

Brands: Bitzer, Copeland, Carrier, Dorin, Sabroe, Bock, Frascold and others.

Disassembled reciprocating compressor with pistons and connecting rods

Old carbon-coated and new compressor valve plates side by side

Repair, Testing and Maintenance

Testing and maintenance that catch problems early.

Regular inspection and testing stop small faults before they turn into costly breakdowns.

Pressure gauge during a hydrostatic test of a heat exchanger

speed

Pressure and leak testing

check_circleHydrostatic pressure testing
check_circlePneumatic pressure testing
check_circleRefrigerant and water-side leak detection
check_circleEddy current tube testing where required

Vibration analyzer checking a compressor motor bearing

monitor_heart

Condition monitoring

check_circleVibration analysis on compressors and motors
check_circleOil analysis for wear and contamination
check_circleMotor winding and insulation resistance tests

cleaning_services

Cleaning and maintenance

check_circleMechanical tube cleaning (brushing and rodding)
check_circleChemical descaling of condensers and evaporators
check_circlePreventive maintenance contracts
check_circleEmergency breakdown repair

Maintenance contractsarrow_forward

Every job ends with a written service report that records findings, parts replaced, test results and recommendations.

Warning Signs

Signs your compressor or heat exchanger needs service.

settings

Compressor warning signs

check_circleUnusual noise, knocking or high vibration
check_circleOil carryover or high oil consumption
check_circleLow cooling capacity or low discharge pressure
check_circleHigh discharge temperature
check_circleFrequent tripping on high pressure, low pressure or overload
check_circleRising power consumption for the same load
check_circleHigh running hours since the last overhaul

heat

Heat exchanger warning signs

check_circleHigh approach temperature or poor heat transfer
check_circleRising condensing pressure in chillers
check_circleRefrigerant or water leaks
check_circleCross-contamination between fluids
check_circleScaling, fouling, corrosion or tube erosion
check_circleHigher pressure drop across the unit

Oil stain around a compressor shaft seal

If you notice any of these, book an inspection. Early action usually means a smaller repair bill and less downtime.

Overhaul or Replace?

Should you overhaul or replace your compressor?

This is often the biggest decision for plant managers. Here is a simple comparison.

Factor	Overhaul	Replace
Cost	Usually a fraction of a new unit	Full equipment cost plus installation
Lead time	Days to a few weeks	Imported units can take weeks or months
System changes	None. It fits exactly as before	May need piping, electrical and control changes
Downtime	Short, and planned around your operation	Longer, especially with new foundations
Best when	Casing and major parts are in good condition	Casing is cracked, or the model is obsolete with no parts

After inspection, we give you an honest recommendation. If replacement makes more sense, we will tell you.

Plant Manager Guide

What plant and facility managers should know.

water

Hard water and scale

Riyadh water contains a lot of calcium and minerals. In water-cooled condensers, this builds scale inside the tubes, raises condensing pressure and wastes power. Good water treatment and scheduled tube cleaning prevent most of it.

thermostat

Signs to track on your plant

Operators should log suction and discharge pressures, oil pressure, approach temperature, amps and vibration. A slow trend in these numbers warns you weeks before a breakdown.

oil_barrel

Oil analysis

A small oil sample sent to a lab shows metal wear, moisture and acid. It is one of the cheapest ways to catch bearing and rotor damage inside a screw compressor early.

schedule

Planning around summer

Compressor overhauls and re-tubing are best done in winter or spring, before the cooling season. A failure in July means lost production, unhappy tenants and rush pricing for parts.

Our Process

How our overhaul process works.

Inspection

We check the equipment on site or at our workshop and review its operating history and running hours.

assignment

Diagnosis report

We explain what is wrong, supported by measurements and photos.

request_quote

Quotation

You receive a clear, itemized price and turnaround time before any work begins.

handyman

Disassembly and repair

We replace worn parts or machine them back to specification, using genuine or OEM-equivalent parts.

fact_check

Reassembly and load test

We reassemble to correct clearances, then pressure test and load test the unit.

verified

Report and warranty

You get the equipment back with a test report and a written warranty.

Workshop and Equipment

Our workshop and capabilities.

Our Riyadh workshop is set up for heavy mechanical work, so most jobs are done in-house under our own supervision.

check_circleWelding for carbon steel, stainless steel and copper alloys
check_circleMachining and precision measurement tools
check_circleTube expanding and re-tubing equipment
check_circlePressure testing bench
check_circleLifting equipment for heavy compressors and bundles

For large or critical equipment, our team can also work on site to reduce downtime.

Welder working on a steel pressure vessel shell

Brands We Service

Compressor brands we overhaul.

BitzerHanbellRefCompCarrierYorkTraneDaikin / McQuayGrassoFrickCopelandDorinSabroeBockFrascold

Industries We Serve

Industries that rely on our equipment services.

mode_fan

HVAC and district cooling

Chiller condensers, evaporators and compressors.

kitchen

Cold storage and refrigeration

Compressor racks and condensing units.

oil_barrel

Oil, gas and petrochemical

Process coolers and heat exchangers.

bolt

Power and desalination

Lube oil coolers and auxiliary exchangers.

lunch_dining

Food and beverage

Process cooling and refrigeration plants.

medication

Pharma and healthcare

Critical cooling equipment.

factory

Factories and manufacturing

Air compressors and process equipment.

apartment

Hotels, malls and hospitals

Central plant equipment.

Stories From the Field

Common plant problems and how we solve them.

What plant and facility teams were facing, and how our team handled it.

Real project photo: screw compressor overhaul

Screw compressorHospitalOverhaul

A chiller compressor shaking the plant room

location_onHospital chiller plant, Riyadh

What they were facing

One of three screw compressors was running with heavy vibration and had lost a big part of its capacity. The other two were carrying the whole building in peak summer, and the engineering team was worried a second unit would fail.

How the day went

Day 1Vibration and oil readings taken on site, compressor isolated.
Day 2Compressor lifted out and brought to our workshop.
Day 3 to 7Teardown, rotor inspection, new bearings and seals, slide valve repair.
Day 8Load tested, returned and reinstalled overnight.

How our team handled it

We planned the removal at night so the hospital never lost cooling in critical areas, and shared photos of worn bearings so the engineers could see exactly what failed.

task_alt

Capacity was restored, vibration dropped back to normal levels, and the hospital avoided a long wait for a new imported compressor.

Re-tubingCondenserTesting

A condenser that kept leaking into the water loop

location_onCommercial tower, Riyadh

What they were facing

A water-cooled chiller kept losing refrigerant, and the condensing pressure crept higher every week. Tube leaks had been plugged twice before, and the problem kept coming back.

How the day went

Visit 1Pressure test and eddy current check showed many thinned tubes.
Week 1Old tube bundle removed and tubes cut out.
Week 2New copper tubes fitted and expanded, tubesheet cleaned.
HandoverHydrostatic test passed and report issued.

How our team handled it

Instead of plugging more tubes and losing capacity, we recommended a full re-tube and a water treatment review, since scale was the root cause.

task_alt

The leaks stopped, condensing pressure dropped back to normal, and the client added quarterly tube inspections to its maintenance plan.

FabricationFactoryReverse engineering

A process cooler with no drawings

location_onFactory in the Second Industrial City

What they were facing

An old shell and tube oil cooler was badly corroded and leaking. The original manufacturer no longer existed, and there were no drawings to order a replacement.

How the day went

Day 1Site visit, full measurements, photos of nozzles and supports.
Week 1Reverse-engineered design shared for approval.
Weeks 2 to 4Fabrication in our workshop with upgraded tube material.
DeliveryPressure tested and delivered with test certificate.

How our team handled it

We matched every nozzle position and support so the new unit bolted straight into the existing pipework, and upgraded the tubes to handle the factory's water quality better.

task_alt

The new cooler dropped straight into place with no pipe changes, and the leaks are gone.

These stories are based on the kinds of calls our team handles across Riyadh. Timelines vary with site access and parts availability.

Quality and Warranty

Quality, certifications and warranty.

verified

Registered Saudi company

CR 7004316456 and VAT registered.

engineering

Qualified team

Experienced welders and mechanical technicians.

description

Test certificates

Pressure test report with every fabricated or re-tubed unit.

inventory_2

Quality parts

Genuine or high-quality replacement parts.

verified_user

Written warranty

On overhauls and fabrication work.

FAQs

Questions about heat exchangers and compressor overhauling.

How often should a screw compressor be overhauled?add

It depends on the brand, operating conditions and maintenance history. Many manufacturers recommend a major inspection or overhaul at set running-hour intervals, so check your compressor manual. Warning signs such as vibration, oil carryover or capacity loss mean it is time for an inspection whatever the running hours.

How long does a compressor overhaul take?add

Most overhauls take several working days, depending on the compressor size, the damage found and parts availability. You get the exact turnaround time in your quotation, and urgent jobs for critical equipment can be prioritized.

Is overhauling cheaper than buying a new compressor?add

In most cases, yes. When the casing and major components are in good condition, an overhaul costs much less than a new unit and avoids long import lead times. If replacement makes more sense, we will tell you honestly.

Do you provide a warranty after overhaul?add

Yes. Our overhauls and fabrication work come with a written warranty covering workmanship and replaced parts. The warranty period is stated on your quotation.

Can you fabricate a heat exchanger without drawings?add

Yes. We take measurements from your existing unit, check the tube count, tube size, pass arrangement and nozzle positions, and reverse-engineer a replacement that fits your system.

Can you re-tube a heat exchanger on site?add

Yes, for many units, depending on access, size and the type of tubesheet joint. We confirm this during the inspection.

What tests do you perform, and will I get a report?add

We carry out hydrostatic or pneumatic pressure testing, leak testing and run testing, plus vibration, oil or insulation testing where needed. You receive a written report with every job.

Do you offer pickup and delivery?add

Yes. We can arrange removal, transport to our workshop and reinstallation of your equipment in Riyadh. Projects outside Riyadh are available on request.

Why is my chiller using more power than before?add

The most common cause is fouling and scale inside the condenser or evaporator tubes. Riyadh water is hard, and even a thin layer of calcium scale raises the approach temperature and the kW per ton (kW/TR). Tube cleaning or chemical descaling, plus proper water treatment, usually brings consumption back down.

What is approach temperature, and why does it matter?add

Approach temperature is the difference between the refrigerant temperature and the leaving water temperature in a condenser or evaporator. When it rises over time, heat transfer is getting worse, usually because of scale, fouling or low refrigerant. It is one of the best early signs that a heat exchanger needs cleaning.

Should I keep adding refrigerant if my compressor keeps losing gas?add

No. Topping up without fixing the leak wastes money, harms the environment and can damage the compressor. The leak should be found, repaired and pressure tested before recharging.

What does eddy current testing show?add

Eddy current testing checks each heat exchanger tube for wall thinning, pitting and cracks without cutting it open. It tells you which tubes to plug or replace before they leak, and helps you plan re-tubing.

Which compressor brands do you overhaul?add

We work on common refrigeration and air compressor brands, including Bitzer, Hanbell, RefComp, Carrier, York, Trane, Daikin, Grasso, Copeland, Dorin, Sabroe, Bock and Frascold.

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