Shell and Tube Heat Exchangers
Designed in HTRI and PV Elite and built to TEMA and ASME VIII, including units with expansion bellows and 400 mm tubesheets.
View specifications
ASME · ISO certified Exporting to UAE, Saudi Arabia, Oman, Qatar, Kuwait & Bahrain
Heat exchanger manufacturer supplying the UAE, Saudi Arabia and the GCC
Since 1989 we have designed and built shell and tube, air cooled and hairpin heat exchangers, pressure vessels and columns in Coimbatore, India. Our equipment already runs for ADNOC, PDO Oman, Kuwait Oil Company and QAPCO. You deal directly with the factory, and both our units hold ASME U and National Board authorisations plus ISO 9001, 14001 and 45001.
- Factory-direct pricing
- ASME U & U2 stamped
- Shipped to any GCC port
Shell & Tube · TEMA AESLive flow
Process fluid · shell side
Cooling water · tube side
Shell inlet180 °C
Heat duty4.2 MW
What we make
View all products Heat transfer and static equipment for the energy sector
Heat exchangers, pressure vessels, columns and skid packages, designed in HTRI and PV Elite and built under our ASME stamps.
Air Cooled Heat Exchangers (Fin Fan Coolers)
API 661 air cooled exchangers with our own extruded and embedded finning lines, supplied to ADNOC, PDO Oman and NNPC.
View specifications
Hairpin Heat Exchangers
Single and multi-tube hairpin exchangers in banks, supplied to PDO Oman through Fortune Engineering.
View specifications
Kettle Reboilers
Kettle type reboilers for refinery and petrochemical columns, such as our SS 316L unit for Mathura Refinery.
View specificationsPressure Vessels & Process Equipment
Air receivers, storage tanks, evaporators, columns and skid-mounted vessel packages.
Air Receiver · Storage Tanks & Vessels · Evaporator · Columns & Reactors · Skid Packages
Industries
Where our equipment works
Oil and gas, refining, petrochemicals, fertilizers, power and industrial gases, in India, the Middle East and beyond.
Oil & Gas
Air coolers, hairpins, shell and tube exchangers and skid packages for upstream and gas processing, supplied to ADNOC, PDO Oman, Kuwait Oil Company and NNPC.
Explore
Refineries
Reboilers, stacked exchangers and condensers for refineries such as IOCL Panipat and Mathura.
Petrochemical & Chemical
Titanium columns, scrubbing towers and alloy exchangers for QAPCO, Farabi, Chemanol and Indorama.
Fertilizers
High-pressure coolers for ammonia and urea plants, like our 425 bar booster cooler for RCF.
Power Generation
Surface condensers, economizers and coolers for utilities such as NTPC, Mahagenco, TANGEDCO and KSEB, with IBR registration at both units.
Industrial Gases, Metals & Mining
Coolers, receivers and vessels for Air Liquide, Linde, Ma'aden, Qatar Steel and Vedanta.
Don't see your industry?
If it involves heat transfer or pressure, we can probably help. Tell us what you're working on.
Talk to an engineer
Services
From the first calculation to 24/7 after-sales support
Design, replacements, inspection, export shipping and support after start-up, all from one team.
View all services425 bar
Hydro test demonstratedThe highest test pressure we have demonstrated, on a booster cooler for RCF.
Thermal and Mechanical Design
HTRI thermal design and PV Elite mechanical design by a 25-member team, with datasheets and drawings sent with the quote.
Reverse Engineering and Replacements
Like-for-like replacements for exchangers and vessels from any manufacturer, built to fit your existing piping.
Replacement Tube Bundles
Tube bundles built to your drawings or old dimensions, with tubesheets drilled on our CNC machines.
Inspection, Testing and Documentation
Hydro tests up to 425 bar, witnessed by Bureau Veritas, Lloyd's Register, TÜV NORD, SGS, HSB or your own inspector.
Export Packing and Shipping
Seaworthy packing and export documents, shipped from Cochin, Tuticorin, Chennai or Nhava Sheva to GCC ports.
24/7 After-Sales Support and Site Supervision
24/7 after-sales support, spares and site supervision of installation and commissioning.
Made in Coimbatore, India
Two units, 60,000 sq ft of fabrication space
Unit I is at SIDCO and Unit II at Seerapalayam, both in Coimbatore. Between them we have CNC drilling, cutting and rolling, three extruded finning machines, an embedded finning machine, a 12 kW laser, a 500-tonne press brake and a separate bay for stainless steel and special alloys.
- Cochin port 195 km away; Coimbatore airport 20 km
- Shells rolled up to 6 m diameter and 85 mm thick
- Tubesheets drilled up to 400 mm thick, 3 m diameter
- Finned tubes up to 16 m long
Why Gulf buyers work with us
Built for heat, salt and sand
Gulf plants run at 50 °C ambient, cool with warm seawater and often handle sour gas. We keep that in mind from the first calculation, not as an afterthought.
Designed for Gulf conditions
Design ambient up to 55 °C, seawater-grade metals, and fin fan coolers that cope with sand and dust.
Straight from the factory
You deal directly with the people who design and build your equipment, with no trading margin in between.
Certified where it counts
ASME U and U2 stamps, National Board registration, and ISO 9001, 14001 and 45001 at both factories.
Ready for export
Seaworthy packing and a complete set of export documents for any GCC port.
0+
Years since we started in 1989
0 bar
Highest hydro test we have demonstrated
0 ft²
Fabrication area across two units
0
Engineers in our process design team
“When you send us a datasheet, an engineer reads it, not a sales script. Expect a few good questions before you get a price.”
Reference projects
See all projects Recent work for the Middle East and beyond
A few of the jobs from our 2026 reference list.
Air cooledEnd user: ADNOC, UAEIncoloy 825 air cooled heat exchanger for ADNOC
Built for EPC contractor Target for ADNOC, with tube bundles in Incoloy alloy 825 for corrosive service.
TargetEPC
ADNOCEnd user
Incoloy 825MOC
Air cooledEnd user: PDO, OmanSS 316L air cooled heat exchangers for PDO Oman
Stainless steel air cooled exchangers supplied through NOV for Petroleum Development Oman.
NOVEPC
PDO OmanEnd user
SS 316LMOC
Air cooledEnd user: NNPC, Nigeria40 air cooled exchanger modules for NNPC
Forty carbon steel ACHE modules built for Global Processing Systems for the Nigerian National Petroleum Company.
GPSEPC
40Modules
CSMOC
Clients
See all clients Trusted by operators and EPC contractors worldwide
ADNOC, PDO Oman, Kuwait Oil Company, OQ, QAPCO, Ma'aden, NNPC, Indian Oil, ONGC and many more, often through EPCs such as Technip Energies, Petrofac, Saipem, Linde and thyssenkrupp.
Schematic, not to scale
Where we ship
From Coimbatore to every GCC port
Our equipment leaves Cochin or Chennai by sea and usually reaches Gulf ports in one to two weeks. Urgent spares can be flown to any GCC airport.
Unit I · Corporate Office
P.B. No 4412, C-5 Private Industrial Estate, SIDCO Post, Coimbatore, Tamil Nadu 641021, India
Unit II
142, 143, 144, Othakalmandapam Road, Seerapalayam, Bodipalayam (PO), Coimbatore, Tamil Nadu 641105, India
UAESaudi ArabiaOmanQatarKuwaitBahrain
Resources
All resources Catalogue and technical notes
Download our 2026 catalogue or read practical notes from our engineers.
Download
Company Catalogue 2026
Products, facilities, certificates, clients and reference projects in one PDF.
UNITED COOLING SYSTEMS (P) LTDEngineering Process
Equipment Since 1989
Equipment Since 1989
Choosing materials for seawater-cooled heat exchangers in the Gulf
Titanium, Cu-Ni or super duplex? How chlorides, temperature and velocity decide it.
Read articleHow a 50 °C ambient changes fin fan cooler sizing
Why design ambient is the biggest cost driver for air coolers in the region.
Coming soonWhen does a fixed tubesheet exchanger need an expansion bellow?
Differential expansion, tubesheet loads and how bellows solve them.
Coming soonWinterising air coolers for sub-zero sites
Lessons from our winterisation projects for Mongolia.
Coming soonPlanning a shutdown in the Gulf?
Tell us the date. We'll plan fabrication and shipping backwards from it, so the equipment is at your site when your team needs it.