Approvals & enlistments

American Petroleum Institute (API) Membership

API member, building heat exchangers and air coolers to API 660 and API 661 for oil and gas service. This certificate applies to both of our Coimbatore factories.

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What this certificate means

United Cooling Systems is a member of the American Petroleum Institute. Oil and gas companies in the Gulf rarely buy a heat exchanger that only meets the general pressure vessel code. Their specifications add the American Petroleum Institute standards: API 660 for shell and tube exchangers and API 661 for air cooled exchangers. These cover extra requirements for design margins, materials, nozzle loads, inspection and documentation, and we build to them whenever your specification calls for it.

What it covers

API 660: shell and tube heat exchangers
API 661: air cooled heat exchangers (fin fan coolers)
Petroleum, petrochemical and natural gas service
Additional design, inspection and documentation requirements

Why it matters for buyers in the Gulf

Approvals from major engineering consultancies and regulators show that our facilities and work have already been audited by demanding customers. For EPC contractors and operators in the Gulf, that shortens vendor prequalification and gives confidence before the first order.

Certificate details

Issued by	American Petroleum Institute (API)
Standard / scope	API 660 (shell and tube) · API 661 (air cooled)
Certificate holder	United Cooling Systems Pvt. Ltd.
Applies to	Company-wide
Certificate number and validity	Shown on the certificate. A current copy is available on request.

Questions about our certificates

Can I verify your certificates independently?

Yes. ASME and National Board authorisations can be checked on their public directories, and ISO certificates can be verified with the certification body named on the certificate. We are happy to give you the certificate numbers for this.

Which unit will build my order?

It depends on the size, type and code requirements of the equipment. We will tell you in the quotation which unit will build it and which certificates apply.