Heat Exchangers

Listing ID #4307996

Ascent undertakes design, manufacture, testing, certification and code stamping of shell and tube heat exchangers, air cooled heat exchangers, air cooled condensers etc. to ASME Sec VIII Div 1, TEMA, API 660 / API 661. Also we design and manufacture plate fin heat exchangers such as steam coil air preheaters. Various applications include process gas coolers, lub oil coolers, HP / LP Heaters, Condensers etc. to customer specifications. JKE has a team of competent design engineers, design associates and draftsmen experienced in the field. Thermal design of heat exchangers can be performed using either proprietary software like HTRI or custom developed spread sheets. Generally PV Elite supplemented with custom developed spread sheets is used for mechanical design and latest version of Autocad for drafting. Finite element analysis, stress analysis, vibration analysis etc. can also be carried out by our design associates.

Materials of construction range from carbon steel through stainless steel including exotic metals like SMO (6% Mo), Duplex/Super Duplex Stainless Steel, Hastelloy, Inconel, Incolloy, Titanium, Cu Ni etc. For material preparation, we have a CNC profile cutter with plasma and oxy fuel torches. We can roll shells up to 25 mm thick and 2 M wide and above this capacity we are doing rolling at our approved vendor's workshops. Cold working is maximized with CNC band saw, Universal Steel Worker etc by 3rd party approved vendor.

We have a wide range of welding manipulators .We have the entire range of welding gear viz., SAW, SMAW, GTAW and FCAW welding machines. We also have BugO Speed Weaver welding oscillator for GTAW / FCAW and custom developed jigs for tube to tube sheet welding. There are also baking and holding ovens for welding electrodes and flux, apart from portable quivers for welders and welding operators. For stainless steel and exotics, there is a purpose built, segregated area.

We have a well equipped machine shop. Exotic metals are handled using stringent material control and handling procedures and work is carried out in controlled environment. We carry out post weld heat treatment / stress relieving in temporary purpose built temporary furnaces within our facility or in gas fired furnaces at a specialist subcontractor ’s premises of pressure vessels. Semi automatic and manual FCAW is used for welding of saddles, supports and stiffeners.

Heat exchanger tubes, plain and finned, straight as well as U tubes are available from local suppliers. There are reputed manufacturers in our approved suppliers list, including some with R/D 1.0 bending capability. For tube expansion, we have state of the art digital wattage controller and sets of expanders and mandrels of various sizes. Tube end facing, beveling can be done using portable ID mounted machines at our approved vendor's workshop.

Hydro testing up to 600 bar can be done with or without chart recorders. Pneumatic testing and / or helium leak testing could also be done by approved 3rd party.

Country specific compliance certification such as that for Malaysia, Singapore, Australia etc. can also be arranged through authorized third party inspection agencies such as Bureau Veritas. This would facilitate seamless integration of our equipment into the project in the country of installation.

We have an extensive range of WPQRs to ASME Sec IX and EN ISO 15614 covering a wide range of materials, thicknesses, processes and other variables. All our WPQRs are witnessed and certified by third party inspection agencies such as Bureau Veritas, TUV Nord etc. Welders could also be qualified in presence of third party inspection agencies if it is a requirement. If Client requires us to appoint an independent third party inspection or certification agency, it could be arranged.

Management team has extensive experience in the heavy engineering industry within and outside India, especially with multi national companies, EPC global contractors, service providers etc. We have competent QC Inspectors, AWS/CSWIP 3.1/3.2 Certified Welding Inspectors, In short, you are assured of a truly world class service within India. For a list of heat exchanger projects recently executed / in progress,