ASME SB516 Shell and Tube Heat Exchanger Monel400 Clad Trim Condenser for Atmospheric Tower

This industrial unit is a heavy-duty shell and tube heat exchanger engineered and manufactured in strict accordance with ASME pressure vessel codes. Specifically designated as an Atmospheric Tower OVHD Trim Condenser, this team heat exchanger is built for the overhead condensing loops of atmospheric distillation columns within petroleum refineries and petrochemical fractionation plants. It manages heavy hydrocarbon vapors containing high concentrations of chlorides, volatile organic acids, and sulfur compounds, maintaining full structural integrity and thermal efficiency under severe processing conditions.

Core Components & Material Specifications

Table of Nozzles:

1. N1 (Inlet ATM Tower OVHD): 12"-150# WN-RF, SCH.40+CL, ANSI B16.5

2. N2 (Outlet ATM Tower OVHD): 10"-150# WN-RF, SCH.40, ANSI B16.5

3. N3 / N4 (Inlet & Outlet Cooling Water): 5"-150# / 8"-150# WN-RF, SCH.60, ANSI B16.5

4. N5 / N6 / N7 / N8 / N10 / N11 (Vents & Drains): 1" NPT 6000# with solid ASME Hex Plugs

Core Technology & Manufacturing Advantages

• ASME Monel 400 Corrosion Barrier: The entire process fluid path—including all 1083 tubes, tube sheets, and channel linings—is constructed from Monel 400, eliminating chloride-induced stress corrosion cracking (SCC) and sour gas pitting.

• Precision Depth Tube Expanding: Tubes are fixed into the Ø 1170 mm tube sheets using a standardized torque-controlled strength-expanding process (Set Expanding of Tube), ensuring zero-leakage joints under cyclic thermal stresses.

• Dual-Action Vapor Inlet Protection: The main vapor inlet (N1) integrates an internal impingement plate and an orifice plate to diffuse incoming high-velocity gas streams, protecting the tube bundle against mechanical vibration and localized erosion.

• Hot Dip Galvanized External Shield: All non-pressure-retaining external carbon steel structures undergo complete hot-dip galvanizing to provide heavy-duty atmospheric corrosion protection.

International Logistics & Project Site Support

• Integrated Rigging & Transportation Saddle: Built with heavy-gauge structural saddles (Supports, SA-516 M Gr. 70) and dual-point lifting lugs designed to safely handle g-forces during international ocean freight, heavy hauling, and field crane crane-ups.

• Nitrogen Purge & Flange Preservation: All ANSI B16.5 flange openings are sealed with heavy steel blind covers or commercial plugs prior to dispatch, with the internal chambers pressurized with nitrogen gas to prevent moisture entry during maritime transit and long-term storage.

• Traceable Engineering Documentation: Each unit ships with a complete Technical Data Booklet including Material Test Reports (MTRs to ASME Section II), Welding Procedure Specifications (WPS/PQR), NDT records, and verbatim reference drawings (E1-9331, E1-9332, and E2-0996) to enable flawless field integration by the site team heat exchanger project engineers.