Shell & Tube Heat Exchangers ASME Sec VIII Div 1 • TEMA R/C/B
TEMA BEM / NEN
Up to 100 BAR
Fixed Tubesheet Exchanger (TEMA BEM/NEN)
Cost-effective, robust high-pressure heat exchanger with tubesheets welded directly to the shell. Ideal for clean shell-side fluids and high differential pressures.
| Design Code: | ASME Sec VIII Div 1 / TEMA R |
| Operating Pressure: | Full Vacuum to 100 BAR (1450 PSI) |
| Temperature: | -40°C to +450°C |
| Metallurgy: | SA-516 Gr 70 / SS-316L / Titanium |
| Shell Diameters: | 150 mm to 2,500 mm |
TEMA BEU / CFU
Up to 80 BAR
Removable U-Tube Bundle Exchanger (BEU)
Features freely expanding U-tubes that completely eliminate thermal expansion stresses. The removable bundle permits mechanical cleaning of the shell side.
| Design Code: | TEMA Class R • API 660 |
| Operating Pressure: | Up to 80 BAR (1160 PSI) |
| Temperature: | -50°C to +400°C |
| Tube Material: | SS-316L / Cu-Ni / Titanium Gr 2 |
| Applications: | Boiler Feedwater, Steam Heaters, Oil |
TEMA AES / AET
Up to 75 BAR
Floating Head Exchanger (TEMA AES/BES)
Designed for severe refinery duties where both tube and shell sides require complete mechanical rod cleaning. Internal floating head accommodates infinite thermal expansion.
| Design Code: | ASME Section VIII • TEMA Class R |
| Operating Pressure: | Up to 75 BAR (1088 PSI) |
| Cleaning: | 100% Mechanically Cleanable Both Sides |
| Metallurgy: | Duplex 2205 / Hastelloy C-276 / SS316 |
| Applications: | Refinery Cracking, Heavy Crude, Reboilers |
Plate & Frame Heat Exchangers (GPHE) High Thermal Efficiency • Ultra Compact
GPHE SERIES
Up to 25 BAR
Industrial Gasketed Plate Exchanger (GPHE)
Ultra-high thermal efficiency with heat recovery rates up to 95%. Corrugated chevron plates induce micro-turbulent flow at low Reynolds numbers, resisting fouling.
| Flow Rate Range: | 0.5 m³/h to 3,500 m³/h |
| Design Pressure: | Up to 25 BAR (362 PSI) |
| Plate Materials: | AISI 316L / 304 / Titanium Gr 1 |
| Gaskets: | Clip-on NBR / EPDM / Viton (FKM) |
| Connections: | DN25 to DN500 (Flanged/Threaded) |
TITANIUM MARINE
Up to 25 BAR
Titanium Marine & Acid Plate Exchanger
100% Grade 1 & Grade 2 Titanium plate packs engineered for raw seawater cooling, bleach solutions, chlorinated organics, and offshore marine heat exchange.
| Plate Metallurgy: | Pure Titanium ASTM B265 Gr 1 / Gr 2 |
| Corrosion Resistance: | Immune to pitting in seawater / brine |
| Port Size: | DN50 to DN350 Rubber-Lined / Titanium |
| Gasket Types: | Specialized HNBR / Fluoroelastomer (FKM) |
| Duty Applications: | Ship Central Coolers, Chlor-Alkali, Desalination |
SEMI-WELDED CASSETTE
Up to 30 BAR
Semi-Welded Plate Exchanger (Ammonia/R717)
Laser-welded plate cassettes confine aggressive refrigerants (NH3, Freon) or acids inside the welded channel while cooling water flows across standard gasketed channels.
| Welding Standard: | 100% Robotically Laser-Welded Seams |
| Design Pressure: | Up to 30 BAR (435 PSI) |
| Operating Temp: | -45°C to +160°C |
| Applications: | Ammonia Evaporators/Condensers, Solvents |
| Leak Safety: | Double-containment safety channels |
Brazed Plate & Fully Welded Exchangers Gasket-Free • High Temperature Up to 400°C
BPHE COPPER
Up to 45 BAR
Copper-Brazed Plate Exchanger (BPHE)
Vacuum-brazed stainless steel plates bonded with pure copper brazing. Extremely compact, zero gasket maintenance, engineered for chillers, heat pumps & boilers.
| Design Pressure: | Up to 45 BAR (653 PSI) |
| Temperature Range: | -196°C (Cryogenic) to +225°C |
| Plates: | AISI 316L (0.35 mm to 0.4 mm) |
| Brazing Material: | 99.9% High Purity Copper |
| Applications: | HVAC Chiller Evaporators, Solar, District Heat |
COMPABLOC STYLE
Up to 42 BAR • 400°C
Fully Welded Plate Block Exchanger
100% welded corrugated plate pack enclosed in four removable panels. Combines the high heat transfer efficiency of plates with the extreme pressure/temp resilience of shell & tube.
| Operating Temp: | -100°C to +400°C |
| Design Pressure: | Full Vacuum to 42 BAR (609 PSI) |
| Gasket Need: | 100% Gasket-Free Welded Pack |
| Cleaning: | 4 Removable Side Panels for Full Hydroblast |
| Applications: | Condensers, Reboilers, Solvents, Fatty Acids |
Multi-Pass Finned Coils & Air-Cooled Radiators Heavy Duty Industrial HVAC & Process Drying
FINNED COIL
Up to 30 BAR
Industrial Steam & Water Finned Tube Coils
High-output finned heat transfer coils designed for steam heating, chilled water cooling, and direct expansion refrigeration in air handling and drying ovens.
| Fin Types: | G-Fin (Embedded), L-Fin, Tension-Wound, Extruded |
| Tube Material: | Seamless Copper / Carbon Steel SA-179 / SS-316L |
| Fin Material: | Aluminum, Copper, Stainless Steel (3 to 14 FPI) |
| Testing: | Hydrostatic • Pneumatic Underwater Helium Test |
| Applications: | Textile Dryers, Food Dehydration, AHUs |
AIR RADIATOR
Up to 25 BAR
Heavy-Duty Generator & Engine Radiators
Engineered for large diesel generators, gas turbines, hydraulic power packs, and heavy locomotive machinery requiring continuous closed-circuit cooling.
| Core Construction: | Heavy Copper-Brass / Welded Aluminum Core |
| Cooling Medium: | Glycol-Water / Hydraulic Oil / Intercooler Air |
| Frame: | Galvanized Steel / Epoxy Coated Heavy Channel |
| Duty Capacity: | 100 kW to 2,500 kW Heat Rejection |
| Applications: | DG Sets (Cummins, CAT, Kirloskar), Mining |
ASME Pressure Vessels & Storage Tanks ASME Section VIII Div 1 • ISO 9001:2015
ASME SEC VIII DIV 1
Up to 60 BAR
Chemical Reaction Vessels & Air Receivers
Custom fabricated pressure vessels, jacketed chemical reactors, limpet coil tanks, and surge drums engineered with 100% radiographic weld testing.
| Design Code: | ASME Section VIII Div 1 / IS 2825 |
| Volumetric Capacity: | 200 Litres to 60,000 Litres |
| Shell Thickness: | 6 mm to 50 mm (Rolled & X-Ray Inspected) |
| Metallurgy: | SA-516 Gr 70 / SS-304L / SS-316L / Monel |
| Testing: | Hydrotest, Ultrasonic, DP, Radiography |
SANITARY SS-316L
Atmospheric to 10 BAR
Industrial Stainless Steel Storage Tanks
Precision TIG-welded horizontal and vertical storage tanks with sanitary mirror finish (Ra < 0.4 μm) for pharmaceutical WFI, food processing, and chemical storage.
| Capacity: | 500 Litres up to 100,000 Litres |
| Internal Finish: | Electro-polished / Mirror Ra < 0.4 μm |
| Material: | SS-304 / SS-316L (Certified Mill TC) |
| Insulation: | PUF / Mineral Wool with SS-304 Cladding |
| Applications: | Pharma WFI, Distilleries, Dairy, Solvents |
Process Chillers & Thermal Skid Systems Microprocessor Controlled • Plug-and-Play
AIR-COOLED CHILLER
5 TR to 150 TR
Industrial Air-Cooled Water Chillers
Packaged process cooling units equipped with hermetic scroll/screw compressors, brazed plate evaporators, and microprocessor PID temperature controllers (±0.5°C accuracy).
| Cooling Capacity: | 5 TR to 150 TR (17.5 kW to 525 kW) |
| Leaving Water Temp: | -10°C (Glycol) to +20°C |
| Refrigerant: | Eco-Friendly R-410A / R-134a / R-407C |
| Evaporator: | SS-316L Brazed Plate / Shell & Tube |
| Applications: | Plastic Injection, Laser Cutting, Pharma, Plating |
MODULAR PROCESS SKID
Custom Engineered
Modular Skid-Mounted Thermal Exchange Skids
Turnkey pre-piped, pre-wired process skids integrating heat exchangers, circulating centrifugal pumps, expansion tanks, control valves, and automated PLC control panels.
| Structure: | Heavy Structural Steel Base Frame (ISMC) |
| Piping: | ASME B31.3 Process Piping (SS-316 / CS) |
| Automation: | Siemens / Schneider PLC with SCADA / Modbus |
| Testing: | 100% Hydrotested & FAT Factory Tested |
| Applications: | Lube Oil Consoles, Reactor Heat Systems, CIP Skids |
OEM Replacement Plates, Gaskets & Retubing Spares 100% Dimensional Interchangeability
REPLACEMENT PLATES
OEM Equivalent
Replacement PHE Heat Transfer Plates
Precision hydraulic-pressed replacement plates for Alfa Laval, GEA Kelvion, Sondex, Tranter, APV, and Vicarb. Available in 0.5 mm and 0.6 mm thicknesses.
| Plate Materials: | SS-304, SS-316L, Titanium Gr 1, Hastelloy C-276 |
| Corrugation: | High Theta & Low Theta Chevron Patterns |
| Brands Supported: | Alfa Laval (M-Series, TL, TS), Sondex, Tranter |
| Quality Testing: | 100% Dye Penetrant & Thickness Gauged |
| Delivery: | Ready Ex-Stock for standard models |
ELASTOMER GASKETS
Clip-on / Glued
Molded Elastomeric PHE Gaskets
High-elasticity precision molded gaskets in NBR, EPDM, HNBR, and Viton (FKM). Engineered with specialized clip-on tabs for rapid field changeouts during plant shutdowns.
| Elastomer Types: | NBR (≤110°C), EPDM (≤150°C), Viton (≤180°C) |
| Attachment: | Easy Clip-on (Sondex/Tranter/Alfa Laval) & Glue |
| Chemical Match: | Oils, Steam, Caustics, Acids, Solvents |
| Certifications: | FDA Food Grade compliant available |
| Turnaround: | 24-48 Hour Emergency Dispatch |
Interactive 3D Equipment CAD Visualizer WebGL • 360° Orbit & Tube Inspection
Thermal Sizing & Duty Quick Calculator First-Principles Thermal Sizing
Estimate the required heat transfer duty ($Q$), Logarithmic Mean Temperature Difference (LMTD), and necessary surface area ($A$) to identify the optimal PAL ENGINEERS exchanger series.
OEM Plate & Gasket Interchangeability Cross-Reference Global Brand Compatibility
| OEM Manufacturer | Popular Series / Models Supported | Plate Metallurgy Available | Gasket Materials (Clip-on / Glue) | PAL ENGINEERS Drop-in Series |
|---|---|---|---|---|
| Alfa Laval | M3, M6, M10, M15, M20, TL6, TL10, TS6, Clip 6, Clip 8, AX30 | SS304, SS316L, Titanium Gr 1, SMO-254, Hastelloy C-276 | NBR, EPDM, FKM (Viton), HNBR, FDA Food-Grade | PE-REP-AL-SERIES |
| GEA / Kelvion | VT04, VT10, VT20, VT40, VT80, NT50, NT100, NT150, NT250 | SS316L (0.5mm/0.6mm), Titanium Gr 1/Gr 2, Alloy 31 | Clip-on EcoLoc NBR, EPDM, FKM, Silicone | PE-REP-KV-SERIES |
| Sondex | S4A, S7A, S8A, S9A, S14A, S19A, S21, S22, S37, S41, S62, S86 | SS316L, Titanium Gr 1, Hastelloy C-276 | SonderLock NBR, EPDM, Viton (FKM) | PE-REP-SX-SERIES |
| Tranter | GXD-012, GXD-026, GXD-042, GXD-064, GCD-016, GFP-050, GL-13 | SS316L, Titanium, 254 SMO, Nickel 200 | Clip-Grip NBR, EPDM, Viton, Neoprene | PE-REP-TR-SERIES |
| APV / SPX | H17, N35, N50, R5, SR2, SR3, TR9, T4, Q030, Q055, Q080 | SS304, SS316L, Titanium, Incoloy 825 | Paraclip NBR, EPDM, Fluorocarbon | PE-REP-APV-SERIES |