SPECIFICATION SHEET OPTIMAX® Heat Exchanger High Efficiency Heat Exchanger Helps You Achieve a More Efficient CAPEX Watlow® has over 40 years of experience designing and manufacturing heat exchangers, and we have the knowledge, experience and expertise required to create optimal heating solutions. Watlow has taken tried and true, critical design criteria and improved it to create a new generation heating technology – the OPTIMAX® heat exchanger. Watlow’s new OPTIMAX technology combines optimal fluid dynamics, efficient heat transfer, low pressure drop and a compact and reliable package to create a world-class system solution. Watlow’s EFD (enhanced fluid dynamics) technology provides advanced flow throughout the system without compromising the integrity of the fluid, heating elements and/or vessel. Fluid temperatures are further optimized through the use of OFT (optimized film temperature) technology in the heating elements. These, coupled together, provide an accelerated heat transfer rate, allowing the vessel to perform consistently at shorter lengths, or smaller shell diameters. In addition, the OPTIMAX can be designed for backwards compatibility with existing designs. Watlow has validated these technologies through CFD/FEA modeling, as well as over 5,000 hours of laboratory testing. In addition, OPTIMAX is compatible with Watlow’s WATCONNECT® control panel systems. Features and Benefits Smaller and lighter than traditional heat exchangers • Helps reduce overall footprint by almost 50 percent Enhanced fluid dynamics (EFD) and optimized film temperature (OFT) proprietary technologies • Provides advanced flow throughout the system improving heat transfer • Allows vessel to perform consistently at shorter lengths Over 5,000 hours of laboratory testing • Validates proprietary technologies Performance Capabilities • Wattages up to 3 megawatts • UL® and CSA component recognition up to 600VAC and IEC and ATEX recognition up to 690VAC • ANSI compatible 3 through 48 inch flanges • Hazardous area ratings: - ATEX 2 G Ex d IIC, T1 – 6 Gb - IEC Ex d IIC: T1 – 6 Gb - ATEX 2 G Ex e IIC T1 – 6 Gb - IEC Ex e IIC T1 – 6 Gb - Class 1, Divisions 1 & 2, Groups B, C & D - PESO, Zone 1 Group IIC • ASME code welding - Flange assemblies and pressure vessels can be provided with an ASME Section VIII, Div. 1 or Section IV code stamp upon request • OPTIMAX is compatible with Watlow’s WATCONNECT control panel systems - Contact your Watlow representative for more details Powered by Possibility To be automatically connected to the nearest North American Technical Sales Office: ©2017 Watlow Electric Manufacturing Company all rights reserved. Italy Japan Korea Mexico Singapore Spain Taiwan UK

Conventional Heat Exchanger Conventional Heat Exchanger Size Conventional Element Sheath Temperatures New OPTIMAX Smaller and Lighter } Unnecessary Length Remove Excess Pressure Drop Graph* 1.80 Area Mass Flow Rate (lb/Ft2 - min) * he Pressure Drop Graph shown above is for example only. The estimated T pressure drop for your specific OPTIMAX product must be calculated. Watlow will provide the estimated pressure drop with all OPTIMAX quotations.

OPTIMAX Size Improvement Continuous Catalytic Regeneration (CCR) Reduction Gas Heater No. 2 Application Parameters Service HCBN & Hydrogen Allowable Pressure Drop Max. Immersion Length Flow Rate Max. Sheath Temperature Max. Watt Density Total Power Inlet Temperature Design Temperature (Shell) Design Temperature (Flange) Watt density specification can artificially constrain heater design, which results in higher costs. Outlet Temperature Design Comparison: Traditional to OPTIMAX Design Options Heater Size Traditional Design Heater A 6 in. w/15 Traditional Design Heater B 6 in. w/15 2 Total # of...