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Steam Sparged (VSI Series) Vaporizers:
Water heated tank and coil vaporizers. Steam heated hot water is maintained in an insulated stainless steel tank, cryogen is vaporized through a submerged copper or stainless steel coil.
VSI series vaporizer units are designed for relatively modest capacity (50,000 – 150,000 SCFH or 1,300-4,000 Nm3/hr). ideal for general process use applications, and where non-coded process coils and vessels are acceptable. The process coil is a vertical, helically coiled tube, available in copper or 304SS. They are available with optional pressure building circuits, and are supplied with steam controls and a 500-gallon (2,000 litre) polyurethane insulated ballast tank.
Steam is sparged into the water to maintain the tank temperature, and the condensate must drain to a gravity drain or sump. The VSI series are the lowest cost steam-sparged water bath vaporizers, and are a standard design. Special design requirements for VSI vaporizers are available at additional cost, and relatively minor changes such as designing for low steam pressure can generally be accommodated.
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