SED - Spray Engineering Devices Ltd Limited
Falling Film Tubular Evaporator

Efficient. Reliable. Engineered for Tomorrow.

The SED Falling Film Tubular Evaporator is an advanced system designed to deliver exceptional evaporation efficiency for heat-sensitive liquids. With superior heat transfer, minimal residence time, and optimized steam utilization, it helps industries achieve maximum concentration with minimum energy input.

Built for precision and sustainability, this technology serves a wide range of sectors - from sugar and dairy to pharmaceuticals and specialty chemicals - setting new benchmarks in process performance.

Sugar Mill Modern
Sugar Factory

How It Works

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Feed Distribution

Liquid feed enters from the top through serrated distributors, forming a uniform film inside each tube.

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Heat Transfer & Evaporation

Steam condenses on the tube’s outer surface, transferring heat to the liquid film inside for rapid evaporation.

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Vapor-Liquid Separation

SED’s proprietary UN-MIST™ technology, featuring an embossed plate-type separator, effectively separates vapor and entrained liquid, ensuring clean vapor and higher condensate purity.

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Condensate Removal

The vapor is then condensed and recovered, contributing to reduced overall steam consumption in multi-effect systems.

Key Advantages

01

High Energy Efficiency

Supports multi-effect evaporation at low ΔT, enabling significant steam and energy savings.

02

Compact and Scalable

Greater heating surface area within a smaller footprint - perfect for space-constrained plants.

03

Superior Product Quality

Low operating temperature and short retention time protect sensitive compounds from degradation.

04

Reduced Operating Costs

Optimized heat recovery and minimized steam requirements result in measurable process cost reductions.

05

Simplified Maintenance

The quick-opening dish end with integrated juice distributor allows faster cleaning and lower downtime.

Salient Design Features

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Optimized thermal design for higher heat transfer coefficients

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Uniform feed distribution preventing tube dryness

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Centralized juice inlet mechanism reducing piping complexity

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Integrated quick-opening dish end for fast, efficient cleaning

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Designed for long-term reliability and consistent performance

Sugar Factory
Sugar Factory

Applications Across Industries

SED Jet Ejectors are widely used across industries for vacuum generation, gas evacuation, and vapor handling:

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Sugar and Sweeteners

Concentration of juice and syrup with minimal color degradation

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Dairy and Food Processing

Gentle evaporation maintaining flavor and nutritional quality

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Pharmaceuticals and Nutraceuticals

Precise control for heat-sensitive APIs and extracts

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Specialty Chemicals

Efficient concentration under low-pressure, low-temperature conditions

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Bio-based Industries

Biomass and renewable product concentration with high energy efficiency

Why Partner with SED?

At SED, innovation is more than design — it’s about partnership. We collaborate closely with clients to engineer evaporation systems that deliver measurable gains in energy performance, product quality, and sustainability.

From concept to commissioning, our solutions are backed by process expertise, manufacturing excellence, and global service support — making SED a trusted partner in your operational success.

Frequently Asked Questions

Revolutionizing Efficiency. Redefining Standards.

Experience next-generation evaporation technology with SED’s Falling Film Tubular Evaporator — engineered for high performance, reliability, and sustainability.