Clients include
KWS Evaporators designs and manufactures precision thermal evaporation systems for chemical, pharmaceutical, dairy, and effluent treatment industries — engineered for performance, built to last.
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From food processing to chemical manufacturing, our evaporators are engineered to the specific demands of each industry we serve.
We don't just build evaporators — we engineer long-term solutions backed by deep process knowledge and unmatched after-sales commitment.
Every unit is designed from scratch to your feed characteristics, required concentration, throughput, and utility constraints. No off-the-shelf compromises.
Our multi-effect and MVR systems reduce steam and power consumption by up to 80%, delivering measurable ROI within 18–24 months for most installations.
From process design and fabrication to installation, commissioning, operator training, and annual maintenance contracts — we manage the entire lifecycle.
ISO 9001:2015 certified. All pressure vessels are IBR/ASME code compliant. We supply Material Test Reports, WPS/PQR, and NDT documentation as standard.
50+ engineers, fabricators, and process specialists. Our team has collective expertise across chemical, mechanical, and instrumentation engineering.
24/7 helpline with guaranteed 48-hour on-site response for critical breakdowns. Spare parts stocked for all major models. AMC plans with SLA guarantees.
A rigorously engineered, five-stage evaporation process that maximises energy recovery at every step.
| Parameter | Falling Film | Forced Circulation | Multiple Effect | ZLD System |
|---|---|---|---|---|
| Capacity Range | 500 – 50,000 L/hr | 200 – 20,000 L/hr | 1,000 – 1,00,000 L/hr | Custom Design |
| Construction MOC | SS 304 / SS 316L | SS 316L / Duplex | SS 304 / SS 316L | SS 316L / Hastelloy |
| Operating Pressure | Vacuum – 3 bar | Vacuum – 6 bar | Vacuum – 5 bar | Vacuum |
| Steam Economy | 0.9 – 1.1 kg/kg | 0.8 – 1.0 kg/kg | 2.5 – 4.5 kg/kg | 4.0 – 6.0 kg/kg |
| Standards | IBR / ASME | IBR / ASME | IBR / ASME | CPCB ZLD |
| Delivery Timeline | 8 – 14 weeks | 10 – 16 weeks | 12 – 20 weeks | 16 – 28 weeks |
Working principles and live operation of KWS evaporation and drying systems.
Falling film followed by forced circulation multi-effect evaporator delivering complete Zero Liquid Discharge for common textile-dyeing effluent.
Six-effect evaporation train (falling film + forced circulation) handling worst-case flows for a large common effluent treatment plant — engineered after a detailed process study.
Multi-effect ZLD system for automotive-plant wastewater, delivered through Envirocare — reliable performance with minimal operator intervention.
Plain-language technical guides by our process engineers — from evaporation basics to MVR and ZLD system design.
How a single-effect evaporator works and why steam economy is limited to a 1:1 ratio.
How additional effects progressively reduce steam consumption — and the practical limits on how many effects you can use.
How an electric compressor recycles all secondary vapor — achieving steam economies of 30–60 kg evaporated per kg of live steam.
Why evaporation outperforms RO for industrial effluents above 35,000 mg/L TDS — and what that means for ZLD system design.
An evaporator concentrates a liquid by removing water while keeping it pumpable; a dryer (like an ATFD) takes that concentrate further, to a dry solid. Most ZLD trains use both in sequence.
Typically 8–28 weeks depending on system type and capacity — falling film units are fastest (8–14 weeks), full ZLD systems take longest (16–28 weeks) due to the additional process stages.
KWS handles the full lifecycle in-house — process design, fabrication, installation, commissioning, operator training, and ongoing AMC support. Civil and piping work is included where required.
Dairy & food processing, pharmaceutical & API, chemical & petrochemical, effluent treatment/ZLD, sugar & distillery, and textile & dyeing — see our Industries page for sector-specific detail.
Yes — our Revamping & Modification service covers capacity enhancement, MVR retrofits, and control upgrades on existing plants regardless of original manufacturer.
Share your process parameters and our engineers will design the most energy-efficient, cost-effective evaporation system for your specific application — at no obligation.
Tell us about your process and our engineers will respond within 24 hours with a tailored, no-obligation proposal.