One Stage Evaporator (RFE)

One stage evaporator is a Rising Film Evaporator used for solvent recovery and concentration.


Product Features

Application scope

It can be used to recover ethanol in the evaporation process of ethanol extraction CBD, as shown below
Refrigerated ethanol–extraction–filtration–evaporation–decarboxylation–distillation–crystallization
It is mainly suitable for the evaporation of materials with high concentration, high viscosity, and easy to scale and coking. It is widely used in glucose, starch sugar, Chinese medicine, western medicine, oral liquid, food, monosodium glutamate, chemical industry, dairy products and other materials concentration and recovery of industrial organic solvents (such as ethanol).

Principle &Characteristic
1. This machine is adopted outside heating circulation and vacuum condition, the inside material can be heat well and evaporated efficient fast.
2. All the system design according to GMP standard, heating tank and evaporate tank have the CIP unit, the temperature & vacuum pressure can display on line.
3. This machine have the cooling unit, it can be got high concentration solvent. the solvent recovery ratio can reach to 95%.
4. This machine have the big sight glass to inspect inside material evaporate status.
5. Water/gas separater can reduce the material lost under the evaporate process.
6. This machine can be feed raw material, out put final products and take sample online continous.
7. According to the process, we can use the PHE type cooling unit instead of the shell & tube condenser for the good cooling efficient.

Main Parameters
Model WZ-500 WZ-1000 WZ-1500 WZ-2000
Evaporation Capacity (kg/h) 500 1000 1500 2000
Recycled Alcohol Density (%) 80~85
Steam Pressure (Mpa) 0.03~0.09
Vacuum Degree (Mpa) -0.05~-0.08
Evaporating Chamber Volume (m3) 1.0 1.5 2 2.5
Liquid receiver Volume (m3) 0.3 0.5 0.8 1.0
Steam Cost (kg/h) 520 1050 1550 2100
Water Cost (T/h) 7 10 15 20
Heating Steam Inlet (mm) 40 50 80 100
Cooling Water Inlet & Outlet (mm) 40 50 65 80

Product Details



PureyMech’s products are proudly certified by

Elementor Single Product #616
Elementor Single Product #616
Elementor Single Product #616
Elementor Single Product #616
Elementor Single Product #616

designed and manufactured according to

Elementor Single Product #616
Elementor Single Product #616

Frequently Asked Questions

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Sanitary grade of SUS304/SUS316L Stainless Steel Vendor: Shanghai Bao Steel Group Corporation or equivalent supplier.

In order to keep the raw materials organized and make sure proper material will be used, we insist asking the material vendor to provide original material test report. Also, we will do in-coming tests to ensure the material is qualified:

  • Metal spectrum analyzer
  • Thickness gauge
  • Roughness detector

All designing, manufacturing and inspection processes are performed according to GB150-1998. ISO9001 Quality Management System Standard will also be applied throughout the entire manufacture process.

Yes, with our certified workshop and excellent welding technics, we can provide you with high quality ASME or PED pressurized equipment.

As multiple tests and inspections are required, lead time of such equipment is longer than normal pressure equipment, it usually takes 18 to 20 weeks to finish.

Plasma welding machine imported from Germany will be used for tank longitude and girth welding and fillet welding to make sure the welding seam smooth and even.

Also, GTAW welding technology will be applied, inert gas concentration is 99.999%. Different welding wire ER316L or ER308 will be applied for different material of SS plate.

For particular circumstances, electric-arc welding will be applied. Welding material used for:

S304-S304: A102; S316L-S316L: A022; Different SS: A302.

Welding seam between jacket and vessel shall be NDT inspected according to JB4730-94 to ensure the impermeability and long service life.

For single tank, it takes around 3-5 weeks to deliver.

For integrated systems, it normally takes 18 to 20 weeks to deliver.

ASME/PED certified equipment will take 18 to 20 weeks

You are welcome to contact us for details if any needs.

Yes, customization order is acceptable.

You may send over the requirements, we will realize your design and provide you with the most cost-efficiency solutions.

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For single tank, it takes around 3-5 weeks to deliver.

For integrated systems, it normally takes 18 to 20 weeks to deliver.

ASME/PED certified equipment will take 18 to 20 weeks.

You are welcome to contact us for details if any needs.

Plastic wrap film should be applied around the entire equipment.

Electrical parts should be disassembled and packed in crates if possible, otherwise it should be fully protected from water or any kind of potential damage in shipping.

Tank will be put down and sitting on a CS frame support, steel wire will be used for fasten tank to support. Rubber should be applied to where steel wire is touching the equipment.

When fixing the equipment in container, multiple fixing belts and/or steel wires should be used to make sure no movement of equipment.

should be used to make sure no movement of equipment

Yes, we will.

Equipment will be thoroughly washed before packing. Water used for washing should not have chloridion content more than 25mg/L to avoid damage of stainless-steel surface. Water stains must be cleaned once washing is finished.

Normally we will ship the equipment by sea due to the weight of it.

Air shipping is also an option, but it will cost more.

It depends on your choice.

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Yes, we do. On-site installation service is available with charges.

Engineers and installation workers will be dispatched to your site to finish installation.

Service provided against charges, please contact us for more details.

Yes, we do.

Engineers will be dispatched to your site to conduct commissioning.

Training service is also available.

Service provided against charges, please contact us for more details.

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One year of warranty provided.

Replacement will be provided freely if the failure is NOT artificial.

Shipping cost of free replacement will be born by us.

Yes, we do.

Wi-fi connections are installed in your system's control box, our engineers is able to debug the system online.

You can also contact our sales representatives for online support as well.

Did we miss your question? Drop us a line and we will
get back within 24 hours.

Get to know us

About PureyMech

An manufacturer with profession and passion

PUREYMECH is a high-tech enterprise integrating design, manufacturing and installation of the biochemical, pharmaceutical and sanitary fluid equipment.

Innovative design strategies that achieve significant cost savings for our clients throughout the entire service life of the plant are key components in our portfolio.


Design Service

We offer the full range of design/build services needed to realize projects. We manage the coordination of the entire project using turnkey solution and help our clients measure the success against the complete solution.

Plasma Welding

All procedures took place in the workshops of PUREYMECH are in accordance with various industrial standards (ISO, DIN, IDF, SMS). PUREYMECH is equipped with complete inspection facilities, such as equipment of hydraulic test, X-ray flaw detection, chemical analysis and mechanical property test.

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