Steam jet pumps
Liquid ejectors
Heaters
Vacuum systems
About us
Jet pumps & vacuum systems
Successful companies
do not have to be big,
but competent,
fast and reliable.
They have to adapt
to the wishes of their customers.
History of SVS GmbH & Co. KG
SVS Strahlpumpen und Vakuumsysteme GmbH & Co. KG is the successor organisation of Weineck, a company founded in 1953. Weineck specialised in the field of jet pumps.
In the period between 1978 and 1991, the focus of activities shifted more and more from individual jet pumps to complete vacuum units.
In 1992, the company became part of the NASH Group. This merger increased the diversity of the production program to include water ring pumps.
The affiliation with the NASH Group ended in 1995.
A new, independent company, SVS, was created to continue the activities of the two original companies. The diverse applications of jet pumps and vacuum technology in many branches of industry require expert advice for individual problem solutions. This is a focus of SVS’s activities. Planning, engineering and design are in the hands of SVS engineers. Production is carried out by experienced apparatus engineering companies.
SVS is responsible for production and quality control.
In 1999, SVS was certified according to DIN EN ISO 9001 by the Rheinisch-Westfälischer TÜV eV.
In 2004, the 250th steam jet vacuum system was sold since SVS was founded.
2007 Foundation of MK Armaturenvertrieb GmbH as a partner company of SVS.
2008 Relocation of SVS GmbH & Co. KG and MK Armaturenvertrieb GmbH to Wachtendonk.
2012 Relocation of the turning shop from Düsseldorf to Wachtendonk.
2014 Opening of the in-house production at the Viersen-Dülken location.
2021 700th unit delivered.
2024 25 years certified by TÜV according to DIN EN ISO 9001.
Products
Steam jet pumps
Liquid ejectors
Heaters
Vacuum systems
Steam jet pumps
The design of a jet pump is very simple; it consists of 3 main components: motive nozzle, suction or mixing chamber and the diffuser.
The pressurised motive medium (liquid or gas) is expanded as it exits the motive nozzle. The pressure energy is converted into velocity energy. This flow transfers its energy to the surroundings and carries liquid, gas or solid matter out of the head. The velocities of the two media equalise in the mixing chamber. The motive and suction flows mix intensively. The energy exchange takes place according to the momentum principle. In the downstream diffuser, the velocity is converted into pressure.
The shape and dimensions of the jet pump must be carefully adapted to all operating conditions in order to ensure perfect and reliable operation. Size and appearance vary depending on the material and application.
Single-stage jet pumps can only overcome a limited compression ratio. For low suction pressures, several jet pumps must therefore be connected in series.
Application
These ejectors are used for conveying and compressing gases, vapours and liquids. Depending on the application, the following ejector types are used:
Steam jet vacuum pumps
are widely used in industry to generate vacuums in closed containers
Steam jet liquid pumps
lift and transport liquids
Steam jet ventilators
can generate a pressure difference of up to 500 mmWs
Most important customer advantages:
• Simple design
• No moving parts
• Simple operation
• Practically maintenance-free operation
• High operational reliability
• Wide range of materials, customised to the media to be handled
Multi-stage steam jet vacuum systems
The compression ratio of a single jet pump is limited. Depending on the application, the required vacuum may be very low, so that several jet stages must be connected in series. The available motive steam pressure and the desired vacuum are decisive for the number of stages in these systems. The number of stages can be used to optimise the consumption of motive steam for the entire system. It is possible to connect the jet pumps directly one behind the other, but this does not make sense from an energy point of view, as the subsequent stage must also extract and compress the motive steam from the previous stage. For this reason, condensers are connected between the individual stages. In a high vacuum, the condensation temperatures of the media to be extracted are close to or below the cooling water temperature. In this case, the jet pumps must be arranged directly behind each other. It is also necessary to fit the first stage(s) of the vacuum system with a heating jacket to prevent the jet projecting unit from freezing.
Various designs are available for optimum customisation to the application, e.g.:
– Condensation using surface or mixed condensers
– Combination with downstream water ring pump as atmospheric stage
Application
Each system is customised to your specific requirements. The areas of application for multi-stage steam jet vacuum systems can be found in numerous industrial sectors, e.g.:
• Cooling plants
• Crystallisation plants
• Distillation plants
• Deodorisation plants
• Evaporators
• Polymerisation plants
• Gas extraction plants
• Evacuation of turbine condensers
Vacuum systems in power stations
Vacuum systems in power stations are a broad field of activity for SVS.
Jet pumps for pre-evacuation
Both jet pumps and mechanical vacuum pumps (water ring pumps) are used. Both systems are equally suitable. The decision depends on investment costs and the availability of motive steam.
Evacuation systems for turbine condensers
Both jet pumps and water ring pumps are also used for this task. Jet pump units are well suited for this application, as most of the energy used (motive steam) remains in the circuit. In addition, the heat contained in the vapour flow extracted from the turbine condenser is also recovered, which is made possible by a sensible integration into the feed water circuit.
Due to the large difference between the condenser pressure and the atmosphere, 2-stage units with intermediate and post-condensation are frequently used. The condensers of the steam jet evacuation are cooled with the condensate from the turbine condenser. The thermal energy obtained by condensing the motive and suction steam therefore remains in the circuit instead of being destroyed via a cooling water system.
These units are usually equipped with a redundant pair of jets so that not only is trouble-free maintenance possible during operation but the output can also be doubled in exceptional cases.
Most important customer advantages
• Low maintenance due to the application of no moveable parts
• Simple operation
• Diverse material variations possible according to medium
• Attainment of low suction pressures by using several ejectors connected in series
Certificates
Careers
Unsolicited application are welcome
Our Team
Management
Quotation and order processing
Quality assurance
Achim Wisniewski (Dipl.-Ing.)
Managing Director
achim.wisniewski (at) svs-gmbh.de
Zeeshan Qadir (Dipl.-Ing.)
Quotations & Order Processing
zeeshan.qadir (at) svs-gmbh.de
Alexandra Voigt (Dipl.-Ing.)
Quotations & Order Processing
alexandra.voigt (at) svs-gmbh.de
Tim Kooymann (Techniker)
Quotations & Order Processing
tim.kooymann (at) svs-gmbh.de
Design
Sales of spare parts & purchasing
Birgit Sales
Design
birgit.sales (at) svs-gmbh.de
Nicole Hohmann
Sales of spare parts & purchasing
nicole.hohmann (at) svs-gmbh.de
Maximilian Wisniewski
Sales of spare parts & purchasing
maximilian.wisniewski (at) svs-gmbh.de
Secretariat
Production/mechanical processing
Barbara Mertens
Secretariat, Shipping & Documentation
barbara.mertens (at) svs-gmbh.de
Gabriele Maesmanns
Secretariat, Shipping & Documentation
gabriele.maesmanns (at) svs-gmbh.de
Immanuel Heckhoff
CNC Lathe Operator
Onur Özer
CNC Lathe Operator
Our Team
Management
Achim Wisniewski (Dipl.-Ing.)
Managing Director
achim.wisniewski (at) svs-gmbh.de
Quotation and order processing
Zeeshan Qadir (Dipl.-Ing.)
Quotations & Order Processing
zeeshan.qadir (at) svs-gmbh.de
Quotation and order processing
Alexandra Voigt (Dipl.-Ing.)
Quotations & Order Processing
alexandra.voigt (at) svs-gmbh.de
Quality assurance
Tim Kooymann (Techniker)
Quotations & Order Processing
tim.kooymann (at) svs-gmbh.de
Design
Birgit Sales
Design
birgit.sales (at) svs-gmbh.de
Sales of spare parts & purchasing
Nicole Hohmann
Sales of spare parts & purchasing
nicole.hohmann (at) svs-gmbh.de
Sales of spare parts & purchasing
Maximilian Wisniewski
Sales of spare parts & purchasing
maximilian.wisniewski (at) svs-gmbh.de
Secretariat
Barbara Mertens
Secretariat, Shipping & Documentation
barbara.mertens (at) svs-gmbh.de
Secretariat
Gabriele Maesmanns
Secretariat, Shipping & Documentation
gabriele.maesmanns (at) svs-gmbh.de
Production/mechanical processing
Immanuel Heckhoff
CNC Lathe Operator
Production/mechanical processing
Onur Özer
CNC Lathe Operator
Contact
SVS GmbH & Co.Kg
Strahlpumpen & Vakuum-Systeme
Im Müldersfeld 30
47669 Wachtendonk
Phone
+49 (0) 2836 – 97 19 60
info(at)svs-gmbh.de
Any personal data you submit via the contact form above will only be used to respond to your inquiry and for the associated technical processing. Your data will not be shared with third parties.
You have the right to withdraw your consent to being contacted at any time with effect for the future. In this case, any personal data stored about you will be deleted immediately. After your inquiry has been processed, your data will also be deleted promptly.
For more information on data protection and how we handle personal data, please refer to our privacy policy.
MK valve distribution
Our partner for valves, measuring instruments & accessories
MK Armaturenvertrieb GmbH offers you an extensive product portfolio of valves, accessories and measuring instruments. This fulfils your requirements for flexibility and quality to the highest degree. It contains products from all well-known manufacturers.
It is our aim to meet your requirements. We will be happy to advise you on the selection of suitable valves for the various areas of application.
You can benefit from our 30 years of experience in the field of industrial valves.
