"Full Service on high level" - this term describes in a short and concise manner, what Kwerk.de sets apart.
As a full range supplier we realize unique solutions for our customers in the market segments of chemical technology, industry and process engineering. Since many years our owner-managed company operates worldwide. Between idea and implementation stands a philosophy, which has been growing continually: a trustful relationship with our customers. Nothing can replace the personal contact. Therefore each customer has an assigned personal contact - for coordination purposes or daily exchange of ideas. This successful principle has proven its worth. Companies of most diverse branches and sizes benefit from the wide serivce range of our staff - from regional craft businesses up to internationally operating industrial companies.
Plastic pipe systems - plastic pipe systems. Plastic pipe systems are part of the core competences of Kwerk.de. Technical information on ABS pipe systems is useful for optimized application of the ABS material, which is particularly suitable for refrigeration and compressed air technologies. The ABS pipes, ABS valves and ABS fittings are produced from DURAPIPE / ENGLAND. Kwerk.de offers the complete product range. In our workshop we can manufacture customized products from the ABS material as well.
Our product range relating to the PCV U material comprises PVC U ball valves, PVC U pipes, PVC U fittings and the necessary accessories. For the PVC U pipes we differentiate between the pressure levels PN 10 and PN 16. Under the different headings we have cataloged the items according to the nomenclature. The technical description on PVC U pipe systems gives general information about the material, as well as information about processing and installation of the pipes. In our media library we provide a video showing the bonding of pipe systems and the further processing. A separate bonding manual gives detailed information in written form. In the drop-down menu next to the article, you will find helpful tools for flow calculations in pipe systems, a database query system regarding the stability of plastic pipe systems , as well as a leftover exchange and a newly developed calculator for cutting plastic pipes.
All elements from the PVC C delivery program are characterized by high temperature stability and resistance to acids and alkalis. PVC-C is an amorphous thermoplastic and has a higher chlorine content than PVC-U. The permissible working pressures shall apply to PVC C pipes, PVC C valves and PVC C fittings for the process medium water with an included safety factor of 2,5 and a lifetime of 25 years. The appropriate values are listed in the pressure/temperature diagram, which you will find under the heading PVC C pipe systems in the drop-down menu. Further you will find this information under Technical information PVC C pipe systems.
Kwerk.de supplies PVC U transparent pipes in standard DIN dimensions between d 8 – d 400 mm outside diameter. The delivered (manufactured) length is 5 meters with plain ends. On request we can also produce pipe blanks from transparent material. In addition to the DIN dimensions, Kwerk provides transparent pipes in imperial dimensions in a delivery length of approx. 10 feet, which means approx. 3 meters. All pipes can also be delivered as blank. The transparent fittings can be supplied up to a size of 8 inches. Transparent parts like bends or T-pieces are manufactured from these pipes as well. A great number of different shapes can be provided for this purpose. In the classical apparatus engineering individual designs from transparent sheets are available. We are looking forward to your inquiry.
In the category PP pipe systems we offer PP pipes, PP fittings and PP valves. We deliver PP pipes up to d 800 mm outside diameter. We have divided the fittings from PP into the following categories and fields of application: PP fittings for socket fusion of heating elements, PP fittings, compact design, for butt welding of heating elements and PP molded parts, long design, for heated coil welding. We have different categories of PP valves: PP ball valve, PP diaphragm valve and PP butterfly valve. All these PP valves can be integrated into a pipe system by means of different welding procedures. In the drop-down menu next to the article you will find a summary of the essential characteristics of PP pipe systems and the corresponding welding methods. PP-R is frequently used in the housing technology for cold and hot water pipes. In the category PP-R pipe systems you will find PP-R pipes, PP-R fittings and PP-R valves. PP-GF is a glass fibre reinforced plastic material and presents a number of advantages in the chemical industry and process engineering. In the category PP-GF pipe systems we have listed, among others, also plastic fittings in accordance with the ATEX directive.
PE pipes, PE fittings and accessories are combined in the catogery PE pipe systems. PE pipes are used in drinking water supply and sewage technology. Particularly in nothern Germany PE pipes are very common in buried piping constructions, because of the soil conditions (sand). Due to continual further development of the PE pipes even buried gas pipelines are made of PE. The PE pipe has to be placed into sand, according to the general installation guidelines, in order to avoid damages on the pipe surface. The pipe manufacturers and raw material producers are constantly improving their materials, so that nowadays a wide range of material compositions within the PE pipe sector is available. After the Dusseldorf Airport fire, PE has also replaced, among others, the PVC U material in plant engineering. Because of the technological properties of PE pipes and PE fittings, this material is applied with pleasure in plant engineering.
PVDF pipes, PVDF fittings and PVDF valves are produced from PVDF SOLEF®, a raw material with outstanding properties for industrial applications. PVDF, a thermoplastic engineering material, has a fluorine content of approx. 59%. PVFD (polyvinylidene difluoride), a plastic material with excellent mechanical, physical and chemical properties and possible applications in a temperature range up to 140° C, results from polymerisation of the monomer vinyl fluoride. The exceptionally wide scope (pressure, temperature, chemistry) of this material opens up new application areas in the chemical and pharmaceutical industry, automotive industries, paper and pulp industry, etc. PVDF is resistant to the most inorganic chemicals ( acids and salts).
Molded ventilation parts made of PVC-U, PPs, PPs-EL, PP-H, PE-HD and PVDF are provided from Kwerk.de in various designs and dimensions. These plastic ventilation parts are used in corrosion resistant exhaust systems in the chemical industry in general, galvanic industry, paper and food industry, laboratory equipment, etc. As standard, the ventilation parts are delivered with sleeves. If needed, they can optionally also be delivered in a flange version. In addition to the standard delivery program, we also produce molded parts according to customer requirements and matching the particular processes. The finishing and fitting together will be executed depending on the kind of material, whereby bonding and welding will be realized with welding wire. Furthermore we offer molded ventilation parts as plug-in-system in different size ranges and materials.
We produce plastic industrial tanks, dosing tanks and chemical containers, inter alia, also made of sheet material. Apart from standard dosing tanks made of PE (35 - 1000 liters) we offer outer containers made of PE, salt dissolving tanks (60 - 5000 liters), storage tanks and vats as well as space saving tanks. For the marketing and sale of the dosing tanks and storage tanks for water we have engaged the company GEOPLAST from Austria. In our plastics workshop we produce additionally a wide range of accessories made of sheet material, for example safety and collecting troughs, attachment variants like manhole covers, acid vapor separators, level indicators, feed funnels, but also dosing tanks with agitator and chemical containers.
In the category filter technology we provide the products of the well-known US manufacturer: Pentek filter cartridges, Pentek filter housings und Pentek filter bags for water technology. We provide a large number of various filter housings for diverse applications in the chemical and process engineering. From stock we ship filter elements for all common brands and applications. Regardless if it is a matter of complex processes or polluting loads, in our product line you will find a wide range of variants. The strainers in single and double version designed for use in the wastewater technology, are a core product of Kwerk.de. Whenever it is a question of reducing foreign matters in liquid media, kwerk is your reliable and competent partner. This program is rounded off by a mobile laboratory filter press for laboratories, industry and production.
In the field of measurement and control technology we represent five large well-known manufacturers, therefore we can offer more than 11.000 products relating to automated plastic valves and fittings. Both, the electrical plastic ball valve and the pneumatic plastic ball valve are available in different material and design combinations. The level, pressure and temperature sensors indicated there, are essential for the plant and apparatus engineering. Various models of variable area flowmeters and the configuration tool for flowmeters complete the program.
Apart from the corrosion-resistant plastic pipe systems, pumps for the chemical industry and process engineering belong to the major parts in these branches of industry. Depending on use, an intensive application advice will be necessary. Our team will gladly assist you.
Custom-made products made of plastic, plastic valves and fittings and, beyond that, the fabrication of plastic equipment in our workshop are an important link to our customers. We are a key partner, whenever your are looking for custom-made plastic valves or fittings and individual productions in the plastics sector. On a sheet milling machine we produce loose and blind flanges up to a diameter of 1500 mm, valves for registration of PH, REDOX and temperature and CNC turned and milled parts made of plastic. As product example we refer to our static mixer made of plastic material. Furthermore we provide the important customer-specific consulting service, facilitating the realization of your engineering together with us. Kwerk.de stands for quality in delivery and service, and all this at a good price.
35 domestic and foreign manufacturers and suppliers trust us to sell their products ONLINE with a high degree of professionalism.
We are looking forward to a good cooperation. Just contact us.
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