Special > Special valves

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Control valve made of PVDF with internal thread cylindrical, type SO NV 22A00

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Control valve made of PVDF with hose connection, type SO NV 22A21

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Regulating valve made of PVDF with hose connection, type SO NV 22A21E

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Regulating valve made of PVDF with screw thread and hose connection, type SO NV 22A21EB

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Regulating valve made of PVDF with insert pin and hose connection, type SO NV 22A21EL

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Screw-on foot, type SO 29900

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PVDF cone check valve, with hose connection, type SO CV 23B21

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Stopcock made of PVDF, with hose connection, type SO BV 28A21

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Stopcock made of PVDF, with female thread, type SO BV 28A00

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Straight fitting made of PVDF, type SO 21021

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Straight screw-in fitting made of PVDF, type SO 21121

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Straight screw-in NPT fitting made of PVDF, type SO 21121 - NPT

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Straight screw-in fitting with sealing edge made of PVDF, type SO 21124

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Straight screw-in fitting with O-ring made of PVDF, type SO 21124 OR

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Straight screw-on fitting made of PVDF, type SO SO 21221

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Straight bulkhead fitting made of PVDF, type SO 21521, feedthrough length max. 6 mm

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Elbow fitting made of PVDF, type SO 22021

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Elbow fitting made of PVDF, with transition sleeve, Type SO 22221

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Elbow screw-in fitting PVDF, type SO 22421

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Elbow screw-in PVDF fitting, NPT thread, Type SO 22421 NPT

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Laboratory ball valve made of PVC U

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Laboratory ball valve made of PVDF

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Quick coupling made of PPGF, male connection with female thread

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Quick coupling made of PPGF, male connection with male thread

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Quick coupling made of PPGF, male connection with hose nozzle

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Quick coupling made of PPGF, male connection as end plug

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Quick coupling made of PPGF, female connection with female thread

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Quick coupling made of PPGF, female connection with male thread

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Quick coupling made of PPGF, female connection with hose nozzle

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Quick coupling made of PPGF, female connection as end cap

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Flow valve MINI

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Flow valve UNIVERSAL with PP insert component for butt welding

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Flow valve UNIVERSAL with PE insert component for butt welding

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Flow valve UNIVERSAL with PVC U insert component

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Flow valve UNIVERSAL with PVC C insert component

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Flow valve MULTILEIT with EPDM seal

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Flow valve MULTILEIT with EPDM seal

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Flow valve MULTILEIT - LED with EPDM seal, max. 2000 µS

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Flow valve MULTILEIT - LED with EPDM seal, max. 2000 µS

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Needle valve made of PP with an internal thread

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Needle valve made of PE with an internal thread

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Needle valve made of PVC with an internal thread

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Needle valve made of PVC C with an internal thread

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Needle valve made of PVDF with an internal thread

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Needle valve made of PP with an external thread

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Needle valve made of PE with an external thread

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Needle valve made of PVC U with an external thread

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Needle valve made of PVC C with an external thread

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Needle valve made of PVDF with an external thread

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Needle valve made of PP with angle bore

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Needle valve made of PE with angle bore

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Needle valve made of PVC U with angle bore

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Needle valve made of PVC C with angle bore

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Needle valve made of PVDF with angle bore

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2-way - mini ball valve made of PP

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2-way - mini ball valve made of PVDF

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3-way mini - ball valve made of PP

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3-way mini - ball valve made of PVDF

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4-way mini - ball valve made of PP

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4-way mini - ball valve made of PVDF

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Injection valve type ICV-P, connection UPVC

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Injection valve type ICV-CP, connection material CPVC

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Injection valve type ICV-PP, connection material PP

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Injection valve type ICV-PVDF, connection material PVDF

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Injection valve type ICV-S, connection material stainless steel 316

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Injection valve type ICV-A, connection material Alloy 20

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Injection valve type ICV-C, connection Hastelloy C

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Dosing lance made of PVDF, O-rings made of FKM-B

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Dosing lance made of PVDF, with PVC U Butterfly valve, O-rings made of FKM-B

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Dosing lance made of PVDF, with PVDF Butterfly valve, O-rings made of FKM-B

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Flow valves for measuring cell, type PEF1R/E

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Flow valves for measuring cell, type PEF1R

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Flow valves for measuring cell, type PEF

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Flow valves for measuring cell, type PEF5R

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Suction filters or foot valves made of PVC U, with flange connection, EPDM O-Ring

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Suction filters or foot valves made of PVC U, with flange connection, FPM O-Ring

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Suction filters or foot valves made of PP, with flange connection, EPDM O-Ring

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Suction filters or foot valves made of PP, with flange connection, FPM O-Ring

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Suction filters or foot valves made of PE, with flange connection, EPDM O-Ring

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Suction filters or foot valves made of PE, with flange connection, FPM O-Ring

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Suction filters or foot valves made of PVDF, with flange connection, EPDM O-Ring

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Suction filters or foot valves made of PVDF, with flange connection, FPM O-Ring

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Inspection glasses made of PVC U, with Flange connection, EPDM O-Ring

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Inspection glasses made of PVC U, with Flange connection, FPM O-Ring

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Inspection glasses made of PP, with Flange connection, EPDM O-Ring

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Inspection glasses made of PP, with Flange connection, FPM O-Ring

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Inspection glasses made of PVDF, with Flange connection, EPDM O-Ring

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Inspection glasses made of PVDF, with Flange connection, FPM O-Ring

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Inspection glasses made of PE, with Flange connection, EPDM O-Ring

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Inspection glasses made of PE, with Flange connection, FPM O-Ring

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Round sight glass made of PE, with windshield wiper

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Round sight glass made of PP, with windshield wiper

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Round sight glass made of PE

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Round sight glass made of PP

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Kwerk GmbH - Your Strong Partner for Premium Plastic Solutions and Excellent Service

Kwerk GmbH offers an extensive range of plastic products for various applications. We specialize in plastic semi-finished products, quick couplings, specialty fittings, pipeline sampling, static mixers, and CNC turned parts Our high-quality plastic products are used in a wide range of market segments, including machinery and plant engineering, device and apparatus construction, beverage and packaging industry, and food industry.

Our plastic semi-finished products serve as raw materials for machining at our CNC machining centers and play a crucial role in the quality of the end product. At Kwerk, we provide a wide selection of plastic semi-finished products and are available for technical consultations and inquiries. Our comprehensive range includes PMMA XT tubes, PMMA XT rods, PVC-U rods, PP rods, HDPE rods, natural PE rods, PVC U hollow rods, PVC-U hexagonal rods, HDPE U-profiles, PVC-U L-profiles, PVC-U square profiles, PVC-U T-profiles, PVC-U flat profiles, PVDF sheets, ABS sheets, PVDF-ELS sheets, PC sheets, PEEK sheets, PEEK-MOD sheets, PET sheets, POM-C sheets, POM-10PE sheets, and much more.

Our plastic quick couplings, particularly the SNAPLOK COUPLINGS, offer numerous advantages and the required flexibility. In collaboration with SAFI, we provide a comprehensive program for industrial, chemical, and process engineering applications. Our quick couplings are commonly used in handling intermediate bulk containers. When it comes to flexibility and operational reliability, Kwerk is your strong partner. Don’t hesitate to reach out to us.

In partnership with our strong allies, we have developed special plastic fittings for measurement technology and laboratory technology. Our product range includes laboratory ball valves made of PVC-U and PVDF, flow control fittings made of PP for measuring parameters such as pH, REDOX, and TEMPERATURE, needle valves made of PVC-U, PVC-C, PE, PP, and PVDF for precise volume flow regulation, as well as suction filters and sight glasses made of PVC-U, PP, and PVDF. Our plastic fittings are designed for use in chemical and process engineering and are CNC-manufactured from high-quality plastic semi-finished products. They are suitable for applications in flue gas desulfurization plants and wastewater treatment. When it comes to strainers and large shut-off fittings like valves, Kwerk is your partner offering a high-level full-service package.

Kwerk has also developed an innovative sampling solution for chemical and process engineering. Our sampling cabinets enable safe extraction of aggressive chemicals and liquids from running processes. Equipped with a transparent protective shield, they provide reliable protection against liquid leakage. In the event of excessive dosing, the liquid is separately discharged through an integrated overflow system. The height-adjustable plate allows for adaptation to various container sizes, and an optional extraction can be attached.

Our plastic static mixers are pipeline fittings used for effective fluid mixing. They consist of plastic pipes (PVC-U, PVC-C, PP, PE, or PVDF) with a special static mixing element inside. This mixing element influences the flow and enables mixing of gases, aqueous liquids, highly viscous liquids, and liquids with significant viscosity differences. Our static mixers ensure a homogeneous mixture of fluids and provide various degrees of mixing based on requirements.

At Kwerk, you will find a wide selection of plastic static mixers in various variants. In addition to our standard product range, we also offer customized solutions for the chemical and process engineering industry. With our extensive practical experience and state-of-the-art CNC machining centers, we manufacture high-quality plastic turned parts and plastic milled parts. We produce turned parts from different plastic materials for pipeline construction and canproduce complex milled parts according to your requirements. Our experienced team also assists with material selection and offers innovative and cost-effective solutions for your projects.

At Kwerk, we prioritize quality, timely delivery, and customer satisfaction. Our full-service approach ensures that we understand your requirements precisely and can provide you with the exact solutions you need. Don’t hesitate to contact us. We are your reliable partner for plastic products and solutions.