POPPE + POTTHOFF MASCHINENBAU GMBH - Test benches for testing (high) pressure vessel and components.

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In order to prove the quality of the fluid-carrying parts, all hoses, pipes, pressure vessels and other components are put under pressure until they burst. The process is precisely measured and documented in order to optimally design the components for specific applications.

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The Poppe + Potthoff impulse test stands test the operating or fatigue strength of various metal and plastic components. The endurance test in our high-pressure test systems simulates the life-cycle under varying loads. The failure tests thus show the potential weaknesses of the components with respect to design and material. The pressure is optionally modulated as a sine wave, trapezoid curve or needle pulse. Our test stands are characterized by a special ergonomics and are designed by Poppe + Potthoff machine design. Due to our flexible modular design, our machines are very variable, so that the pressure and volume range is designed according to the customer’s requirements. Of course, our systems are UL or CE compliant as required. In addition, we offer you service and support directly on-site.

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Autofrettage is a method for increasing fatigue strength of components for use at high and pulsating pressures. In short, Autofrettage compresses a container’s inner surface, making better use of the material’s structural properties. The process can reduce fatigue concerns in pulsating applications and lets engineers reduce tubing thickness in high-pressure applications without sacrificing strength, life, or safety. The autofrettage method is based on the reciprocal relationship of the plasticized inner zone and the elastically deformed outer zone. The components are placed under so much pressure that their interiors become plastically deformed. After relaxing, pressure stresses are created in these areas, which prevent the outer areas from reforming to their original shape. Instead, it remains stretched. This prevents crack formation in the later application, increases the service life of

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In order to ensure that castings, valves, pumps, hoses and other components or groups have been manufactured free of leakage, they are tested in non-destructive leakage tests. Oxygen, air, nitrogen or sulfur hexafluoride (SF6) can be used as the test medium.

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Poppe + Potthoff Maschinenbau GmbH supplies compressor units and pressure control systems of up to 400 bar for various gases. We offer ready-to-connect units to increase the existing pressure for pneumatic and hydraulic applications. In this way, the performance of existing systems can be increased flexibly and efficiently. Our compressor units are used wherever the existing system pressure is insufficient to implement specific applications. Of course, our systems are UL or CE compliant as required. In addition, we offer you service and support directly on-site.

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With the dual chamber PPM leak test stand, Poppe + Potthoff Maschinenbau offers a powerful system for testing sensors in medical device industry. The test stand can be implemented in R&D processes, but also during production as an end of line test. With pressures of up to 50 bars this equipment offers a large spectrum of testing opportunities in the medical area. Some Global Test Standards include: ISO 14644 ASTM G122-96 ASTM D6361 SAE AMS 0302 The PPM leak test stand is able to be programed to the customers requirement. The powerful in house built software enables exact design of pressure curves, such as holding times and exact pressure increase over time. It is an ideal solution for any sorts of plastic components. This exemplarily displayed test bench can utilize air or nitrogen as a test medium. Please get in touch about any other test mediums. In addition the PPM test benches can perform tests of multiple test units at a time.

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The system is a self-sufficient unit and is made of a solid welded frame, contains media preparation, a hydraulic unit, and electrical engineering. The pressure test bench has a secure test chamber for burst pressure and hydrostatic pressure tests and, optionally, a climatic chamber for pressure tests with environmental simulation. Depending on the option selected, pressure change tests up to 2,000 bar and 10 Hz can be generated. With the test circuit for hydrostatic and burst pressure tests, pressure ramps up to 3,000 bar can be generated. It is operated on a support arm PC. For pressure tests according to EG79 / EU406 – Section 4.2 Pressure booster for additional supply Displacement volume max. 15cm³ Frequency up to 10Hz Pressure Load Changes as sine & trapezoidal curve (depending on the expansion volume) Impulse intensifier for small volumes up to 2,000bar Safety test chamber with automatic door Media treatment with dirt and clean tank