0...100 bar - 0...40 bar

The WIKA 990.40 diaphragm seal with threaded connection in threaded design is suitable for versatile application areas. A replacement of the lower body is possible without modifications on the diaphragm seal system. With this diaphragm seal, low-pressure ranges can be covered ” the large diameter of the diaphragm affects a lower deviation at the measuring instrument when the temperature changes. Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary. For the material selection, WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials. The wetted parts can, as an alternative, be coated.

The WIKA CPG-KITP pneumatic service kit is the ideal tool for the pneumatic testing, adjustment and calibration of mechanical and electronic pressure measuring instruments through comparative measurements or for the setting of pressure switches. These and other tests can take place quickly and reliably in the laboratory or workshop, or on-site at the measuring point. With the service kit, service and maintenance are more complete, safer and more flexible. The kit is high-quality finish, handy and robust and is also suitable for service use. Components The service kit consists of a pneumatic hand test pump for the generation of defined test pressure and also a highly accurate WIKA CPG1500 precision digital pressure gauge as a reference instrument. Air is used as the pressure medium. Various connection adapters are also available in the test case. All components are carefully stowed in the case and protected for in-house transport. Simple function If one connects the test item and the WIKA CPG1500 precision digital pressure gauge to the test pump, on actuating the pump, the same pressure will act on both instruments. Using the fine adjustment valve, the test pressure is set precisely. By comparison of the two measured values at any given pressure value, a check of the accuracy and/or adjustment of the pressure measuring instrument under test can be carried out. WIKA-CAL software The collected data from the data logger of the digital pressure gauge can be transmitted wirelessly to the WIKA-CAL calibration software for further evaluation.