Attention Fake E-Mails in circulation!

Increasingly, we are receiving messages that e-mails in our name ask people to purchase vouchers or similar from mail-order companies in order to support us. These do not come from GSR!


Here you can book an appointment with our sales department.
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Would you like to return one of our products to have it technically checked, for example?


In order for us to process your return as quickly as possible, please request a goods return number by phone in advance and provide us with the following details:

  • Article and order data
  • Information on the field of application
  • Remark/Reason for the return

If hazardous substances have been operated with the valve, please include our Declaration of Contamination. Please understand that, in order to protect the health of our employees, processing cannot be started beforehand.


Telephone Service Contact:
Tel.: +49 5228 779-0

Mon-Thu: 7.00 - 16:00, Fri: 7:00 - 12:00

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