Abstract

ISO 23551-4:2005 specifies safety, constructional and performance requirements of valve-proving systems, hereafter referred to as VPS, intended for use with gas burners and gas-burning appliances. It also describes the test procedures for checking compliance with these requirements and provides information necessary for the purchaser and user. ISO 23551-4:2005 applies to all types of VPS which are used for the automatic detection of leakage in a gas burner section having at least two valves designed in accordance with ISO 23551-1 and which give a signal if the leakage of one of the valves exceeds the detection limit.

ISO 23551-4:2005 applies to VPSs with a declared maximum working pressure up to and including 500 kPa for use in systems using fuel gases.

ISO 23551-4:2005 does not apply to VPSs for use in explosive atmospheres.


General information 

  • Status
     :  Withdrawn
    Publication date
     : 2005-08
  • Edition
     : 1
    Number of pages
     : 15
  • Technical Committee
     : ISO/TC 161 Controls and protective devices for gas and/or oil
  • ICS
     :
    27.060.20 Gas fuel burners

Life cycle


Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.

  2. Store
  3. Standards catalogue
  4. TC
  5. ISO/TC 161
  6. ISO 23551-4:2005