Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Part 4: Valve-proving systems for automatic shut-off valves

Designation Number:

Z23551-4

Standard Type:

National Standard of Canada - Adoption of International Standard

Standard Development Activity:

New Standard

ICS code(s):

27.060.20

Status:

Proceeding to development

SDO Comment Period Start Date:

2021-08-04

SDO Comment Period End Date:

2021-08-25

Posted On:

2021-07-24

Scope:

This document specifies safety, constructional and performance requirements of valve-proving systems (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.

This document is applicable 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. This document is applicable to VPS with a maximum working pressure up to and including 500kPa for use in systems using fuel gases. This document is not applicable to VPSs for use in explosive atmospheres.

Project need:

To align Canadian requirements with those of international standards in the Valve-proving systems for automatic shut-off valves subject area (adoption of new standard).

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.