AS 4794-2001 (R2015)

Abstract

Specifies requirements for the material, design and performance of metal-bodied non-return valves (swing check and tilting disc types) for use in water supply and sewerage systems (swing check only) suitable for operation both in horizontal and vertical positions. Classification ranges from Class 16 to 35 valves in the size range DN 80 to DN 750 inclusive, with the maximum temperature of the medium flowing through the valve not exceeding 60°C.

RECONFIRMATION NOTICE
Technical Committee WS-022 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been determined
that the publication is still valid and does not require change.
Reconfirmed documents cannot be amended, but may be formally revised and a new edition
published.
Certain documents referenced in the publication may have been amended since the original
date of publication. Users are advised to ensure that they are using the latest versions of
such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 3 February 2015.
Reconfirmed documents cannot be amended, but may be formally revised and a new edition
published.
The following are represented on Technical Committee WS-022:
Australian Chamber of Commerce and Industry
Australian Industry Group
Australian Stainless Steel Development Association
Australian Water Association
Engineers Australia
Institute of Instrumentation, Control & Automation
Plastics Industry Pipe Association of Australia
Plumbing Products Industry Group
Water Industry Alliance
Water Services Association of Australia

Scope

This Standard specifies requirements for the material, design and performance requirements for metal-bodied flanged non-return valves (swing check and tilting disc types) for use in water supply and pressure sewerage systems (swing check only) suitable for operation in both horizontal and vertical positions.
Classification includes Class 16 and 35 valves in the size range DN 80 to DN 750, inclusive, with the maximum temperature of the medium flowing through the valve not exceeding 60°C.
Means for demonstrating compliance with this Standard are given in Appendix A. The products covered by this Standard include the following: (a) Non-return, free-acting valve.
(b) Non-return valve with extended hinge pin suitable for position indication, micro-switches, counterweight lever arm and counterweight.
(c) Non-return valve fitted with position indicator and/or counterweight lever arm and counterweight.
(d) Counterweight lever and counterweight for retrofit to valve with extended hinge pins.
(e) Non-return valve with resilient seated disc.
NOTE: See Appendix B for purchasing requirements that should be agreed upon at time of enquiry or order.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 23/04/2015. This standard has been reconfirmed in Australia in 2015 and remains current in New Zealand. Reconfirmation Notice 23/04/2015
Pages
ISBN
Committee	WS-022
Supersedes	DR 99004 CP