T/ZS 0302-2022
Technical specification for application of backflow preventer for urban water supply (English Version)

Standard No.

T/ZS 0302-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

Group Standards of the People's Republic of China

Latest

T/ZS 0302-2022

Scope

General principles 2 Terminology 3 Basic regulations 4 Technical parameters 4.1 General regulations 4.2 Material and device parameters 4.3 Main performance 4.4 Strength requirements 5 Installation test 5.1 Installation 5.2 Test 6 Acceptance 7 Maintenance management Appendix A Dual check valve backflow preventer field test steps Appendix B Appendix C on-site test procedures for pressure reducing type backflow preventer Appendix D on-site test report on backflow preventer Appendix D Regular maintenance report on backflow preventer

T/ZS 0302-2022 history

• 2022 T/ZS 0302-2022 Technical specification for application of backflow preventer for urban water supply