GB 5135.7-2018
Automatic sprinkler systems.Part 7:Water flow indicators (English Version)

Standard No.: GB 5135.7-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 5135.7-2018
Replace: GB 5135.7-2003

Scope: This part of GB 5135 stipulates the classification, model, requirements, test methods, inspection rules, signs, instructions for use and packaging, transportation and storage of sprinkler system water flow indicators. This section applies to the vane-type water flow indicators in automatic sprinkler systems. Other types of water flow indicators can be used by reference.

GB 5135.7-2018 Referenced Document

GB 5135.11 Automatic sprinkler system.Part 11:Grooved couplings and fittings
GB/T 17241.6 Integral cast iron flanges
GB/T 1842 Environmental stress cracking test method for plastic polyethylene
GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 25208 Environmental test methods for fixed extinguishing systems
GB/T 7306.1 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 1:Parallel internal and taper external threads
GB/T 7306.2 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 2:Taper internal and external threads
GB/T 9112 Types and parameters for steel pipe flanges
GB/T 9969 General principles for preparation of instructions for use of industrial products