GB/T 29735-2013 in English

《GB/T 29735-2013采暖空调用自力式流量控制阀》由TC143（全国暖通空调及净化设备标准化技术委员会）归口，主管部门为住房和城乡建设部。
本标准规定了采暖空调用自力式流量控制阀的术语和定义,分类和标记,基本规定,要求,试验方法,检验规则,以及标志、包装、运输和贮存等。
本标准适用于集中供热和集中空调循环水(或乙二醇溶液)系统中,无需系统外部动力驱动,能够依靠自身的机械结构,利用系统压差保持流量稳定的自力式流量控制阀(以下简称控制阀)。

Scope

This standard specifies the terms and definitions, classification and marking, basic regulations, requirements, test methods, inspection rules, marking, packaging, transportation and storage of self-operated flow control valves for heating and air conditioning. This standard is applicable to the circulating water (or ethylene glycol solution) system of central heating and central air conditioning. It does not need external power drive of the system, and can rely on its own mechanical structure to maintain a stable flow rate by using the system pressure difference. Self-operated flow control valve (hereinafter referred to as referred to as the control valve).