气体燃烧器和燃气设备用安全和控制装置.特殊要求.第2部分:压力调节器

[中文适用范围]： 本文档规定了用于燃气燃烧器和燃气燃烧设备的压力调节器和气动燃气/空气比例压力调节器的安全、结构、性能和测试要求。本文档适用于公称连接尺寸最大为DN 250、 inlet压力最大为500 kPa的压力调节器和气动燃气/空气比例压力调节器，用于天然气、 manufactured gas（人造气）或液化石油气（LPG）。本文档不适用于腐蚀性气体和废气。本文档特别适用于：可以使用辅助能量改变出口压力设定值的位置、零位和负压调节器；气动燃气/空气比例压力调节器，其通过响应空气信号压力、空气信号压差和/或燃烧室压力信号来控制燃气出口压力；燃气/空气比例压力调节器，其通过响应燃气信号压力或燃气信号压差来控制空气出口压力。本文档不包括：直接连接到燃气分配网络或保持标准分配压力的容器的压力调节器； intended to be installed in the open air and exposed to the environment（安装在户外并暴露在环境中的）压力调节器；机械连接的燃气/空气比例控制器；电子压力调节器和燃气/空气比例调节器（包含在ISO 23552-1中）。本文档仅涵盖型式试验。 [外文原描述]： This document specifies safety, construction, performance and testing requirements for pressure regulators and pneumatic gas/air ratio pressure regulators intended for use with gas burners and gas-burning appliances. This document applies to pressure regulators and pneumatic gas/air ratio pressure regulators of nominal connection size up to and including DN 250 at inlet pressures up to and including 500 kPa, for use with natural gas, manufactured gas or liquefied petroleum gas (LPG). It is not applicable to corrosive and waste gases. This document is specifically applicable to: — positive, zero and negative pressure regulators which can use auxiliary energy to change the outlet pressure setting; — pneumatic gas/air ratio pressure regulators, which function by controlling a gas outlet pressure in response to an air signal pressure, air signal differential pressure, and/or to a combustion chamber pressure signal; — gas/air ratio pressure regulators, which function by controlling an air outlet pressure in response to a gas signal pressure or a gas signal differential pressure. This document does not cover: — pressure regulators connected directly to gas distribution network or to a container that maintains a standard distribution pressure; — pressure regulators intended to be installed in the open air and exposed to the environment; — mechanically linked gas/air ratio controls; — electronic pressure regulators and gas/air ratio regulators, which are contained in ISO 23552-1. This document covers type testing only. NOTE Annexes A to H reference the relevant annexes of ISO 23550, general requirements and are applicable where required.