ISO 23551-2:2018 燃气燃烧器和燃气器具的安全和控制装置 特殊要求 第2部分：压力调节器

标准编号：ISO 23551-2:2018

中文名称：燃气燃烧器和燃气器具的安全和控制装置 特殊要求 第2部分：压力调节器

英文名称：Safety and control devices for gas burners and gas-burning appliances — Particular requirements — Part 2: Pressure regulators

发布日期：2018-09

标准范围

本文件规定了用于燃气燃烧器和燃气设备的压力调节器和气动气体/空气比压力调节器的安全、结构、性能和测试要求。本文件适用于标称连接尺寸小于等于DN 250且入口压力小于等于500 kPa的压力调节器和气动气体/空气比压力调节器，用于天然气、人造气或液化石油气（LPG）。不适用于腐蚀性气体和废气。本文件特别适用于:-正、零、负压调节器，可使用辅助能量改变出口压力设置；-气动气体/空气比率压力调节器，其功能是根据空气信号压力、空气信号压差和/或燃烧室压力信号控制气体出口压力；-气体/空气比率压力调节器，其功能是根据气体信号压力或气体信号压差控制空气出口压力。本文件不包括:-直接连接到气体分配网络或保持标准分配压力的容器的压力调节器；-拟安装在露天并暴露于环境中的压力调节器；-机械连接的气体/空气比率控制；-ISO 23552-1中包含的电子压力调节器和气体/空气比率调节器。本文件仅涉及型式试验。注:附件A至H参考了ISO 23550《一般要求》的相关附件，并在需要时适用。

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.

标准预览图