ISO 23553-1:2022

This document specifies safety, constructional and performance requirements and testing of automatic and semi-automatic valves for oil.

It applies to automatic and semi-automatic valves which are:

normally closed;

used in combustion plants to interrupt the oil flow with or without delay on closing;

for use with oil types (e.g. middle distillate fuel oil, crude oil, heavy fuel oil or kerosene) without gasoline;

NOTE1 For other oil types (e.g. oil emulsions), additional test methods can be agreed between the manufacturer and the test authority.

NOTE2 Oil types from petroleum refining processes are classified ISO-F-D in ISO8216-99 and form part of a device having other function(s), such as oil pumps. In this case, the test methods apply to those parts or components of the device forming the automatic and semi-automatic valves, i.e. those parts which are necessary for the closing function.

for use on burners or in appliances using oil;

directly or indirectly operated, electrically or by mechanical or hydraulic means;

fitted with or without closed-position indicator switches.

This document covers type testing only.