BS EN 14222-2021 pdf free download.Stainless steel steam boilers
This document specifies requirements for electrically heated steam boilers manufactured from stainless steel specifically dedicated for generating steam for sterilizers and disinfectors.
This document covers only steam boilers that are heated by immersion heaters and which have a maximum allowable pressure (PS) of not greater than 6 bar, a maximum volume (V) of 1 000 litres and a product of PS ∙ V not greater than 3 000 bar ∙ l.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 285:2015 1) , Sterilisation — Steam sterilizers — Large sterilizers
EN 764-1:2015+A1:2016, Pressure equipment — Part 1: Vocabulary
EN 12953-1:2012, Shell boilers — Part 1: General
EN 12953-5:2020, Shell boilers — Part 5: Inspection during construction, documentation and marking of pressure parts of the boiler
EN 12953-6:2011, Shell boilers — Part 6: Requirements for equipment for the boiler
EN 12953-8:2001, Shell boilers — Part 8: Requirements for safeguards against excessive pressure
EN 12953-9:2007, Shell boilers — Part 9: Requirements for limiting devices of the boiler and accessories
EN 13060:2014+A1:2018, Small steam sterilizers
EN 13445-2:2014 2) , Unfired pressure vessels — Part 2: Materials
EN 13445-3:2014 2) , Unfired pressure vessels — Part 3: Design
EN 13445-4:2014 2) , Unfired pressure vessels — Part 4: Fabrication
EN 13445-5:2014 2) , Unfired pressure vessels — Part 5: Inspection and testing
EN 14597:2012, Temperature control devices and temperature limiters for heat generating systems
EN 60204-1:2018, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204-1:2016, modified)
EN 61010-1:2010 3) , Safety requirements for electrical equipment for measurement, control, and laboratory use — Part 1: General requirements (IEC 61010-1:2010)
EN 61010-2-040:2015, Safety requirements for electrical equipment for measurement, control, and laboratory use — Part 2-040 Particular requirements for sterilizers and washer-disinfectors used to treat medical materials (IEC 61010-2-040:2015)
EN 62061:2005 4) , Safety of machinery — Functional safety of safety-related electrical, electronic and programmable electronic control systems (IEC 62061:2005)
EN ISO 11139:2018, Sterilization of health care products — Vocabulary of terms used in sterilization and related equipment and process standards (ISO 11139:2018)
EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design (ISO 13849-1:2015)
EN ISO 13849-2:2012, Safety of machinery — Safety-related parts of control systems — Part 2: Validation (ISO 13849-2:2012)
3 Terms and definitions
For the purposes of this document, the terms and definitions of the pressure equipment directive (PED),and terms and definitions given in EN 764-1:2015+A1:2016, EN 12953-1:2012 and EN 12953-6:2011,and the following apply.
In case of conflicts with terms defined in EN ISO 11139:2018, the terms from the PED have priority.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1 control
regulation of variables within specified limits
Note 1 to entry: For example, water level, pressure, temperature.
[SOURCE: EN ISO 11139:2018, 3.63 — modified: Note 1 to entry added.]
3.2 limiter
limiting device that, on reaching a fixed value is used to interrupt and lock-out the heating energy supply
Note 1 to entry: Limiting device comprises
— a measuring or detection function
— an activation function or correction, or shutdown, or shutdown and lock out, and which is used to carry out safety related functions as defined in the PED, on its own or as part of safety (protective) system (e.g.sensors, limiters) (see also Figure 1). If this is achieved by multi channel systems, then all items or limiters for safety purposes are included with safety (protective) system.
Note 2 to entry: Fixed value can e.g. be specified pressure, temperature, flow, water level.
[SOURCE: EN 12953-9:2007, 3.1 — modified, Note 2 to entry added to move examples “(e.g. pressure,temperature, flow, water level)” from the definition into a note and cited Directive has been updated in the Figure title from “Directive 97/23/EC” to “Directive 2014/68/EU”.]
3.3 lock-out
isolation of energy supply which requires a manual intervention to reinstate
3.4 functional check
testing of the safety device to ensure it performs its intended function
3.5 steam boiler
device to supply steam for external use comprising a vessel under pressure containing water to generate the steam by applying heat energy
4 Materials
Each steam boiler shall be manufactured from austenitic steel and/or austenitic ferritic stainless steel (duplex) in accordance with EN 13445-2:2014.
5 Design
Each steam boiler shall be designed in accordance with EN 13445-3:2014.
6 Manufacture
Each steam boiler shall be manufactured in accordance with EN 13445-4:2014.
7 Inspection and testing
Each steam boiler shall be inspected, tested and documented in accordance with EN 13445-5:2014.BS EN 14222 pdf download.