CEN/TC 286/WG 2 - Design and manufacture of accessories (valves, gauges, fittings) for LPG pressure vessels designed in WG1

This document specifies the design, testing and inspection requirements for pressure relief valve isolating devices, valve manifolds, vent pipes and system assemblies which are, where necessary, used with pressure relief valves for use in static pressure vessels for Liquefied Petroleum Gas (LPG) service.
This document addresses both prototype testing and production testing of isolating devices and PRV manifolds.
Pressure relief valves for LPG pressure vessels are specified in EN 14129:2014.

This European Standard specifies the requirements for the design and testing of spring loaded pressure relief valves and thermal expansion valves for use in:
- static LPG pressure vessels,
NOTE   The pressure vessels can be situated above ground, underground or mounded.
- transportable LPG welded steel pressure drums,
- LPG pressure vessels on road tankers, rail tankers, tank-containers or demountable tanks.
This document does not address relief valves for LPG cylinders, which are identified in EN 13953.
This document does not address production testing.
Normative Annex B prescribes testing with conditioning at - 40 °C for valves for use under extreme low temperature conditions.
The requirements for pressure relief valve accessories such as isolating devices, changeover manifolds and vent pipes are specified in EN 14071.
EN 14570 identifies the requirements for the pressure relief valve capacities for static pressure vessels.
EN 12252 identifies the requirements for the pressure relief valve capacities for road tankers.
Valves designed in accordance with this standard are specifically for use in LPG applications. Valves manufactured in accordance with EN ISO 4126 1 may also be used in certain LPG applications.
Terms used with LPG pressure relief valves are described graphically in Annex A.

This document specifies minimum requirements for design and testing of contents gauges, which are directly connected to LPG transportable pressure vessels, LPG drums, LPG cylinders and static LPG pressure vessels above 0,5 l water capacity excluding those used for automotive containers.
This document includes minimum requirements for the safe interchangeability of telemetry equipment, which is either integral in or additional to the contents gauge.
This document does not apply to refineries or other process plants.

This document specifies the design, testing and marking requirements for caps and plugs used to form a pressure tight seal with liquefied petroleum gas (LPG) cylinder valves and pressure vessel valves. Sealing caps and plugs provide an additional seal for self-closing and manually operated valves.
Protection caps or dust caps and tamper evident seals that do not form an additional seal as part of their design are excluded from the scope of this document.
Cylinder valve caps and plugs can be used with valves for liquid and vapour manufactured in accordance with EN ISO 14245 and EN ISO 15995.
Pressure vessel valve caps and plugs can be used with valves for liquid and vapour manufactured in accordance with EN 13175. Occasional liquid withdrawal valve caps and plugs are excluded from the scope of this document.
Reusable and single use sealing caps and plugs are included in this document.
This document does not exclude the use of other designs that provide an equivalent level of safety.
NOTE The term “pressure vessel” does not include LPG tank vehicles, also called “road tankers”, in CEN/TC 286 standards.

This document specifies the design, testing and marking requirements for spring loaded pressure relief valves (PRV), for use in liquefied petroleum gas (LPG) cylinders of water capacity of 0,5 l up to and including 150 l.
These PRVs can be either an integral part of a cylinder valve (see EN ISO 14245 [4] and EN ISO 15995 [5]) or a separate device.

This document specifies minimum requirements for the design, testing and production testing of valves, including appropriate fittings, which are connected to mobile or static LPG pressure vessels above 150 l water capacity. Pressure relief valves and their ancillary equipment, contents gauges and automotive LPG components are outside the scope of this document.
This document does not apply to refineries or other process plants.

This document specifies basic connection dimensions of LPG cylinder valves (manufactured in accordance with EN ISO 14245 and EN ISO 15995) and connectors (including pressure regulators) to enable them to be safely connected together.
NOTE 1   Figure 1 (type G.1) to Figure 19 (type G.33) give the types of threaded outlet connections.
NOTE 2   Figure 20 (type G.50) to Figure 34 (type G.66) give the types of non-threaded outlet connections.
This document lists potentially unsafe connections where it might be possible to connect together, but which, when connected, might not be sound or secure in some operating conditions or orientations.
This document specifies a marking system that is intended to ensure that only valves and connecters that are marked with the same connector type number are used in combination.
This document also recommends tightening torques for the attachment of screwed metal-to-metal connections.
Quality assurance systems, production testing and particularly certificates of conformity are not covered in this document.
This document excludes connections for automotive vehicles covered by UN/ECE Regulation No. 67 Part 1 and EN 13760.
This document excludes connections for gas cartridges covered by EN 417.

This European Standard specifies the requirements for the reconditioning, retesting and certification of Pressure Relief Valves (PRVs) for LPG pressure vessels covered under the scope of EN 14129.
This European Standard applies to retesting and reconditioning of PRVs that are carried out in a workshop and does not apply to site adjustment of installed PRVs.
Annex A is an informative Annex detailing a sampling approach for PRV requalification which should only be used in case of on-site requalification of series produced pressure vessels fitted with series produced PRVs.

This document specifies the requirements for the reconditioning and retesting of pressure relief valves (PRVs) for LPG pressure vessels covered under the scope of EN 14129.
This document applies to retesting and reconditioning of PRVs that are carried out in a workshop and does not apply to site adjustment of installed PRVs.
Annex A is a normative annex detailing a sampling approach for PRV requalification which could be used in case of on-site requalification of series produced pressure vessels fitted with series produced PRVs.

This document specifies minimum requirements for the design, testing and production testing of valves, including appropriate fittings, which are connected to mobile or static LPG pressure vessels above 150 l water capacity. Pressure relief valves and their ancillary equipment, contents gauges and automotive LPG components are outside the scope of this document.
This document does not apply to refineries or other process plants.

This European Standard specifies minimum requirements for the design and testing of valves, including appropriate fittings, which are connected to mobile or static LPG tanks above 150 litre water capacity. Pressure relief valves and their ancillary equipment,
contents gauges and automotive LPG components are outside the scope of this European Standard.
And,
the 3 ¼" ACME coupling, explore the possibility of the revision being:
- silent on its use;
- excluding its use;
- including its use, or
- developing a possible new thread type.

2010-02-22 EMA: WI deleted in ISO.

This European Standard specifies the design, testing and inspection requirements for pressure relief valve isolating devices, valve manifolds, vent pipes and system assemblies which are, where necessary, used with pressure relief valves for use in static pressure vessels for Liquefied Petroleum Gas (LPG) service.
This European Standard addresses both prototype testing and production testing of isolating devices and PRV manifolds.
Pressure relief valves for LPG pressure vessels are specified in EN 14129:2014.

This European Standard specifies the design, testing and inspection requirements for pressure relief valve isolating devices, valve manifolds, vent pipes and system assemblies which are, where necessary, used with pressure relief valves for use in static pressure vessels for Liquefied Petroleum Gas (LPG) service.
This European Standard addresses both prototype testing and production testing of isolating devices and PRV manifolds.
Pressure relief valves for LPG pressure vessels are specified in EN 14129:2014.

This European Standard specifies the requirements for the design and testing of spring loaded pressure relief valves and thermal expansion valves for use in:
- static LPG pressure vessels,
NOTE   The pressure vessels can be situated above ground, underground or mounded.
- LPG pressure vessels on road tankers, rail tankers, tank-containers or demountable tanks.
This document does not address production testing.
Normative Annex B prescribes testing with conditioning at - 40 °C for valves for use under extreme low temperature conditions.
The requirements for pressure relief valve accessories such as isolating devices, changeover manifolds and vent pipes are specified in EN 14071.
EN 14570 identifies the requirements for the pressure relief valve capacities for static pressure vessels.
EN 12252 identifies the requirements for the pressure relief valve capacities for road tankers.
Valves designed in accordance with this standard are specifically for use in LPG applications. Valves manufactured in accordance with EN ISO 4126 1 may also be used in certain LPG applications.
Terms used with LPG pressure relief valves are described graphically in Annex A.

This European Standard specifies minimum requirements for design and testing of contents gauges, which are directly connected to transportable tanks, drums, cylinders and static LPG tanks above 0,5 l water capacity excluding those used for automotive containers. This European Standard does not apply to refineries or other process plants.

This European Standard specifies the design, testing and marking requirements for caps and plugs used to form a pressure tight seal with liquefied petroleum gas (LPG) cylinder valves and pressure vessel valves. Sealing caps and plugs provide an additional seal for self-closing and manually operated valves.  
Dust caps and tamper evident seals that do not form an additional seal as part of their design are excluded from the scope of this European Standard.
Cylinder valve caps and plugs may be used with valves for liquid and vapour manufactured in accordance with EN ISO 14245 and EN ISO 15995.
Pressure vessel valve caps and plugs may be used with valves for liquid and vapour manufactured in accordance with EN 13175. Occasional liquid withdrawal valve caps and plugs are excluded from the scope of this European Standard.
Reusable and single use sealing caps and plugs are included in this European Standard.
This European Standard does not exclude the use of other designs that provide an equivalent level of safety.
NOTE   The term "pressure vessel" does not include LPG tank vehicles, also called "road tankers", in CEN/TC 286 standards.

This European Standard specifies the design, testing and marking requirements for spring loaded pressure relief valves (PRV), for use in liquefied petroleum gas (LPG) cylinders.
These PRVs can be either an integral part of a cylinder valve (see EN ISO 14245 [3] and EN ISO 15995 [4]) or a separate device.
This European Standard does not exclude the use of other designs of pressure relief devices that provide a similar level of safety.

This document specifies minimum requirements for the design, testing and production testing of valves, including appropriate fittings, which are connected to mobile or static LPG pressure vessels above 150 l water capacity. Pressure relief valves and their ancillary equipment, contents gauges and automotive LPG components are outside the scope of this document.
This document does not apply to refineries or other process plants.

This European Standard specifies basic connection dimensions of LPG cylinder valves (manufactured in accordance with EN ISO 14245 and EN ISO 15995) and connectors (including pressure regulators) to enable them to be safely connected together.
NOTE 1   Figure 1 (type G.1) to Figure 19 (type G.33) give the types of threaded outlet connections.
NOTE 2   Figure 20 (type G.50) to Figure 34 (type G.66) give the types of non-threaded outlet connections.
This European Standard lists potentially unsafe connections where it may be possible to connect together, but which, when connected, may not be sound or secure in some operating conditions or orientations.
This European Standard specifies a marking system that is intended to ensure that only valves and connecters that are marked with the same connector type number are used in combination.
This European Standard also recommends tightening torques for the attachment of screwed metal-to-metal connections.
Quality assurance systems, production testing and particularly certificates of conformity are not covered in this standard.
This European Standard excludes connections for automotive vehicles covered by UN/ECE Regulation No. 67 Part 1 and EN 13760.
This European Standard excludes connections for gas cartridges covered by EN 417.

This European Standard specifies the design, testing and inspection requirements for pressure relief valve isolating devices, valve manifolds, vent pipes and system assemblies which are, where necessary, used with pressure relief valves for use in static pressure vessels for Liquefied Petroleum Gas (LPG) service.
This European Standard addresses both prototype testing and production testing of isolating devices and PRV manifolds.
Pressure relief valves for LPG pressure vessels are specified in EN 14129:2014.

This European Standard specifies minimum requirements for the design, testing and production testing of valves, including appropriate fittings, which are connected to mobile or static LPG pressure vessels above 150 l water capacity. Pressure relief valves and their ancillary equipment, contents gauges and automotive LPG components are outside the scope of this European Standard.
This European Standard does not apply to refineries or other process plants.

This European Standard specifies the design, testing and inspection requirements for pressure relief valve isolating devices, valve manifolds, vent pipes and system assemblies which are, where necessary, used with pressure relief valves for use in tanks for Liquefied Petroleum Gas (LPG) service.
Pressure relief valves for LPG tanks are specified in prEN 14129.

This European Standard specifies the design, testing and marking requirements for spring loaded pressure relief valves, for use in liquefied petroleum gas (LPG) cylinders.
These valves can be either an integral part of a cylinder valve (see EN 13152 and EN 13153) or a separate device.
This European Standard does not exclude the use of other designs of pressure relief devices that provide a similar level of safety.

This European Standard specifies minimum requirements for the design and testing of valves, including appropriate fittings, which are connected to mobile or static LPG tanks above 150 litre water capacity. Pressure relief valves and their ancillary equipment, contents gauges and automotive LPG components are outside the scope of this European Standard.
This document does not apply to refineries or other process plants.

This document specifies the requirements for the design and testing of spring loaded pressure relief valves and thermal expansion valves for use in:
-   static LPG tanks,
NOTE   The tanks can be situated above ground, underground or mounded.
-   LPG tanks on road tankers, rail tankers, tank-containers or demountable tanks.
This document does not address production testing.
Normative annex B prescribes testing with conditioning at - 40 °C for valves for use under extreme low temperature conditions.
The requirements for pressure relief valve accessories such as isolating devices, manifolds and vent pipes are specified in prEN 14071.
prEN 14570 identifies the requirements for the pressure relief valve capacities for static tanks. See EN 12252 for road tankers.

This European Standard specifies basic dimensions of cylinder valves (manufactured in accordance with EN 13152 and EN 13153) and connectors (including regulators) to enable them to be connected together.
This European Standard lists connections where it may be possible to connect together, but which when connected may not be sound or secure in some operating conditions or orientations.
This European Standard also recommends tightening torques for the attachment of screwed metal-to-metal connections.
This European Standard contains the drawings, which describe direct cylinder valve connections in the following standards:
-   EN 12864,
-   EN 13785, and
-   EN 13786.
Quality assurance systems, production testing and particularly certificates of conformity are not covered in this standard.
This European Standard excludes connections for automotive vehicles covered by UN/ECE Regulation 67 and EN 13760 and excludes connections for cartridges.

EC - Replace Annex ZA (directive 97/23)

This European Standard specifies requirements for contents gauges for commercial LPG service and which are directly connected to mobile or static pressure vessels above 0.5 litres water capacity excluding these used for automotive tanks. This European Standard is intended to set minimum requirements for contents gauges for specific use with commercial LPG.

To address the technical comments made by SFS and NSAI at Formal Vote.

To address the technical comments made by SFS and NSAI at Formal Vote.

This European Standard specifies the requirements for design, specification and type testing for self-closing cylinder valves specifically for use with LPG. It includes references to associated equipment for vapour or liquid service.
NOTE   Annex B gives recommendations for production testing and inspection.
This European Standard applies to self-closing valves fitted to transportable refillable LPG cylinders from 0,5 l up to 150 l water capacity intended to convey LPG only.
This European Standard does not apply to fixed automotive installations.

This European Standard specifies the requirements for design, specification and type testing of manually operated cylinder valves specifically for use with LPG. It includes references to associated equipment for vapour or liquid service.
NOTE   Annex C gives the recommendations for production testing and inspection.
This European Standard applies to manually operated valves fitted to transportable refillable LPG cylinders from 0,5 l up to 150 l water capacity intended to convey LPG only.
This European Standard does not apply to fixed automotive installations.

This European Standard specifies the design, testing and marking requirements for spring loaded pressure relief valves, for use in liquefied petroleum gas (LPG) cylinders.
These valves can be either an integral part of a cylinder valve or a separate device.
This European Standard does not exclude the use of other designs of pressure relieving devices that provide a similar level of safety.

To include the design technical requirements for service valves

This European Standard specifies requirements for valves, including appropriate fittings for LPG service, which are connected to mobile or static pressure vessels above 150 l water capacity and may be subjected to tank design pressure. This European Standard describes valves and fittings designed for specific purposes (where required) for example filling, vapour equalising, purging, etc. These may be achieved by the use of other valves or systems that provide an equal level of safety, especially in the case of large storage tanks.