BS EN 13786 : 2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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AUTOMATIC CHANGE-OVER VALVES HAVING A MAXIMUM OUTLET PRESSURE OF UP TO AND INCLUDING 4 BAR WITH A CAPACITY OF UP TO AND INCLUDING 100 KG/H, AND THEIR ASSOCIATED SAFETY DEVICES FOR BUTANE, PROPANE OR THEIR MIXTURES
Hardcopy , PDF
31-08-2013
English
01-01-2004
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms and definitions
3.2 Terms and definitions concerning gas
3.3 Terms and definitions concerning pressures
3.4 Terms and definitions concerning rates
4 Types of automatic change over devices
4.1 Introduction
4.2 Automatic change over devices for installations
where the final regulator supplies a pressure
specified in EN 437
4.3 Other automatic change over devices installation
5 Constructional characteristics
5.1 General
5.2 Materials
5.3 Special requirements
5.4 Mechanical strength
5.5 Soundness
5.6 Mechanical endurance
5.7 Resistance to humidity changes
5.8 Resistance to corrosion
6 Performance characteristics
6.1 General
6.2 Operational limit characteristics (regulation function)
6.3 Operational limit characteristics (Change over function)
7 Test methods
7.1 General conditions
7.2 Verification of constructional characteristics
7.3 Verification of performance characteristics
8 Marking, packaging, instructions
8.1 General
8.2 Marking of the device
8.3 Packaging
8.4 Instructions for use and maintenance
Annex A (normative) - Special requirements for automatic
change over devices fitted with pressure or rate
operated safety valves
A.1 Change over devices fitted with an over-pressure
relief
A.2 Automatic change over device fitted with an
over-pressure shut off safety valve
A.3 Automatic change over device fitted with an
under-pressure shut off safety device
A.4 Automatic change over devices fitted with an
excess flow valve
A.5 Automatic change over devices fitted with a
regulated pressure limiter
Annex B (normative) - Special requirements for automatic
change over devices and automatic change over
device systems for caravans, motor caravans or
fresh water boats
Annex C (normative) - Special requirements for low pressure
automatic change over devices under extreme
temperature conditions (temperatures below
-20 degrees C)
Annex D (normative) - Method for measuring leaks at test
pressures less than or equal to 16 bar
D.1 Scope
D.2 Diagram of the test
D.3 Coefficient K
D.4 Measurement of the leak
D.5 Checks
Annex E (normative) - Complementary test requirements
for non metallic thermoplastic or thermal setting
materials used in the construction of automatic
change over devices
E.1 Scope
E.2 Materials
E.3 Special conditions for carrying out the test
mentioned in the body of the standard
E.4 Special requirements
E.5 Sampling and order of tests
Annex F (normative) - Requirements for elastomeric
reinforced diaphgrams
Annex G (normative) - Inlet connections
Annex H (normative) - Outlet connections
Annex I (normative) - Test method for resistance to
corrosion
I.1 Principle
I.2 Reagents
I.3 Apparatus
I.4 Test method
I.5 Results
Annex J (normative) - Automatic change over device
and change over device systems for LPG
cylinders to supply appliances installed in
seawater boats
J.1 Scope
J.2 General
J.3 Maximum guaranteed rate
J.4 Change over device and change over device
systems fitted with a pressure relief valve
J.5 Vent
J.6 Connections
J.7 Material
J.8 Resistance to corrosion
J.9 Marking
J.10 Instructions for use and maintenance
Annex ZA (informative) - Clauses of this European
Standard addressing essential requirements
or other provisions of EU Directives
Bibliography
Describes the constructional and operational characteristics, the safety requirements and test methods, and the marking of automatic change over devices with a capacity of less than or equal to 100 kg/h and having a maximum regulated pressure of less than or equal to 4 bar for butane, propane or their mixtures only in the vapour phase.
| Committee |
GSE/24
|
| DevelopmentNote |
Supersedes 99/718299 DC. (10/2004) Together with BS EN 13785 and BS EN 12864 supersedes BS 3016(1989). (04/2005) Supersedes 06/30150551 DC. 2004 Edition Re-Issued in April 2009 & incorporates AMD 1 2008. (04/2009)
|
| DocumentType |
Standard
|
| Pages |
146
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| EN 13786:2004+A1:2008 | Identical |
| NS EN 13786 : 2004 + A1 2008 | Identical |
| I.S. EN 13786:2004 | Identical |
| NF EN 13786 : 2004 + A1 2008 | Identical |
| DIN EN 13786:2010-07 | Identical |
| NEN EN 13786 : 2004 + A1 2008 | Identical |
| UNI EN 13786 : 2009 | Identical |
| UNE-EN 13786:2005 | Identical |
| NBN EN 13786 : 2004 + A1 2009 | Identical |
| SN EN 13786 : 2004 + A1 2009 | Identical |
| 13/30199128 DC : 0 | BS 6891 - SPECIFICATION FOR THE INSTALLATION AND MAINTENANCE OF LOW PRESSURE GAS INSTALLATION PIPEWORK OF UP TO 35 MM (R1[1/4]) IN PREMISES |
| BS 6891:2015 | Specification for the installation and maintenance of low pressure gas installation pipework of up to 35 mm (R1¼) on premises |
| PD 54823:2016 | Guidance for the design, commissioning and maintenance of LPG systems in small craft |
| ISO 7005-2:1988 | Metallic flanges — Part 2: Cast iron flanges |
| ISO 527-4:1997 | Plastics Determination of tensile properties Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites |
| EN ISO 527-4:1997 | Plastics - Determination of tensile properties - Part 4: Test conditions for isotropic and orthotopic fibre-reinforced plastic composites (ISO 527-4:1997) |
| EN ISO 4892-3:2016 | Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3:2016) |
| ISO 9773:1998 | Plastics — Determination of burning behaviour of thin flexible vertical specimens in contact with a small-flame ignition source |
| ISO 565:1990 | Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings |
| EN ISO 7253 : 2001 | PAINTS AND VARNISHES - DETERMINATION OF RESISTANCE TO NEUTRAL SALT SPRAY (FOG) |
| EN ISO 3166-1:2014 | Codes for the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:2013) |
| EN ISO 228-1:2003 | Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) |
| ISO 7-1:1994 | Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation |
| EN 437:2003+A1:2009 | Test gases - Test pressures - Appliance categories |
| ISO 180:2000 | Plastics Determination of Izod impact strength |
| ISO 4892-3:2016 | Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps |
| EN 1949:2011+A1:2013 | Specification for the installation of LPG systems for habitation purposes in leisure accommodation vehicles and accommodation purposes in other vehicles |
| EN 12164:2016 | Copper and copper alloys - Rod for free machining purposes |
| EN 13785:2005+A1:2008 | Regulators with a capacity of up to and including 100 kg/h, having a maximum nominal outlet pressure of up to and including 4 bar, other than those covered by EN 12864 and their associated safety devices for butane, propane or their mixtures |
| ISO 9227:2017 | Corrosion tests in artificial atmospheres — Salt spray tests |
| ISO 3166-1:2013 | Codes for the representation of names of countries and their subdivisions Part 1: Country codes |
| EN 549:1994 | Rubber materials for seals and diaphragms for gas appliances and gas equipment |
| EN 12165:2016 | Copper and copper alloys - Wrought and unwrought forging stock |
| ISO 301:2006 | Zinc alloy ingots intended for castings |
| ISO 178:2010 | Plastics Determination of flexural properties |
| ISO 228-1:2000 | Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation |
| 1990/396/EEC : 1990 | COUNCIL DIRECTIVE OF 29 JUNE 1990 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO APPLIANCES BURNING GASEOUS FUELS |
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