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SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 12252:2014
Oprema in pribor za utekočinjeni naftni plin (UNP) - Oprema cestnih cistern za UNP
LPG equipment and accessories - Equipping of LPG road tankers
Flüssiggas-Geräte und Ausrüstungsteile - Ausrüstung von Straßentankwagen für
Flüssiggas (LPG)
Équipements pour GPL et leurs accessoires - Équipements des camions citernes pour
GPL
Ta slovenski standard je istoveten z: EN 12252:2022
ICS:
23.020.20 Posode in vsebniki, montirani Vessels and containers
na vozila mounted on vehicles
43.080.10 Tovornjaki in priklopniki Trucks and trailers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12252
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 43.080.10 Supersedes EN 12252:2014
English Version
LPG equipment and accessories - Equipping of LPG road
tankers
Équipements pour GPL et leurs accessoires - Flüssiggas-Geräte und Ausrüstungsteile - Ausrüstung
Équipements des véhicules-citernes routiers pour GPL von Straßentankwagen für Flüssiggas (LPG)
This European Standard was approved by CEN on 20 April 2022.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12252:2022 E
worldwide for CEN national Members.
Contents
European foreword . 5
Introduction . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 10
4 Requirements . 12
4.1 General . 12
4.2 Equipment . 12
4.3 Valve access . 13
5 Road tanker chassis. 13
6 Pressure vessel . 13
6.1 Pressure vessel . 13
6.2 Mounting of pressure vessel on road tanker . 14
6.2.1 General . 14
6.2.2 Mounting . 14
7 Pressure vessel accessories . 14
7.1 Required pressure vessel accessories . 14
7.1.1 Contents gauge . 14
7.1.2 Pressure gauge . 14
7.1.3 Primary shut-off system . 15
7.1.4 Pressure relief valves . 16
7.2 Optional pressure vessel accessories . 16
8 Vehicle LPG equipment . 17
8.1 Mandatory LPG equipment . 17
8.1.1 General . 17
8.1.2 Pipework . 17
8.1.3 Connecting hoses . 17
8.1.4 Accessories . 17
8.1.5 Earth connection . 17
8.2 Optional LPG equipment . 18
9 Equipment specifications . 18
9.1 Suitable materials . 18
9.1.1 General . 18
9.1.2 Steel pressure retaining parts . 18
9.1.3 Non-pressure retaining parts . 18
9.1.4 Welding consumables . 18
9.1.5 Non-metallic materials . 18
9.1.6 Pipework . 19
9.1.7 Certification of materials. 19
9.1.8 Control of materials. 19
9.2 Contents gauge . 19
9.3 Pressure gauge . 20
9.4 Temperature gauge . 20
9.5 Pump . 20
9.6 Hoses . 20
9.7 Hose reel . 21
9.8 Earth reel . 21
9.9 Metering system . 21
9.10 Valves . 21
9.11 Pressure relief valves (PRV) . 22
9.12 Filters and strainers . 22
9.13 Drain valves . 22
10 Assembly . 22
10.1 General . 22
10.2 Welding . 22
10.2.1 Welding of the pressure containing parts . 22
10.2.2 Welding of the non-pressure containing parts . 23
10.3 Flanged connections . 23
10.4 Screwed connections . 23
10.5 External corrosion protection . 23
11 Safety systems . 23
11.1 General . 23
11.2 Emergency Shut-Down (ESD)system . 24
11.3 General safety requirements . 24
Annex A (normative) Discharge rates for pressure relief valves — Discharge capacity . 25
Annex B (informative) Calculation of mountings of pressure vessel to the chassis . 27
B.1 General . 27
B.2 Mounting of pressure vessel to the chassis . 28
B.2.1 Vertical bolts . 28
B.2.2 Horizontal bolts . 28
B.2.3 Bracket welds . 28
B.2.4 Allowable stress . 28
B.2.5 Typical mounting . 29
B.3 Calculation of vertical bolts .
...