SIST EN 15202:2020

SLOVENSKI STANDARD
SIST EN 15202:2020
01-februar-2020
Nadomešča:
SIST EN 15202:2012
Oprema in pribor za utekočinjeni naftni plin (UNP) - Glavne mere izhodnega
priključka ventila jeklenke za UNP ter priključkov pripadajoče opreme
LPG equipment and accessories - Essential operational dimensions for LPG cylinder
valve outlet and associated equipment connections
Flüssiggas-Geräte und Ausrüstungsteile - Grundlegende Betriebsmaße für
Ausgangsanschlüsse von Flaschenventilen für Flüssiggas (LPG) und zugehörige
Anschlüsse für Geräte
Équipements pour GPL et leurs accessoires - Dimensions opérationnelles essentielles
des connexions des robinets et valves de bouteilles de GPL et des équipements
associés
Ta slovenski standard je istoveten z: EN 15202:2019
ICS:
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
SIST EN 15202:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 15202:2020

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SIST EN 15202:2020


EN 15202
EUROPEAN STANDARD

NORME EUROPÉENNE

December 2019
EUROPÄISCHE NORM
ICS 23.060.40 Supersedes EN 15202:2012
English Version

LPG equipment and accessories - Essential operational
dimensions for LPG cylinder valve outlet and associated
equipment connections
Équipements pour GPL et leurs accessoires - Flüssiggas-Geräte und Ausrüstungsteile -
Dimensions opérationnelles essentielles des Grundlegende Betriebsmaße für Ausgangsanschlüsse
connexions des robinets et valves de bouteilles de GPL von Flaschenventilen für Flüssiggas (LPG) und
et des équipements associés zugehörige Anschlüsse für Geräte
This European Standard was approved by CEN on 23 September 2019.

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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15202:2019 E
worldwide for CEN national Members.

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EN 15202:2019 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 6
5 Design . 7
6 Connections in use . 76
7 Unsafe connections . 76
8 Tightening torque . 76
9 Marking . 76
Annex A (informative) Connections by country . 77
Annex B (normative) Unsafe connections . 79
Bibliography . 80

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EN 15202:2019 (E)
European foreword
This document (EN 15202:2019) has been prepared by Technical Committee CEN/TC 286 “Liquefied
petroleum gas equipment and accessories”, the secretariat of which is held by NSAI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2020, and conflicting national standards shall be
withdrawn at the latest by June 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 15202:2012.
The revisions to this document include amendments to figures and/or tables for:
— Figure 2 (G.2),
— Figure 7 (G.7),
— Figure 10 (G.10),
— Figure 15 (G.29),
— Figure 16 (G.30),
— Figure 20 (G.50),
— Figure 22 (G.52),
— Figure 23 (G.53),
— Figure 26 (G.56),
— Figure 27 (G.57).
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the United
Kingdom.
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Introduction
The primary objective of this document is to ensure the safe connection of LPG cylinder valves to their
connectors.
This document is the fundamental source for identifying the essential manufacturing dimensions of the
LPG cylinder valve connections used in Europe.
EN 16129 is the fundamental source for identifying the essential manufacturing dimensions of connector
types that are not used in LPG cylinder valve connections.
This document identifies the existing cylinder valves and the connectors that are currently in use with
LPG.
It is the intention that only connections which are identified in this document should be used with LPG
cylinder valves.
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1 Scope
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.
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 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment
EN 560, Gas welding equipment – Hose connections for equipment for welding, cutting and allied processes
ISO 4658, Acrylonitrile-butadiene rubber (NBR) – Evaluation procedure
ANSI/CGA V-1, American National, Compressed Gas Association Standard for Compressed Gas Cylinder
Valve Outlet and Inlet Connections
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
liquefied petroleum gas
LPG
low pressure gas composed of one or more light hydrocarbons which are assigned to UN 1011, UN 1075,
UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane, butane
isomers, butene with traces of other hydrocarbon gases
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3.2
connector
device that attaches to a cylinder valve to allow the passage of LPG to or from the cylinder
3.3
valve operating mechanism
mechanism that opens the valve when, or after, a regulator or connector is fitted and closes the valve
automatically when, or before, a regulator or connector is disconnected
4 Symbols and abbreviations
NBR Nitrile Butadiene Rubber (Acrylonitrile-butadiene rubber) (see ISO 4658).
STP Standard Temperature and Pressure [15,6 °C (288,7 K), 1,013 bar absolute (0,101 3 MPa
absolute)]
IRHD International Rubber Hardness Degrees
LH Left hand
RH Right hand
INT Internal thread
EXT External thread
ref make reference to
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5 Design
The dimensions shall be in accordance with those given in the following figures.
The travel distance of the valve operating mechanisms is identified where required.
The drawings show the location of sealing elements where required.
Any hexagon nut with a left hand (LH) thread shall, for easy identification, have notches (for example a
60° V groove) midway at the corners of each adjoining spanner flat. Where concentricity and surface
finish are not specified, the requirements shall be as specified by the manufacturer.
New valve/connection proposals shall not make an unsafe connection or interference fit with the valves
and connectors shown in this document.
NOTE The figure titles contain connection type numbers preceded by the letter “G” to maintain consistency
with EN 12864.
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Dimensions in millimetres

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Key
  Connector/Nut Seal Thread
a +0,37
1 nut A1 ∅ 14- ∅ 15 +0,1 B1 ∅ 16,8 - ∅ 17 T1 ∅ 20 min
2 connector A2 ∅ 10,5 - ∅ 10,6 B2 ∅ 10,2 - ∅ 10,4 T2 ∅ 18,838 – ∅ 19,973
3 seal A3 ∅ 17,4 - ∅17,5 B3 2,0 – 2,2 T3 ∅ 17,696 – ∅ 18,266
4 valve A4 4,8 – 5,2 Seal material shall be NBR or T4 1,814
equivalent, or EN 549
5 nut thread A5 2,9 – 3,1 T5 55°
A2/H3
6 valve A6 14 min Valve T6 R 0,249
thread
  A7 20 × 1,814 LH C1 20 × 1,814 LH T7 ∅ 19,589 – ∅ 19,98
-0,1
  A8b ∅ A1 ( -0,37) C2 ∅ 14,3 – 14,7 T8 ∅ 18,703 – ∅ 18,838
  A9 2,9 – 3,1 C3 ∅ 11,1 – 11,3 T9 ∅ 17,317 – ∅ 17,676
  A10 11 min C4 ∅ 6,8 - ∅ 7,2
  A11 15,8 – 16,2 C5 R0,3 – R0,7
  A12 25 A/F C6 6,0 – 6,3

  A13 ∅ 8,4 max C7 7,0 – 10,0
  C8 11 min
  C9 0,5 × 90°

a
  The dimension A1 shall be chosen from the range given in the table and shall be
considered the nominal dimension.

b
  The dimension A8 is based on the nominal dimension chosen for A1.
Figure 1 — Type G.1 – Threaded connection 20 × 1,814 LH - Spanner tightened
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Key
  Nut Connector Black Seal
1 nut A1 21,8 × 1,814 LH B1 ∅ 18,5 – ∅ 18,7 C1 ∅ 17,7 - ∅ 18,0
a +0,37
2 connector A2 ∅ 14- ∅ 16 +0,1 B2 ∅ 12,2 – ∅ 12,3 C2 ∅ 10,7 - ∅ 11,0
3 black seal A3 ∅ 24,6 min B3 ∅ 11,1 – ∅ 11,3 C3 1,7 – 2,0
4 seal A4 7,5 min B4 0,9 – 1,0 Material shall be:
a) NBR or equivalent; or
5 valve A5 7,5 – 8,1 B5 2,0 – 2,2 b) EN 549 A2/H3
6 nut thread A6 9,9 – 10,5 B6 2,4 – 2,6 Thread
7 valve A7 12,5 min B7 ∅ 9,0 max T1 ∅ 21,8 min
thread
b –0,1
  A8 5 wings equally spaced B8 ∅ A2 –0,37 T2 ∅ 20,622 – ∅ 20,722
  Valve Seal T3 ∅ 19,444 – ∅ 19,544
  D1 21,7 × 1,814 LH E1 ∅ 13,35 - ∅ 13,65 T4 1,814
  D2 ∅ 13 – 13,1 E2 ∅ 8,0 - ∅ 8,4 T5 60°
  D3 8,6 – 8,7 E3 7,5 – 7,8 T6 R 0,249
  D4 7,8 – 8,0 Material shall be: T7 ∅ 21,435 – ∅ 21,666
a) NBR or equivalent; or
  T8 ∅ 20,372 – ∅ 20,488
  T9 ∅ 19,344 max
b) EN 549 A2/H3
a
  The dimension A2 shall be chosen from the range given in the table and shall be
considered the nominal dimension.
b
  The dimension B8 is based on the nominal dimension chosen for A1.
Figure 2 — Type G.2 – Threaded connection 21,7 × 1,814 LH - 60°– Hand tightened
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Key
  Connector Seal
1 connector A1 ∅ 27 - ∅ 27,21 B1 ∅ 25,7 - ∅ 26,3
2 seal A2 ∅ 13,9 - ∅ 14,1 B2 ∅ 14,0 - ∅ 14,6
3 gasket A3 ∅ 3,0 - ∅ 3,2 B3 1,35 – 1,65
4 valve A4 ∅ 6,4 - ∅ 6,6 Material shall be:
a) NBR or equivalent; or
5 example of one configuration of the inlet/gas A5 ∅ 13,7 - ∅ 13,9
passage to the connector
A6 M16 × 1,5-6g
b) EN 549 A2/H3
A7 1,6 – 1,8 Valve
  A8 1,4 – 1,6 D1 M16 × 1,5 – 6H
  A9 3,9 – 4,1 D2 ∅ 8,4 – ∅ 8,6
  A10 1,2 – 1,4 D3 ∅ 26,5 – ∅ 27,3
  A11 13,4 – 13,6 D4 1 × 45°
  Gasket D5 10,3 – 10,5
  C1 ∅ 7,5 ± 0,15 D6 10,2 – 10,6
  C2 ∅ 17,0 ± 0,1 D7 1,0 min
  C3 1,5 ± 0,15
  C4 4,0 ± 0,15
Figure 3 — Type G.3 – Threaded connection M16 × 1,5 RH - Hand tightened
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Key
  Connector/Nut Seal
1 nut A1 ∅ 18,8 - ∅ 19,2 A13 16,0 – 16,3 B1 ∅ 19,8 - ∅ 19,2
2 connector A2 √Ra 3,2 A14 W 21,8 × 1/1,814 LH B2 ∅ 11,6 - ∅ 12
DIN 477-1
3 seal A3 ∅ 11,3 - ∅ 11,7 A15 ∅ 30,0 – ∅ 30,1 B3 1,9 – 2,1
b –0,1
4 valve A4 ∅ 10,8 - ∅ 11,2 A16 ∅ A11 Material shall be:
–0,37
a) NBR or equivalent; or
  A5 ∅ 11,89 - ∅
12,0
b) EN 549 A2/H3
  A6 1,7 – 1,9
 A7 4,9 – 5,1 Valve
 A8 5,9 – 6,1 C1 W 21,8 × 1,814 LH
DIN 477-1
  A9 ∅ 8 max C2 ∅ 12,7 – ∅ 13,3
 A10 30 A/F C3 6,8 – 7,2

a
 A11 ∅ 14- ∅ 16 C4 9,0 min
+0,37

+0,1
  A12 21,0 – 21,3 C5 √Ra 3,2
    C6 11,5 min
  NOTE 1 For guidance on the selection of aluminium, see EN ISO 11114-1.
  NOTE 2 For guidance on the selection of polyamide, see EN ISO 11114-2.
a
  The dimension A11 shall be chosen from the range given in the table and shall be
considered the nominal dimension.
b
  The dimension A16 is based on the nominal dimension chosen for A11.
Figure 4 — Type G.4 – Threaded connection W 21,8 × 1,814 LH - 55°– Spanner tightened
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Key
 Connector/Nut Seal
1 nut A1 ∅ 29,8 - ∅ 30 B1 ∅ 18,8 - ∅ 19,2
a +0,37
2 connector A2 ∅ 14- ∅ 16 +0,1 B2 ∅ 6,9 - ∅ 6,95
3 seal A3 10,3 – 10,7 B3 1,9 – 2,1
a
4 valve A4 R 0,75 The seal material is polyamide
 A5 16,0 - 16,3 The connector/nut and seal also fits G.12 connection
 A6 21,0 – 21,3 Valve
A7 W 21,8 × 1/1,814 LH C1 W 21,8 × 1/1,814 LH DIN 477-1
DIN 477-1
A8 30 A/F C2 ∅ 12,7 – ∅ 13,3

b –0,1
 A9 ∅A2 C3 6,8 – 7,2
–0,37
 A10 17 min C4 9,0 min
 A11 3,9 – 4,1 C5 √Ra 3,2
 A12 6,8 – 7,2 C6 11,5 min
 A13 ∅ 18,8 – ∅ 19,2 C7 0,5 × 90°
 A14 ∅ 6,92 - ∅ 6,96
 A15 ∅ 3,9 - ∅ 4,1
 A16 √Ra 3,2
 NOTE For guidance on the selection of polyamide, see EN ISO 11114-2.
a
 The dimension A2 shall be chosen from the range given in the table and shall be
considered the nominal dimension.
b
 The dimension A9 is based on the nominal dimension chosen for A2.
Figure 5 — Type G.5 – Threaded connection W 21,8 × 1/1,814 LH – 55°– Spanner tightened
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Key
 Connector Seal Valve
1 nut A1 ∅ 15,8 - ∅ 16 B1 59° - 61° C1 W 22 x 1,155 LH
2 connector A2 ∅ 11 - ∅ 11,2 B2 ∅ 15 – ∅ 15,3 C2 ∅ 15,5 - ∅ 15,7
3 seal A3 ∅ 18,8 - ∅ 19 B3 ∅ 10,8 – ∅ 11,2 C3 ∅ 11,9 - ∅ 12,1
4 valve A4 2,9 – 3,1 B4 ∅ 5,8 – ∅ 6,0 C4 59° - 61°
 A5 2,8 – 3,2 B5 ∅ 8 + 3 deformation ribs C5 ∅ 8,0 - ∅ 8,05
 A6 6,3 – 6,7 B6 10,0 – 10,5 C6 11 min
A7 W 22 x 1,155 LH B7 1,0 – 1,2 C7 1,2 – 1,4
a
A8 ∅ 28,3 – ∅ 28,7 The seal material is polyamide C8 9 min
A9 11,8 – 12,2

a
 For guidance on the selection of polyamide, see EN ISO 11114-2.
Figure 6 — Type G.6 – Threaded connection W 22 × 1,155 LH – Hand tightened
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Key
 Connector/Nut Valve
a +0,37
1 nut A1 ∅ 13- ∅ 16 +0,1 C1 ISO 228 – G 5/8 LH
2 connector A2 ISO 228 – G 5/8 A LH C2 ∅ 14 datum
3 valve A3 17 – 18 C3 ∅ 11,5 max
 A4 ∅ 20,25 - ∅ 20,55 C4 59° - 61° √Ra 0,8
 A5 ∅ 14,0 datum C5 20,35 – 20,65
A6 R18,75 – 19,25 √Ra 0,8 C6 17,75 – 18,25
 A7 9,8 – 10,8 C7 14,3 min
 A8 7,85 – 8,15 C8 ∅ 31,75 min
 A9 9,5 C9 R 0,5 - 1,0
b -0,1
 A10 ∅ 13 - ∅ 16 -0,37
 A11 24 A/F; 28 A/F; 30,5 A/F
 A12 25 min
 A13 12,5 min
 A14 ∅ 9 max
a
 The dimension A1 shall be chosen from the range given in the table and shall be
considered the nominal dimension.
b
 The dimension A10 is based on the nominal dimension chosen for A1.
WARNING
G.9 type should not be fitted into the G.7 type as this can produce an unsafe connection
Figure 7 — Type G.7 – Threaded connection G 5/8 LH – Spanner tightened
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Key
  Connector/Nut Seal
1 nut A1 ∅ 18,85 - ∅ 19,15 B1 ∅ 10,0 - ∅ 10,25
2 connector A2 ∅ 11,75 - ∅ 12,15 B2 ∅ 17,25 - ∅ 17,75
3 seal A3 ∅ 10,00 - ∅ 10,15 B3 1,5 – 1,75

b -0,1
4 valve A4 ∅A9 Seal material shall be NBR or equivalent, or EN 549
-0,37
A2/H3
 A5 1,4 – 1,70
 A6 3,25 – 3,75 Valve
 A7 4,25 – 4,75 C1 ∅ 12,55 - ∅ 12,85
 A8 21,8 × 1/1,814 6H LH ISO 68-1 C2 21,8 × 1/1,814 6g LH ISO 68-1
a +0,37
 A9 ∅ 13- ∅ 16 +0,1 C3 7,5 – 8,5
 A10 9 min C4 6 min
 A11 17 min C5 10,5 min
 A12 28 A/F; 30,5 A/F C6 16,0 ± 0,15
 A13 12,75 – 13,25 C7 0,7
 A14 ∅ 8 max C8 60°
   C9 R 0,2 max
a
 The dimension A9 shall be chosen from the range given in the table and shall be
considered the nominal dimension.
b
The dimension A4 is based on the nominal dimension chosen for A9.
Figure 8 — Type G.8 – Threaded connection 21,8 × 1/1,814 – LH- Spanner tightened
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Key
 Connector/Nut Valve Thread
+0,37
1 nut A1 ∅ 13- ∅ 16 +0,1 C1 0,885 inch – 14NGO a – T1 ∅ 22,479 min
LH INT
a
2 connector A2 0,880 inch – 14NGO – LH EXT C2 ∅ 11,1 max T2 ∅ 21,30 – ∅ 21,39
3 valve A3 17,07 – 17,83 C3 59° - 61° √Ra 0,8 T3 ∅ 20,51 – ∅ 20,71
4 nut thread A4 ∅ 19,0 - ∅ 19,1 C4 25,4 min T4 1,814
5 valve thread A5 R19,05 √Ra 0,8 C5 17,07 – 17.83 T5 60°
 A6 ∅ 18,6 - ∅ 18,9 C6 14,3 min T6 R 0,249
a
NGO – National A7 10,2 – 10,4 C7 3,18 min T7 ∅ 22,22 – ∅ 22,35
Gas Outlet in -0,1
A8 ∅A1 -0,37 C8 31,75 min T8 ∅ 21,08 – ∅ 21,17
accordance
A9 11,53 – 12,29 C9 17,07 – 17,83 T9 ∅ 20,125 max
with
A10 22,2 A/F; 24 A/F; 28,6 A/F;
ANSI/CGA V-1
30 A/F
 A11 25 min
 A12 13,5 min
 A13 ∅ 4 - ∅ 7
 A14 19,8 min
Figure 9 — Type G.9 – Threaded connection/Nut 0,885 NGO LH – Spanner tightened
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Key
 Connector/Nut Seal Thread
1 nut A1 Nom ∅ 13 - ∅ 16 B1 ∅ 19,9 - ∅ 18,1 T1 ∅ 22,479 min
b
2 connector A2 0,880 inch – 14NGO – LH B2 ∅ 9,4 - ∅ 9,6 T2 ∅ 21,30 – ∅ 21,39
EXT
3 seal A3 13 – 13,5 B3 9,9 – 10,1 T3 ∅ 20,51 – ∅ 20,71
4 valve A4 24 – 24,5 B4 ∅ 8,5 - ∅ 8,8 T4 1,814
5 nut thread A5 ∅ 19,7 - ∅ 19,9 B5 R12,9 – R13,1 T5 60°
6 valve A6 ∅ 3,5 – ∅ 5,5 Material shall be: T6 R 0,249
thread
a) NBR or equivalent; or
  A7 ∅ 8,2 – ∅ 8,4 T7 ∅ 22,22 – ∅ 22,35
b) EN 549 A2/H3
A8 ∅ 9,9 – ∅ 10,1 T8 ∅ 21,08 – ∅ 21,17
A9 11,7 – 11,9 Valve (same as G9) T9 ∅ 20,125 max
b
A10 8,7 – 8,9 C1 0,885 inch– 14NGO – LH
INT
A11 3,5 – 3,7 C2 ∅ 11,1 max
A12 59° – 61° C3 59° - 61° √Ra 0,8
A13 ∅ 18 h11 (0/-0,09) C4 25,4 min
A14 A1 (−0,2/-1) C5 17,07 – 17.83
a
A15 53 max C6 14,3 min
 C7 3,18 min
C8 31,75 min
C9 17,07 – 17,83
 NOTE NGO – National Gas Outlet in accordance with ANSI/CGA V-1.
a
Dimension A15 only applies to hand tightened connectors. Spanner tightened versions

may also be used with different dimensions.
Figure 10 — Type G.10 – Threaded connection 0,885 NGO LH – Rubber nose
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Key
 Connector/Nut Seal
1 nut A1 W 21,8 × 1,814 LH - DIN 477-1 B1 ∅ 17,0 - ∅ 17,3
+0,37
2 connector A2 ∅ 14- ∅ 16 +0,1 B2 ∅ 10,0 - ∅ 10,2
3 seal A3 17,8 – 18,2 B3 3,5 – 3,7
4 valve A4 13,8 – 14,2 B4 ∅ 16,0 – ∅ 16,3
 A5 ∅ 18,8 - ∅ 19,2 Material shall be:
–0,1
a) NBR or equivalent; or
 A6 ∅ A2 –0,37
 A7 ∅ 14,8 - ∅ 15,2
b) EN 549 A2/H3
 A8 ∅ 10,8 - ∅ 11,2 Valve
 A9 ∅ 6,92 - ∅ 6,96 C1 W 21,8 × 1,814 LH - DIN 477-1
 A10 ∅ 4 max C2 ∅ 16,9 – ∅ 17,1
 A11 1,9 – 2,1 C3 ∅ 15,9 - ∅ 16,1
 A12 10,8 – 11,2 C4 ∅ 9,9 - ∅ 10,1
 A13 3,9 – 4,1 C5 ∅ 7,04 – ∅ 7,1
 A14 5 wings equally spaced or similar C6 ∅ 0,9 - ∅ 1,1
 A15 R 0,9 – R 1,1 C7 12 min
 A16 ∅ 24,8 – ∅ 25,9 C8 3,5 – 3,7
 A17 9 min C9 9 min
Figure 11 — Type G.12 – Threaded connection W 21,8 × 1,814 LH – Hand tightened
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Key
 Nut Connector
1 nut A1 W 21,8 × 1,814 LH – DIN 477-1 B1 ∅ 18,8 - ∅ 19,2
2 connector A2 ∅ 16,15 - ∅ 16,26 B2 ∅ 15,84 - ∅ 15,95
3 seal A3 17,8 – 18,2 B3 ∅ 6,92 - ∅ 6,96
4 valve A4 13,8 – 14,2 B4 ∅ 5,4 - ∅ 5,6
 A5 5 wings equally spaced or similar B5 ∅ 2,9 - ∅ 3,1
  Also used with spanner flats 30 A/F B6 2,9 – 3,1
 A6 9 min B7 7 max
 Seal B8 3,9 – 4,1
 C1 ∅ 17 - ∅ 18 B9 14 min
 C2 ∅ 5,4 – ∅ 5,6 Valve
 C3 2,9 – 3,1 D1 W 21,8 × 1,814 LH - DIN 477-1
 Material shall be: D2 ∅ 12,7 - ∅ 13,3
a) NBR or equivalent; or
 D3 6,8 – 7,2
 D4 9 min
b) EN 549 A2/H3
Figure 12 — Type G.19 – Threaded connection W 21,8 × 1,814 LH – Hand tightened
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Key
 Connector Seal Valve
1 connector A1 ∅ 25,6 - ∅ 25,8 B1 ∅ 25,2 - ∅ 25,8 C1 ∅ 24,7 - ∅ 25,3
2 seal A2 W 14,8 × 1/18 B2 ∅ 13,2 ∅ 13,8 C2 ∅ 14,7 – ∅ 15,3
3 valve A3 ∅ 4,8 - ∅ 5,0 B3 1,8 – 2,2 C3 W 14,8 × 1/18
4 retaining ring A4 ∅ 1,9 - ∅ 2,1 Material shall be: C4 6,8 – 7,2
a) NBR or equivalent; or
5 lower seal A5 1,9 – 2,1 C5 1,5 × 45°
 A6 15,1 – 15,3 C6 11,3 – 11,7
b) EN 549 A2/H3
 A7 6,5 – 6,7 Lower seal C7 15,3 – 15,7
 D1 7,0 ± 0,1
 Material shall be:
a) NBR or equivalent; or

b) EN 549 A2/H3
Figure 13 — Type G.21 - Threaded connection W 14,8 × 1/18 – Hand tightened
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Key
 Connector (conforms with EN 560) Valve (conforms with EN 560)
1 nut A1 ISO 228 - G 3/8 LH C1 ISO 228 - G 3/8 LH
2 connector
3 valve NOTE For detailed dimensions see EN 560.
Figure 14 — Type G.25 – Threaded connection ISO 228 - G 3/8 LH – Spanner tightened
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Key
  Connector Valve
1 valve A6 ∅ 24,9 - ∅ 25,1 C1 1 1/4 inch × 5 ACME 2G
ANSI/ASME/B 1.5
2 “O” Ring A7 ∅ 15,8 - ∅ 15,85 C2 ∅ 22,96 - ∅ 23,11
3 seal A8 ∅ 21,2 - ∅ 21,4 C3 ∅ 21,46 - ∅ 21,59
4 connector A9 23,15 – 23,95 (Fully C4 ∅ 20,19 - ∅ 20,44
closed)
5 nut A10 17,85 – 19,85 (Fully C5 ∅ 16,00 - ∅ 16,13
open)
6 external thread A11 21,9 – 22,1 C6 ∅ 24,75 - ∅ 25,25
7 internal thread A12 30,00 – 30,15 C7 30 min
NOTE 1 This connection is similar to CGA V1 A13 2,37 – 2,63 C8 24,7 – 25,3
Connector 790
A14 4,6 – 4,8 C9 18,00 – 18,54
NOTE 2 The connector and the nut should be A15 15° C10 12,45 – 12,95
captive
A16 ∅ 6,3 C11 5,33 – 5,46
Nut A17 2,5 min C12 3,93 – 4,07
A1 ∅ 21,3 - ∅ 21,5 A18 √Ra0,8 C13 3,23 – 3,37
A2 1 1/4 inch × 5 ACME 2G A19 √Ra1,6 C14 13,75 – 14,25
ANSI/ASME/B 1.5
A3 ∅32,8 - ∅33,0 Seal C15 ∅ 1,3
A4 32,8 – 33,2 B1 ∅ 23,00 - ∅ 23,36 C16 R0,8
A5 6,8 – 7,2 B2 ∅ 15,82 - ∅ 16,48 C17 R2 max
B3 3,3 – 3,7 C18 ∅ 6,3
“O” Ring C19 √Ra1,6
B4 ∅ 15,41 - ∅ 15,67
B5 2,54 – 2,7 Screw
Material shall be: D1 Major ∅ 31,75 - ∅ 31,49
a) NBR or equivalent; or
D2 Pitch ∅ 28,98 - ∅ 28,47
D3 Minor ∅ 26,16 - ∅ 25,39
b) EN 549 A2/H3
D4 Major ∅ 32,26 - ∅ 32,77
D5 Pitch ∅ 29,21 - ∅ 29,72
D6 Minor ∅ 26,67 - ∅ 26,92
Figure 15 — Type G.29 – 1 1/4inch × 5 ACME liquid service connection – Hand tightened
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Key
 Connector Valve
1 valve A6 ∅ 24,9 - ∅ 25,1 C1 1 1/4 inch × 5 ACME 2G LH
ANSI/ASME/B 1.5
2 O Ring A7 ∅ 15,8 - ∅ 15,85 C2 ∅ 22,96 - ∅ 23,11
3 seal A8 ∅ 21,2 - ∅ 21,4 C3 ∅ 21,46 - ∅ 21,59
4 connector A9 23,15 – 23,95 (Fully C4 ∅ 20,19 - ∅ 20,44
closed)
5 nut A10 17,85 – 19,85 (Fully C5 ∅ 16,00 - ∅ 16,13
open)
6 external thread A11 21,9 – 22,1 C6 ∅ 24,75 - ∅ 25,25
7 internal thread A12 30,00 – 30,15 C7 30 min
NOTE 1 This connection is similar to A13 2,37 – 2,63 C8 24,7 – 25,3
CGA V1 Connector 790
A14 4,6 – 4,8 C9 18,00 – 18,54
NOTE 2 The connector and the nut A15 15 C10 12,45 – 12,95
should be captive
A16 ∅ 6,3 C11 5,33 – 5,46
Nut A17 2,5 min C12 3,93 – 4,07
A1 ∅ 21,3 - ∅ 21,5 A18 √Ra 0,8 C13 3,23 – 3,37
A2 1 1/4 inch × 5 ACME 2G LH A19 √Ra 1,6 C14 13,75 – 14,25
ANSI/ASME/B 1.5
Seal C15 ∅ 1,3
A3 ∅ 32,8 - ∅ 33,0 B1 ∅ 23,00 - ∅ 23,36 C16 R0,8
A4 32,8 – 33,2 B2 ∅ 15,82 - ∅ 16,48 C17 R2 max
A5 6,8 – 7,2 B3 3,3 – 3,7
...