Rubber hose – Flexible hose high pressure – Hose assemblies – Quick coupling – Flexibles for fluid transfer

Raccord vapeur NF EN 14423

Clamp type coupling NF EN 14423

Clamp type coupling assemblies for use with steam hoses rated for pressures up to 18 bar

Features :

The spud part of the coupling serves as one half of the connection and is usually fixed to the equipment.
The stem part that is clamped to the hose is the other half.
The two halves are connected or disconnected by rotating the wing nut onto the spud.
When connected they achieve a mechanical, as well as, a pressure seal.

Services :

Couplings are all-purpose hose couplings, universally recommended for steam hose connections.
They are also widely used for air, water, fluid petroleum, chemicals and liquid petroleum gas up to 1” ID.
Couplings can be applied to many types of rubber, synthetic, plastic, metallic or semi-metallic hose.
Consult the factory for specific media capabilities.

Purpose :

Couplings supply a convenient threaded fitting to connect two lengths of hose, or a single length to a male or female threaded (NPT) outlet.

Material :

• Stem: ¼” - 1” plated steel, 1¼” - 4” plated iron, 6” tubular steel
• Spud: ¼” - 1” plated steel, 1¼” - 6” plated iron
• Wing nut: ¼” - 1” plated steel, 1¼” - 6” plated iron

Seal Types :

• Ground joint: copper or polymer seats
• Washer: Klingersil® C-4401

  1. Steam hose coupling
  2. Coupling assembly
  3. Types of connectors
  4. Tail end fittings
  5. Connectors
  6. Clamps
  7. Bolts and nuts

Sizes : DN13 to DN25.

Pressure (All sizes): Maximum working pressure 18 bar.

Maximum working temperature : Steam +210°C (410°F) - Hot Water +120°C (248°F)

Details : Suitable for fixing to steam hoses to BS EN 14423:2004 with safety clamps. All steam fittings are supplied with corresponding brass safety clamps.


Raccord vapeur femelle
 
BS EN 14423:2004 STEAM HOSE FEMALE COUPLING
PART NO. HOSE SIZE THREAD MATERIAL
SCF13x6 Br 13 x 6 1/2” BSP Pl. Brass
SCF19x7 Br 19 x 7 3/4” BSP Pl. Brass
SCF25x7.5 Br 25 x 7.5 1” BSP Pl. Brass

Raccord vapeur male
 
BS EN 14423:2004 STEAM HOSE MALE COUPLING
PART NO. HOSE SIZE THREAD MATERIAL
SCM13x6 Br 13 x 6 1/2” BSPT Brass
SCM19x7 Br 19 x 7 3/4” BSPT Brass
SCM25x7.5 Br 25 x 7.5 1” BSPT Brass
Design
For 1 to 5 see Table
a : Connector end
b : Tail end
List of coupling assembly components
Item number Number of parts needed for one assembly Denomination
1 1 Tail end fitting
2 2 Clamp
3 4 Hexagon socket head cap screw
4 4 Hexagon nut
5 1 Connector
Illustration Type Description Nominal size
DN
Thread size L1

mm
Details
Connectors type FL FL PN 40 loose flange with weld-neck collar as in EN 1092-1 15
20
25
32
40
50
  110
115
115
125
140
155
Connectors FL
 Connectors type FV FV PN 40 weld-neck flange as in
EN 1092-1
  Hose fittings with weld neck flange
 Connectors type G G Union nut with thread gasket, with parallel thread according to EN ISO 228-1a 15
20
25
32
40
50
G ½
G ¾
G 1
G 1¼
G 1½
G 2
80
80
80
90
105
115
Hose fittings with union nut
 Connectors type GA GA Tapered male thread with external thread according to EN 10226-1a 15
20
25
32
40
50
R ½
R ¾
R 1
R 1¼
R 1½
R 2
95
95
100
110
125
140
Hose fittings with tapered male thread
a Other threads may be agreed between the purchaser and manufacturer.

The tail end fittings of hose couplings shall have the dimensions given in Table.
Their outer surface shall be formed by machining, the surface roughness Ra of 3,2 μm.

Tail end fittings
a : Deburred
b : Ribs
Dimensions in millimetres
Nominal size
DN
d1
± 0,2
d2
± 0,2
d3
± 0,3
d4
± 1,0
d5
± 0,1
f1
+ 0,5
0
k
0
− 0,2
l2
± 1
l3 Number or ribs l4 l5 r1
15 13 15 9 20 13 6 4 62 9 4 8 40 2
20 19 21 14 26 19 6 4 62 9 4 8 40 2
25 25 27 20 33 25 6 4 62 9 4 8 40 2
32 32 34 27 40 32 7 5 72 9 5 8 48 2
40 38 40,5 33 46 38 7 5 84 13 5 10 60 2,5
50 50 52,5 44 59 50 8 6 89 12 5 10 60 2,5
The weld-neck collar may either be integral to the tail end fitting or welded to it.
The maximum length of type FL and FV fittings shall be in accordance with Table.

Weld-neck collar PN 40 according to EN 1092-1
Loose flange PN 40 according to EN 1092-1
Maximum length of type FL and FV fittings
Nominal size
DN
l6, l7
max.
15 108
20 110
25 110
32 122
40 137
50 149
EXAMPLE :
Ordering designation for a type FL hose fitting (SFL), (without loose flange), for use with DN 20, in carbon steel (1.0038), hoses:
Hose fitting EN 14423 — SFL 20 — 1.0038

Weld-neck flange PN 40
Maximum length of type FL and FV fittings
Nominal size
DN
l6, l7
max.
15 108
20 110
25 110
32 122
40 137
50 149
EXAMPLE :
Ordering designation for a type FV hose fitting (SFV) for use with DN 20 hoses, in carbon steel (1.0038):
Hose fitting EN 14423 — SFV 20 — 1.0038

Welding weld-neck collars to the tail end is optional for type FL fittings.
Weld-neck flanges of type FV hose fittings shall be jointed with the tail end fitting by welding.
Weld details shall be according to Table.
The welding procedures shall be in accordance with EN ISO 15607.


a : Flange or weld-neck
b : Tail end fitting

Weld details
Nominal size
DN
d6 l8 s1
15 21,3 8 3,2
20 26,9
25 33,7
32 42,4 9 3,6
40 48,3 9 3,6
50 60,3 10 4

A hose fitting with union nut (Type G) is shown in Figure.
The design of type G hose fittings shall be in accordance with Table.

a : Tail end fitting
b : Wire ring ∅ 3 mm, nearly closed
c : Thread gasket
d : Width across flats, s

Hose fitting with union nut
Nominal size
DN
Thread size as in
EN ISO 228-1 a
d7
d8 d9
0
− 0,5
d10
± 1
d11
+ 0,2
0
l9 l10
+ 0,5
0
l11 l12 l13 s
15 G ½ 18,3 20 13 21,5 9,5 20,5 82,5 4 20 27
20 G ¾ 24 26 18 26,5 13,5 24,5 86,5 24 32
25 G 1 30,2 33 23 33,5 14,5 25,5 87,5 5 25 41
32 G 1¼ 38,8 42 33 42,5 14,5 25,5 97,5 50
40 G 1½ 44,8 48 38 48,5 16,5 27,5 111,5 27 55
50 G 2 56,5 60 49 60,5 17,5 28,5 119,5 28 70
a : Other types of threads are to be agreed between purchaser and manufacturer.
EXAMPLE 1 :
Ordering designation for a type G hose fitting (SG) with a union nut secured by a wire ring, without thread gasket, for use with DN 20 hoses made of carbon steel (1.0038):
Hose fitting EN 14423 — SG 20 — 1.0038
EXAMPLE 2 :
Ordering designation for a thread gasket (D) for type G hose fittings for use with DN 20 hoses:
Thread gasket EN 14423 — DG 20

A hose fitting with tapered male thread (Type R) is shown in Figure.
The design of type R hose fittings shall be in accordance with Table.

a : Width across flats, s

Dimensions of R type fittings
Nominal size
DN
Thread sizes as
in EN 10226-1a d12
l14
min.
l15 l16 s
15 R ½ 16 12 90 22
20 R ¾ 17 12 91 27
25 R 1 21 12 95 36
32 R 1¼ 21 12 105 46
40 R 1½ 22 12 118 50
50 R 2 26 14 131 60
a : Other types of threads are to be agreed between purchaser and manufacturer.
EXAMPLE :
Ordering designation for a type R hose fitting (SR) for use with DN 20 hoses, in carbon steel (1.0038):
Hose fitting EN 14423 — SR 20 — 1.0038

A hose fitting with coned end (Type RI) is shown in Figure.
The design of type RI hose fittings shall be in accordance with Table.

1 : Cone end
2 : Grooved union nut
a : Tail end fitting

Nominal size
DN
a
Type of cone end
d l l
15 B15 24 17 79
20 B20 30 18 80
25 B25 35 22 84
a : Type of conical end should be in accordance with DIN 11851.
EXAMPLE :
Ordering designation for a type RI hose fitting (SRI) with cone end, without union nut, for use with DN 20 hoses, made of carbon steel (1.0038):
Hose fitting EN 14423 — SRI 20 — 1.0038

A hose fitting with stud end (Type RA) is shown in Figure.
The design of type RA hose fittings shall be in accordance with Table

1 : Main gasket
2 : Stud end
a : Width across flats, s
b : Tail end fitting

Dimensions of RA type hose fittings
Nominal size
DN
Thread size
d14
d15 l19 l20 l21 S
15 Rd 34 × 1/8 28 12 9 83 24
20 Rd 44 × 1/6 31 14 10 86 27
25 Rd 52 × 1/6 40 14 11 87 36
EXAMPLE :
Ordering designation for a type RA hose fitting (SRA) with stud end, without main gasket, for use with DN 20 hoses, made of carbon steel (1.0038):
Hose fitting EN 14423 — SRA 20 — 1.0038

Clamps

Clamp designs are given in Figure.
Clamps shall be designed according to dimensions specified in Table.Dimensions
EXAMPLE :
Ordering designation for a clamp (KBS), for use with DN 20 hoses, in wrought copper alloy (CW614N):
Clamp EN 14423 — KBS 20 — CW614N
Clamp dimensions
Nominal size
DN
b1 b2 d16 Number of ribs e1 e2
± 0,2
e3
± 0,2
e4 f2 f3 l22 l23 l24 l25
  Tolerances
15 53 ± 1 10,3 7 5 1,5 37 16 24,5 8 3 65 4 14,5 3
20 68 ± 2 13,4 9,5 5 1,5 48 19 23 8 3 65 4 14 4
25 77 + 3
− 2
13,4 9,5 5 1,5 58 19 23 8 3 65 4 14,5 4
32 86 13,4 9,5 5 2,5 65 20 20 8 3 75 5 14 5
40 101 17,3 12 6 2,5 75 28 25 10 4 90 5 17 5
50 111 17,3 12 6 2,5 86 28 36 10 4 100 6,5 18,5 5

Clamp dimensions
Nominal size
DN
r1 r2 r3 r4 r5 Number of ribs
  Tolerances   Tolerances   Tolerances   Tolerances   Tolerances with r3 with r4 with r5
15 12,5 ± 0,25 6,75 ± 0,2 9,5 ± 0,2 10 ± 0,2 10,5 ± 0,25 3 1 1
20 16,5 9,75 13,5 ± 0,25 14 ± 0,25 14,5 3 1 1
25 20 ± 0,3 12,75 ± 0,25 17 17,5 18 3 1 1
32 24,5 16,5 21,5 ± 0,3 22 ± 0,3 22,5 ± 0,3 3 1 1
40 27,5 19,5 ± 0,3 24,5 25 25,5 3 2 1
50 34,5 ± 0,4 25,5 31 ± 0,4 31,5 ± 0,4 32 ± 0,4 3 2 1

Clamp dimensions
Nominal size
DN
r6 r7 r8 r9 r10 t1 t2
  Tolerances
15 14 ± 0,25 1 1 4 0,5 5 10
20 18 1 1 5 0,5 5,5 11
25 21,5 ± 0,3 1 1 5 0,5 6 12
32 26 2 3 6 1 6 12
40 29 2 3 6 1 7 17
50 35 ± 0,4 2,5 3 6 1,3 7 17

Bolts and nuts

The sizes of bolts and nuts to be used with clamps shall be in accordance with Table.

Bolts and nuts
Nominal size
DN
Size of screw as in
EN ISO 4762
Size of nuts as in EN ISO 4032
15 M6 × 20 M6
20 M8 × 25 M8
25 M8 × 25 M8
32 M8 × 25 M8
40 M10 × 40 M10
50 M10 × 40 M10