Compression Fittings

Compression Fittings
Hobbs Couplings
The design of a Hobbs coupling allows the fittings to be screwed into a parallel BSP tapping and accurately located for position in both height and
direction before it is secured with the special coned locknut and seal. Wring locknut down metal to metal to create an effective seal.
Hobbs Straight Connector
Male parallel BSP thread both ends.
Hobbs Elbow Adaptor
Female O/D tube to male parallel BSP thread.
D1
J
ØM
B1
ØS
B
E
F
ØK
F
ØA
G1
G
D1
G
J1
D
ØS
B
K
E
Product B B1 D D1 E F G G1 M S
number thread thread A/F A/F
BSP BSP
18 238 1818 1 ⁄ 8" 1 ⁄ 8" 27,0 7,0 17 13 14,0 7,4 13 5,0
18 238 2828 1 ⁄ 4" 1 ⁄ 4" 35,5 8,4 19 19 17,5 11,0 18 7,0
18 238 3838 3 ⁄ 8" 3 ⁄ 8" 40,0 9,6 24 24 20,0 11,4 22 10,0
18 238 4848 1 ⁄ 2"
1 ⁄2" 48,0 10,9 27 27 23,0 15,0 26 13,6
18 238 6868 3 ⁄ 4" 3 ⁄ 4" 52,5 10,9 32 36 25,4 16,3 32 19,0
18 238 8888 1" 1" 64,0 13,3 41 41 31,8 19,1 39 25,0
18 238 1828 1 ⁄ 4" 3 ⁄ 8" 31,5 7,0 17 17 17,5 7,4 14 5,0
18 238 2838 3 ⁄ 8" 1 ⁄ 4" 39,0 8,4 19 19 20,0 11,0 18 7,0
18 238 3848 1 ⁄ 2" 3 ⁄ 8" 44,0 9,6 24 24 23,0 11,4 22 10,0
18 238 4868 3 ⁄ 4" 1 ⁄ 2" 51,0 10,9 27 27 25,4 15,0 26 13,6
18 238 6888 1" 3 ⁄ 4" 61,0 10,9 32 36 31,8 16,3 32 19,0
Product A B D1 E F G J J1 K S
number O/D thread A/F A/F
tube BSP
18 258 0418 4 1 ⁄ 8" 7,0 17 8 14,0 20,9 22,0 11,3 4,7
18 258 0518 5 1 ⁄ 8" 7,0 17 10 14,0 23,0 22,0 14,3 4,7
18 258 0618 6 1 ⁄ 8" 7,0 17 13 14,0 23,5 22,0 14,3 4,7
18 258 0818 8 1 ⁄ 8" 7,0 17 13 14,0 27,5 23,8 15,8 4,7
18 258 0428 4 1 ⁄ 4" 8,4 19 8 17,5 21,7 25,4 14,3 6,3
18 258 0528 5 1 ⁄ 4" 8,4 19 10 17,5 23,7 25,4 14,3 6,3
18 258 0628 6 1 ⁄ 4" 8,4 19 13 17,5 24,2 25,4 14,3 6,3
18 258 0828 8 1 ⁄ 4" 8,4 19 13 17,5 28,6 27,0 15,8 6,3
18 258 1028 10 1 ⁄ 4" 8,4 19 17 17,5 29,7 30,1 23,8 6,3
18 258 1228 12 1 ⁄ 4" 8,4 19 19 17,5 31,2 30,1 23,8 6,3
18 258 0638 6 3 ⁄ 8" 9,6 24 13 20,0 25,2 30,2 17,4 9,6
18 258 0838 8 3 ⁄ 8" 9,6 24 13 20,0 29,8 30,2 17,4 9,6
18 258 1038 10 3 ⁄ 8" 9,6 24 17 20,0 31,3 33,0 20,0 9,6
18 258 1230 12 3 ⁄ 8" 9,6 24 19 20,0 33,5 33,0 23,8 9,6
18 258 1638 16 3 ⁄ 8" 9,6 24 24 20,0 36,5 35,0 28,6 9,6
18 258 0848 8 1 ⁄ 2" 10,9 27 13 23,0 31,4 36,5 23,8 12,7
18 258 1048 10 1 ⁄ 2" 10,9 27 17 23,0 33,0 36,5 23,8 12,7
18 258 1248 12 1 ⁄ 2" 10,9 27 19 23,0 34,4 36,5 23,8 12,7
18 258 1648 16 1 ⁄ 2" 10,9 27 24 23,0 38,5 38,0 28,6 12,7
18 258 2248 22 1 ⁄ 2" 10,9 27 30 23,0 44,0 42,0 36,5 12,7
18 258 1668 16 3 ⁄ 4" 10,9 32 24 25,4 40,5 43,7 31,8 17,5
18 258 2268 22 3 ⁄ 4" 10,9 32 30 25,4 47,5 45,2 36,5 17,5
18 258 2868 28 3 ⁄ 4" 10,9 32 41 25,4 53,3 49,0 44,5 17,5
18 258 2288 22 1" 13,3 41 30 32,0 49,5 50,8 36,5 24,0
18 258 2888 28 1" 13,3 41 41 32,0 57,5 56,5 44,5 24,0
Our policy is one of continuous research and development. We therefore reserve the
06/97 N/AL 9.6.002.019
right to amend, without notice, the specifications given in this document.