Thread Type: BSPP (British Standard Parallel Pipe)
Thread Standard: ISO 8434-6 / BS 5200
Temperature Range: -40°C to +120°C (no pressure reduction)
Pressure Ratings:
Proof Pressure: 2× working pressure
Burst Pressure: 4× working pressure
Torque Guidance: Values based on lightly oiled steel threads; use as a guide only
Description
Ideal for connecting two different BSPP male thread sizes, this mild steel reducing adaptor with a 60° cone is designed for secure and leak-free sealing in hydraulic and pneumatic systems. It conforms to ISO and BS standards for reliable interchangeability and dimensional accuracy. Suitable for a broad range of pressure ratings and temperature conditions, it delivers consistent performance in demanding industrial environments.
Key Features & Benefits
Material Strength: Manufactured from robust mild steel for long service life
Thread Configuration: Reducing BSPP male-to-male for joining dissimilar thread sizes
Seal Type: 60° cone provides secure metal-to-metal sealing
Standards Compliance: Meets ISO 8434-6 and BS 5200 requirements
Temperature Performance: Operates effectively from -40°C to +120°C with pressure tolerance
Application Range: Suitable for both hydraulic and pneumatic systems
Manufacturing Quality: Produced in compliance with ISO 9001 for assured reliability
Downloads
Burnett & Hillman Pressure Guide
SKU
Product Code
T1 (")
T2 (")
B1 (")
B2 (")
L1 (")
L2 (")
O/L (")
A/F (mm)
378945
1BP0204
1/8
1/4
0.137
0.185
0.44
0.45
1.13
19
378946
1BP0206
1/8
3/8
0.137
0.312
0.44
0.52
1.18
22
378947
1BP0208
1/8
1/2
0.137
0.437
0.44
0.6
1.29
27
378948
1BP0406
1/4
3/8
0.185
0.312
0.45
0.52
1.19
22
378949
1BP0408
1/4
1/2
0.185
0.437
0.45
0.6
1.3
27
378950
1BP0410
1/4
5/8
0.25
0.593
0.45
0.7
1.45
30
378951
1BP0412
1/4
3/4
0.185
0.659
0.45
0.75
1.51
32
378952
1BP0416
1/4
1
0.185
0.875
0.45
0.8
1.6
41
378953
1BP0420
1/4
1 1/4
0.25
1.203
0.7
0.8
1.925
50
378954
1BP0432
1/4
2
0.185
1.812
0.7
1
2.25
70
378955
1BP0608
3/8
1/2
0.312
0.437
0.52
0.6
1.37
27
378956
1BP0610
3/8
5/8
0.312
0.562
0.52
0.7
1.5
30
378957
1BP0612
3/8
3/4
0.312
0.659
0.52
0.75
1.58
32
378958
1BP0616
3/8
1
0.312
0.875
0.52
0.8
1.67
41
378959
1BP0624
3/8
1 1/2
0.342
1.437
0.812
0.85
2.162
55
378960
1BP0810
1/2
5/8
0.437
0.562
0.6
0.7
1.58
30
378961
1BP0812
1/2
3/4
0.437
0.659
0.6
0.75
1.66
32
378962
1BP0816
1/2
1
0.437
0.875
0.6
0.8
1.75
41
378963
1BP0820
1/2
1 1/4
0.437
1.125
0.6
0.8
1.8
50
378964
1BP0824
1/2
1 1/2
0.437
1.312
0.6
0.85
1.9
55
378965
1BP0832
1/2
2
0.437
1.812
0.6
1
2.1
70
378966
1BP1012
5/8
3/4
0.562
0.659
0.7
0.75
1.76
32
378967
1BP1016
5/8
1
0.593
0.875
0.7
0.8
1.85
41
378968
1BP1020
5/8
1 1/4
0.562
1.125
0.7
0.8
1.85
50
378969
1BP1216
3/4
1
0.659
0.875
0.75
0.8
1.9
41
378970
1BP1220
3/4
1 1/4
0.659
1.125
0.75
0.8
1.95
50
378971
1BP1224
3/4
1 1/2
0.659
1.312
0.75
0.85
2.05
55
378972
1BP1232
3/4
2
0.659
1.812
0.75
1
2.28
70
378973
1BP1620
1
1 1/4
0.875
1.125
0.8
0.8
2
50
378974
1BP1624
1
1 1/2
0.875
1.312
0.8
0.85
2.1
55
378975
1BP1632
1
2
0.875
1.812
0.8
1
2.3
70
378976
1BP1640
1
2 1/2
0.875
2.37
0.8
1
2.42
3.25"
378977
1BP2024
1 1/4
1 1/2
1.125
1.312
0.8
0.85
2.1
55
378978
1BP2032
1 1/4
2
1.125
1.812
0.8
1
2.3
70
378979
1BP2428
1 1/2
1 3/4
1.312
1.547
0.85
1
2.35
65
378980
1BP2432
1 1/2
2
1.312
1.812
0.85
1
2.35
70
378981
1BP2440
1 1/2
2 1/2
1.312
2.37
0.85
1
2.47
3.25"
378982
1BP2832
1 3/4
2
1.547
1.812
1
1
2.5
70
IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.
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