Port Connections

Assembly of BSPP straight port connections
Assembly of BSPP straight port connections

BSPP Thread G

ISO 1179-1

DIN 3852 T2

Assembly torques for BSPP threads
Product Series Tube O.D Thread size T Inch Straight male stud fittings with port tapping Non- return valves RHV/RHZ From E with ED sealing  Banjo fittings Adjustable ends Blanking plugs
Form A for sealing washer Nm Form B with cutting - face Nm Form E with ED -sealing Nm O-ring with sealing and retaining -ring WH/TH BE O-ring and retaining ring Nm SHP-ED From E mit ED sealing Nm
Nm Nm
L 6 G 1/8A  9 18 18 18 18 18 18 18 13
8 G 1/4A 35 35 35 35 35 45 40 35 30
10 G 1/4A 35 35 35 35 35 45 40 35  
12 G 3/8A 45 70 70 70 50 70 65 70 60
15 G 1/2A 65 140 90 90 85 120 90 110 80
18 G 1/2A 65 100 90 90 65 120 90 110  
22 G 3/4A 90 180 180 180 140 230 125 180 140
28 G 1A 150 330 310 310 190 320   310 200
35 G 1 1/4A 240 540 450 450 360 540   450 400
42 G 1 1/2A 290 630 540 540 540 700   540 450
S 6 G 1/8A                25  
6 G 1/4A 35 55 40   45 45 40 55  
8 G 1/4A 35 55 40   45 45 40 55  
10 G 3/8A 45 90 80   60 70 65 90  
12 G 3/8A 45 90 80   60 70 65 90  
14 G 1/2A 65 150 115   145 120 90 110  
16 G 1/2A 65 130 115   100 120 90 110  
20 G 3/4A 90 270 180   145 230 125 115  
25 G 1A 150 340 310   260 320   420  
30 G 1 1/4A 240 540 450   360 540   550  
38 G 1 1/2A 290 700 540   540 700   600  

Tolerance of tightening torques listed in above table:+10%

Note: Lubricate stud with hydraulic oil before screwing in!

Tightening torques relate to counterpart made of steel.

*Thread M27x2