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Tentec Nuts replace existing hexagon nuts to give
a rapid, accurate and uniform Bolt load to any bolted
joint. The Tentec Nut offers a method of bolt tensioning
multi-bolt applications which greatly improves the
integrity of the joint. The speed in which joints can be
tensioned and detensioned shows an extraordinary time
saving over conventional detachable bolt tensioning
systems. An existing Oil company user of Tentec Nuts has
recently reported a massive time saving of 1750% over
there old bolt tensioning system
The Principle
Hydraulic pressure is applied simultaneously to
each Tentec Nut. All frictional factors connected with
conventional bolt tightening methods are alleviated
since Tentec Nuts apply a direct axial force to the bolt
which generates a bolt elongation. This
elongation/tension is permanently retained by means of
the Load retaining Collar. Tentec Nuts have been
designed to be as compact as possible, in order to allow
adjacent fitment on as many applications as possible. In most cases they are
designed to produce a residual bolt stress of 45000
lbs/In2 (310N/mm2) which is more than adequate for most
bolted joint applications. As pressure is applied to the
Tentec Nuts not only does the bolt elongate but also
joint compression occurs. Since many applications
incorporate some form of gasket, this joint compression
can be substantial, in order to withstand this joint
compression all Tentec Nuts are capable of considerable
piston movement. This allows the tentec Nuts, in most
cases, the ability to tension a complete joint in only
one pressurisation sequence, this can result in
extremely high time savings.
Mouse View
Standard Range Data
|
Part
No |
Thread |
Part No
|
Load |
|
O' |
H' |
S' |
|
Metric |
In |
mm |
Imperial |
kn |
Tons |
mm |
mm |
mm |
|
BCHN:0022 |
7/8 |
M
22 |
BCHN:0875 |
190 |
19.1 |
54 |
48 |
5 |
|
BCHN:0024 |
1
|
M
24 |
BCHN:1000 |
205 |
20.6 |
57 |
48 |
5 |
|
BCHN:0027 |
1
1/8 |
M
27 |
BCHN:1125 |
220 |
22.1 |
60 |
48 |
5 |
|
BCHN:0033 |
1
1/4 |
M
33 |
BCHN:1250 |
265 |
26.6 |
67 |
51 |
5 |
|
BCHN:0036 |
1
3/8 |
M
36 |
BCHN:1375 |
325 |
32.6 |
73 |
54 |
6 |
|
BCHN:0039 |
1
1/2 |
M
39 |
BCHN:1500 |
373 |
37.5 |
78 |
56 |
6 |
|
BCHN:0042 |
1
5/8 |
M
42 |
BCHN:1625 |
424 |
42.6 |
83 |
58 |
6 |
|
BCHN:0045 |
1
3/4 |
M
45 |
BCHN:1750 |
445 |
44.6 |
86 |
60 |
6 |
|
BCHN:0048 |
1
7/8 |
M
48 |
BCHN:1875 |
523 |
52.5 |
93 |
70 |
8 |
|
BCHN:0052 |
2 |
M
52 |
BCHN:2000 |
629 |
63.1 |
102 |
71 |
8 |
|
BCHN:0056 |
2
1/4 |
M
56 |
BCHN:2250 |
781 |
78.3 |
112 |
75 |
8 |
|
BCHN:0064 |
2
1/2 |
M
64 |
BCHN:2500 |
941 |
94.4 |
124 |
86 |
8 |
|
BCHN:0068 |
2
3/4 |
M
68 |
BCHN:2750 |
1042 |
104.5 |
131 |
90 |
8 |
|
BCHN:0072 |
3 |
M
72 |
BCHN:3000 |
1246 |
125.1 |
144 |
94 |
10 |
|
BCHN:0080 |
3
1/4 |
M
80 |
BCHN:3250 |
1607 |
161.3 |
159 |
104 |
10 |
|
BCHN:0090 |
3
1/2 |
M
90 |
BCHN:3500 |
2027 |
203.4 |
176 |
114 |
10 |
|
BCHN:0095 |
3
3/4 |
M
95 |
BCHN:3750 |
2160 |
216.7 |
182 |
118 |
10 |
|
BCHN::0100 |
4 |
M
100 |
BCHN:4000 |
2466 |
247.5 |
200 |
124 |
15 |
|
BCHN:0110 |
4
1/2 |
M
110 |
BCHN:4500 |
2814 |
282.4 |
215 |
136 |
15 |
|
BCHN:0125 |
5 |
M
125 |
BCHN:5000 |
3820 |
383.4 |
244 |
148 |
15 |
|
BCHN:0140 |
5
1/2 |
M
140 |
BCHN:5500 |
4954 |
497.1 |
272 |
164 |
15 |
|
BCHN:0150 |
6 |
M
150 |
BCHN:6000 |
5655 |
567.5 |
290 |
176 |
15 |
|
Max
Working pressure
33,000
PSI/2275 bar |
|
