Specifications

5
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MANUAL INJECTION VALVES
Sample Loops
Stainless steel loop ends are square cut
a
nd burr-free for a flush connection to
the valve. They are also supplied with
unswaged fittings. Flexible PEEK loop ends
feature a clean, straight cut for low dead-
v
olume connection. Both types of sample
loops are factory-cut and finished to the
highest quality.
Stainless Steel Sample Loops
Remember … size designations for loops
are nominal.
The actual volumes can differ
from their theoretical designations because
of the ±0.025 mm (0.001
″) tolerance of the
metal tubing bore.
Generally, accuracy rates are about ±5%
for large metal loops (1.0 mm, 0.040
″), ±10%
for intermediate loops (0.5 mm, 0.020
″),
and ±30% for small loops (0.2 mm, 0.007
″).
However, since both standards and
unknowns are typically analyzed using the
same sample loop, knowledge of the actual
volume is rarely needed. If you do need to
know the sample volume, it is best to
calibrate the loop while it is on the valve,
so the valve’s flow passage is also
taken into account.
Important: Sample loops for the
7725 Series and 7125 Series are not
interchangeable. That’
s because
the port angle is 30
° for the 7725,
and 20° for the 7125.
Stainless Steel Loops for 7125 and 7010 Injectors
Stainless Steel Loops for 7725 Injectors
Description ID (mm) Part No. Price ($)
5 µl 0.18 1535-4860 83
10 µl 0.30 0101-0376 42
20 µl 0.51 0101-0377 37
50 µl 0.51 0101-0378 41
100 µl 0.51 0101-0379 42
200 µl
0.76 0101-1252 45
500 µl 0.76 0101-1251 51
1 ml 0.76 0101-1219 48
2 ml 1.00 0101-1250 87
5 ml 1.00 0101-1249 149
Description ID (mm) Part No. Price ($)
5
µl
0.18 0101-1248 44
10 µl 0.30 0100-1923 41
20
µl
0.30 0100-1922 37
50 µl 0.51 0100-1924 41
200 µl 0.76 0101-1247 45
500
µ
l
0.76 0101-1246 51
1 ml 0.76 0101-1245 57
2 ml 1.00 0101-1244 87
5 ml 1.00 0101-1243 149