Microvolume sample injectors are used to achieve sample sizes of .5 µl and 1 µl. The internal sample "loop" is actually an engraved connecting slot on the valve cap which is sized to contain a specified amount of sample. Valves are rated for 750 psi at 50°C, with Valco zero dead volume fittings for 1/32" or 1/16" tubing.
Actuator air (40-50 psi) is supplied to a side port with 10-32 female threads, permitting use of a variety of compression or barbed fittings. A 3-way solenoid is required for actuation. (Order separately.)
The standard valve is for applications in which the sample is above ambient pressure. An optional version works with subambient pressures, such as when the sample is "pulled" through the valve by a vacuum pump.
Includes stainless steel nuts and ferrules.
| Fitting size |
Bore | Sample size |
Product No. |
|---|---|---|---|
| 1/32” | 0.25 mm (.010") |
.5 µl | DV12-1114-.5 |
| 1 µl | DV12-1114-1 | ||
| 1/16” | 0.40 mm (.016") |
.5 µl | DV22-2114-.5 |
| 1 µl | DV22-2114-1 | ||
| 0.75 mm (.030") |
.5 µl | DV22-3114-.5 | |
| 1 µl | DV22-3114-1 | ||
| Optional mounting kit | DVBRKIT | ||