Indexing plungers GN 8170 are certified according to the DGUV Test and meet hygienic requirements on the knob side. Wipers between the knob and the threaded body as well as the sealing ring between the threaded body and the housing keep the mechanics on the knob side sealed. The high surface quality (Ra < 0.8 µm) and the free of dead-space mounting prevent dirt from adhering and facilitate cleaning.
Indexing plungers with lock-out (type C) are used for applications where the plunger pin needs to stay in its retracted position. To achieve this, the knob is rotated by 90 degrees after being retracted. A notch keeps the plunger in the retracted position.
Mounting holes and through-holes in the housing must be drilled at a right angle, free of burrs and without a chamfer. This ensures that the sealing rings will function after being mounted.
RoHS
| B | Non lock-out |
| C | Lock-out |
| FH | Without sealing lock nut, knob side in Hygienic Design |
| d1 Pin -0.003 Bore +0.001 | d2 | d3 Thread | d4 | d5 | l1 | l2 | l3 | k | A/F1 | Spring load ≈ Initial | End |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.24 | 1.38 | M 12 x 1.5 | 0.71 | 0.90 | 0.24 | 0.47 | 1.96 | 1.14 | 0.55 | 4.50 lbf (20 N) | 8.09 lbf (36 N) |
| 0.31 | 1.38 | M 16 x 1.5 | 0.71 | 0.90 | 0.31 | 0.47 | 2.14 | 1.14 | 0.55 | 4.95 lbf (22 N) | 7.19 lbf (32 N) |
| Min | Max | Price |
|---|---|---|
| 1 | 9 | $99.52 |
| 10 | 24 | $91.22 |
| 25 | 49 | $82.93 |
| ≥ 50 | $74.64 |
Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time: 800-877-8351
