Knob and Pin Side Hygienic Design (Full Hygiene), Certified acc. DGUV Test
GN 8170 Stainless Steel Indexing Plungers
Type
| B | Without rest position |
| C | With rest position |
Identification
| VH | Knob and pin side Hygienic Design (full hygiene) |
| d1 Plunger f8 Bore H8 | d2 | d3 -0,1 | d4 | d5 | d6 | l1 | l2 | l3 | l4 | s Clamping length min. | max. | A/F1 | A/F2 | Spring load in N ≈ initial | end | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 35 | 16 | 18 | 22,8 | 22 | 6 | 27,5 | 50,5 | 14,5 | 29 | 1,5 | 4 | 14 | 18 | 20 | 36 |
| 8 | 35 | 16 | 18 | 22,8 | 22 | 8 | 29,5 | 55,5 | 14,5 | 29 | 1,5 | 4 | 14 | 18 | 22 | 32 |
Specification
Plunger pin case-hardened
Pressure spring
Stainless steel AISI 316Ti
Seals, blue, FDA compliant
Temperature resistant -25 °C to +110 °C
- Sealing rings
H-NBRH
Hardness 85 ±5 Shore A - Wiper
TPU
Hardness 95 ±5 Shore A
All moving parts lubricated with FDA compliant grease
DGUV Test Certificate
Operating instruction GN 8170-VH
Brochure on Hygienic Design
Load Rating Information
ISO Fundamental Tolerances
Elastomer Characteristics
Stainless Steel Characteristics
RoHS
Information
Stainless steel indexing plungers GN 8170 are certified according to DGUV Test guidelines, and with their additional sealing nuts, they meet hygiene requirements on the knob and pin sides (full hygiene).
Wipers between knob and guide and between guide and pin as well as sealing rings on the guide and sealing nut keep the locking mechanism leak-tight. At the same time, the high surface quality (Ra < 0,8 µm) and dead-space-free mounting prevent dirt from adhering and facilitate cleaning.
Indexing plungers with a rest position (Type C) are used for such applications where the plunger has to stay in its retracted position. In that case, the knob is retracted and afterwards turned by 90°. A notch keeps the plunger in this position.
Through-holes in the housing must be at a right angle, free of burrs and without a chamfer. This ensures that the sealing rings will function properly.
| How to order |
| ||||||||
GN 8170-6-B-VH-H |
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