GN8170 Indexing Plunger, Stainless Steel, Full Hygienic Design

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Identification VH - Knob and Pin side Hygienic Design (full hygiene)

Type B - without rest position

Type C - with rest position

Product Description

GN8170 Indexing Plunger, Stainless Steel, Hygienic Design

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.

Specification

Stainless Steel - AISI 316 (A4), Plunger pin case hardened

Spring - Stainless Steel AISI 301

Seals, blue, FDA compliant - temperature resistant -25 °C to +150 °C

Sealing ring H-NBR, hardness 85 ±5 Shore A

Wiper TPU, hardness 95 ±5 Shore A

All moving parts lubricated with FDA-compliant special grease