|Threaded body, knob and nut: Technopolymer plastic (Polyamide PA), black matte finish (knob not removable)
Steel, hardened, blackened finish, or
Stainless steel, European Standard No. 1.4305 (American Standard Series 303)
Stainless steel, European Standard No. 1.4319 (American Standard Series 302)
EN 617.2 indexing plungers with plastic body are a reasonably priced indexing plunger variant. The dimensions correspond to those of GN 617 or GN 617.1 indexing plungers.
Lock-out type C / CK is used for applications where the plunger has 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 this position.
Maximum heat resistance of technopolymer plastic: 130° C (265° F).