On the numbered markings you receive further information.
1. Standard top flange
ISO 5211/DIN 3337 allows simple mounting of all actuator types
with secondary sealing
3. PTFE seat ring
in solid design according to DIN 3354, T5, diffusion stable, lined on all sides ensures permanent sealing to the stem exit and gate
4. Elastomer "spring element"
Exactly fitted elastic ring of silicone or EPDM behind the PTFE-seat ensures flexible sealing of the shut-off
5. PFA-coated disc
In transfer moulding, solid PFA-coated (min. 3mm) stainless steel carrier with stem protection-coating in the sealing area
6. Two-piece body
Standard length DIN EN 558-1 line 20 (DIN 3202 K1) Highly service friendly, simple exchange of wearing parts
7. Primary seal
integrated in the seat, provides play-free and pressure stable sealing to the outside. Pressure is applied by the spring loaded bearings.
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