Check valves with cutting ring connection and cushion

Zinc plated steel
Materials: Bodies: Zinc plated steel, any existing elastomer seal: NBR
Temperature range: -40°C to max. +120°C (with an elastomer seal: -35°C to max. +100°C)
Stainless steel and NC-screw connection
Materials: Body: 1.4571, elastomer seal: Viton
Temperature range: -60°C up to max. +400°C (with elastomer seal: -20°C to max. +200°C, NC screw connections on request up to +550°C)
Materials: Type zinc plated steel: NBR seal, other materials upon request, Type 1.4571: >Viton seal, other materials upon request
Temperature range: Type zinc plated steel: -20°C to max. +100°C, Type 1.4571: -20°C to max. +200°C
Opening pressure: approx. 1 bar (± 20%)
Optional: Opening pressures: (steel: 0.5 bar -0.5, 2.0 bar -2, 2.5 bar* -2.5, 3.0 bar** -3), stainless steel available on request
*only for tube diameter >= 28 mm, **only for tube diameter <= 25 mm
Catalogue page Pneumatic Atlas 8 (Page 493) Technical documentation: Check valves Technical documentation: Cutting/compression ring fitting Suitable accessories:

Precision-hydraulic tube - seamless, EN 10305-4 (DIN 2445/2)

Stainless steel pipe lines - seamless, DIN EN ISO 1127

PTFE sealing tape, standard quality

Seal flax

Sealing paste for hemp or flax seals

Hydraulic gaskets with NBR inserts (self-centring)

Loxeal thread seals

Sealing strips for metal and plastic, Loctite

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