Check valves with cutting ring connection

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: Seal: NBR (Type 1.4571: Viton)
Temperature range: -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
Warning: For the assembly of stainless steel screw connections please use PASTE ES.
*only for tube diameter >= 28 mm, **only for tube diameter <= 25 mm
Catalogue page Pneumatic Atlas 8 (Page 492) Technical documentation: Check valves Technical documentation: Cutting/compression ring fitting Suitable accessories:

Stainless steel pipe lines - seamless, DIN EN ISO 1127

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