3121 RE-GE Check valve

Size: 1/2″ to 4″ (DN 15 to DN 100)

Connection Type: Female gas threaded ends according to ISO 228/1

Working Pressure Range: PN 25 to PN 12 (25 bar max for sizes up to 1″; 18 bar max for 1 1/4″ to 2″; 12 bar max for 2 1/2″ to 4″)

Working Temperature: Air: -20°C to 110°C

Gas: -20°C to 60°C

Water: 0°C to 90°C (up to 100°C)

Minimum Opening Pressure: 0.04 bar

Materials: Hot-forged brass body (according to UNE-EN 12165), AISI 304 stainless steel spring, and vulcanized NBR gasket plate

Installation: Multipositional mounting (suitable for horizontal, vertical, and oblique configurations)