check valve Model: HD7B42X valve Nominal diameter: DN500-5000mm valve Nominal pressure: PN0.61.6MPa Applicable temp -10-80C check valve Model: HD7B42Xcheck valve Nominal diameter: DN500-5000mmvalve Nominal pressure: PN0.61.6MPavalve Applicable temperature:-10-80CApplicable medium:water hydraulic check valve
