ASME B16.34 Forged Check Valve Manufacturer: ASME B16.34 Forged Check Valve, 3/8-4 Inch, Class 150LB-2500 LB, ASTM A182 F316, API 602, ISO 15761. Key Specifications / Features ASME B16.34 Forged Check Valve Design Specifications: Body Material: ASTM A182 F316. Size: from NPS 3/8 ...