Specification:
Product Item: Lug Type Dual Plate Check Valve
Model Number: 184201030
Design Standard: ASME B16.34
Body Material: ASTM A351 CF8M
Nominal Size: 14 Inch, DN350, 350mm
Nominal Class: Class 300 LB, PN25-PN50
Trim Material: ASTM A182 F316, ASTM A182 F304
Metal seat: Stellite 6, Hardened Stainless Steel
Soft seat: PTFE, RPTFE
Operation Mode: Bare Stem
End Connection: Lug Type
Face to Face: API 594
Test and Inspection: API 598
Key Features: Lug Type Check Valves, Dual Plate Valves with Bare Stem
Source: https://www.bossealvalves.com/astm-a351-cf8m-dual-plate-check-valve-14-inch-300-lb-lug.html