Product Item: Dual-Plate Lug Check Valve
Design Standard: API 594 Type A
Body Material: ASTM A216 WCB
Size: 4 Inch
Pressure Rating: Class 300 LB
Disc Material: ASTM A351 CF3M
Seat/Seal Material: ASTM A182 F316L/HF
Fire Safety Standard: API 6FA
End Connection: Lug Type
Source: https://www.landee.cn/dual-plate-lug-check-valve-api-594-type-a-a216-wcb-4-inch.html
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