DESCRIPTION: Lug type dual plate check valves are mainly composed of body, disc, stem and spring. Due to its short structure, light weight, short disc closing stroke and fast closing, it can reduce water hammer. The disc is a semi-circular dual plate structure, which can rotate around the rotating shaft in the valve body. The stress of the rotating shaft must be on the same plane with the sealing surface of the valve body, so as to ensure the sealing when the valve is closed. Connection type: it adopts dual plate lug type is, which can make the valve body more beautiful in appearance, small volume and light in weight. SPECIFICATION: Size: 2”~24” (DN50~DN600) Pressure Rating: 150LB~2500LB (PN1.6MPa~PN42.0MPa) Main Material: WCB (A105), LCB (LF2), CF8 (F304), CF8M (F316), CF3 (F304L), CF3M (F316L), 4A (F51), Alloy Steel, Monel, Bronze etc. Connection End: Wafer, Lug Design Standard: API 594/ API6D Face to Face: ASME B16.10/ API 594/ EN558 Test and Inspection: API 598/ EN12266 FEATURES: 1. Short and compact in structure, light in weight, easy in maintenance. 2. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect. 3. It is easy to install on pipeline which is laid horizontally or vertically. 4. Safe and reliable in operation, high interference resistance.