VALVE, CHECK; TYPE: WAFER; SIZE: 4 PRESSURE RATING: 150LB; BODY MATERIAL: A216 GR WCB; DISC MATERIAL: 13CR; SEAT MATERIAL: STELLIT E 6; DESIGN STANDARD: API 594; DRAWING NO: GS070302/1; MANUFACTURER PART NO: LVCAAD0104; EQUIPMENT MANUFACTURER NAME: PEACH VALVE; E QUIPMENT MODEL NO: WS1-6X, C6-A3R; ADDITIONAL INFORMATION: DUAL PLATE; PLATE MATERIAL: CA15