... 150LB API Stainless Steel Gate Valve 2.API flexible wedge 3.flanged gate valve Function Description:Gate valve is a valve that the valve plate moves along the ... , CF8M, CF3, CF3M. 304 ,304L,316,316L. WCB, WCC 3). Class: 150LB, 300LB, 600LB, 900LB,1500LB, 2500LB4). Suitable medium: water, oil ...