supply of set of safety valves for ccb 2.0version pneumatic panel.set of safety valves for ccb 2.0version pneumatic panel.,set of safety valves for ccb 2.0version pneumatic panel. one set consists of 02 items o f 02 nos. (1)safety valve to kbi part no. ii91921/01085, qty-01 no. for electric ccb system of three p hase locomotives (2) safety valve to kbil part no. i79965/2105, qty-01 no for electric ccb system of three phase locomotives. as per drg. no. ii91921/01085 spec:ii91921/01085 [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]