procurement of complete hp manual valves and motorize valves without actuator installed at boiler side of unit 1 x 500mw unit at sgtps birsinghpur. , glove valve (hand operated) make: m/sbhel, m/sshri iyyappa & m/s l&t valves ltd. , super heater drain line valve:- nb-65, wcb, class- 2500 , end con.- bw, oper.-h , super heater drain line valve:- nb-80, wcb, class- 2500 , end con.- bw, oper.-h , gate valve (without actuator) make: m/sbhel, m/sshri iyyappa & m/s l&t valves ltd. , s-29 & s-30:- nb-80nb, wc9, class- 3500 spl, end con.- bw, oper.-mo , s-71 to s-75:- nb-100, wc9, class- 2850spl , end con.- bw, oper.-mo , glove valve ( without actuator) make: m/sbhel, m/sshri iyyappa & m/s l&t valves ltd. , sb-06 & sb-07:- nb-100, wc9, class- 2500, end con.- bw, oper.-mo , s-86, b-80, b-70, b-71 & b-65 : - nb-65, wcb, class- 1500 spl, end con.- bw, oper.-mo , s-88 & s-89:- nb-80, wcb, class- 1500 spl , end con.- bw, oper.-mo , msv-03 & msv-04:- nb-80, wc9, class- 3500, end con.- bw, oper.-mo , s-71a to s-75a(integral bypass valve for s-71 to s-75):- nb-20, f22, class- 3000spl , end con.- sw, oper.-mo , regulating valve (without actuator) make: m/sbhel, m/sshri iyyappa & m/s l&t valves ltd. , b-66, b-81 & s-87:- nb-65, wcb, class- 1500 spl, end con.- bw, oper.-mo , msv-05 & msv-06:- nb-80, wc9, class- 3500, end con.- bw, oper.-mo