tender for procurement of mellcon make air pressurizing unit (apu) spares with servicing at ph-i, 2x600mw, sstpp, dongalia. , supply part , pressure regulator (prv1)-as per drawing (job no. csb 178) , pressure regulator (prv2)-as per drawing (job no. csb 178) , flow indicator(fi1)-as per drawing (job no. csb 178) , flow indicator(fi2)-as per drawing (job no. csb 178) , solenoid valve regeneartion unit (1 inch)- as per drawing (job no. csb 178) for both unit , auto drain valve - as per drawing (job no. csb 178) , after filter cloth type- as per drawing (job no. csb 178) for both unit , pressure reducing valve-as per drawing (job no. csb 178) , pre filter-as per drawing (job no. csb 178) , safetyvalve -1 as per drawing (job no. csb 178) , safetyvalve -2 as per drawing (job no. csb 178) , annunciator- as per drawing (job no. csb 178) , timer as per drawing (job no. csb 178) , different pressure transmitter as per drawing (job no. csb 178) , pneumatci main control valve as per drawing (job no. csb 178) , mannual drain valve as per drawing (job no. csb 178) , filter pr. regulator as per drawing (job no. csb 178) , carbon filter as per drawing (job no. csb 178) , work part , m/s mellcon service engineer charges(per day basis) for servicing air pressurising unit(apu)