specification for procurement of spares for condenser cooling water, chill water pump and air washer cooling water pumps of unit iv and v ac plant , spares for cooling water pumps and chiller pumps with all dimensions and material as per enclosed drawing. model sdc 100/125 make : beacon weir , shaft with lock nut and key , shaft sleeves , water thrower with o ring , pump gland , bearing cup , pump gland stud bolt with m12mm nut and double plate washer , impeller, dia 310mm. material : gun metal (as per sample) , supply of spares for cooling water pump as per drawing enclosed. model sdb 150/200make : beacon weir , shaft with lock nut and key , shaft sleeves , water thrower with o ring , pump gland bolt with nut and spacer , split gland , supply of spares for air washer cooling water pumps with all dimensions and material as per enclosed drawing. , filter element as per drawing enclosed