procurement of pressure, level and temp. and differential pressure switch for balance of plant, stps sarni , pressure, level and temp. & differential pressure switch for balance of plant , top mounted displacer operated level switch (40hwp/422/6/has/ssw) range-0-11000mm , spares micro switch assembly , external mounted displacer operated level switch (40hwp/411/6/ssw/e6-1) range-0-300mm , spares micro switch assembly , water flow switch wfs-6000, 1500 psi, 100c.1” npt, 15a 250volt , pressure switch (range 0.2-1.6 kg/cm2) , pressure switch (range 0.4-4 kg/cm2) , pressure switch (range 0.7-7 kg/cm2) , pressure switch (range 1-10 kg/cm2) , pressure switch (range 1.6-16 kg/cm2) , differential pressure switch range (0.1 to 1.5 bar) , temperature switch with capillary