supply of volume boosters and air lock relays equipped in pneumatic dampers / actuators / control valves of boiler and turbine area at 2x660 mw , csctpp, rvunl, chhabra supply of volume boosters and air lock relays equipped in pneumatic dampers / actuators / control valves of boiler and turbine area at 2x660 mw , csctpp, rvunl, chhabra , smc make volume booster having below specifications: model : il100-02 input & output connection:- 1 / 4” rc signal connection: 1 / 4” npt max supply press: 1 mpa max output press: 0.7 mpa ratio: 1:1 flow capacity: 3 l / min. or equivalent to this , smc make volume booster having below specifications: model : il100-n02 input & output connection:- 1 / 4” npt signal connection: 1 / 4” npt max supply press: 1 mpa max output press: 0.7 mpa ratio: 1:1 flow capacity: 3 l / min. or equivalent to this , smc make volume booster having below specifications: model : il100-n03 input & output connection:- 3 / 8” npt signal connection: 1 / 4” npt max supply press: 1 mpa max output press: 0.7 mpa ratio: 1:1 flow capacity: 3 l / min. or equivalent to this , volume booster make: fisher emerson; model: 2625-12; supply port: 1 / 2 npt ( cv 4.98 ) ; exhaust port: 1 / 2 ( cv 3.40 ) ; max supply press: 150 psig; input to output ratio: 1 to 1; or equivalent to this , fairchildmake volume booster having below specifications: model : w20359 input & output connection:- 1 / 4” npt signal connection: 1 / 4” npt max supply press: 250 psig max output press: 150 psig ratio: 1:1 flow capacity: 76.5 cu m / hr exhaust capacity: 18.7 cu m / hr or equivalent to this , masoneilanmake volume booster having below specifications: model : br200 input & output connection:- 1 / 4” npt signal connection: 1 / 4” npt max supply press: 150 psig max output press: 150 psig ratio: 1:1 flow capacity: 1.2 exhaust capacity: 1.2 or equivalnt to this , masoneilanmake volume booster having below specifications: model : br400 input & output connection:- 1 / 2” npt signal connection: 1 / 4” npt max supply press: 150 psig max output press: 150 psig ratio: 1:1 flow capacity: 2.6 exhaust capacity: 2.4 or equivalent to this , philvin engineersmake air lock relay having below specifications: model : philairpl 20 s input & output connection:- 1 / 2” npt maximum inlet press. : 250 psig up to 60 deg. c range : 5-100 psig weight : 1 kg approx or equivalent to this , philvin engineersmake air lock relay having below specifications: model : philairpd10 s signal connection:- 3 / 8” nptf type : double acting maximum supply. : 7.5 kg / cm2 range : 5-100 psig signal press : 1.4 -7 kg / cm2 or equivalent to this , masoneilanmake air lock relay having below specifications: model : 78-80s signal connection:- 1 / 4” npt maximum inlet press. : 1.72 mpa range : 100-700 kpa flow capacity:0.8 in to out, 1.3 out to exhaust or equivalent to this