bids are invited for boq total quantity : 1--1 gas pressure regulators- carbon dioxide: specifications: inlet pressure: max 80 kg / cm2 ( co2 cylinder pressure ) , body & bonnet : brass forging body isi mark . is 6901:2009 outlet pressure: 0 - 16 kg / cm2, medium: carbon di-oxide, inlet connection: nut & nipple inlet connection : ext.w 21.8x 1.814 ( r / h ) f , outlet connection: 1 / 2 fnpt, inlet entry: left side of prv front, inlet and outlet shall be 180 deg opposite to each other, flow: 10m³ / h ( 150lit / min ) maximum inlet pressure guage: 0-100 kg / cm2, outlet pressure guage: 0 -16 kg / cm2, with pre filter of 5 micron relief valve at outlet: set at 10 kg / cm2 operating temperature range 100 degc, max temperature : 150 degc 4.00 no. 2 spare kit for the item no. 1: including ss diaphragm assembly, teflon gasket, diaphragm holder-male & female, valve seat assembly, valve pin, spring, valve seat, spring retainer, teflon washer, cs spring, spring holder, etc. spare suitable for item no. 1 20.00 set 3 diffusion resistant pressure regulating valve for helium gas service. specification : body & bonnet ss 316 diaphragm : ss 316l inlet pressure range: 0-200 kg / cm² ( upper limit can be more and max up to 280 kg / cm² ) * inlet pressure gauge : suitable pg range , dual marking both in kg / cm² & psig * outlet pressure : range 0-14 kg / cm² * outlet pressure gauge :: suitable pg range , dual marking both in kg / cm² & psig * inlet connection : direct mounting on cylinder , as per cga standard for helium cylinder ( 580 ) * outlet connection : ¼’’ fnpt compression fitting suitable for ¼’’ od * temperature range: 50?c to +60?c or better * inlet filter: dual filter of ss316 wire mesh & 10 micron sintered bronze or lower size * internal seals: ptfe teflon * valve: ss316 * outer wetted parts : ss316 * helium leak integrity : 1 x 10 -8 sec / sec or helium or lower 4.00 no. 4 spare kit for the item no. 3: including ss diaphragm assembly, teflon gasket, diaphragm holder-male & female, valve seat assembly, valve pin, spring, valve seat, spring retainer, teflon washer, cs spring, spring holder, etc. spare suitable for item no. 03 10.00 no. 5 3d lugs end sleeve female: size: 4 mm2 cat no. eh-517