supply of gas regulator , gas regulator of kromschroder make with model no vgbf50f40 3z or exactly equivalent in other makes krom schroder/madas/honeywell/maxon and eclipse with the following specifications:- maximu m inlet pressure (pu max): 4 bar (400 kpa).; pressure test points: screw plugs at inlet and outlet for pressu re measurement and system testing.; housing material: aluminium body with internal elastomer-sealed dia phragms and valve components .; operating temperature: approximately -15 degree c to +60 degree c.; nominal size - 50 - flange connection dn 50 pn-16 to iso 7005.; overall height - 187 mm - vertical height of valve body.; body height - 83 mm - height excluding flange and top features.; face-to-face length - 180 mm - distance between flange faces.; flange outer diameter - 165 mm - size across flange outside.; bolt cir cle diameter - 125 mm - pn 16 flange bolting circle.; bolt hole diameter - 18 mm - standard pn 16 bolt hole size.; number of bolt holes - 4 - standard flange bolt count.; approx. weight -13 kg.; note: 1) tenderer shall quote along with the technical/dimensional catalogue and authorised dealer certificate. 2) only oem/auth orised dealers of oem shall participate in the tender. [ warranty period: 18 months after the date of deliv ery ] ]