supply of (1) safety relief valve (2) gas governor for lpg(1) safety relief valve (2) gas governor for lpg,safety relief valve size : 1 bsp (f) opening range : 165-330 mbar, set pressure : 200 mbar, spring : black (75441809) with model no. vsbv 25r40-4z of make- kromschroder [ warranty period: 12 months after the date of delivery ] ] , gas governor for lpg max inlet pr.: 900 mbar max. flow : 312 ncu. m/hr dp at max. flow : 14 0 mbar.outlet pressure : 100-160 mbar factory set pressure : 140 mbar. impulse line : 3/8 bsp (f) end co nnection : 3 flanged spring : black/red (75438984) with model no. vgbf 80f10-3z of make- kromschrod er [ warranty period: 12 months after the date of delivery ] ]