bids are invited for custom bid for services - 1 testing of 4 port msv srv raipur lpg plant is having two msv’s. all the msv’s are having two 4 inches multi port valves. srv’s are set at different pressure. peso approved rule 18 certification to be issued by vendor 2 testing of sphere srv raipur lpg plant is having three spheres with 2 srvs each. the size of each srv is 6”x 8”. srv’s are set at different pressure. peso approved rule 18 certification to be issued by vendor 3 testing of srv pressure vessel testing of safety relief valve of knockout drums, air vessels and compressors. size of srv varies from ½ inches to 2 inches. necessary certification approved by competent authority to be issued. 4 testing of srv 425kg lpg cylinder testing of safety relief valve of sumo/ 425kg lpg cylinders. necessary certification approved by competent authority to be issued. 5 testing of trv/tsv thermal safety valve is to be tested and calibrated. necessary certification approved by competent authority to be issued