Tender For supply of multi stage gas regulator, type of gas: oxygen specification covered under general technica l requirement. specification: multistage gas regulators as per is: 6901/2018 rev-3 , with stainless steel di aphragm in first stage and neoprene in second stage and other specification as under technical stage and other specification as under technical requirement. specification: multistage gas regulator shall be suitabl e for (a) maximum inlet pressure of 230kg/s.q.c.m. for oxygen and flow rate of 1000 litres/minimum [ wa rranty period: 30 months after the date of delivery ]