Tender For supply of multistage agro shield regulator/argon regulator to is specification 6901-2009 with additional adopter for argon cylinder fitting. specification: - i) is: 6901-2009 & bs en iso-2503/1998. ii) working pressure: - a) maximum inlet pressure-300 bar. iii) maximum flow:- 25 liter/min. iv). inlet connection- 5/8 inch bsp r/h (male). v) outlet connection- 3/8 inch r/h (male). vi) should be fitted with:- a) inlet pressure gauge0 to 400 bar and flow meter gauge 0 to 50 lit/min b) forged brass body & cap spring. c) fire retardant valve. d) safety valve e) inlet filter fitting. [ warranty period: 30 months after the date of delivery ]