The Blue Flame Straight Valve is CSA Certified and for use with Natural, Mfd., Mixed, Liquefied Petroleum Gases and LP Gas-Air mixtures. The maximum operating pressure is 1/2 psi. The maximum and minimum operation temperatures are 125F and 32F. Features: Model # 910 is a straight globe-type valve with 1/2 F by 1/2F connections 6-1/2 turns of rotation between the full "off" and full "on" positions Maximum operation pressure is 1/2 psi Maximum and minimum operating temperatures are 125F and 32F Model "S" straight pattern valve 81,700 BTU's Brass body material, brass stem, MBR seal and the packing is graphite Blue Flame straight gas valve has a capacity rating of BTU/hour; 1000 BTU/cu. ft., 0.64 specific gravity; main burner load Blue Flame straight gas valve is an appliance valve specified as a gas burner valve