... ,4.0,6.4,11MPa; ANSI 150,300,600LB; JIS 10,16,20,30,40Kflow characteristicAs chart 1Temperature range-40~+550 ... /2"Design Manafacfure standard GB/T 12237-2007,GB/T 4213-2008The valve structure lengthGB/T 12221-2005Flange StandardJB/T 79.1~79.4 ... -1994,GB/T 9113-2000, ANSI,JIS,DIN Note:working ...