D2 Dom-pressure regulator 37-3111101 Brass for oxygen use free of oil and grease seat and diaphragm off EPDM seat: 26mm Range of control: 0,5 – 5 bar The flange connection: PN 100 DN50 FORM B1 flow direction: from left to right With pressure gauge: inlet?pressure?gauge?:?15?barg,? outlet?pressure?gauge?:?10?barg? de-greasing report (free of oil and grease for oxygen) For above ordered valves HORNUNG D2 Dom-pressure regulator 37-1111101 Brass for oxygen use free of oil and grease single stage 与4M2759是同一个型号 因为上次报价的不锈钢阀体,法兰连接的减压阀价格实在是太高了,所以徐燃院想看一下黄铜阀体的,带压力表,有法兰和没有法兰的的这两者的价格,在其中选一个买两台。