一、双杠杆安全阀简介双杠杆安全阀适用于温度≤450℃的电站锅炉和压力容器上，防止压力超过允许***高值，介质可为蒸汽、空气。二、双杠杆安全阀主要零部件材料GA44H杠杆型零件名称材料阀体碳钢导向套不锈钢阀瓣2Cr13阀杆2Cr13杠杆碳钢重锤铸铁三、双杠杆安全阀外形尺寸和连接尺寸型号公称通径GA44H杠杆型尺寸do-zDD1D2D6ff2bZ-ødHL承插式法兰式d1k2k3D3DN"D2"D1"D"b"f"z1-ød1GA44H-1.68050×2200160135/3/208-184108401201451621901502102402802438-23GA44H-2.58050×2200160135/3/228-184108401201451621901502102402802438-23GA44H-4.08050×220016013512134228-184108401201451621901502102402802438-23GA44H-6.48040×221017014012134308-23480840200218253285200255280315223)