H61W-600LB锻钢止回阀

mso-hansi-font-family:"Times New Roman"">锻钢止回阀有三种阀盖设计形式. "Times New Roman"">第一种是螺栓式阀盖, "Times New Roman"">按这种设计形式设计的阀门, "Times New Roman"">其阀体与阀盖用螺栓螺母连接, "Times New Roman"">缠绕式垫片(316 "Times New Roman"">夹柔性石墨制造) "Times New Roman"">密封.客户有特殊要求时也可采用金属环连接. mso-hansi-font-family:"Times New Roman"">第二种设计形式是焊接式阀盖, "Times New Roman"">按这种设计形式的阀门, "Times New Roman"">其阀体与阀盖用螺纹连接, "Times New Roman"">全焊密封.客户有特殊要求时也可采用透焊连接. mso-hansi-font-family:"Times New Roman"">第三种是压力自紧式阀盖, "Times New Roman"">按这种设计形式设计的阀门, "Times New Roman"">其阀体与阀盖用螺纹连接, "Times New Roman"">内压自密环密封.

mso-hansi-font-family:"Times New Roman"">止回阀存在三种不同的设计结构, "Times New Roman"">它们是升降式止回阀, "Times New Roman"">球式止回阀和旋启式止回阀.

mso-hansi-font-family:"Times New Roman"">止回阀制造标准

mso-hansi-font-family:"Times New Roman"">止回阀的设计与制造符合MSSP-118 "Times New Roman"">和ASME B16.34. "Times New Roman"">检验与测试按API 598, "Times New Roman"">标记按MSS-SP-25.

mso-hansi-font-family:"Times New Roman"">承插端符合ASME B16.11,  mso-hansi-font-family:"Times New Roman"">螺纹连接端 (NPT)  "Times New Roman"">符合ANSI/ASME B1.20.1

mso-hansi-font-family:"Times New Roman"">主要连接尺寸(MM) "Times New Roman"">和重量(KG)     800Lb