The sealing design criteria to measure the factors of spiral wound gasket were adopted, based on this bolt loads of flange can be determined by using the new PVRC method.

• 采用密封设计准则,通过试验确定了金属缠绕式垫片的垫片系数,在此基础上,按照PVRC新方法对法兰螺栓载荷进行了计算。