The body and flange are airproofed by shell.
阀体与连接法兰的密封为体盖密封。
Body, bonnet, connection flange, disc.
阀体，阀盖，连接法兰，阀瓣。
Is suitable for through flange valve sealing pressure and valve body intensity pressure performance test.
适用于直通法兰式阀门的密封压力和阀体强度压力性能试验。
Is suitable for through flange valve sealing pressure and valve body intensity pressure performance test.
适用于直通法兰式阀门的密封压力和阀体强度压力性能试验。
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