overload relief valve

• 超载安全阀,超载泄放阀

overload relief valve的用法和样例：

例句

1. Why didn't you fit a drain valve on this tank?
   这个箱柜居然没有安装泄放阀。
2. Rupture discs may only be used as a primary overpressure device in place of a relief valve with approval from SECCO.
   经赛科批准爆破膜只可用作取代泄放阀的主要过压装置。