The main valve fittings with screw lid release, pressurereleasevalve.
将主阀盖上的配管接头螺丝松开，释放阀内压力。
2
All basket Strainers shall have pressurereleasevalve and safety pressure gauge.
所有篮式过滤器应该配置压力释放阀和安全压力表。
3
The utility model discloses a novel explosion venting dust cleaner which comprises a bag chamber. A pressurereleasevalve is arranged under the bag chamber.