248802 ⎘
Fluid handling; With liquid valves or liquid trap seals; Liquid seal in liquid flow line; flow liquid forms seal U-seals
Sub-classes:Safety valve of low-pressure gas pipe
#2Gas-liquid separation system and method thereof
#3Method and apparatus for preventing drain line clogging over an extended time using liquid or solid biocides
#4Flexible and extendable plumbing trap device