Technical Data


External P/V Vent

P/V vent is installed on the top of the Tanker to ensure the safety when transportation. The design is according to the GB/T 18564.1-2006. High sensitivtity, when there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust air to adjust the pressure it is suitable for diesel, gasoline and kerosene and other light fuel. To the different installment mode, there are internal P/V vent and outernal one.

Benefit and Features

* No leakage when over rolled
When the tanker over rolled at the certain angle, it will automatically closed to prevent the inside fuel spills out.

* Superior Work
High precision spring makes it work more accurately.


We,Zhejiang Jialong Mechanical Equipment CO.,LTD,is the company which concentrates Design, Development, Manufacture, Marketing Sales,etc.in one,which produces the relative accessories for the Road Dangerous Fuel Transportation Parts.Since our establishment 1990's, we insist the company's principle" To ensure the Quality for surviving,to keep the promise for developing"all the time to keep positive developing tend. 
We try to carefully finish every working step to make sure the whole quality which comply with the elaborating Production Management ,as well as to provide perfect service which comply with the ISO Management Standard to satisfy all the users's demand. 
In china,we are the top supplier in the petrochemical industry.We are striving to be one of the top supplier in the petrochemical industry in the near future.