SF double underground gas service station fuel tank
SF double underground tank shell FRP has the ability to resist low temperature and impact, even in the harsh environment, will not corrode the shell. The tank is designed with vent pipe, nominal diameter ≥ 50mm, fuel tank’s vent pipe mouth should be set flame arrestor, HNJS underground tank should be installed manhole operation well, well seat using a cylinder, the inner diameter of 1200 mm or 1350 mm, the height of 500 mm above the tank shell, manhole operation well seat and manhole well connection to ensure sealing.
The manhole operating well seat is preferable to use the same material as the outer tank cylinder, cylinder thickness ≥ 8 mm, when the manhole operating well seat cylinder using metal materials, the cylinder thickness should not be less than 6 mm, should be connected with the inner tank cylinder reliably, and should use appropriate anti-corrosion measures. The manhole should be set up with the inner wall of the inner tank shell and impact plate connected to the grounding flat steel and access to the gas station grounding network
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