A420 grade WPL6 pipe API Std 650 fixed roof tanks

,API Std 650 Fixed roof tanks. test procedure
The inner tank shall be opened to the atmosphere, and a sufficient amount of water shall be added to the inner tank to balance the upward pressure against the inner tank bottom produced by the pneumatic test of the outer tank; as an alternative, the pressure between the inner and outer tanks can be equalized. API Standard 620 Air pressure shall be applied to the space enclosed by the outer tank equal to at least the design gas pressure but not exceeding a pressure that would overstress either the inner or outer tank.We also specialize in internal and external floating roofs, cathodic protection, primary and secondary containment, and storage tank foundations. Our staff are skilled in producing API 650 petroleum storage tanks. If you need to replace or repair API Std 650 fixed roof tanks API 650 petroleum storage tanks, please contact us in time. Every API 650 petroleum storage tank we make emphasizes quality and safety.In year 2015, we supplied 950 tons S355J0 angle steel to Egypt government. We have cooperation with local government for more than 3 years. Every year, they would order more than 3000 tons of API Std 650 fixed roof tanks steel from our company.Generally, the building area temperature of the API Std 650 fixed roof tanks should be considered before the tank design and construction. The temperature in the API Std 650 fixed roof tanks building area is closely related to the evaporation loss, energy loss, storage tank materials and the selection of detection instruments, or has a direct impact on the storage cost of the storage liquid. For the same medium, the higher the air temperature and the longer the duration, the higher the material temperature in the API Std 650 fixed roof tanks, the higher the corresponding pressure and the more volatile loss.The company formulates clear service process and service standard. To do a good job in after-sales service, first of all, clear service process and service standards should be formulated to let employees know which procedures to perform and which service standards to abide by.