API 650 mechanically-anchored flat-bottom tanks sliding friction

Shell Stiffening Rings for Tanks That Contain Liquid
Internal or external shell stiffening rings may be required to maintain roundness when the tank is subjected to wind, vacuum, or other specified loads. When API 650 mechanically-anchored flat-bottom tanks stiffening rings are required, the stiffener-to-shell weld details shall be in accordance with Figure Q-1 and Q.3.5.2 through Q.3.5.5.
Three-plate laps or butt-weld junctions in tank bottoms shall be not closer than 12 in. from each other or from the butt-welds of the annular plates.
Bottom plates, other than annular bottom plates for a 9% or 5% nickel steel or stainless steel tank that contains liquid, may have a minimum thickness of 3/16 in. exclusive of any specified corrosion allowance.The API 650 is widely used for tanks designed to withstand low internal pressures, for the API 650 mechanically-anchored flat-bottom tanks storage of typical products such as crude oil, petrol, chemicals and water. We have extensive experience when it comes to API 650 tanks, varying from tanks built in the factory up to +/- 500m3, to tanks built on-location up to +/-15,000 m3.3500 tons SA387GR5CL1 steel plate to make pressure vessel equipment in Pakistan. The main business of our this client from Pakistan is manufacturing Columns&Towers, Heat Exchanger,Waste Heat Recovery Boiler, Pressure Vessel&Reactors,Tanks, Metering Skid. And we supply API 650 mechanically-anchored flat-bottom tanks the Mill Certificate, Shipping picture, the marking of steel plate and we help client to do SGS inspection,API 650 mechanically-anchored flat-bottom tanks. Breathing valve: The function of the oil tank breathing valve is to adjust the oil and gas pressure in the tank. When the pressure in the tank is too high, part of the excess oil and gas will be discharged through the breathing valve to reduce the pressure in the tank; when the pressure in the tank is too low, through breathing The valve sucks in air from the outside of the tank to increase the pressure in the tank and keep it constant with the atmospheric pressure. The breathing valve is usually installed at the top of the oil tank.It is very important for a company to have a sound after-sales service system, which better guarantees the interests of customers and increases the reliability of the company's products in the hearts of customers. Our company has a dedicated after-sales service team and good after-sales service reputation, and has been recognized by customers over the past decades. Whenever there is problem about our API 650 mechanically-anchored flat-bottom tanks steel materials during application on the user site, our after-sales service persons will assist to find solutions at the first time.