High Pressure Storage Tank

A pressure tank has a pressure of 15 psi or greater. Types of pressure tanks include:

  • High-pressure horizontal tanks are long tanks with rounded ends. They are commonly used in the storage of compressed liquefied gases such as propane, anhydrous ammonia, chlorine and vinyl chloride. Normal working pressure can range from 100-500 psi. The valves and fittings will contain liquid valves, vapor valves, and pressure relief devices.
  • These types of containers can also be stored underground. If stored underground, location of these tanks can be recognized by the presence of a lid that covers valves and fittings for tank service and maintenance.
  • High-pressure spherical tanks are round in shape with normal working pressures of 100-500 psi. These tanks will have liquid and vapor valves/lines. Typically the liquid lines will be larger than the vapor lines to make loading and off loading faster. These types of containers are used in the storage of liquefied gases fuel gases such as methane and LPG. They can also contain other liquefied gases such as anhydrous ammonia and vinyl chloride.
Three images of high pressure storage tanks. Top image is a white cylindrical tank take from the side with industrial pipes. Second image is a black plastic cover in the ground for access to an underground storage tank. The third image is a front image of a storage tank, white with red stripe with white "Suburban Propane" written in white. The tank is on a red stand.