| The 8500 STS may be used in a variety of storage tanks and is generally installed in the
first course of the tank shell, about three feet (1 m) above the bottom of the tank. It may
be used in fixed roof or floating roof tanks, as long as it is below the pin height at which
the floating roof rests.
In high pressure applications, such as spheres, horizontal cylinders or bullets, flanged
models for 150 psig (1 MPa) and 300 psig (2 MPa) service are available.
The 8500 STS is designed to meet the high quality and long life required by the storage
tank industry. For resistance to corrosive attack in most hydrocarbon service
applications, the socket is constructed of 304 stainless steel. 316 stainless steel is
utilized in the construction of the sheath and hex nipple.
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