The photographs above show insulated pipe supports designed for a system being installed in a very cold climate in Russia. The insulating components are inside next to the pipe. The outside components are galvanized steel. In the foreground of the photo at the right are two fixtures which were built for load testing these pipe supports by applying known forces with a hydraulic load cell. Piping Technology & Products, Inc., fabricated prototype units for a Houston Engineering Firm and tested the units. After successful tests a number of similar units were built for shipment to Russia.
The photograph above shows a launcher-receiver designed to be installed in a six inch pipe to launch and receive pipeline pigs. Pigs can be used for cleaning or for separation of two products in the same pipeline. This launcher-receiver was one of two built by the SWECO Fab, Inc. division of Piping Technology & Products, Inc. for a major Gulf Coast Refinery.
The photograph above shows a surge protection vessel fabricated to ASME code specifications by Sweco Fab, Inc. This vessel was purchased by a major Houston E&C firm for export to an overseas project.
The photograph above shows hydraulic snubbers which are used to protect critical components in refineries, power plants and other industrial systems from sudden movement by the attached piping system. Engineers specify these devices for systems which are subject to sudden accelerations caused by earthquakes, extreme wind loads or water hammer. The insert at the upper left shows eight snubbers, some are different sizes and six have dust covers to protect the piston seal. The snubber at the bottom has hardware attached so it is ready to be installed. Hydraulic snubbers resist sudden rapid movement of the pipe by limiting the flow rate of the fluid inside the snubber. The device is designed so slow movement, such as would be expected during thermal expansion, has practically no resistance, but sudden rapid movement is resisted with a force proportional to the velocity raised to a power, where the power is determined by the orifice valve and flow pattern in the design. Selection of materials and liquids used will depend on the environment where the snubber is installed.