Abstract: Embodiments of the invention are directed to a sulfur trap comprising an inlet, a first chamber, a divider, a second chamber, an outlet, and a float assembly. The float assembly may have many different configurations, but generally comprises a float and plug, is configured to float within liquid sulfur, and is operatively coupled to a seal seat in the divider for sealing and unsealing the first chamber from the second chamber. Generally, only liquid sulfur is allowed to pass from the first chamber into the second chamber. However, the sulfur trap may be configured to allow for pressure relief, such that during an overpressure event the plug and seal seat disengage and allow the liquid-gas mixture to flow into the second chamber to prevent damage within the system. In some embodiments a filter and/or the flow of liquid sulfur is directed to collect debris from the liquid sulfur.

Abstract: To aid in maintaining a fluid flowing through a pipeline at a desired temperature at locations where two pipes are interconnected by a coupling, a jacket is provided which substantially surrounds and encloses the coupling and through which jacket a temperature controlling fluid is circulated in heat-transferring relation to the coupling.

Abstract: To aid in maintaining at a desired temperature a fluid flowing through a fitting in a fluid conveying system, a jacket means is provided which has a hollow housing of heat-conductive material which substantially surrounds the body of the fitting and through which a temperature-controlling fluid is circulated in heat-transferring relation to the body of the fitting.

Abstract: To aid in maintaining at a desired temperature a fluid being propelled through a fluid-circulating pump, a jacket means is provided which has a hollow housing of heat-conductive material substantially surrounding the body of the pump and through which a temperature controlling fluid is circulated in heat-transferring relation to the body of the pump.

Abstract: A jacketed pipe assembly of inner and outer tubular members having respective inner and outer corrugated metal tubes arranged in spaced relationship to define therebetween a fluid-circulating chamber adapted for the circulation therethrough of a temperature controlling fluid for aiding in the flow of a processing fluid through the inner tubular member. Coupling sleeves are connected by continuous welds to opposite ends of the inner corrugated tube, and means are connected to the outer ends of the outer corrugated tube and to the respective coupling sleeves to define therebetween respective opposite ends of the fluid-circulating chamber. The continuous connecting welds are surrounded by the fluid-circulating chamber, but are isolated therefrom by being enclosed within respective enclosures which are vented exteriorly of the pipe assembly so that cross-contamination between the inner corrugated tube and the surrounding fluid-circulating chamber will be prevented in the event of rupture of the continuous welds.

Abstract: A jacketed pipe assembly of inner and outer tubular members including respective inner and outer corrugated metal tubes arranged in spaced relationship to define therebetween a fluid-circulating chamber adapted for the circulation therethrough of a temperature controlling fluid for aiding in the flow of a processing fluid through the inner tubular member. Means including connecting welds are provided for interconnecting respective opposite ends of the inner and outer tubular members in such a manner as to define opposite end walls of the fluid-circulating chamber and to insure that cross-contamination between the inner corrugated tube and the surrounding fluid-circulating chamber will be prevented in the event of rupture of the connecting welds.